CN101324030B - Novel three-dimensional elastic composite material and preparation thereof - Google Patents
Novel three-dimensional elastic composite material and preparation thereof Download PDFInfo
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- CN101324030B CN101324030B CN2008100379722A CN200810037972A CN101324030B CN 101324030 B CN101324030 B CN 101324030B CN 2008100379722 A CN2008100379722 A CN 2008100379722A CN 200810037972 A CN200810037972 A CN 200810037972A CN 101324030 B CN101324030 B CN 101324030B
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- elastic composite
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Abstract
The invention relates to a novel three-dimensional elastic composite material and a preparation method thereof. The novel three-dimensional elastic composite material comprises following components: one layer of a composite ventilating film of polyfluortetraethylene and polyurethane, or a mesh polyurethane material or an elastic polyurethane film body (6), and at least one layer of a non-woven fabric (4) that is produced by the PE/PP bi-component spun-bonding process, the two components are synthesized in interval mode; the preparation method of the novel three-dimensional elastic composite material comprises following steps: (1) the non-woven fabric that is produced by the PE/PP bi-component spun-bonding process is fed, and the elastic body is stretched lengthways or transversely according to the proposition between 1 : 1.25 to1 : 8; (2) the non-woven fabric that is produced by the PE/PP bi-component spun-bonding process and the stretched elastic body are synthesized in the interval mode through hot rolling adhesion, chemical adhesion or ultrasonic adhesion; (3) the produced multilayer elastic composite material is slacked, and then coiled and shaped by a coiling device (11). The elastic composite material has good comfortable touch feeling and various appearances, and can be widely used in dresses, ornamental packages and medical and health materials, etc.
Description
Technical field
The invention belongs to elastic composite and preparation field, particularly relate to a kind of novel three-dimensional elastic composite material and preparation method thereof.
Background technology
Elastic textile material has purposes widely, and people explore new elastomeric material diligently, to satisfy the real needs of different occasions.
In patent CN1429149, a kind of compound of three dimensional highly elastic film/non-woven is disclosed, it comprises impenetrable liquid and air sandwich layer and first and second bonding course.This compound forms by the core layer of stack impenetrable liquid and air between two-layer fixed supatex fabric, described layer point is bonding or weld, form one deck non-flexible film at each pad place, can predraft the compound of welding, make film rupture, form the hole thus, make compound ventilative.
Patent CN1273550 relates to a kind of soft breathable elastic laminate that is made of elastic film and spunbond net, in impermeable steam or the permeable elastic film of steam, added a kind of fluoropolymer resin filler, the particle diameter of this filler is suitable for forming micropore, when film is stretched along at least two methods, just form micropore.
Related to extrusion bonded nonwoven material elastic film laminates among the patent CN1431953, its preparation be the film extrusion with one deck elastic layer at least of the soft condition that is in heat to the non-woven tablet of one deck at least, film is directly bonded to above the non-woven tablet layer at least a portion scope of lamination band substantially continuously.
A kind of non-woven fibrous base-material of cumulative stretching and the elastic laminate sheet material of elastomeric film are disclosed at patent CN1128967, its manufacture method be extrude or bonding non-woven fibrous base-material to the laminated method of elastomeric film, laminated between its non-woven fibrous base material and the elastomeric film is continuous.
A kind of method of making corrugated stretch laminate has been described among the patent CN101039642, it is online that elastic component is that the elastic composition with fluid or molten condition is administered to carrier fibre, and carrier joined to form in the substrate, the formation of fiber web ripple is the engagement by mechanical between cog.
Different with patent of invention in the past is, the invention provides a kind of novel three-dimensional elastic composite material and preparation method thereof, made full use of the flexibility and the direction opposite sex of top layer non-weaving cloth, made the three-dimensional elastic composite material that makes have better contact comfort.
Summary of the invention
Technical problem to be solved by this invention provides a kind of novel three-dimensional elastic composite material and preparation method thereof.This elastic composite has better contact comfort, and outward appearance is rich and varied, and the preparation method is simple.
A kind of novel three-dimensional elastic composite material of the present invention, its composition comprises: compound breathable films of one deck polytetrafluoroethylene (PTFE) and polyurethane or the netted material of polyurethane or polyurethane film elastomer (6) and one deck PE/PP bicomponent spunbond nonwoven layer (4) at least, two-layer or three layers of elastic composite, both are compound in interval property mode, as Fig. 2, Fig. 3 and shown in Figure 4.
Described three layers of elastic composite are by one deck PE/PP bicomponent spunbond nonwoven layer, one deck elastomer, and one deck PE/PP bicomponent spunbond nonwoven layer is made.
Described elastomer has better elastic elongation performance and elastic recovery, and thickness is no more than 3mm.
The fibre structure of described spun-bond process nonwoven layer is a long filament, and the composition structure of PE and PP is core-skin type, parallel type, tangerine lobe type or fabric of island-in-sea type in the long filament.
The grammes per square metre scope of described spunbonded nonwoven layer of cloth is 5～50g/m
2, PE and PP are the conventional raw materials of spun-bond process non-weaving cloth, compare with PE/PET bicomponent spunbond method non-weaving cloth with the PP one pack system spun-bond process non-weaving cloth with grammes per square metre, slim PE/PP bicomponent spunbond method non-weaving cloth obviously has better flexibility.
The preparation method of novel three-dimensional elastic composite material of the present invention comprises the steps:
(1) feeding 5～50g/m
2PE/PP bicomponent spunbond method non-weaving cloth, with polytetrafluoroethylene (PTFE) and the compound breathable films of polyurethane or the netted material of polyurethane or polyurethane film elastomer in 1: 1.25～1: 8 ratio in vertical or horizontal stretching;
(2) bonding by hot calendering bonding, chemical adhesion or ultrasonic wave, PE/PP bicomponent spunbond method non-weaving cloth and the elastomer that is stretched is compound with interval mode, make compound material along the non-adhesion area that continuous perforation is arranged on the long filament lapping direction of PE/PP bicomponent spunbond method non-weaving cloth;
(3) lax compounded multilayer elastic composite is by coiler device (11) coiling and molding.
The long filament lapping direction of described elastomeric draw direction of step (1) and PE/PP bicomponent spunbond method non-weaving cloth is perpendicular.
In the described chemical adhesion set composite of step (2), the colored type of bounding point is selected spaced in length and breadth round dot.
The described hot calendering bonding set composite of step (2) is a pair of hot roll, and rolling of topping roll a little is horizontal stripe, and bottom roll is a smooth roll.
The described hot calendering bonding set composite of step (2) is a pair of hot roll, and rolling of top and bottom rolls is vertical stripe all a little, and rolls a little corresponding.
In spinning equipment (1), make PE/PP bicomponent spunbond method non-weaving cloth (4) according to conventional or novel bicomponent spunbond method non-weaving cloth production method, concrete grammar is with reference to " based on slit drawing-off PE/PP skin-core structure bicomponent spunbond nonwoven process and the performance study " of Yang Guang, " the bicomponent spunbond method non-weaving cloth " of Zou Ronghua etc.The generative process of PE/PP bicomponent spunbond non-weaving cloth also can directly be substituted by a unwinding equipment of supplying package PE/PP bicomponent spunbond non-weaving cloth, directly supplies with.
As the technological process of production of Fig. 1 for the double-deck elastic composite of the present invention.The elastomer (6) that unwinding device (5) unwinding is got off at first passes through guide roller (7), and the effect of guide roller (7) is that the angle between elastomer (6) and the PE/PP bicomponent spunbond non-weaving cloth is diminished, thereby is more conducive to compound.Then, the stretched equipment of elastomer (6) (8) is stretched, the long filament lapping direction of draw direction and PE/PP bicomponent spunbond method non-weaving cloth is perpendicular, promptly, when PE/PP bicomponent spunbond method non-weaving cloth is vertically (along the machine outbound course) lapping, elastomer is then by cross directional stretch, and stretcher this moment (8) is a kind of expanding device; When PE/PP bicomponent spunbond method non-weaving cloth is laterally (perpendicular to the machine outbound course) lapping, elastomer is then by longitudinal stretching, and stretcher this moment (8) is a kind of draft apparatus.The reason of doing like this is, PE/PP bicomponent spunbond non-weaving cloth is on perpendicular to long filament lapping direction, has the best softness, the easiest formation fold, when elastomeric draw direction, when the elasticity direction of the multilayer elastic composite of promptly finally making and the lapping direction of spun-bonded non-woven are perpendicular, can make full use of the softness of PE/PP bicomponent spunbond non-weaving cloth, form plentiful fold, and make the multilayer elastic composite that makes have higher elastic performance.Then, it is compound that PE/PP bicomponent spunbond method non-weaving cloth (4) and the elastomer that is stretched are carried out interval property, and the complex method of set composite (9) can be that hot calendering bonding, chemical adhesion or ultrasonic wave are bonding.The pattern of bounding point is selected rich and varied, but will make compound material along the non-adhesion area that continuous perforation is arranged on the long filament lapping direction of bicomponent spunbond method non-weaving cloth.The effect that grips roller (10) is the composite that grips by set composite (9) output, can guarantee that like this elastomer keeps correct extended state in by compound process.The elastic composite that is compounded to form is being loosened afterwards through gripping roller (10), elastomer layer is lax replys, PE/PP bicomponent spunbond nonwoven layer bulges into fold, make three-dimensional elastic composite material, its elasticity direction is perpendicular to the long filament lapping direction of PE/PP bicomponent spunbond non-weaving cloth.The three-dimensional elastic composite material that makes is after loosening, by coiler device (11) coiling and molding.
Preparation method of the present invention is not only applicable to prepare double-deck elastic composite, also is applicable to the elastic composite of making multilayer.Embodiment 3 is by one deck PE/PP bicomponent spunbond nonwoven layer, one deck elastomer, three layers of elastic composite that the manufacturing of one deck PE/PP bicomponent spunbond nonwoven layer forms.
Beneficial effect
(1) utilizes the softness of PE/PP bicomponent spunbond method non-weaving cloth and the direction opposite sex to make elastic composite of the present invention form plentiful fold, have the excellent contact comfort property.
(2) prepared is simple, cost is low, appearance style is abundant, can be widely used in clothes, packing decoration, medical and health etc., especially the bundle leg of baby diapers is with a tight waist, the cuff of sportswear, windproof clothes, raincoat, operation dress selects the elastomer layer material of air-moisture-permeable type to make the wearer feel more comfortable.
Description of drawings
Fig. 1 is the technological process of production figure of the two-layer elastic composite of the present invention;
Fig. 2 is the schematic appearance of a kind of two-layer elastic composite of the present invention;
Fig. 3 is the schematic appearance of the another kind of two-layer elastic composite of the present invention;
Fig. 4 is the schematic appearance of a kind of three layers of elastic composite of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
The grammes per square metre of PE/PP bicomponent spunbond non-weaving cloth is 18g/m
2, the long filament of composition is a skin-core structure, and PE is a cortex, and PP is a sandwich layer.Elastomer is selected a kind of elastic polyurethane Web materials, and the screening area ratio is 60%, when keeping percentage elongation 50% to reach 30s, and its elastic recoil rate about 80%.As Fig. 1, in spinning equipment 1, PE and PP polymer raw material are melted to be extruded, the cooling drawing-off forms bicomponent filament, the lapping mode is vertical lapping, promptly long filament along the machine outbound course by laying to defeated lace curtaining, form PE/PP bicomponent spunbond non-weaving cloth 4 through hot rolling then.Stretching device 8 is an expanding equipment, and along its fabric width direction cross directional stretch, stretch ratio is 1: 3 with elastic network(s) 6.The complex method of set composite 9 selects chemical adhesion compound, the colored type of bounding point 12 is selected spaced in length and breadth round dot, the round dot diameter is 1.2mm, the center of circle of adjacent round dot is spaced apart 6mm, PE/PP bicomponent spunbond non-weaving cloth 4 is compound with the elastic network(s) 6 interval property chemical adhesions of cross directional stretch, forms double-deck elastic laminate composite.After through gripping roller 10, the elastic laminate composite is loosened, and the elasticity stratum reticulare is in the lax answer of fabric width direction, and PE/PP bicomponent spunbond nonwoven layer bulges into fold, make elastic composite as shown in Figure 2, its elasticity direction is perpendicular to the machine outbound course.
The grammes per square metre of PE/PP bicomponent spunbond non-weaving cloth is 15g/m
2, the long filament of composition is a parallel construction.Elastomer is selected a kind of elastic polyurethane film, when keeping percentage elongation 50% to reach 30s, and its elastic recoil rate about 60%.As Fig. 1, in spinning equipment 1, PE and PP polymer raw material are melted to be extruded, the cooling drawing-off forms bicomponent filament, the lapping mode is horizontal lapping, i.e. long filament lapping direction is perpendicular to the machine outbound course, and fibre web forms PE/PP bicomponent spunbond non-weaving cloth 4 through hot rolling then.Stretching device 8 is a pair of drawing roller, and along the outbound course longitudinal stretching, stretch ratio is 1: 1.5 with elastic membrane 6.Set composite 9 is a pair of hot roll, and rolling of topping roll a little is horizontal stripe, and the horizontal stripe width is 0.8mm, is spaced apart 4mm, and bottom roll is a smooth roll.The elastic film 6 of PE/PP bicomponent spunbond non-weaving cloth 4 and longitudinal stretching is spaced apart and hot in naturely rolls compoundly, forms double-deck elastic laminate composite.After through gripping roller 10, the elastic laminate composite is loosened, elastic film is lax replys, PE/PP bicomponent spunbond nonwoven layer bulges into fold, make elastic composite as shown in Figure 3, the direction of arrow is the machine outbound course, and the elasticity direction of elastic composite is along the machine outbound course.
Embodiment 3
Make a kind of three layers of elastic composite, as Fig. 4.Two-layer spunbonded nonwoven layer of cloth all is made up of the long filament of PP/PE bi-component parallel type structure, and every layer of spun-bonded non-woven quality is 12g/m
2 Elastomeric material 6 is selected polytetrafluoroethylene (PTFE) and polyurethane composite elastic breathable films, when keeping percentage elongation 50% to reach 30s, and elastic recoil rate about 90%.PE/PP bicomponent spunbond non-weaving cloth 4 is obtained by vertical lapping, and promptly direction filament is along the machine outbound course.Stretching device 8 is an expanding equipment, and with elastic film 6 cross directional stretchs, stretch ratio is 1: 2.Three layers of elastic composite are compared at process aspect with two-layer elastic composite, only before equipment complex 9, added the processing step of supplying with second layer PE/PP bicomponent spunbond non-weaving cloth together more, thereby made the both sides of elastic film that one deck PP/PE bicomponent spunbond method non-weaving cloth respectively be arranged.Set composite 9 is a pair of hot roll, and rolling of top and bottom rolls is vertical stripe all a little, and rolls a little corresponding, its width is 1mm, be spaced apart 6mm, the elastic film 6 of PE/PP bicomponent spunbond non-weaving cloth 4 and cross directional stretch is spaced apart and hot in naturely rolls compoundly, forms three layers of elastic laminate composite.After through gripping roller 10, the elastic laminate composite is loosened, elastic film is lax replys, two-layer PE/PP bicomponent spunbond nonwoven layer all bulges into fold in the both sides of elastic film, make elastic composite as shown in Figure 4, its elasticity direction is perpendicular to the machine outbound course, and arrow is depicted as the machine outbound course among Fig. 4.
Claims (6)
1. three-dimensional elastic composite material, its composition comprises: the netted elastic properties of materials body of one deck polyurethane (6) and one deck PE/PP bicomponent spunbond method non-weaving cloth (4) at least, two-layer or three layers of elastic composite, both are compound in interval property mode;
The preparation method of this three-dimensional elastic composite material comprises:
(1) feeding PE/PP bicomponent spunbond method non-weaving cloth, with the netted elastic properties of materials body of polyurethane in 1: 1.25～1: 8 ratio in vertical or horizontal stretching;
(2) bonding that PE/PP bicomponent spunbond method non-weaving cloth and the elastomer that is stretched is compound in interval property mode by hot calendering bonding, chemical adhesion or ultrasonic wave, make compound material along the non-adhesion area that continuous perforation is arranged on the long filament lapping direction of PE/PP bicomponent spunbond method non-weaving cloth;
(3) lax compounded multilayer elastic composite is by coiler device (11) coiling and molding.
2. three-dimensional elastic composite material according to claim 1 is characterized in that: three layers of elastic composite are by one deck PE/PP bicomponent spunbond nonwoven layer, one deck elastomer, and one deck PE/PP bicomponent spunbond nonwoven layer is made.
3. three-dimensional elastic composite material according to claim 1 is characterized in that: described elastomer thickness is no more than 3mm.
4. three-dimensional elastic composite material according to claim 1 is characterized in that: the fibre structure of described spun-bond process nonwoven layer is a long filament, and the composition structure of PE and PP is core-skin type, parallel type, tangerine lobe type or fabric of island-in-sea type in the long filament.
5. three-dimensional elastic composite material according to claim 1 is characterized in that: the grammes per square metre scope of described spun-bonded non-woven is 5～50g/m
2
6. the preparation method of novel three-dimensional elastic composite material according to claim 1, it is characterized in that: the long filament lapping direction of described elastomeric draw direction of step (1) and PE/PP bicomponent spunbond method non-weaving cloth is perpendicular.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812775B (en) * | 2009-12-23 | 2012-07-04 | 山东俊富非织造材料有限公司 | Discontinuous type SMS nonwoven material and preparation method thereof |
| EP2544895B1 (en) * | 2010-03-12 | 2014-10-01 | ExxonMobil Chemical Patents Inc. | Elastic meltblown laminate constructions and methods for making same |
| JP5539143B2 (en) * | 2010-09-30 | 2014-07-02 | ユニチカトレーディング株式会社 | Laminated fabric, medical clothing and medical materials using the same |
| TWI478812B (en) * | 2011-12-22 | 2015-04-01 | Tsrc Corp | Elastic multi-layer films and elastic article thereof |
| WO2018044286A1 (en) * | 2016-08-31 | 2018-03-08 | Kimberly-Clark Worldwide, Inc. | Non-stretch bonded elastic with elastic net |
| CN107399112A (en) * | 2016-12-01 | 2017-11-28 | 青海富腾生态科技有限公司 | The manufacture method for hiding blanket is made in a kind of compound non-spinning |
| CN115521488B (en) * | 2021-06-25 | 2024-03-26 | 中国石油化工股份有限公司 | Thermoplastic polyvinyl alcohol film with rebound performance and preparation method and application thereof |
| CN113619207B (en) * | 2021-08-09 | 2023-07-04 | 潍坊新环境生活用品有限公司 | Preparation method of super-soft, moisture-absorbing and sweat-releasing composite elastic fabric |
| CN115467094A (en) * | 2022-08-26 | 2022-12-13 | 柔怡美(厦门)卫生材料有限公司 | Preparation method of elastic composite material and elastic composite material thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519106A (en) * | 2003-01-22 | 2004-08-11 | 中国人民解放军总后勤部军需装备研究 | Method for preparing laminated textile with waterproof and transmission of humidity made from bi-directiona elastic Teflon |
| CN1629368A (en) * | 2003-12-16 | 2005-06-22 | 上海市合成纤维研究所 | Process for preparing double component spunbonded nonwoven fabrics |
| WO2008026106A2 (en) * | 2006-08-31 | 2008-03-06 | Kimberly-Clark Worldwide, Inc. | Nonwoven composite containing an apertured elastic film |
-
2008
- 2008-05-23 CN CN2008100379722A patent/CN101324030B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519106A (en) * | 2003-01-22 | 2004-08-11 | 中国人民解放军总后勤部军需装备研究 | Method for preparing laminated textile with waterproof and transmission of humidity made from bi-directiona elastic Teflon |
| CN1629368A (en) * | 2003-12-16 | 2005-06-22 | 上海市合成纤维研究所 | Process for preparing double component spunbonded nonwoven fabrics |
| WO2008026106A2 (en) * | 2006-08-31 | 2008-03-06 | Kimberly-Clark Worldwide, Inc. | Nonwoven composite containing an apertured elastic film |
Non-Patent Citations (3)
| Title |
|---|
| 同上. |
| 张建春.《织物防水透湿原理与层压织物生产技术》 2003年5月第一版.中国纺织出版社,2003,181页. |
| 张建春.《织物防水透湿原理与层压织物生产技术》 2003年5月第一版.中国纺织出版社,2003,181页. * |
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