JP2002194641A - Antistatic stretch fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antistatic stretch fabric having such high stretchability as to be compliant with human body motion, having such excellent touch feeling with firm texture as to be hard to develop wrinkles, and capable of preventing dust adhesion thereto due to quickly removing static electricity produced by frictional effect. SOLUTION: This antistatic stretch fabric comprises a protein fiber or a non-stretch synthetic fiber <=3% in official regain, a stretch fiber and an electroconductive fiber, wherein the electroconductive fibers intermittently arranged at least in either the warp or weft direction(s).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an antistatic stretch fabric.

More specifically, it has an excellent stretchability to follow the movement of the human body, and has an excellent feeling that it is hard to produce beams and wrinkles, and the static electricity generated by the frictional action is quickly generated. The present invention relates to an antistatic stretchable fabric capable of preventing dust from being attached because of static elimination.

[0003]

2. Description of the Related Art In recent years, in the clothing market, stretchable fabrics that follow the movement of the human body have been developed and used in combination with various materials.

[0004] In particular, as an outer use for suits and the like, stretchable fabrics are used in which a material such as wool (wool), polyester or acrylic and a material having a stretch property such as polyurethane fiber are mixed.

[0005]

However, a conventional stretchable fabric in which a material that easily generates static electricity, such as wool (wool), polyester fiber, or acrylic fiber, and a polyurethane fiber, etc., are mixed, the stretchable fabric caused by the movement of the human body is used. The materials rub against each other structurally, generating static electricity. In particular, in the case of a dark-colored cloth, there is a problem that the quality of the product is impaired due to the adsorption of dust.

An object of the present invention is to provide an antistatic stretchable fabric which is excellent in elasticity and can prevent adhesion of dust and the like due to static electricity and has an excellent feeling and is suitable for outer use.

[0007]

The antistatic stretch fabric of the present invention has the following means for solving the above-mentioned problems.

That is, it contains a protein fiber or a non-stretchable synthetic fiber having an official moisture content of 3% or less, a stretchable fiber and a conductive fiber, and the conductive fiber is at least one of the vertical direction and the horizontal direction. Characterized in that they are intermittently arranged in the direction of.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention contains a protein fiber or a non-stretchable synthetic fiber having an official moisture content of 3% or less, and further contains a stretchable fiber and a conductive fiber.

The protein fibers used in the present invention are preferably animal hair fibers such as wool, cashmere, mohair, alpaca, and camel hair, silk fibers such as silk (silkworm, wild silkworm), and feather fibers such as feathers.

[0011] The protein fiber is preferably used as a filament yarn, and is also preferably used as a spun yarn or a blended yarn with a fiber other than the protein fiber.

In the present invention, wool is particularly preferably used. Wool is preferably used as a worsted yarn or a worsted yarn obtained by worsted spinning or worsted spinning.

In the present invention, non-stretchable synthetic fibers having an official moisture regain of 3% or less can be used instead of, or in addition to, the protein fibers. The non-stretchable synthetic fibers having an official moisture content of 3% or less used herein include acrylic fibers such as polyacrylonitrile PAN fibers and acrylic fibers (PAN-vinyl chloride copolymer fibers), and PET (polyethylene terephthalate) fibers. And the like are preferred.

The non-stretchable synthetic fiber having an official moisture content of 3% or less may be a filament yarn or a processed yarn thereof, or a spun yarn or a non-stretchable synthetic fiber having an official moisture content of 3% or less. Blended yarns with fibers other than fibers may be used.

The stretchable fiber used in the present invention is preferably a false twisted or strongly twisted processed yarn, a latent crimped yarn obtained by combining differently shrinkable raw materials, or an elastic fiber.

The elastic fiber refers to a fiber having rubber-like elasticity. In the present invention, for example, a polyurethane fiber is preferably used.

The polyurethane fiber used in the present invention is preferably obtained by spinning a polyurethane polymer obtained by reacting a polymer diol, an isocyanate mainly composed of an organic diisocyanate, and a polyfunctional active hydrogen compound. The polymer diol used in the present invention is polytetramethylene glycol or polyethylene. Polyether glycols such as propylene ether glycol, ethylene glycol, 1,6-hexanediol, 1,4-butanediol, at least one glycol such as neopentyl glycol and adipic acid,
Suberic acid, azelaic acid, sebacic acid, β-methyl adipic acid, polyester glycols obtained by reacting at least one of dicarboxylic acids such as isophthalic acid, polycaprolactone glycol, and polymer diols such as polyhexamethylene dicarbonate glycol One or more mixtures or copolymers can be exemplified.

The organic diisocyanate used in the present invention includes 4,4'-diphenylmethane diisocyanate, 1,5-naphthalenediisocyanate, 1,4-
Phenylene diisocyanate, 2,4-tolylene diisocyanate, hexamethylene diisocyanate, 1,4
Examples thereof include one or a mixture of two or more organic diisocyanates such as cyclohexane diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, and isophorone diisocyanate. Further, a small amount of triisocyanate may be used in combination.

The polyfunctional active hydrogen compound used in the present invention includes ethylenediamine, 1,2-propylenediamine, hexamethylenediamine, xylylenediamine,
4,4'-diphenylmethanediamine, hydrazine,
1,4-diaminopiperazine, ethylene glycol,
1,4-butanediol, 1,6-hexanediol,
One type such as water or a mixture of two or more types thereof can be exemplified. Optionally, these compounds may include a monoamine,
A small amount of a terminator such as monoalcohol may be used in combination.
In addition, antioxidants such as 2,6-ditetrabutylparacresol and phosphite, light or ultraviolet absorbers such as hydroxybenzophenone or hydroxybenzothiazole, 1,1-dialkyl-substituted semicarbazide, dithiocarbamate and the like May be used as appropriate, and a white pigment such as titanium oxide and zinc oxide may be used as appropriate.

In the present invention, the polyurethane polymer is a polyurethane solution. As a solvent used for dissolving the polyurethane polymer, any solvent may be used as long as it is inert to the polyurethane polymer, but N, N-dimethylacetamide and dimethylformamide having high solubility of the polyurethane polymer can be used. , Dimethylsulfoxide, vinylpyrrolidone and the like are preferably used. The concentration of the polyurethane solution is not particularly limited, but is usually preferably in the range of 25% by weight to 80% by weight.
More preferably, it is in the range of 35% by weight or more and 55% by weight or less. If the amount is less than 25% by weight, the amount of heat required for evaporating the solvent increases, and spinning tends to be difficult. On the other hand, 80
If the amount exceeds 10% by weight, the stability of the solution deteriorates. As a result, the spinnability deteriorates, and if the polymerization degree of the polymer is reduced to improve the stability of the solution, the yarn quality tends to deteriorate. In the present invention, such a polyurethane polymer is dry, wet,
Alternatively, polyurethane fibers can be obtained by melt spinning.

The fineness of the polyurethane fiber used in the present invention can be appropriately selected depending on the application, but is usually in the range of 5 to 100 dtex, more preferably 10 to 100 dtex.
~ 80 decitex.

In the present invention, the stretchable fiber may be used as bare yarn as it is, or may be other natural fibers such as cotton and hemp, polyamide fibers such as nylon, polyester fibers, acrylic fibers, vinylon fibers, and the like. It is also preferred that the fibers are coated with synthetic fibers such as polypropylene fibers or the like, or twisted.

The conductive fiber used in the present invention is a metal-coated organic fiber coated with a metal by plating or vacuum evaporation, or a conductive resin-coated organic fiber coated with a resin in which conductive fine particles such as carbon black are dispersed. Preferred are a composite fiber obtained by blending or composite-spinning a conductive fine particle-dispersed polymer by a composite spinning technique, and a composite fiber obtained by composite-spinning a low-melting-point metal.

In the present invention, particularly from the viewpoints of durability, antistatic property, feeling and the like, a fiber-forming polymer such as polyester or polyamide described in JP-A-53-147865 is used. Organic fibers in which a substantially conductive linear polymer containing an organic conductive substance such as carbon black is dispersed in the fibers are preferred.

In the present invention, the conductive fiber may be used as bare yarn as it is, or may be other natural fibers such as cotton and hemp, polyamide fibers such as nylon, polyester fibers, acrylic fibers, vinylon fibers, and the like. It may be covered with a synthetic fiber such as a polypropylene fiber.

Further, in the present invention, fibers other than the above-mentioned protein fibers, non-stretchable synthetic fibers having an official moisture regain of 3% or less, stretchable fibers and conductive fibers are preferably used in combination. Such other fibers, for example, cotton,
Natural fibers such as hemp, regenerated cellulose fibers such as viscose rayon and cupra, and synthetic fibers such as polyamide fibers, polyvinyl alcohol fibers, polyvinyl chloride fibers, polyvinylidene chloride fibers, and polypropylene fibers are preferably used.

In the present invention, the cloth is preferably a woven fabric, and is also preferably a knit.

In the case of a woven fabric, a processed yarn obtained by coating a stretchable fiber such as an elastic fiber with a protein fiber or a non-stretchable synthetic fiber having an official moisture content of 3% or less is used for a part or all of the warp and weft. It is also preferable to use a yarn containing stretchable fibers in part or all of the warp or weft, and to use protein fibers or an official water content of 3 or more.
It is also preferred that yarns containing non-stretchable synthetic fibers of up to 10% are used.

Further, it is preferable that other fibers are interwoven.

The structure of the woven fabric may be a three-dimensional structure such as plain weave, oblique weave, or satin weave, a modified structure such as change plain weave, change oblique weave, or change satin weave, or a special structure such as honeycomb weave, mosaic weave, or satin weave. One-sided double weave, double weave, etc., double weave, double weave, double velvet, etc., multilayer weave such as belt weave, vertical velvet, towel, seal, velor, etc. Pile pile,
Pile weave such as velveteen, horizontal velvet, velvet, cole heaven and the like, and entangled structures such as gauze, gauze, and crest gauze are preferred.

The weaving is preferably performed by a shuttle loom (fly shuttle loom, etc.) or a shuttleless loom (rapier loom, gripper loom, water jet loom, air jet loom, etc.).

In the case of a knitted fabric, it is preferable to use a processed yarn obtained by coating the above-mentioned elastic fiber such as elastic fiber with a protein fiber or a non-stretchable synthetic fiber having an official moisture content of 3% or less. It is also preferable to use a yarn containing a non-stretchable synthetic fiber having an elastic fiber and a protein fiber or an official moisture content of 3% or less.

Further, it is preferable that another fiber is knitted.

The type of the knitted fabric may be a weft knitted fabric,
Further, it may be a warp knit or the like.

The structure of the knitted fabric is horizontal knitting, flat knitting, rubber knitting,
Double-sided knitting, pearl knitting, tack knitting, floating knitting, single-row knitting, lace knitting, bristle knitting, etc. are preferred, and vertical knitting is single denby knitting, single atlas knitting, double cord knitting, half tricot knitting, fleece knitting, Jacquard and the like are preferred.

Knitting includes flat knitting machines such as circular knitting machines, flat knitting machines and cotton knitting machines, tricot knitting machines, raschel knitting machines,
It is preferably performed by a Miranese knitting machine or the like.

In particular, from the viewpoint of the effect of dimensional stabilization, the cloth is preferably a woven fabric.

Further, in the present invention, it is preferable that heat setting is performed after knitting and weaving.

The heat setting conditions are 180 ° C. or less, 9 ° C.
Seconds or less, more preferably 160 ° C. or less and 90 seconds or less.

The cloth containing animal hair fibers and the like is preferably subjected to boiled or shrunk in order to provide a texture rich in elasticity and good luster, and is preferably carried out after heat setting. Nibori is a processing method in hot water, in which the fabric is wound around a roll while applying pressure from the surface and shaped.
The wrinkled yarn is mainly used for worsted yarns, and shrinkage is a processing method in which a cloth soaked in a soap solution is continuously pushed into a narrow box-shaped grinder to shrink, thereby giving the cloth a thickness. , Mainly those using woolen yarn.

In the present invention, the dyeing is preferably carried out after boiled or shriveled.

The dyeing includes a preparation step (scrutiny, etc.), a dyeing step (color matching, etc.), a finishing step (heat setting, etc.)
It is preferably carried out through a pre-dyeing (wat dyeing, yarn dyeing) carried out before weaving, a post-dyeing carried out after weaving (rope dyeing, spread cloth dyeing, pad steam dyeing, thermosol dyeing), printing, Any of product dyeing and the like may be used.

Dyeing is carried out using a commercially available jet dyeing machine, Wins dyeing machine, Jigger dyeing machine, paddle dyeing machine, cheese dyeing machine, skein dyeing machine, etc. It is preferably carried out with a reactive dye, an acid dye, a cationic dye, a disperse dye or the like.

In the present invention, it is also preferable to carry out a finishing heat setting after the dyeing step, from the viewpoint of improving the stability of the fabric. The conditions of the finishing heat set are preferably 180 ° C. or less and 90 seconds or less,
More preferably, it is 60 ° C. or less and 90 seconds or less.

Further, it is preferable to perform decatizing after the finish heat setting.

The decatizing means that the fabric is rolled up in a cylinder or the like, steamed, and rapidly cooled to improve the texture, form stability, and the like.

In the present invention, the conductive fibers are intermittently arranged in at least one of the vertical direction and the horizontal direction. If the conductive fibers are not intermittently arranged in at least one of the vertical direction and the horizontal direction, there is a problem that static electricity is charged, dust adheres, and the appearance quality is deteriorated.

In the present invention, as a means for intermittently arranging the conductive fibers, a method of sewing the conductive fibers into the cloth by using a commercially available sewing machine or the like, or by giving priority to the quality of the cloth, by interweaving the cloth in advance, A method of knitting is preferably adopted.

The direction in which the conductive fibers are mixed may be either one of the vertical direction and the horizontal direction of the fabric, or both of the vertical direction and the horizontal direction.

For example, in the case of a woven fabric, after combining conductive fibers by a method such as twisting or covering and mixing with a mating yarn, the woven fabric is warped so as to be arranged at equal intervals on the fabric, or a weft is formed on a loom. Is preferably performed.

In the case of a knitted fabric, it is preferable to knit a part of the yarn to be fed as a yarn combining conductive fibers.

In the present invention, without inhibiting the elasticity,
From the viewpoint of obtaining an antistatic effect, it is preferable to make the longitudinal direction of the conductive fiber coincide with the direction perpendicular to the longitudinal direction of the elastic yarn.

Further, the intervals at which the conductive fibers are arranged are as follows:
It is preferably 2 cm or less, more preferably 1 cm or less. And it is preferable that the arrangement is equally spaced.

It is preferable that the conductive fibers are introduced into the outer surface of the cloth in a stripe pattern at an equal interval to the cloth surface.

In the present invention, it is preferable that the ratio of the conductive fibers to be contained is 3% or less by weight.

[0056]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments.

The method for measuring each characteristic in the present invention will be described. [Ash test (dust adsorption test)] (1) Under an environment of 20 ° C. and 30% RH, a circular test piece (three pieces) having a diameter of about 18 cm, a cotton rubbing cloth of about 30 cm × about 30 cm (Kanakin No. 3, three pieces) ), About 1.5 g of tobacco ash was left. (2) The test piece was mounted on a wooden circular embroidery frame having a diameter of about 15 cm with the front side of the test piece facing outward. (3) Fold the cotton rubbing cloth in four and make 16 sheets, and press the surface of the test piece uniformly by pressing about 500 g to form a circle 15 times.
Rubbed twice. (4) Immediately after the end of friction, the surface of the test piece is
× Close to a distance of 1 cm from the bottom of a 1 cm deep container in which about 1.5 g of ash is uniformly dispersed in an area of about 10 cm.
Rested for seconds. (5) The degree of ash adhering to the surface of the test piece was evaluated in 5 stages (grade 5:
Grade with little dust adhesion, 4th grade: little dust adhesion, 3rd grade: considerable dust adhesion, 2nd grade: much dust adhesion, 1st grade: extremely large dust adhesion ), And evaluated by the average value of three sheets. [Friction band voltage, half-life] It was measured in accordance with JIS L 1094 method (test method for chargeability of woven fabric and knitted fabric) (N number was measured at 3).

Example 1, Comparative Example 1 As Example 1,
Polyurethane elastic yarn (registered trademark "Lycra", type 178C, 20 dtex) manufactured by Toray Dupont Co., Ltd. 1
Using two pieces of wool and 2/60 wool, twisting was performed with a ring type twister under the conditions of a draft rate of 2.5, a number of twists of 650 T / m, S twisting, and a steam set of 80 ° C. (30 minutes). I got

As the warp, a double wool of 2/60 wool is used, and as the weft, one wool composite elastic yarn and one wool 2/60 are used.
Using a shuttle loom, the working width of the loom is 186 cm, the plain weave, the length is 30 m, and the number of warps is 340.
Weaving was carried out under the conditions of 4 pieces, a horizontal driving density of 49 pieces / in, and a greige machine width of 173 cm.

The greige obtained was heated at 160 ° C. (average residence time 1
Min) and heat set at 60 ° C using a washing machine.
Washing is performed at 80 ° C using a boiler.
Dry at 20 ° C (1 minute) and use a jet dyeing machine at 98 ° C
(60 minutes).

After dyeing, drying at 120 ° C. (1 minute)
After finish heat setting at 60 ° C. (average residence time 1 minute), decatizing was performed by continuous process steaming.

Using a commercially available sewing machine for the obtained fabric, a conductive fiber nylon “Luana” (83 decitex) made by Toray Industries, Inc. (83 decitex) was used along the longitudinal direction of the warp. I sewed it up.

On the other hand, as Comparative Example 1, polyurethane elastic yarn (registered trademark “Lycra”) manufactured by Toray Dupont Co., Ltd.
Type 178C, 20 dtex) 1 piece and wool 2 /
Using two of these 60, a draft rate of 2.5, a number of twists of 650 T / m, a twist of 650 T / m, a twist of S, and a ply twist under the conditions of a steam set of 80 ° C. (30 minutes) were used to obtain a wool composite elastic yarn.

As the warp, a wool 2/60 twin yarn is used, and as the weft, one wool composite elastic yarn and one wool 2/60 are used.
Using a shuttle loom, the working width of the loom is 186 cm, the plain weave, the length is 30 m, and the number of warps is 340.
Weaving was carried out under the conditions of four pieces, a horizontal driving density of 49 pieces / in, and a greige width 172.

The obtained greige was heated at 160 ° C. (average residence time 1
Min) and heat set at 60 ° C using a washing machine.
Washing is performed at 80 ° C using a boiler.
Dry at 20 ° C (1 minute) and use a jet dyeing machine at 98 ° C
(60 minutes).

After dyeing, drying at 120 ° C. (1 minute)
After finish heat setting at 60 ° C. (average residence time 1 minute), decatizing was performed by continuous process steaming.

The cloth obtained in Example 1 had an excellent antistatic effect and a good texture compared to the cloth obtained in Comparative Example 1.

Table 1 shows the results.

[0069]

[Table 1]

Example 2 A cloth was obtained under the same conditions as in Example 1 except that the distance between adjacent conductive fibers was 2 cm.

The cloth obtained in Example 2 had an excellent antistatic effect and a good texture as compared with the cloth obtained in Comparative Example 1.

Table 1 also shows the results.

[Comparative Example 2] One wool 2/6 was used for the weft yarn.
Except for using a twin yarn of 0, the same yarn use as Comparative Example 1 was used.
A finished fabric was obtained.

The obtained fabric had no antistatic effect and was inferior in elasticity.

Table 1 also shows the results.

[0076]

As described above, according to the present invention, it has an excellent stretchability to follow the movement of the human body, has an excellent texture in which beams and wrinkles are hard to appear, and the static electricity generated by the frictional action is quickly discharged. Thus, an antistatic stretchable fabric that can prevent dust from adhering can be obtained.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D04B 21/00 D04B 21/00 B 21/18 21/18

Claims (9)

[Claims] 1. A non-stretchable synthetic fiber having a protein content or an official moisture content of 3% or less, a stretchable fiber and a conductive fiber, and the conductive fiber is at least one of a vertical direction and a horizontal direction. Characterized by being intermittently arranged in the direction of. 2. The antistatic stretch fabric according to claim 1, wherein the protein fiber is animal hair fiber. 3. The antistatic stretch fabric according to claim 1, wherein the protein fiber is wool. 4. The antistatic stretch fabric according to claim 1, wherein the stretchable fibers are polyurethane fibers. 5. The antistatic stretch fabric according to claim 1, wherein the interval of the intermittent dispersion of the conductive fibers is 2 cm or less. 6. The non-stretchable synthetic fiber having an official moisture regain of 3% or less is an acrylic fiber.
The antistatic stretch fabric according to any one of items 4 and 5. 7. The conductive fiber according to claim 1, wherein the conductive fiber contains carbon black.
Item 6. The antistatic stretch fabric according to item 4. 8. The antistatic stretchable fabric according to claim 1, wherein the arrangement direction of the conductive fibers is orthogonal to the arrangement direction of the stretchable fibers. 9. The antistatic stretch fabric according to claim 1, wherein the mixing ratio of the conductive fibers is 3% or less by weight.