CN104271098B

CN104271098B - Cover member and disposable absorbent article

Info

Publication number: CN104271098B
Application number: CN201280073040.8A
Authority: CN
Inventors: R·帕斯夸莱; F·斯皮内利
Original assignee: SCA Hygiene Products AB
Current assignee: Aishirui Health And Health Co Ltd
Priority date: 2012-05-09
Filing date: 2012-05-09
Publication date: 2016-09-14
Anticipated expiration: 2032-05-09
Also published as: MX2014013027A; WO2013167179A1; CN104271098A; JP6092370B2; JP2015515890A; IN2014DN09700A; MX341238B

Abstract

The application relates to a kind of cover member for disposable absorbent article (20).Described cover member (20) along longitudinally (Y) and laterally (X) extend and have and be perpendicular to described longitudinal direction (X) and thickness direction (Z) that described horizontal (Y) extends.Described cover member (20) at least includes the first nonwoven layers (50), the second intermediate layer (60) and the impermeable inner film layer of liquid (80), they are laid in this order along described thickness direction (Z), the impermeable inner film layer of described liquid (80) is provided with at least one figure (90) at it on the side of described second intermediate layer (60), and described figure has along described longitudinal direction (Y) and the expanded range of horizontal (X).One of described first nonwoven layers (50) or the second intermediate layer (60) possess at least one opening (70), described opening along described longitudinal direction (Y) and laterally (X) extend described figure (90) region in and described figure (90) at least some of on extension.Described first nonwoven layers and described second intermediate layer do not have another layer of opening at least in the described at least one of region covering described figure, there is optical transmittance thus through described figure seen from another layer described described at least partially.The application further relates to include a kind of disposable absorbent article (10) of disclosed cover member (20), such as diaper, incontinence pant or sanitary towel.

Description

Cover member and disposable absorbent article

Technical field

The present invention relates to a kind of cover member being provided with figure for disposable absorbent article.This Outward, the present invention relates to a kind of disposable absorbent article such as diaper, incontinence pant or sanitary towel, have It is provided with the cover member of figure.

Background technology

This disposable absorbent article is the article that adjacent health is dressed, and is used for accommodating and absorbing Body exudates such as urine, blood, feces and antiperspirant.Typical disposable absorbent article includes inhaling Receive core, absorbent cores be arranged in be suitable in the face of with the interior top flat typically contacting user skin with for preventing The waste liquid being only absorbed by the absorbent core is between the enclosing cover layer that article leak out.The interior top of absorbent commodity Sheet be typically fluid permeable to allow bodily waste through to be absorbed by the absorbent core.

As time goes by, disposable absorbent article is developed and present continuously further It is usually provided with the multi-part outer housing with various different material and layer.Multi-part outer housing the most generally quilt It is referred to as egative film or cover member.By utilize material and layer some combination, it is provided that with regard to flexibility, High performance cover member for fabric similarity, liquid impermeability and breathability etc..Therefore, This disposable absorbent article be now high complexity product and by must in process of production with The a large amount of parts composition used at a high speed and assemble.

For these multi-part outer housings, usually it is intended to include from the visible printed pattern of exterior Such as letter, word image and/or numeral etc..By utilizing printed pattern, diaper becomes use For person more attractive joyful and also more like underwear, figure is alternatively user or is fastened by article Nursing staff with user provides vision to assist.Unfortunately, various in multi-part outer housing The existence of material and layer makes it difficult to show printed pattern so that they are prone in the way of clear and distinct Visual discrimination.

Have been carried out some trials to realize this purpose.Such as in GB2293573, disclose tool There is the egative film of thin layer and outer layer.Thin layer is provided with the color different from the outer layer of egative film, and outward Layer is the most transparent in some region.This allows for the color through thin film seen from the transparent region of outer layer. By the heated transparent region obtaining outer layer with pressure of respective regions making opaque nonwoven layers, Thus fibers melt in these regions and form filmy structure.

EP1738729 discloses a kind of enclosing cover layer laminate, has the first film layer, preferably of tape label The second layer of nonwoven layers and be the most also the third layer of nonwoven layers.Third layer is as landing area and little In the second layer.In this example, by the most translucent, the two nonwoven layers is applicable to increase Add the visibility of labelling on thin-film material.

Offer known in the art is with the outer nonwoven layer of the egative film of printed pattern.But, it is used for inhaling The printing quality on nonwoven type on the property received article is less clear and can not press figure and attached Figure, wherein need clearly lines or complete panoptic region so that the aesthetic effect needed for Huo get ing.Cause This, using inner film layer is the photo with gem-pure lines or accompanying drawing for the advantage of printing Can be printed onto on it.In outside nonwoven layers, owing to the structure of layer, the accompanying drawing of printing or photo will tools There are fuzzy lines and unsharp region.If needing lines such as line of text clearly, do not make Use outer nonwoven layer.

EP1078620 and US7214849 discloses how the alternative increasing figure visibility.This A little documents disclose the absorbent commodity with the extra printed sheet being clipped between bilayer.Extra printing Sheet is preferably smaller than outer layer, and this allows to form printed sheet with low cost.

Configuring about known to other, JP-A-2002-272783 discloses to be had with two nonwoven layers Diaper with the external module of configuration elastomeric element therebetween.Additionally, pattern or figure may be disposed at It is configured on the egative film on inside external module and this figure is intended to be seen through two nonwoven layers. But, in this configuration, the visibility of figure often decreases.

US2005/0131366A1 discloses a kind of absorbent commodity with decoration element or figure.? In the document, disclose the liquid barrier layer with decoration element and covering arranged on its outer surface The outer layer of described liquid barrier layer.Outer layer is provided with the optical lens allowing decoration element to see through outer layer Penetrate rate.In an alternative embodiment, it is possible to provide two outer layers, and liquid barrier layer is arranged on outside two Below layer or between two outer layers.But in all cases, whole outer layer must be formed as having suitable Suitable optical transmittance, this can substantially affect other performance required of described layer.

EP1179330A2 discloses the laminate for disposable diaper, including two outer layers and setting Elastomeric element therebetween.Graphic designs may be set on label etc., and will wherein combination layer The region being provided with graphic designs on binder width is made stiff in order to avoid this region is wrinkling.

Finally, EP1452157Al discloses a kind of exterior layer laminate forming absorbent commodity outer surface. Exterior layer laminate includes outer layer, internal layer and configuration multiple elastomeric elements between the two layers, elastic A part for parts be made into inelastic and pattern sheet material with pattern or figure insert outer layer with Between internal layer with cover elastomeric element be made into inelastic area.Outer layer makes it possible to from outside See pattern sheet material through it, or the egative film of absorber alternatively is omitted and pattern sheet material is made into Liquid is impermeable and whole vertical axis extension along diaper is using as egative film.But, at this article In offering, pattern sheet material is necessarily located on outside, or whole outer layer must be the most translucent so that figure Visible.In either case, it is necessary to require to make between performance at other of figure visibility and egative film Compromise.

Although the above-mentioned disclosure quoted is exemplified with the activity of this area, it is still desirable to a kind of by height The cover member that performance and aesthetic appearance are combined.In particular it is preferred to constituting product structure Keeping balance between graph position in number of components and outer housing, therefore for user, figure seems Attractive in appearance and in view of the described article of manufacture quality costs are minimized.

Summary of the invention

From prior art, it is an object of the invention to be modified to be provided with the disposable absorption of figure The cover member of property article.

Therefore, in the first aspect, the present invention relates to a kind of outer housing for disposable absorbent article Assembly.Cover member is along longitudinal Y, horizontal X and is transversely to the machine direction Y and the thickness side of laterally X extension Extend to Z.Cover member at least includes that the first nonwoven layers, the second intermediate layer and liquid are impermeable Inner film layer, these layers are put along described thickness direction layer in this order.In using, described liquid is not Permeable inner film layer be placed as along described thickness direction Z than the most described first nonwoven layers and Second intermediate layer is closer to user.The impermeable inner film layer of described liquid is described faced by it It is provided with figure on the side in the second intermediate layer, and described figure has along described longitudinal Y with horizontal The expanded range of X.Additionally, one of described first nonwoven layers or the second intermediate layer are in described graphics field Inside possessing opening, described opening extends along described longitudinal Y and horizontal X and at described figure at least On a part extend, i.e. thus the described of described figure is not set in this position at least partially The described layer having opening is covered.Described first nonwoven layers and described second intermediate layer do not has opening Another layer at least cover described figure described at least one of region in there is optical transmittance So that through described figure seen from another layer described described at least partially.

Term " opening " refers to the open zone limited out by one of the first nonwoven layers or the second intermediate layer Territory.The expanded range of opening Y along a substantially longitudinal and horizontal X.Because inevitably all material All there is the thickness ultimately depending on material self, therefore for the expanded range of open area, can Ignore layer thickness.The shape of opening can be any suitable profile.Preferably, shape take square, Rectangle, circle or triangle.

Term used herein " layer " or " web " are overall two-dimensional structures, and it can include One or more layers, and can be the laminate being made up of the layer of identical material or different materials.Therefore, Nonwoven web or nonwoven layers or nonwoven layers laminate layer can include multiple layer or nonwoven layers.

Perspectivity and the pleasing appearance for user is understood from outside in order to ensure pattern, Preferably outer layer 21 has 55% or higher, more preferably 65% or higher, most preferably 75% or higher light Learn absorbance.The perspectivity of pattern reduces along with the minimizing of optical transmittance.

Herein, optical transmittance is defined as total light transmittance, according to ASTM standard D1003, technique A (" Hazemeter (transmittance meter) ") measures, and uses CIE standard light source A in measurement, These standards are well known by persons skilled in the art.10 points optional to sample sheets measure to obtain Obtain meansigma methods.The total transmittance of adhesive-bonded fabric changes along with manufacturing process hardly and depends on the contrary In basic weight.

For obtaining high total transmittance, preferred basis weights is 40g/m²Or lower, more preferably 30g/m²Or it is lower. In view of flexibility, sense of touch and cost and sufficient intensity, as adhesive-bonded fabric preferred of outer layer Basic weight is 5-40g/m²And preferably 8-30g/m²。

Term " figure " may relate to but is not limited to image, design, pattern, symbol, labelling etc. Deng." figure " also includes occupying the one or more monochromatic patterns of cover member specific region and/or many Colored pattern.Term " colours " state that may refer to non-white.

As described above by retaining, at least some of figure is uncovered, it is meant that opening can expose figure A part for shape.The result of this technical characteristic is to be more easily visible figure outside cover member.Therefore, It is any one in the first nonwoven layers and the second intermediate layer by the longitudinal Y and horizontal X in edge in graphics field Opening is provided, leaves the most uncovered of figure, it is also possible to high-performance and attractive in appearance is provided Cover member.Because at least the first nonwoven layers or intermediate layer have an opening so that minimizing in graphics field Figure at least some of on the number of plies, this purpose can be realized.This part of figure is therefore by example Material layer as less in the other parts than thin-film material covers, and figure becomes more lively and fresh Bright.In other words, opening makes figure be exposed, therefore from the outside of cover member further Figure.Therefore, cover member can possess the figure more accurately limited, and its quality less depends on multiple Miscellaneous product structure.By the principle of the present invention, it is thus possible to meet and use as far as possible on figure The hope of few layer, the most only uses one layer, if use dry substance layer can provide high performance simultaneously Cover member.

Extra advantage be the figure on the impermeable thin layer of liquid seem now be more closely similar to absorb Figure in the other parts of property article.Therefore article entirety can express and less depend on complexity The block graphics more coordinated of product structure.

Additionally, when manufacturing disposable absorbent article, manufacturer is concerned about by the use of raw material the most very much Littleization is to reduce the carbon footprint of disposable absorbent article.Such as, using additional printed sheet can be to absorb Property article increase unnecessary cost and also to environmentally undesirable.With the prior art using extra printed sheet Scheme compare, embodiments of the invention are thus provided that less expensive and more responsible to environment skill Art scheme, because embodiments of the invention utilize existing cover member layer not require extra play.

Preferably, each layer is formed without any layer of cover graphics at least some of of opening.So, Figure is provided with protective layer and is less exposed to physical influence such as dust, is wrapped face-to-face when article During dress unintentionally with the contacting of other article, use during with the contacting of underwear, maybe may destroy figure Other physics tear of quality.Therefore, the lively and distinct characteristic of figure can keep the longer time.

Preferably, any layer that is formed without opening in each layer covers at least some of of opening.So, Covered by extra play and limit the edge of opening to guarantee that edge is not damaged by or does not scatters.

In one aspect of the invention, the second intermediate layer can include non-woven material.By using nonwoven Material layer, cover member becomes more soft.Additionally, feel as strengthening article dress material.

When as when not having another layer of opening, the first nonwoven layers or the second intermediate layer can have 5-40g/m², preferred 8-30g/m²Basic weight.Without intending to be bound to any theory, it is known that for non-woven fabrics Opacity or optical transmittance level be very sensitive to material basis weight.Such as, the nonwoven of height Layer opacity indicates covering of the high level to figure thereafter.Natural, it is also possible to other of material Performance can affect opacity, such as density of material, thickness and the degree of used coating and type (such as titanium dioxide, TiO2).Basic weight is at 5-40g/m²In the range of nonwoven layers provide figure visible Degree and good layer intensity aspect will have gratifying opacity.But, select basic weight above-mentioned Preferably scope 8-30g/m²The advantage of interior nonwoven layers is to maintain between opacity and the strength of materials Preferably balance.Acceptable intensity is conclusive, if because past when thin material is in cover member Toward being easily torn.This is due to the fact that cover member can be subject to when user wearing article Pulling force.If cover member is when pull-up diaper or pant-type disposable absorbent commodity, this is special It is correlated with.

In one aspect of the invention, opening along described longitudinal Y and described horizontal X whole described Extend on figure.It is the most lively and distinct that this allows for full graphics.When figure should universal time coordinated, Such as when assembly be provided with huge figure or jointly spread news to user or nursing staff some During minute pattern, this aspect of the invention may be critically important.

For the most adaptive and reason of comfort level, cover member can farther include health elastic component. Health elastic component puts between the first nonwoven layers and the second intermediate layer, thus cover member is by elastification. In such an embodiment, health elastic component can be configured so that in the area of opening and is not resulted in internal layer The area crumple being provided with figure.

Alternatively, the impermeable inner film layer of liquid can include elastic film material, thus outer housing group Part is by elastification.

In a still further aspect thereof, first and second layers is pantostrat.Herein, pantostrat is shape Become the layer of continuous web.Additionally, by removing the opening of any one in the first and second pantostrats Material part can obtain opening.By having pantostrat, cover member can be manufactured in an efficient way. Additionally, by removing material part from pantostrat, only existing manufacturing process may be made small tune The whole cover member that can manufacture the present invention.Manufacturer hence with they existing techniques not to work Skill order carries out large-scale technological improvement.Unique additional requirement is the part implementing to remove layer Manufacturing step.It is thus possible to avoid costliness and/or the fabrication scheme of complexity, and can continue with height Speed is used and assembles cover member and article self.

Preferably, the slotted material part of any a layer may be removed by cutting.By from any One layer cuts slotted material part, can obtain and have the smooth opening with consistent edge.

In another optional aspect of the present invention, described first nonwoven layers or described second intermediate layer are when setting The first material piece and the second material piece can be at least included when being equipped with described opening.In this aspect, described First material piece can be arranged to limit described opening betwixt extremely relative to described second material piece A few part.Thus may make full use of current material, because compared with a first aspect of the present invention, Removable less material or do not remove material when forming open area.Therefore with regard to material saving aspect Manufacturing process becomes more harmless to environment.When opening is configured to square or rectangular, the present invention's This aspect is particularly advantageous.Only get final product shape by arranging the moulding material sheet of two spaced apart rectangles Become the opening of square or rectangular shape.

Second intermediate layer is arranged to more impermeable closer to liquid than the first nonwoven layers through-thickness Z Inner film layer.In one aspect of the invention, in opening may be formed at the second intermediate layer.With Upper described technological merit is that opening and figure are covered by the first nonwoven layers.Additionally, when outside lamination During shade assembly, when thin layer and with the layer of opening closer to each other time may the most accurately coordinate out Mouthful with the position of figure.First nonwoven layers through-thickness Z is arranged in the outside in the second intermediate layer.? In the optional aspect of the present invention, opening can be formed in the first outer nonwoven layer.By making opening be in In first outer nonwoven layer, whole outer surfaces of cover member are provided with different surface textures, and it is certainly Body can increase the captivation of cover member or article.Additionally, by making opening be on outer layer, open Mouth can limit window around figure, and it has positive influences to figure with exchanging of user, such as User is easier to find figure, because it is surrounded by the distinct window i.e. edge of opening.

The invention still further relates to disposable absorbent article such as diaper, incontinence pant or sanitary towel.Disposably Absorbent commodity includes the cover member according to above-mentioned aspect any one.Article can have in validity period Between in the face of user inner surface and during use back to the outer surface of user.Additionally, article can Including forming the top flat of described inner surface, form the cover member of described outer surface and may select The absorbent cores being arranged between top flat and cover member.

Preferably, the impermeable inner film layer of the liquid of cover member is arranged to than the first nonwoven Layer and the second intermediate layer through-thickness Z are closer to absorbent cores.

Disposable absorbent article farther includes front portion, rear portion along shown in longitudinal Y and has two lower limbs The middle crotch portion of portion's opening.Described crotch along described longitudinal Y of article described anterior with described rear portion Between extend and be engaged in described anterior and described rear portion.Additionally, the exterior longitudinal edge portion of front portion Divide the longitudinal outer edges that can be connected to rear portion by longitudinal seam.

In certain embodiments, one of described first nonwoven layers or described second intermediate layer are further equipped with Other figure and other opening, described other opening exists along described longitudinal Y and described horizontal X In the region of described other figure extend and described other figure at least some of on prolong Stretch, and described first nonwoven layers and described second intermediate layer do not have another layer of other opening At least in the described at least one of region covering described other figure, there is optical transmittance, Thus through described other figure seen from another layer described described at least partially.

In one embodiment, the most described other figure and described other opening are positioned to It is positioned in the front surface of described article or the mutually same of rear surface.

In another embodiment, the most described other figure and described other opening location Become to be positioned in the front surface of described article or the most same of rear surface.

In certain embodiments, it is provided with between described second intermediate layer and described first nonwoven layers separately Outer nonwoven layers with cover described figure described at least partially；And described first nonwoven layers and institute State at least one in other nonwoven layers and do not extend over the described middle crotch portion of described article.

Accompanying drawing explanation

Hereinafter, will refer only to accompanying drawing and via example in detail cover member and disposable absorbent article are described in detail Embodiment, wherein:

Fig. 1 a and 1b illustrates the disposable absorbent article of one embodiment of the invention；

Fig. 2 a, 2b, 2c and 2d illustrate the suitable of the laminate layers of the cover member of the composition embodiment of the present invention Sequence；

Fig. 3 a, 3b and 3c illustrate the suitable of the laminate layers of the cover member of composition another embodiment of the present invention Sequence；

Fig. 4 a, 4b and 4c illustrate the suitable of the laminate layers of the cover member of composition another embodiment of the present invention Sequence；

Fig. 5 illustrates the continuously manufacturing being suitable to produce the embodiment of the present invention.

Detailed description of the invention

Cover member and the enforcement of disposable absorbent article of the present invention are described next, with reference to accompanying drawing Example.Same or similar feature by be presented with like reference characters and omit the repeated description to it with Exempt from burden.

Although having carried out described below to conventional urine pants, present invention may also be implemented in open urine The diaper that cloth is i.e. closed by fastening instrument.Additionally, the present invention also may be incorporated in incontinence protection and In sanitary towel." absorbent commodity " used herein is it is therefore intended that can absorb body fluid and be suitable to put Put at the genitals of user and/or anal any article.

Fig. 1 a of accompanying drawing illustrates the disposable absorbent article of the diaper form being grown up for baby or incontinence Embodiment.Diaper is intended to as trousers around wearer waist worn.

Absorbent commodity 10 includes the cover member 20 with anterior 150, described front portion institute in the accompanying drawings Show and embodiment is intended to during use on the abdominal part of wearer extend.After cover member also includes Portion 160, it is being intended on the back of wearer at user of cover member in the embodiment shown The part extended.Article have longitudinal y and the horizontal x in side.Absorbent commodity shown in Fig. 1 a also can enclose Symmetrical around longitudinal center axis L.Described article can be formed by folded laminar structure, such as Fig. 1 b and Shown in 1c.

Lateral outer most edge along anterior 150 and rear portion 160 forms longitudinal seam 180 and 180 ', thus Produce the pants-type diaper closed, i.e. there are the Individual Items of waist opening and a pair leg opening.Side joint Seam can be known in the art various ways formed, such as ultrasonic bonding, binding agent or a combination thereof. One or two side seams can be also can to open and can fasten again, and wherein they pass through machanical fastener Or adhesive tape is formed.In another embodiment, front and rear can be via a pair elastomeric side panels chip bonding.

The crotch between two parties 170 of the part being usually another shade assembly is that the in use intention of article is worn Cross the part that the crotch region between wearer lower limb extends.Absorbent cores is arranged in crotch 170 also alternatively And extend into front portion 150 and rear portion 160.

Article 10 also include interior top flat (Fig. 1 a is not shown) and cover member 20.Cover member 20 Will be described in detail below with top flat 30.But, top flat contacts with wearer skin when being and use diaper or extremely Few in the face of the lamella of skin.

Article also can possess waist and accommodate pocket and the leg opening of elastification, i.e. leg opening 220, lower limb Portion's opening 230, leg elastic 240 and leg elastic 250.But, due to this architectural feature It is to it is known in the art that no longer it to be repeated.

Article also can have so-called convex barrier layer flange (not shown) to provide the most anti-and letting out Leakage safety.These convex barrier layer flange instead of leg elastic in some examples.

In an alternative embodiment, as shown in Figure 1 b, absorbent commodity is so-called open diaper, its Side seams is not had between anterior 150 and rear portion 160.Machanical fastener or the fastening of adhesive tape form Device is arranged at the lateral margin at rear portion and is intended to be fastened along anterior outer surface.

In another alternative embodiment of open diaper structure, generally it is made up of elasticated materials The engageable front and rear of side panels is to form continuous print waist opening.Before each side panels is by being adjacent to The first side panels part in portion and the second side panels part being adjacent to rear portion are constituted.Each side panels can Having fastening instrument (such as hook or the mechanical fastening device of ring element form), it is intended to and front outsides Complementary mechanical clamp device (so-called landing area) cooperation, the cover member of front panel whole Outer surface can include non-woven material, and it is used as the front panel outer surface that can be attached to form landing area Ring material or the separate panels of ring material.Other example of machanical fastener be button and hole or button ring, Snap-fittings etc..Button can be anchored on side panels or absorbent commodity.Alternatively, can use viscous Mixture fastening instrument such as tab belt, the outer surface of the cover member of its middle front part be at least partially Belt can be bonded in its material.

In another embodiment, absorbent commodity is so-called belt diaper or incontinence garments, and it includes leading to A pair contrary band member extended laterally at rear portion it is connected at Chang Qi waist.These band portions are fitted For being wrapped in the section of garment wearer and by the first clamp device such as adhesive tape or machine Tool clamp device such as hook-loop securing member is secured together.Front portion may then pass through between the lower limb of wearer also And the outside of band member it is anchored on by arranging the second clamp device at fore waist.

The material constituting diaper 10 can be selected from any material being usually used in this product and can include From renewable resources and/or the material of the environmental sound of Biodegradable material.

Therefore, top flat i.e. liquid-permeable layer is made up of non-woven material aptly.Another it is contemplated that Material be perforated plastic.Especially, the material of top flat is preferably from showing characteristic example when the diaper Select in the material of drying property and flexibility.Even if further preferably top flat does not stimulate skin and has weight Multiple moistening remains on surface as dry softness and fabric.Top flat can be made up of non-woven material, and Can be made up of that bore a hole, hydrophobic non-woven material so that the surface remaining closest to user health is dry Dry, the hole of described non-woven material can give comfort as top flat fabric.This top flat is usual Known in the art, and those top flats well known by persons skilled in the art can be used with no as The particular restriction such as environment regulations.

Absorbent cores 40 be generally enclosed in the top flat of fluid permeable and the impermeable cover member of liquid it Between.Absorbent cores 40 can be along longitudinal x of disposable absorbent article 10 at front portion 150 and rear portion 160 Between extend and be engaged in anterior 150 and rear portion 160, as illustrated absorbability along Fig. 1 b cathetus II Shown in Fig. 1 c of the layer structure of article.But, absorbent cores 40 can only be engaged in anterior 150 and after One of portion 160, or the most only it is engaged in crotch 170.Aptly, at least crotch 170 is in front portion Extend between 150 and rear portion 160.But, if there is no crotch 170, then absorbent cores must be front Extend between portion 150 and rear portion 160 and be engaged in it.

Absorbent cores 40 can be the type of any routine.Common absorbing material is cellulose fluff pulp, cotton Ply of paper, high absorption polymer (so-called super-absorbent polymer or SAP), absorbent foam materials, absorption Non-woven material etc. and its mixture and/or require compression or the laminate not compressed according to the rules.Select For the suitable core of any special applications in the limit of power of those skilled in the art.

The size of absorbent cores and variable the turning to of absorptive capacity are suitable to different purposes such as baby or mistake Prohibit adult.Such as, absorbent core material can include absorbent cores and lower absorbent cores.Term used herein On " " relate to product be intended to be positioned closer to the part of user when deployed, the most herein The term D score used relate to product closer to it in the face of the part of garment surface.Additionally, lower suction The SAP receiving in-core has the major function of the liquid storage capacities increasing this layer, goes up in absorbent cores simultaneously The major function of SAP is if article are extruded by external force during use, prevents from absorbing in this layer Liquid rewetting.SAP in upper absorbent cores can be the class different from the SAP in lower absorbent cores Type or lower than the percentage ratio of SAP in lower absorbent cores.SAP can be applicable to the regional area of absorbent cores such as Enter area, liquid distribution area and/or liquid and retain area.Person of ordinary skill in the field will Understand, can be according to SAP in the absorbent properties of the absorbent commodity that will produce and type adjustment absorbent cores Concentration, a large amount of SAP such as can be used to obtain thin absorbent commodity, the most less amount can be used for Some hygienic article for the design of incontinence product in the daytime.

A preferred exemplary for the appropriate materials of absorbent cores be with about 30% can be from Germany The paper pulp that the SAP (trade name Hysorb M7125) that the BASF of Ludwigshafen buys mixes. The mixture of cellulose villus and SAP preferably has 0.08-0.13g/cm³Density.Absorbent cores also may be used Such as can be made up from the short fine oar being entirely free of chlorine that Stora Enso buys of the most chloride short fine oar.

In addition to absorbent cores, diaper may also comprise other layer such as the fluid acquisition of fast transportation body fluid Layer.Fluid acquisition layer has open loose structure and can quickly accommodate and store one provisionally Dosed fluid and transmit it to lower floor's absorbent cores further.This is critically important, especially for Be generally of now high-load SAP thin, compression absorbent commodity for.Current absorbability thing Product have higher absorbability certainly, but then they there is too low receiving speed sometimes and The big quantity of fluid discharged due to urine in can not being contained in the time interval of several seconds moment.Fluid acquisition layer Bond typically by carded and air penetration or acupuncture synthetic fibers such as polyester, polypropylene or its mix The high fluff material of what is called that compound produces.Appropriate materials for acquisition layer is to purchase from LIBELTEX The dewatering filling that the air penetration non-woven fabrics obtained is made, trade mark is DRY WEB T 23W.

Cover member

Cover member 20 extends along longitudinal Y and horizontal X as illustrated in figure 1 c, and has and be perpendicular to indulge The thickness direction Z extended to X and horizontal Y.Cover member 20 at least include the first nonwoven layers 50, Second intermediate layer 60 and the impermeable inner film layer of liquid 80.

In other words, the second intermediate layer 60 is stacked on the impermeable inner film layer of liquid 80, And the first nonwoven layers 50 is stacked on the second intermediate layer 60 as cover member and/or absorbent commodity Outer surface.

Cover member 20 also referred to as multi-part outer housing, matrix or egative film.Cover member is in use Covering absorbent cores 40 on clothes side in absorbent cores.Top flat 30 and cover member 20 are on the whole Planar having similar extension size, absorbent cores 40 has marginally smaller extension size simultaneously. Top flat 30 and cover member 20 are engaged with each other around the periphery of absorbent cores, thus absorbent cores be enclosed in by In the big envelope that top flat 30 and cover member 20 are formed.Top flat 30 and cover member 20 can be by existing The common any mode of technology is engaged with each other, such as ultrasonic bonding, thermal weld or gluing.

Cover member material can be ventilative so that steam still prevents liquid from absorbent cores effusion simultaneously Body passes through.The example of gas permeable material is many microporous polymer films, nothing from spunbond or meltblown layer Spin laminate, laminate from many microporous polymer films and non-woven material.Being positioned at of cover member 20 Region outside absorbent cores 40 can be formed with cover member by top flat, and top flat and cover member are bonded together To form layer structure.Alternatively, cover member be positioned at outside absorbent core region at least some of Made by providing another web material comfortable and breathability.

The impermeable thin layer of liquid

As it has been described above, cover member 20 includes the impermeable thin layer of liquid 80 such as thin plastic Such as polyethylene or polypropylene film.The impermeable thin layer of liquid should be at least in garment side faced by it Upper covering absorbent cores.

The impermeable thin layer of liquid may also be ventilative.This just provides higher relaxing for wearer Appropriateness, such as, reduce or completely avoid the accumulation of moisture/humidity.By by calcium carbonate (CaCO₃) Packing material is combined in microporous polyethylene thin film, can obtain the saturating of the impermeable thin layer of liquid Gas.The breathability of the impermeable thin layer of liquid can be with the water according to ASTM E96-00 technique D VTR (WVTR) quantifies.According to an embodiment, the impermeable thin film of liquid Layer has at least 500g/m in the 24h by the measurement of above-mentioned ASTM technique²Vapor transmission rate, At least 1500g/m in preferably 24h², or most preferably 24h at least 3000g/m²。

First nonwoven layers

Cover member 20 also includes the first nonwoven layers 50.Because cover member 20 exists when the diaper It is exposed to the outside of urine pants in crotch 170 and can contact with the skin of wearer, the first nonwoven layers 50 preferably there is fabric or fabric as outer surface in order to avoid feeling viscous when contacting with Plastic film surface Property.For reasons of which increasing urine pants or other trousers clothes and the similarity of normal underwear, fabric or knit As thing, outer surface is also preferred.

First nonwoven layers 50 is the most spunbond, melt-blown, spunlaced, spun lacing is entwined, wet-laying or The non-woven fabrics of carded bonding.The fiber of non-woven material can be natural (such as artificial silk or cellulose fiber Dimension) or artificial (such as polymer fiber such as polyolefine fiber, such as polyethylene or polypropylene fibre). First nonwoven layers 50 can be elastic or inelastic and will preferably include at least one nonwoven layers or by extremely Few nonwoven layers composition.First nonwoven layers 50 even can include being made up of two or more nonwoven layers Laminate, such as SMS (spunbond-melt blown-spunbond) composite.The first nothing according to the present invention Spin the part that layer 50 will form mean for the matrix of disposable pants type clothes.Aptly, the first nonwoven layers 50 have 5-40g/m²Between basic weight, preferably 8-30g/m².First nonwoven layers 50 should be aptly For air-impermeable.

Second intermediate layer

Cover member 20 also includes the second intermediate layer 60.Second intermediate layer 60 can be common by this area The most flexible web material composition, such as nonwoven material layer, plastic foil or identical by two or more Or the laminate that different materials sheet is constituted.

Second intermediate layer 60 preferred spunbonded, melt-blown, spunlaced, spun lacing is entwined, wet-laying or thick The non-woven fabrics of comb bonding.The fiber of non-woven material can be natural (such as artificial silk or cellulose fibre) Or artificial (such as polymer fiber such as polyolefine fiber, such as polyethylene or polypropylene fibre).Second Intermediate layer 60 can be elastic or inelastic and will preferably include at least one nonwoven layers or by least one Individual nonwoven layers forms.Second intermediate layer 60 even can include the layer being made up of two or more nonwoven layers Laminate, such as SMS (spunbond-melt blown-spunbond) composite.Second intermediate layer 60 will form mean for A part for the matrix of disposable pants type clothes.Aptly, the second intermediate layer 60 has 5-40g/m² Between basic weight, preferably 8-30g/m².Second intermediate layer 60 should be the most air-impermeable.

Second intermediate layer 60 includes plastic foil such as polyolefin film such as polyethylene or polypropylene alternatively. Second intermediate layer 60 even can include by the one or more nonwoven layers structures with one or more plastic foils The laminate become.

Nonwoven layers 50 and intermediate layer 60 are same or different materials.The size in intermediate layer 60 is substantially Unrelated with the size of nonwoven layers 50.Intermediate layer 60 can have the size identical with nonwoven layers 50, such as figure Shown in 1b.However, it is possible to intermediate layer 60 has along vertical and horizontal more than or less than nonwoven layers 50 Extend size.The lap of intermediate layer 60 and nonwoven layers 50 can be selected rightly by those skilled in the art Select.Preferably, during the size in intermediate layer 60 and the lap in nonwoven layers 50 and intermediate layer 60 make Interbed 60 and nonwoven layers 50 are in the whole area residing for the wherein health elastic component 190 of nonwoven layers 50 Overlapping.Nonwoven layers 50 and intermediate layer 60 can the most such as thermal welds, ultrasonic bonding Or be adhesively fixed.Bonding is most preferred.Nonwoven layers 50 and intermediate layer 60 are crossed over aptly Substantially its whole overlapping region is fixed to one another.

Nonwoven layers 50 and intermediate layer 60 thin film impermeable with liquid 80 are laminated together.If can Dry mode is laminated, such as thermal weld, ultrasonic bonding or bonding.

Figure

The impermeable internal membrane of liquid 80 is further provided with at least one figure 90.Figure 90 There is the extension size along longitudinal Y and horizontal X.Figure 90 can be located at rear portion 160, anterior 150, Between two parties in any one in crotch 170 or be positioned at any combination in part 150,160 and 170 On.In one aspect of the invention, figure can extend partially into another part from one.Figure 90 can include any desired design, and can be combined one or more signs such as letter, numeral, Symbol or a combination thereof.Figure can be set and be preferably printed at the second intermediate layer 60 and be stacked thereon On the outside of the impermeable inner film layer of liquid 80.It is presently contemplated that embodiment include that those relate to The polyethylene film of preprinted, the use of adhesive-bonded fabric of preprinted.Alternatively, by currently preferably The label being made up of polyethylene, adhesive-bonded fabric or tissue material or patch provide figure, figure preprinted On label or patch.But, figure can become by thinkable arbitrary image with those skilled in the art Shape technique is arranged on layer, label or patch, and should include such as embossing or fringing and printing Figure.

In Fig. 2 a and 3a, schematically disclose liquid-impermeable material such as polyethylene and make The part of thin film 80.In the example of these figures, this layer is printed by suitable printing technology One group of printing zone 90 of brush or picture.Colored printing on the impermeable thin film of liquid 80 can be led to Cross such as hectographic printing or photogravure to carry out.If suitable, other printing any can be used Technology.Hectographic printing is that object the most to be printed adheres to impression cylinder operating on plate cylinder simultaneously And experience the technology of stretching the most hardly.Therefore, it is suitable at material such as liquid that is thin and that can extend The impermeable thin film of body 80 is enameled printing.In Fig. 2 a and 3a, figure 90 mesh point table Show, but as it has been described above, other object or shape the most also can replace a little unrestricted.

The structure in thin layer, nonwoven layers and intermediate layer

In order to allow user clearly distinguish figure 90, one of nonwoven layers 50 and intermediate layer 60 are at figure It is provided with opening in 90 regions.

Fig. 2 a, 2b illustrate the configuration of the first exemplary layer that the present invention is relevant with 2c.

In fig. 2 a, thin layer 80 is shown as having two figures 90, and one is positioned at and will form medicated clothing Will become in anterior part when wearing, what another was positioned at medicated clothing will become rear portion when wearing Part on.The quantity of figure 90 and arranging is entirely exemplary, can anterior, rear portion or its He only arranges single figure in place.Alternatively, two or more figure can be set, such as two Individual figure is positioned on front portion, one be positioned on rear portion, or two be positioned on rear portion, two be positioned at before In portion, this depends on information to be passed.

In figure 2b, it is shown that with corresponding in the opening 70 of figure 90 position on thin layer 80 Interbed 60.In various embodiments, figure can be more than or less than opening；Here, each opening 70 Size be set as when layer 60 and 80 superposition exposing whole corresponding figure 90.Certainly, opening can By accurately sizing thus expose figure；Or opening can be slightly larger than or be slightly lower than figure, depend on In whether being intended to be best seen pattern edge, and the position precision of available laminating technology.

Here, intermediate layer 60 is about identical with the height of thin layer 80 but has hourglass shape, its limit Make to suitably form two wider areas of belt and between wider area, suitably form cooperation and using Part between person's lower limb about with the narrower area of thin layer 80 same widths.Therefore, more narrow portion and Two wider areas around horizontal axis to form diaper or the like time define for lower limb Hole.

In figure 2 c, layer 60 and 80 superposition is to expose figure 90 by corresponding opening 70.

In figure 2d, nonwoven layers 50 is centrally positioned on layer 60, and nonwoven layers 50 has sufficiently high Optical transmittance thus when from external observation i.e. towards thin layer 80 through intermediate layer 60 in opening wear Cross and can distinguish figure by described layer when nonwoven layers 50 is seen.

In Fig. 2 a-2d, opening 70 is generally square, but think be only for exemplary.Opening Can be made up of any shape, this depends on the shape of figure and to the structural requirement of article manufactured.

Alternatively, opening can be formed by the configuration of discontinuous material piece, such as Fig. 3 a, 3b and 3c Illustrate.

In fig. 3 a, it is shown that thin layer 80 be similar to Fig. 2 a's.

In fig 3b, two material piece 110 and 120 position to limit overlappingly with thin layer 80 The opening 70 that figure 90 exposes through it.Two other material piece relative to the most visible separately One optional pattern positions similarly.Four material piece collectively form intermediate layer 60.Herein, sheet material is Square, but according to design requirement, rectangle or other irregularly shaped also expection in.

In figure 3 c, material piece 100 is superimposed upon in material piece 110 and 120, and similar sheet material It is superimposed upon and collectively forms in other two material piece in intermediate layer 60 with material piece 110 and 120.So After superposition, material piece covers opening 70 and figure 90.(material piece 100 is it to each material piece of superposition One of) collectively form nonwoven layers 50.

In the embodiment of Fig. 3 a-3c, material piece 110 and 120 is generally square and does not extends The total length of thin layer 80, material piece 100 is highly suitable with material piece 110 and 120 and width simultaneously Be enough to cover the rectangle of both material piece 110 and 120, this configuration makes when along horizontal axis It is prone to limit leg holes without cutting seen vertically boundary curve in figure 2d, with regard to materials'use and system Make for larger sized article that this is favourable.However, it is anticipated that other shape, and pass through Assembling before 100,110 and 120 or period suitably shapes sheet material and can provide the curved of leg holes veritably Curl edge.

Alternatively, nonwoven layers 50 can be also that the material piece with figure and composition intermediate layer 60 partly overlaps Or its single material piece is completely covered.

In Fig. 2 a-2d and 3a-3c, by being formed in successive layers or by material piece 110,120 Layout, opening 70 is limited in intermediate layer 60.But, it is also contemplated that its split shed shape comparably Become the configuration in nonwoven layers 50；Intermediate layer 60 is then the intrazonal pantostrat of figure, has enough High optical transmittance thus when from external observation, may pass through described layer distinguish figure.But it is the most excellent Choosing is formation opening in intermediate layer 60, because can be protected the limit of opening subsequently by nonwoven layers 50 Edge is not shipped damage.

Another embodiment shown in Fig. 4 a-4c be also it is presently contemplated that.

Fig. 4 a is shown similar to the thin layer 80 shown in Fig. 3 a, but only has (in this example) and be Its figure 90 provided, the most such as, be arranged on the front portion of article.

Fig. 4 b illustrates the intermediate layer 60 laminated together with thin layer 80, and intermediate layer 90 has and thin film Width that layer 80 is similar and length dimensions, and have when layer 80 and 60 superposition in location and size The opening 70 corresponding with figure 90.

Fig. 4 c illustrates that the structure of Fig. 4 b is additionally provided with and is formed as being rectangle and similar two materials of size The nonwoven layers 55 of tablet, a material piece is arranged to cover opening 70, and another is arranged on about water The position of flat axisymmetrical, has interval therebetween.The material piece of cambium layer 55 is wider than thin layer 80, Thus by the configuration around horizontal axis (being similar to Fig. 3 a-3c) Fig. 4 c, and make cambium layer The vertical edge of the material piece of 55 to together, defines waist and leg hole.

But, Fig. 4 c also illustrates that by the size similar with the sheet material of cambium layer 55 and the material piece of configuration Make and superposition another nonwoven layers 50 thereon.In the configuration, another nonwoven layers 50 described forms clothing The egative film of clothes and any elastic component used and/or glue can be made in structure to isolate with garment surface.? In this embodiment, need lesser amount of non-woven material to manufacture clothes because not being specially required for Cut out the section of user leg hole to be formed.In the present embodiment, processing cost thus reduces.Layer 50 with Layer 55 combination preferably have the light transmittance suitable with the layer 50 of the embodiment of Fig. 2 a-2d and 3a-3c from And figure can be clearly illustrated.

Certainly, the feature of previous embodiment can be combined, and the layer 55 of such as Fig. 4 c can be with example Mode as identical in the layer 50 of Fig. 2 d is formed.

In some configures, opening can whole be formed in the border of the layer limiting opening；Join at other In putting, opening is arranged on the edge part office of layer.For structural intergrity, the former is preferred；Just Preferred the latter for the simplicity manufactured.

Light transmittance

Even if in order in transmission layer 50 and 60, any one also ensures that the definition of figure 90, not only figure 90 self must sufficiently clear, and layer 50 and 60 must have sufficiently high light transmittance.By entering The ratio of the light intensity penetrating the light intensity on object and transmission light represents light transmittance.

Increase the absorbance of layer 50 and 60 by reducing its basic weight, but too small basic weight often cannot The cover member 20 of gratifying quality or sensation is provided.In order to ensure the definition of figure 90 with outer Well balanced between the quality of shade assembly 20, intensity and sensation, is preferably stacked in liquid impermeable Inner film layer 80 on layer there is 5-40g/m², preferred 8-30g/m²Total basic weight.Therefore, actual On can obtain 55% or higher, preferably 65% or higher, most preferably 75% or higher favourable optical lens Penetrate rate, and not in quality or sensuously there is compromise.

Although layer 50 and 60 preferred white or the most shallow tone, this one or two layer can be colored, As long as not weakening definition or the outward appearance of disposable absorbent article 10 of figure 90.

Waist elastic

In order to ensure the leakage protection of height, absorbent commodity is preferably designed to so that absorbent commodity Mode that is loose or that slip will not be become from user health be snugly fitted to the health of user. Cover member 20 such as can possess the some elasticas 195 being arranged in parallel to waist opening.Elastica Preferably it is also configured to as previously mentioned towards leg opening 240 and 250.So, absorbent commodity is arranged There is the more comfortable accessory that can well reveal protection.

Therefore, in cover member 20, the first nonwoven layers 50 and the second intermediate layer 60 can be from liquid Leading edge and the trailing edge of impermeable inner film layer 80 extend outward, and extension can be rolled over Return on top flat 30 side.The folded portion energy portion in front and rear waist opening part of layer 50 and 60 Divide ground or overlapping with absorbent cores 4 fully.Referring specifically to Fig. 1 a, it is collectively forming so-called waist elastic Multiple elastomeric elements 195 on the width of cover member 20, be fixedly disposed in layer with its tension Between 50 and the folded portion of 60, thus when they loosen in season, they can shrink and thus at belt Non-woven material is inside made to assemble.Elastomeric element 195 is configured so that the side when front portion 150 and rear portion When the side of 160 is respectively adjoined together, its end can be joined.So open at the waist around diaper 10 The continuous loop of gathering is generally defined near Kou.

Waist elastic 195 can be by by one or more elongated shape elastomeric element elastifications substantially The form of the belt that nonelastic nonwoven layer is formed.Described elastomeric element is such as arranged between layers Elastic line or belt.Described layer can be by the edge part of the first nonwoven layers 50 of monolayer material such as folding onto itself Divide and formed or can be made up of a part for independent material the such as first nonwoven layers 50 and other material layer.

The embodiment of the disposable urine trousers according to the present invention need not have the waist elasticity of configuration shown in Fig. 1 a Part.Waist elastic can be omitted entirely and can only configure on anterior one of 150 and rear portion 160. Waist elastic can extend along the only a part of waist opening, such as along front waist edge and/or back lumbar part The central section at edge extends.

Cover member 20 is preferably nonelastic in crotch region.

Health elastic component

Cover member may also include health elastic component 190.Health elastic component puts on the first nonwoven layers 50 And between the second intermediate layer 60, or it is integrated into one of the first nonwoven layers and the second intermediate layer and such as extends Through the flexible member of described layer, thus cover member 20 is by elastification.

As shown in Figure 1a, health elastic component 190 is shown between lateral margin 180 and 180' and extends across Front portion 150 and multiple elongated shape elastomeric elements at rear portion 160.Elastomeric element can be part 150 He The most spaced apart and the elastic webbing line or belt that can be applied in identical or different tension force on 160.

But health elastic component is dispensable, and can be omitted or be suitable for other of specific purpose Mode designs.Therefore, health elastic component can by be applied only to front and rear body 150 and 160 in the lump And elasticity of flexure element can be included or be made up of elasticity of flexure element.Health elastic component can be in absorbent cores Integral part extends.But, in order to avoid absorbing when the cover member of absorbent commodity is by elastification Core gauffer, it will usually make elastica or elastomeric material only extend on the top of absorbent commodity.Cause This elastica the most only extends to absorbent cores from waist opening, rather than spreads all over absorbent cores.

Generally, health elastic component will be laterally to extrude this layer to the effect of lower floor, and this causes again this layer Such as become deformation due to wrinkling.But, if the figure 90 of the impermeable thin layer of liquid 80 The area being printed thereon becomes wrinkling, then figure self will become wrinkling, and figure 90 is visible Degree and definition will diminish.Therefore, in the embodiment with health elastic component, preferably health is elastic Part is at least constructed such that to be not resulted in the impermeable thin layer of liquid 80 in the area of opening 70 Through seen from opening and figure 90 prints area thereon and becomes wrinkling.

Utilizing some technology known in the art to pass through only cutting elastic component material such as elastica can be real Now this purpose, thus provide the no longer elastic of laminate thus the region of in use not crumple.Example As, may use and be similar to technology disclosed in JP-A-2002-253605.Alternatively, such as by subtracting In few opening area, the tension force of elastica is to similar effect, can be passivated the elasticity of elastomeric material.

When using health elastic component in embodiments of the present invention, particularly when do not cut elastic component then Preferably selecting elastomeric material such as elastica (elastica can buied) with trade mark Lycra, it is using In sufficiently thin and transparent thus in opening area, at least do not cover figure.

Elastic film material

In optional example, cover member 20 is provided with elastic film material (not shown) so that outer housing group Part is by elastification.Therefore, cover member 20 includes elastic film material layer the 80, first non-woven material 50 With the second non-woven material 60.Elastic film material is that liquid is impermeable, and is arranged to along thickness Direction Z than at least the first and second nonwoven layers 50,60 closer to absorbent cores 40.Liquid is impermeable Inner elastic layer 80 be then further provided with figure 90.Figure 90 has along longitudinal Y with horizontal The extension size of X.Any one in nonwoven layers 50,60 is formed along longitudinal Y and the opening of horizontal X 70, thus described opening 70 figure 90 at least some of on extend.

Alternatively, cover member outside absorbent core region at least some of by provide comfort level and Other web material of breathability is made.One example of such pants type absorbent commodity is such as Shown in WO2005/122984, wherein the part in the covering front and rear portion of cover member includes elastic layer The elastic material web material of laminate form.

As it has been described above, the major part at front portion 150 and rear portion 160 is made up of inelastic materials alternatively And elasticized side plate can be arranged on the sidepiece of absorbent commodity in the region in bridge joint front and rear portion In.

In conjunction with the above, it should be noted that health elastic component disclosed above and one or more elastic layer Can be provided together.In this case, in the case of health elastic component is configured to be in stretching, Once stretch and discharge from elastic layer, then discharge elastic layer along with stretching further from health elastic component Can tend to wrinkling.If the thin film that figure is arranged on (even elasticity) otherwise will tend to meeting with This phenomenon, then should preferably be passivated by health elastic component, to avoid in the above described manner in figure area Wrinkling pattern definition is made to reduce.

Touch upon and there is the health elastic component integrated with nonwoven layers 50 or intermediate layer 60, or work as these layers it One or both are when self being elasticity, this is also genuine.

Exemplary manufacturing mode

Fig. 5 illustrates the exemplary manufacturing mode of the embodiment of the present invention.

In Figure 5, the thin film web 80 with the figure 90 being arranged at it in advance is advanced from left to right. Meanwhile, intermediate materials web 60 forms opening via by excision blank 75 above thin film web 80 The cutting knife C of 70 is directed to cover film web 80, so that figure 90 aligns with opening 70.Thin film Web 80 and intermediate materials 60 further synchronization line subsequently proceeds to right side, at this another non-woven material material 50 are directed to cover this laminate above the layer 80 and 60 of lamination.Respectively by thin film 80, in Between three webs constituting of material 60 and non-woven material 50 subsequently further synchronization line proceed to right side, The part 220 and 230 of this laminate is removed to limit belt and crotch area, the most finally limits Leg hole.

It should be apparent to those skilled in the art that and above-mentioned technique can be applicable to the upper of the offer present invention State any embodiment.Certainly, above-described embodiment is only used as example and is provided, and implements the teachings of the present invention Time require according to specific products, material availability and local preferred practice carry out suitable rewriting all at this In the limit of power of skilled person.All these improvement within the scope of the appended claims, quilt It is considered to be formed the part of the present invention.

Claims

1. the cover member (20) for disposable absorbent article, described cover member (20) Extend along longitudinally (Y) and horizontal (X) and have be perpendicular to described longitudinal direction (Y) and described laterally (X) thickness direction (Z) extended, described cover member (20) at least include the first nonwoven layers (50), Second intermediate layer (60) and the impermeable inner film layer of liquid (80), these layers are along described thickness Direction (Z) layer in this order is put, and the impermeable inner film layer of described liquid (80) is faced by it The side of described second intermediate layer (60) is provided with at least one figure (90), described figure (90) Have along described longitudinal direction (Y) and the expanded range of horizontal (X), it is characterised in that: described first nothing Spin any one in layer (50) or the second intermediate layer (60) and possess at least one opening (70), described Opening extends and in institute in described figure (90) region along described longitudinal direction (Y) and horizontal (X) State figure (90) at least some of on extend, and in described first nonwoven layers and described second Interbed does not have another layer of opening at least in the described at least one of region covering described figure Inside there is optical transmittance so that through described at least of described figure seen from another layer described Point.

Cover member the most according to claim 1 (20), it is characterised in that: in the middle of described second Layer (60) includes non-woven material.

Cover member the most according to claim 1 (70), it is characterised in that: described first nonwoven Layer or described second intermediate layer are having as when not having described another layer of described opening (70) 5-40g/m²Basic weight.

Cover member the most according to claim 2 (70), it is characterised in that: described first nonwoven Layer or described second intermediate layer are having as when not having described another layer of described opening (70) 5-40g/m²Basic weight.

Cover member the most according to claim 3 (70), it is characterised in that: described first nonwoven Layer or described second intermediate layer are having as when not having described another layer of described opening (70) 8-30g/m²Basic weight.

Cover member the most according to claim 4 (70), it is characterised in that: described first nonwoven Layer or described second intermediate layer are having as when not having described another layer of described opening (70) 8-30g/m²Basic weight.

7. according to the cover member (20) described in any one in claim 1-6, it is characterised in that: Described opening (70) along described longitudinal direction (Y) and described laterally (X) whole described figure (90) On extend.

8. according to the cover member (20) described in any one in claim 1-6, it is characterised in that: Described cover member (20) farther includes health elastic component (190), described health elastic component (190) It is applied between described first nonwoven layers (50) and described second intermediate layer (60), or is integrated in institute State in one of the first nonwoven layers (50) and described second intermediate layer, thus described cover member (20) By elastification；And described health elastic component (190) is constructed in the area of described opening (70) Become to make to be not resulted in the area crumple with described figure (90) of described internal layer (80).

9. according to the cover member (20) described in any one in claim 1-6, it is characterised in that: The impermeable inner film layer of described liquid (80) includes elastic film material (82), thus described outside Shade assembly (20) is by elastification.

10. according to the cover member (20) described in any one in claim 1-6, it is characterised in that: Described first nonwoven layers and described second intermediate layer (50,60) are pantostrat and described opening (70) The removal part (75) of the material being provided by the layer of opening (70) is formed.

11. according to the cover member (20) described in any one in aforementioned claim 1-6, its feature It is: described first nonwoven layers or described second intermediate layer (50,60) are when being provided with described opening (70) Time at least include the first material piece (110) and the second material piece (120), wherein said first material piece (110) it is arranged to limit described opening (70) betwixt relative to described second material piece (120) At least some of.

12. according to the cover member described in any one in claim 1-6, it is characterised in that: described In first nonwoven layers (50) or described second intermediate layer (60) any one be also equipped with other figure and Other opening, described other opening along described longitudinal direction (Y) and described laterally (X) described separately In the region of outer figure extend and described other figure at least some of on extend, and And another layer without described other opening in described first nonwoven layers and described second intermediate layer is extremely Few have optical transmittance in the described at least one of region covering described other figure, from And through described other figure seen from another layer described described at least partially.

13. disposable absorbent articles according to claim 12, it is characterised in that: work as wearing Figure and described other opening that Shi Suoshu is other are positioned at the front surface of described article or rear table Face mutually same on.

14. disposable absorbent articles according to claim 12, it is characterised in that: work as wearing Figure and described other opening that Shi Suoshu is other are positioned at the front surface of described article or rear table Face the most same on.

15. disposable absorbent articles according to claim 12 (55), it is characterised in that: Between described second intermediate layer (60) and described first nonwoven layers (50), there is other nonwoven layers location (55) with cover described figure described at least partially；And described first nonwoven layers (50) and At least one in described other nonwoven layers (55) does not extend over the described middle crotch of described article Portion (170).

16. according to the disposable absorbent article (55) described in claim 13 or 14, and its feature exists In: between described second intermediate layer (60) and described first nonwoven layers (50), location has other Nonwoven layers (55) with cover described figure described at least partially；And described first nonwoven layers (50) With the described centre that at least one in described other nonwoven layers (55) does not extend over described article Crotch (170).

17. 1 kinds of disposable absorbent articles (10), including according to aforementioned claim any one institute The cover member (20) stated, it is characterised in that: described article (10) have during use in the face of making The inner surface (12) of user, during use back to the outer surface (13) of user, described article (10) The top flat (30) also including being formed described inner surface, the described cover member forming described outer surface, And the selectable absorbent cores (40) being arranged between described top flat and described cover member.

18. disposable absorbent articles according to claim 17 (10), it is characterised in that institute Stating disposable absorbent article is diaper, incontinence pant or sanitary towel.

19. disposable absorbent articles according to claim 17 (10), it is characterised in that institute State the impermeable inner film layer of liquid (80) and be configured to along described thickness direction (Z) that ratio is at least Described first nonwoven layers (50) and the second intermediate layer (60) are closer to described absorbent cores (40).

20. according to the disposable absorbent article (10) according to any one of claim 17-19, its Be characterised by: when seeing along longitudinally (Y), described article (10) farther include front portion (150), Rear portion (160) and there is the middle crotch portion (170) of two leg openings (220,230), described crotch Portion (170) prolongs between described front portion (150) and described rear portion (160) along described longitudinal direction (Y) Stretch and be engaged in described anterior and described rear portion, the exterior longitudinal edge of wherein said front portion (150) Part is connected to the exterior longitudinal edge portion at described rear portion (160) by longitudinal seam (180,180') Point.

21. according to the disposable absorbent article described in any one in claim 17-19, its feature It is: in described first nonwoven layers (50) or described second intermediate layer (60), any one is also equipped with separately Outer figure and other opening, described other opening is along described longitudinal direction (Y) and described laterally (X) In the region of described other figure extend and described other figure at least some of on Extend, and described first nonwoven layers and described second intermediate layer do not have described other opening Another layer at least has optical lens in the described at least one of region covering described other figure Penetrate rate, thus through described other figure seen from another layer described described at least partially.

22. disposable absorbent articles according to claim 21, it is characterised in that: work as wearing Figure and described other opening that Shi Suoshu is other are positioned at the front surface of described article or rear table Face mutually same on.

23. disposable absorbent articles according to claim 21, it is characterised in that: work as wearing Figure and described other opening that Shi Suoshu is other are positioned at the front surface of described article or rear table Face the most same on.

24. according to the disposable absorbent article (55) described in claim 17-19 any one, its It is characterised by: positioning between described second intermediate layer (60) and described first nonwoven layers (50) has Other nonwoven layers (55) with cover described figure described at least partially；And described first nothing At least one spun in layer (50) and described other nonwoven layers (55) does not extend over described article Described middle crotch portion (170).