JP5371375B2 - Wiping fabric - Google Patents

Description

  The present invention relates to a wiping fabric having good water absorption and oil absorption and excellent wiping performance.

  Conventionally, wiping materials have been widely used for wiping off glass and plastic products such as glasses and camera lenses, and wiping to remove fogging and dirt such as precious metals and glossy ornaments.

  Polyester splitting yarn is widely used as a material for these wiping materials, but it has excellent oil absorbency and excellent oil-based dirt wiping properties, but has poor water absorption, so there is a problem with water wiping properties such as water droplets. .

  In addition, a wiping material with improved water absorption has been proposed using a composite material of spun yarn such as cotton, hemp, and rayon, which are hygroscopic materials, and synthetic fibers, but the fluff of short fibers has been wiped away. It tends to adhere and has a problem in cleaning performance.

In order to solve this problem, for example, in Japanese Patent Laid-Open No. 3-1831 (Patent Document 1), it is composed of a combination yarn of an acetate long fiber of 13% by weight or more and an ultrafine long fiber having a single yarn fineness of 0.5d or less. An ultrafine fiber reduced in weight by 2% by weight or more is arranged on the surface of the cloth by alkali treatment, and an acetate long fiber reduced in weight by 13% by weight or more is arranged inside the cloth, and the water retention rate of the cloth Although a wiping cloth having a water absorption performance of 210% by weight or more and a water absorption speed of 3 seconds or less has been proposed, there is room for improvement due to poor stability of the fabric, and it cannot be said that it is still satisfactory.
Japanese Patent Laid-Open No. 3-1831

  The present invention has been made to solve the above-mentioned problems in the prior art, and its specific purpose is excellent in both hygroscopic and oil-absorbing performances, and has excellent fabric stability and wiping performance. It is to provide a fabric.

The present invention achieves the above-mentioned problems and has the following configuration.
That is, the present invention provides a wiping fabric comprising at least a composite yarn of cellulosic fibers and polyester fibers and satisfying the following requirements.
(1) The bending resistance is 30 mm or less,
(2) The coefficient of friction is 0.2 to 0.3,
(3) Cover factor is 1700-2500.

  The cloth for wiping of the present invention has the above-described configuration, so that it has excellent water absorbency and oil absorbability, has a stable cloth, and has excellent wiping performance.

Hereinafter, preferred embodiments of the present invention will be specifically described.
The wiping fabric of the present invention comprises at least a composite yarn of cellulosic fibers and polyester fibers, and it is necessary to satisfy the following requirements.
(1) The bending resistance is 30 mm or less,
(2) Friction coefficient is 0.2-0.3,
(3) Cover factor is 1700-2500.

  Cellulosic fibers used in the present invention may be filament yarns of fibers regenerated or semi-synthesized using cellulose as a raw material, and examples of regenerated fibers include viscose rayon and lyocell. For example, cellulose diacetate fiber, cellulose triacetate fiber and the like are mentioned, but the production method and type thereof are not particularly limited, and the cross-sectional shape, surface shape, gloss, fineness, etc. of the single yarn are not particularly limited. The wiping fabric to be obtained may be arbitrarily selected in consideration of the wiping fabric to be obtained, but preferably the following configuration can be adopted from the viewpoint of water absorption and fabric stability.

  For example, by saponifying cellulose diacetate fiber and cellulose triacetate fiber, if the fiber has a higher water absorption effect than ordinary rayon, it prevents dust and the like from being adsorbed on the wiping fabric, and prevents the object to be wiped off. Is also preferable because dust and the like are not attached.

The production method and type of the synthetic fiber used in the present invention are not particularly limited, and the cross-sectional shape, surface shape, gloss, fineness, shrinkage, stretchability, dye dyeing characteristics, etc. of the single yarn are not particularly limited. . Moreover, what combined 2 or more types of synthetic fibers may be sufficient, Preferably the following structure is employ | adopted from a viewpoint of dirt wiping off property.
For example, split-type raw yarns composed of polyester fibers and polyamide fibers are preferably used because they have excellent dirt scraping properties due to the shape of the raw yarn having edges, and are particularly easy to make multifilaments. .

  The cellulosic fiber and polyester fiber composite yarn used in the present invention is not particularly limited in its production method, and may be arbitrarily selected depending on the texture and design of the target woven fabric. preferable.

For example, a suitable processed yarn can be obtained by appropriately entanglement of a cellulosic fiber and a synthetic fiber by air-mixing using interlace. The number of interlaced entanglements is preferably 60 to 110.
When the number of entanglement is 60 or less, wrinkles due to the color difference between the cellulosic fibers and the synthetic fiber are easily revealed, and when it is 110 or more, the bending rigidity of the composite yarn is increased and the drape of the fabric is decreased. However, the entangled portion becomes hard and easy to wipe unevenly when wiping.

  Further, before interlace blending, each of the cellulosic fibers and synthetic fibers or one of them may be subjected to false twist crimp, and in this case, an appropriate flaming and a sense of density can be imparted to the wiping fabric. .

Saponification of cellulose acetate fibers and splitting of synthetic fibers can be carried out simultaneously by alkali treatment after using the composite yarn as a fabric, so that a fabric having suitable wiping performance can be obtained efficiently. By taking this step, the yarn shrinkage due to the synthetic fiber and the saponification shrinkage of the cellulose acetate fiber can be controlled. A relatively large amount of synthetic fiber is disposed in the outer layer of the composite yarn, and a relatively large amount of saponification is applied to the inner layer. It becomes possible to dispose cellulose acetate fibers, and it is possible to exhibit a wiping performance against oil by the synthetic fibers of the outer layer and water absorption and moisture absorption performance of the saponified cellulose acetate of the inner layer, and a favorable effect can be obtained.
Further, the air-mixed composite yarn by the interlace may be twisted, and by this additional twist, it becomes possible to exhibit further remarkable effects of the outer layer and the inner layer.

The wiping fabric of the present invention needs to have a bending resistance of 30 mm or less.
When the bending resistance exceeds 30 mm, the cloth is hard and difficult to bend when wiping, making it difficult to wipe.

The wiping fabric of the present invention needs to have a friction coefficient in the range of 0.2 to 0.3.
When the friction coefficient is less than 0.2, the edge effect, that is, the wiping property is deteriorated when the object is wiped. On the other hand, if the friction coefficient exceeds 0.3, the object may be damaged when the object is wiped, and handling may be uncomfortable due to the catch.

The wiping fabric of the present invention needs to have a cover factor in the range of 1700-2500.
If the cover factor is less than 1700, problems such as snag are likely to occur during wiping. On the other hand, when the cover factor exceeds 2500, the fabric becomes hard, and it is difficult to bend and wipe off when wiping.
By adopting the above configuration, a wiping fabric excellent in wiping performance can be obtained without special post-processing.

  The water absorption rate of the wiping fabric of the present invention is not particularly limited, but is preferably 5 seconds or less. If the water absorption speed exceeds 5 seconds, moisture such as water droplets cannot be absorbed instantly, resulting in poor wiping performance.

  The water retention rate and oil retention rate of the wiping fabric of the present invention are not particularly specified, but the water retention rate and oil retention rate after 10 minutes are 200% or more, the water retention rate after dehydration is 50% or more, and the water retention rate after dehydration. The oil ratio is preferably 70% or more. Below these values, dirt such as moisture and oil removed by wiping is attached to the object to be wiped again.

  The form of the fabric of the present invention is not particularly specified as a woven fabric or a knitted fabric, and the structure may be freely selected within the scope of the present invention. However, in the fabric of the present invention, plain weave and twill Even in simple fabrics made of weaving, it has an excellent effect.

Hereinafter, the present invention will be specifically described based on examples. Moreover, the evaluation was implemented as follows.
1. Bending softness According to "JIS L1096 Bending Softness A Method", the bending resistance in the warp direction and the weft direction was measured, and the average value was calculated.
2. Coefficient of friction MIU was measured with a KES surface tester.
3. Cover factor The cover factor was calculated according to the following formulas (I) to (III).
Cover factor = Cover factor of longitude + Cover factor of latitude… (I)
Cover factor of warp = Fineness of warp (dTex) 1/2 x Warp density (main / 2.54cm)… (II)
Weft cover factor = Weft fineness (dTex) 1/2 x Weft density (main / 2.54cm)… (III)
4). Water absorption Water absorption was measured by the “JIS L1907 dropping method”.
5. Water retention and oil retention after 10 minutes The water retention and oil retention were measured according to “JIS L1996 Drying Method B”.
6). Water retention and oil retention after dehydration The water retention and oil retention after 2-minute dehydration were measured with a centrifugal dehydrator (2000 rpm).

[Example 1]
Tri-acetate multifilament yarn with a single yarn chrysanthemum cross section (manufactured by Mitsubishi Rayon Co., Ltd., Bright 110dTex / 64 filament (f) degree of acetylation 61.2) and split composite filament yarn made of polyester and polyamide (CR-950 made by Kuraray Co., Ltd.) KN 84dTex / 24f) was used to produce an interlaced air-mixed yarn.

A plain weave fabric was prepared by using the mixed yarn for warp and weft of the fabric. The raw fabric of the resulting fabric was scoured by a conventional method, then reduced in weight by a caustic soda 26% owf solution at 105 ° C. and saponified, and the fabric reduced by 32.3% from the raw fabric was dyed and processed by a conventional method. A plain weave with a finishing warp density of 83 / 2.54 cm and a finished weft density of 73 / 2.54 cm was obtained.
The physical properties of the resulting fabric are shown in Table 1. The obtained woven fabric was excellent in wiping properties of moisture and oil, and was comfortable to wipe due to appropriate softness of the fabric.

[Example 2]
Tri-acetate multifilament yarn with a single yarn chrysanthemum cross section (manufactured by Mitsubishi Rayon Co., Ltd., Bright 110dTex / 64 filament (f) degree of acetylation 61.2) and split composite filament yarn made of polyester and polyamide (CR-950 made by Kuraray Co., Ltd.) KN 84dTex / 24f) false twisted yarn was used to produce an interlaced air mixed yarn.

A plain weave fabric was prepared by using the mixed yarn for warp and weft of the fabric. The raw fabric of the resulting fabric was scoured by a conventional method, then reduced in weight by a caustic soda 26% owf solution at 105 ° C. and saponified, and the fabric reduced by 32.2% from the raw fabric was dyed and processed by a conventional method. A plain weave with a finishing warp density of 83 / 2.54 cm and a finished weft density of 73 / 2.54 cm was obtained.
The physical properties of the resulting fabric are shown in Table 1. The obtained woven fabric was superior in wiping property of moisture and oil as compared with Example 1 due to the use of false twisted yarn, and was comfortable in wiping due to appropriate softness of the fabric.

Example 3
A twill-woven fabric that was raised 2/1 to the right was prepared by using the mixed yarn prepared in Example 2 for warp and weft of the fabric.
After scouring the raw fabric of the obtained woven fabric by a conventional method, the fabric was reduced and saponified by a caustic soda 26% owf solution at 105 ° C., and the fabric reduced by 30.1% from the raw fabric was dyed and processed to light blue. By dyeing, a twill weave with a finishing warp density of 110 pieces / 2.54 cm and a finished weft density of 94 pieces / 2.54 cm was obtained.
The physical properties of the resulting fabric are shown in Table 1. The resulting woven fabric was superior to Example 2 in wiping moisture and oil due to the use of the twill weave structure, and was more comfortable to wipe than moderate softness of the fabric.

[Comparative Example 1]
A polyester multifilament yarn (84T / 18f) having a single yarn round cross section was used as the warp of the fabric, and a false twisted yarn of the polyester filament yarn (220T / 34f) was used as the weft of the fabric to prepare a 2/1 twill fabric. After scouring the raw fabric of the obtained fabric by a conventional method, the fabric was reduced in weight by a caustic soda 26% owf solution at 105 ° C., and the fabric reduced by 30.6% from the raw fabric was dyed by a conventional method and dyed and finished in light blue. A twill woven fabric having a finishing warp density of 144 pieces / 2.54 cm and a finished weft density of 112 pieces / 2.54 cm was obtained.

  The physical properties of the resulting fabric are shown in Table 1. The resulting woven fabric was satisfactory for wiping off oil, but was inferior in moisture wiping. Moreover, since the coefficient of friction was high, some scratches were observed on the object to be wiped.

Claims (2)

A wiping fabric comprising a composite yarn of at least a cellulosic fiber and a synthetic fiber and satisfying the following requirements.
(1) Bending softness 30mm or less
(2) Coefficient of friction 0.2-0.3
(3) Cover factor 1700-2500   2. The wiping fabric according to claim 1, wherein the number of entanglements of the composite yarn is 60 to 110.