JP2003129353A - Fabric excellent in water-wiping ability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiping fabric excellent in water absorbency, water retainability and wiping ability and preferably applied especially to glassware. SOLUTION: This fabric is excellent in water wiping ability, comprises a textile having synthetic fiber multifilament of <=1 dtex single filament fineness in the cover part and using a conjugate yarn comprising a synthetic fiber having >=8% hygroscopic property in at least a part of the fabric as the core yarn and is characterized by satisfying formula (I): water absorption (%)/water absorbing rate (sec)>=0.50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping cloth having extremely excellent water absorbency and wiping durability.

[0002]

2. Description of the Related Art A cotton towel has been a typical representative of wiped cloth. The cloth made of cotton has excellent water absorption and water retention due to the characteristics of the fiber. However, since cotton has a large single-filament fineness, it is not only inferior in wiping performance for dust, etc., but also when wiping glass, etc., short fiber scraps tend to remain on the wiped surface (self-generated dust), so improvement is required. It was being done.

Fabrics using composite spun yarn made of a combination of regenerated cellulose and cotton exist as commercial products. The aim is to reduce the amount of dust generation by combining it with rayon, which is a long fiber, but in the twisted yarn structure, rayon exists mainly in the core yarn part, and the fibers that come into contact with the wiping surface are mainly cotton. However, the combined effect was small and the dust reduction effect was small. Although it is possible to have a large amount of rayon on the surface, the wiping performance has not been improved so much because the cost is high and it is difficult to reduce the single yarn fineness.

On the other hand, there have been proposed many wiping cloths which use ultrafine fibers of polyester filaments. The ultrafine filaments have a relatively small curvature with respect to foreign matter such as dust, and the wiping effect is improved. However, synthetic fibers, especially polyester, are less hydrophobic than natural fibers because they are hydrophobic, and in a wiping cloth consisting only of them, water is only present in the gaps between fiber bundles, and the water absorption is insufficient. Met.
Therefore, when wiping a wet glass cup or the like, a lot of water squeezing work had to be done, and the efficiency was very poor. Further, attempts have been made to use false twisted textured yarns and modified cross-sections for the purpose of improving the wiping-off property, but only with these, the water absorption and the wiping-off property are limited, and the effect is insufficient.

[0005]

DISCLOSURE OF THE INVENTION As a result of earnest research in view of such a situation, the present inventors have found that when the water is wiped off, the fiber wastes are not left on the wiped surface as much as possible, and the water absorption is excellent. An object of the present invention is to obtain a cloth which has water retention ability, in which the number of times of squeezing water can be reduced, and moreover, fine dust can be wiped off.

[0006]

The present invention has the following constitution in order to solve the conventional problems.

That is, the wiping cloth of the present invention has a synthetic fiber multifilament having a single yarn fineness of 1 decitex or less in the covering portion, and a composite thread made of synthetic fiber having a hygroscopicity of 8% or more as a core thread. The woven or knitted material is used at least in part, and the water absorption rate (%) / water absorption rate (second) is to be 0.50 or more.

Further, in the wiping cloth of the present invention, it is preferable that the coating yarn of the composite yarn is made of polyester filament.

In the wiping cloth of the present invention, it is preferable that the synthetic fibers of the core yarn of the composite yarn are short fibers.

In the wiping cloth of the present invention, it is preferable that the synthetic fiber multifilament has a polygonal cross section.

In the wiping cloth of the present invention, it is preferable that the synthetic fiber multifilament is a false twisted yarn.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. It is desirable that the coated yarn of the composite yarn that constitutes the wiping cloth of the present invention contains a multifilament having a single yarn fineness of 1 dtex or less. If the single yarn fineness is larger than 1 decitex, not only the wiping effect is significantly deteriorated but also the water diffusivity is deteriorated. Therefore, dust or dirt may not be sufficiently wiped off during the wiping, or water may easily remain on the wiped surface. Become. A more preferable range is 0.5 decitex or less, further 0.4 decitex or less, and a still more preferable range is 0.3 decitex or less. As the method for producing the raw yarn, either single-component spinning or composite spinning may be employed, but the direct spinning method is preferably employed in view of production cost and environmental problems. In that case, 0.1 decitex or more is preferable from the viewpoint of multifilament spinning operability. Polyester, particularly polyethylene terephthalate, is preferably adopted as the resin which is easily made into ultrafine particles.

It is desirable that the core yarn of the composite yarn constituting the wiping cloth of the present invention contains a synthetic fiber having a hygroscopic property of 8% or more. If the hygroscopicity is less than 8%, the water absorption performance is significantly deteriorated. A more preferable range is 10% or more, and further 12% or more. As a method of producing the synthetic fiber, modification of acrylic is generally used, but the method is not particularly limited.

The composite yarn in the present invention refers to a composite yarn of filaments and a composite spun yarn with short fibers.
It does not impose any limitation on the manufacturing method such as filament composite during spinning.

The wiping cloth of the present invention preferably has a water absorption rate (%) / water absorption rate (second) of 0.50 or more. The ability to wipe off water is proportional to the water absorption rate (ratio of the amount of water absorption to its own weight) of the cloth and is inversely proportional to the water absorption rate. The higher the water absorption rate and the faster the water absorption rate, the better the water supply capacity of the cloth. In the present invention, it was found that when the water absorption rate / water absorption rate is 0.50 or more, excellent water wiping ability is exhibited. It is preferably 0.75 or more, and more preferably 1.00 or more. In addition, a cloth having these properties can be preferably used, particularly when it is used as a wiping cloth, since the functionality is sufficiently exhibited.

The weight percentage of the synthetic fiber multifilament of the coated yarn in the composite yarn used in the wiping cloth of the present invention is preferably 10 to 60% by weight. If it is less than 10%, the wiping effect is inferior, which is not preferable. On the other hand, if it exceeds 60%, the proportion of multifilaments increases and the water retention capacity tends to deteriorate, which is not preferable. It is more preferably 15 to 40% by weight.

The synthetic fibers of the core yarn which compose the composite yarn used in the wiping cloth of the present invention are preferably short fibers.
Short fibers have more air layers than long fibers and physically retain more water. It is suitable for the wiping cloth of the present invention, especially for the cloth used for the wiping cloth.

The total fineness of the composite yarn used in the wiping cloth of the present invention is preferably 50 to 300 decitex. The total fineness of the composite spun yarn affects not only the texture of the cloth but also the wiping performance. If the total fineness is less than 50 decitex, the texture becomes soft, but the tear strength and the water retention capacity tend to be poor, which is not preferable. On the other hand, if it is larger than 300 decitex, the fabric becomes bending and stiff, and for example, unwiping is likely to occur when wiping a glass product having an uneven pattern, which is not preferable. More preferably 1
It is from 00 to 250 decitex.

The synthetic fiber multifilament constituting the composite yarn used in the wiping cloth of the present invention is preferably a fiber having a polygonal cross section. If the fiber has a polygonal cross section, the edge effect of the convex portion improves the wiping effect of dust, etc.
Furthermore, since the surface area is increased, in other words, the total volume of the voids formed between the single fibers is increased, and the water retention capacity is improved, which can be preferably used.

It is preferable that the synthetic fiber multifilament constituting the composite yarn used in the wiping cloth of the present invention is a false twist crimped yarn. Both the cross-sectional deformation of the crimped yarn formed during false twisting and the formation of crimps preferably act on the present invention. The deformation of the cross section improves the wiping property by forming edges, and the formation of crimps improves the multifilament covering property of the composite spun yarn. Furthermore, the crimped form is likely to hold dust and the like. It is considered that the wiping performance is improved due to the improvement of

Further, it is also preferable that hydrophilic treatment of the surface of the synthetic fiber multifilament is carried out by post-processing. Nonionic surfactants, hydrophilic condensates, and other hydrophilic processing agents can be applied by a pad cure method, a pad steam method, a pad dry method, or the like. In particular, those that impart excellent hydrophilicity and SR property to both the synthetic fiber multifilament and the hydrophilic short fiber are preferable, and Sofbon ST- manufactured by Takemoto Yushi Co., Ltd.
543, Permarine MR-100 manufactured by Sanyo Kasei Co., Ltd., Aquaprene WS-10 manufactured by Meisei Chemical Co., Ltd., and the like.

The fabric of the present invention includes all forms having a two-dimensional structure and a three-dimensional structure. There is no particular limitation on woven fabrics, knitted fabrics, multiaxial woven fabrics, multiaxial woven fabrics, and the like, and they may have a tubular shape, a bag shape, or a glove shape. In the case of a woven fabric, examples of a loom suitable for use include an air jet loom, a rapier room, and a projectile room.

The dyeing finishing process is not particularly limited. When different fibers are mixed for dyeing, the dyeing temperature, the hydrogen ion concentration, the dye and the like are different, so that it is preferable to use the two-bath dyeing in consideration of the reproducibility of the color.

[0024]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. The water retention, water absorption rate, and fineness used in the present invention were measured by the following measuring methods.

Water absorption rate: 1994 version JIS L-1
907 5.1.1 (Drop method).

Water absorption rate: 1994 version JIS L-19
It was evaluated according to 07 5.2.

Total fineness: According to JIS-1095 9.4.2.

(Example 1) A modified polyester filament having a hygroscopic property of 12% as a core yarn of a single covering yarn, a polyester semi-dulled alignment yarn (A) having a circular cross section of 17 decitex 9 filaments, and a polyester semi-coated yarn as a covering yarn. Dull round cross section 41 decitex 180 filament (B) and covering with a twisting machine 1000 times / m
I made a single covered yarn. The ratio of coated yarn is 31
% By weight.

The obtained composite yarn is used for both the warp and weft, and after weaving into a double-sided satin design with an air jet loom, scouring / relaxing, disperse dye dyeing are carried out, and reduction washing and hot water washing are repeated, followed by finishing. A dry heat setting was performed to obtain a fabric. The obtained cloth was cut into a cloth shape and sewn.
The water absorption rate (%) / water absorption rate (second) is 1.02, and no dust or water stains remain on the wiped surface and no dust is seen on the surface after wiping. The workability was good.

(Example 2) A modified polyester fiber having a hygroscopic property of 12% and a polyester semi-dull as a core yarn of a single covering yarn and an aligned yarn (A) having a circular cross section of 17 decitex 9 filaments and a polyester semi-dal as a covering yarn. A single covered yarn having a twist number of 600 turns / m was prepared by a covering machine using a circular cross section of 84 decitex 360 filament (B). The proportion of coated yarn is 25% by weight.

Using the obtained composite yarn, a fabric was finished in the same manner as in Example 1. The obtained cloth was cut into a cloth shape and sewn. Water absorption rate (%) / Water absorption rate (second)
Was 1.08, and no water droplets or water stains remained on the wiped surface, no dust was found on the surface after wiping, and the wipeability was good.

(Example 3) Modified acrylic short fibers having a hygroscopic property of 35% and polyester semi-dal 17 cross section 17 decitex 9 filaments (A) were aligned in a draft zone of a spinning machine and led out to a front roller. It was twisted in a twisting zone with a dull round section 41 decitex 180 filament (B). The twist factor is 3.2 and the proportion of coated yarn is 25% by weight.

The obtained composite yarn is used for both warp and weft, and after weaving into a double-sided satin design with an air jet loom, scouring / relaxation, two-bath dyeing with a disperse dye and a basic dye are carried out to carry out reduction washing and hot water. After repeating washing, finishing dry heat setting was performed to obtain a cloth. The obtained cloth was cut into a cloth shape and sewn. The water absorption rate (%) / water absorption rate (second) is 1.35, and no dust or water stains remain on the wiped surface, and no dust is seen on the surface after wiping. The workability was good. (Comparative Example 1) A fabric was obtained in the same manner as in Example 1 except that the multifilament (B) was changed to a polyester semi-dal round cross section 41 decitex 36 filament. The obtained cloth was cut into a cloth shape and sewn. Water absorption rate (%) / water absorption speed
(Seconds) was 0.50, and water droplets remained minimal on the wiped surface, but the ability to remove oily dirt such as sebum was particularly poor as compared with Examples 1, 2 and 3. Therefore, it was not a preferable wiper.

Comparative Example 2 A fabric was obtained in the same manner as in Example 1 except that the modified polyester long fibers having a hygroscopic property of 12% were changed to nylon 6 long fibers having a hygroscopic property of 4%. The obtained cloth was cut into a cloth shape and sewn. Water absorption rate (%) /
The water absorption rate (second) was 0.22, and the wiping performance for oily dirt such as sebum was slightly good on the wiping surface, but residual water drops and aqueous dirt were remarkable. Compared with Examples 1, 2, and 3, the amount was poor, and it was not a preferable wiper.

[0035]

[Table 1]

[0036]

EFFECTS OF THE INVENTION According to the present invention, the wiping surface has a water drop trace,
It is possible to provide a wiping cloth that keeps clean without leaving a stain mark. Particularly, since it has an excellent water-wiping property, the number of times of water squeezing can be small, and glass and tableware can be efficiently wiped.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B074 AA02 AA07 AB01 AC03 BB04                 4L036 MA05 MA20 MA33 MA35 MA39                       MA40 PA05 PA33 RA24 UA25                 4L048 AA20 AA21 AA35 AA37 AA54                       AA56 AB07 AB17 AB19 AC15                       CA07 DA21 EA01

Claims (5)

[Claims] 1. A woven fabric in which a synthetic yarn multifilament having a single yarn fineness of 1 decitex or less is used as a covering yarn, and a composite yarn having a part of synthetic fibers having a hygroscopic property of 8% or more is used as at least a part of a fabric as a core yarn. A fabric excellent in water wiping property, which is made of a knitted fabric and satisfies the following formula (1). Formula (1) Water absorption rate (%) / water absorption rate (seconds) ≧ 0.50 2. The cloth excellent in water-repellent property according to claim 1, wherein the coated yarn of the composite yarn is made of polyester filament. 3. A fabric excellent in water-wiping property according to claim 1, wherein the synthetic fibers of the core yarn of the composite yarn are short fibers. 4. The cloth excellent in moisture wiping property according to claim 1, wherein the synthetic fiber multifilament has a polygonal cross section. 5. The cloth excellent in water-wiping property according to claim 1, wherein the synthetic fiber multifilament is a false twist textured yarn.