JP2000336545A - Method for producing durable antistatic water-repellent fabric - Google Patents

Abstract

(57) [Problem] To provide a durable antistatic water-repellent fabric having excellent dry feeling, swelling feeling, firmness, and waist, excellent softness and rebound resilience, and excellent washing durability. SOLUTION: A core-sheath structure containing an antistatic agent in a core portion is provided.
20% by weight or more of mixed fineness yarn containing 20% by weight or more of fine denier yarn of 2 denier or more and 5% by weight or more of fine denier yarn of 1.5 denier or less having an L-shaped cross-section At the same time, the latent crimpable composite filament yarn having a crimp ratio of 50% or more after the boiling water treatment is contained in the fabric by 10% by weight or more to constitute a fabric, and thereafter, dyeing and water repellent treatment are performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a good elasticity
The present invention relates to a method for producing a fabric having anti-static and water-repellent properties, which has a feeling excellent in dryness, swelling, softness and rebound resilience, and has excellent washing durability.

[0002]

2. Description of the Related Art Conventionally, synthetic fiber fabrics have a tendency to accumulate static electricity, cause static electricity damage when sewing or wearing sewn products, give discomfort due to electric shock or cling to the body, and reduce dust in the air. There was a problem that it was easily absorbed and stained. In addition, synthetic fiber fabrics are often used for outer garments, but there is also a problem that clothes get wet due to rain or snow. Conventionally, various methods have been proposed to address each of the above problems. For example, for antistatic processing, a method of forming a complex on the fiber surface by treatment with an ionic polymer activator, or applying a mixture of a hydrophilic polymer substance and an acidic, basic or amide type low molecular weight substance to the fiber Then, dry heat, wet heat, radiation, microwave, a method of grafting to the fiber surface by microwaves, etc., furthermore, a polymerizable monomer containing a block polymer of ethylene glycol and propylene glycol, the terminal of which is composed of acryl or methacryl, A method has been proposed in which a prepolymer or the like containing a block polymer of ethylene glycol and propylene glycol and having a crosslinkable functional group at the terminal is resinified on fibers alone or in combination with a crosslinking agent.

[0003] On the other hand, the water repellent treatment is usually carried out by impregnating a cloth with a water repellent such as a fluorine-based water repellent or a silicon-based water repellent in a final finishing step, and then performing a dry heat treatment. In particular, water-repellent processing using a fluorine-based water-repellent excellent in washing durability has been performed in many cases.

[0004] In addition, many processing methods for simultaneously imparting antistatic properties and water repellency to synthetic fiber fabrics have been performed. Generally, in the final finishing step, a fluorine-based water repellent is added to an alkylsulfonic acid type or a water-repellent agent. It is processed by a method in which an alkyl phosphate ester type antistatic agent is mixed and impregnated by a padding method. However, although the antistatic water-repellent cloth obtained by the above method is excellent in general performance, it has a drawback that both performances for washing are greatly reduced, so that the clothes after washing may have rain. There is a problem that it is easily wetted by snow and snow, and dust easily adheres due to generation of static electricity.

[0005] Various methods have also been used to achieve both antistatic properties and water repellency by using a yarn having antistatic performance, which imparts antistatic performance to the fabric and further provides a dry feeling, a soft feeling, or a swelling. Japanese Patent Application Laid-Open Nos. 55-158333 and 59-228033, have been introduced in embodiments such as these, and in these publications, the fineness of a single yarn is reduced to 1.5 denier or less, The fabric is softened by giving a difference in shrinkage ratio between the yarn groups, and the swelling effect is exhibited. However, the yarns composed of these fine fine yarns or different shrinkage mixed yarns are not devised in any way in the fineness composition or cross-sectional shape between the single yarns, and can be sufficiently satisfied only by the effect of fineness and the difference in shrinkage ratio. A textured fabric was not obtained.

[0006] If a yarn having a relatively large fineness is used in order to obtain a feeling of firmness, waist, dryness, swelling, softness, rebound resilience, etc., it is possible to impart a feeling of firmness and waist to the fabric. However, since the single-fiber fineness is large, the feeling becomes soft and lacks a soft feeling, and conversely, if the single-fiber fineness is reduced to give a soft feeling to the fabric, the soft feeling is emphasized, but it is good. It lacks firmness and waist, and it becomes a slimy fabric. Polyurethane elastic yarns are generally used to obtain a feeling of excellent rebound resilience. However, polyurethane elastic yarns have problems of deterioration due to sunlight, poor dyeing fastness, and high cost. As described above, when some performances are satisfied, a phenomenon that other performances are insufficient appears, and even to this day, it has water repellency and antistatic performance with washing durability, and is soft and firm.
A fabric having waist, dry feeling, swelling, and rebound resilience has not been obtained.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of such circumstances, and has a good feeling of firmness, waist, dryness, swelling, softness and resilience. An object of the present invention is to manufacture a durable antistatic water-repellent cloth having excellent water repellency and antistatic property with washing durability.

[0008]

SUMMARY OF THE INVENTION The present invention achieves the above-mentioned object and has the following construction. That is, the present invention provides a flat trunk having a core-sheath structure containing at least 20% by weight of a fine yarn having a denier of 2 denier or more containing an antistatic agent only in the core and having a substantially linear cross section. Non-rotationally symmetric single-filament yarn having a fineness of 1.5 denier or less and a mixed fineness yarn having a fineness of 5 denier or more and a latent crimpability of 50% or more in the crimping ratio after boiling water treatment Using a composite filament yarn, the mixed fineness yarn is contained in an amount of 20% by weight or more based on the fabric, and the latently crimpable composite filament yarn is included in an amount of 10% by weight or more based on the fabric. The present invention provides a method for producing a durable antistatic water-repellent fabric, which comprises performing a water-repellent treatment after dyeing the fabric.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. In the present invention, as one of the fiber yarns constituting the fabric, the fiber has a core-sheath single-filament fineness of 2 denier or more containing only an antistatic agent in the core portion and has a fineness of 20% by weight or more. A non-rotationally symmetric single-filament yarn having a denier of 1.5 denier or less and a fineness-mixed yarn containing 5 wt% or more of a non-rotationally symmetrical single-filament fineness of 1.5 denier or less having a substantially straight flat stem portion and a projection is used. This mixed fineness yarn has a fineness of 2 denier or more.
A yarn with a fineness of 1.5 denier or less, for example, mixed or interlaced at the time of spinning or drawing. Due to the presence of the fineness yarn, the yarn has a firm and stiff feel. With the presence of the fineness yarn, a fabric having a good dry feeling, swelling or soft feeling can be obtained.

When the fineness of the thick fine yarn is less than 2 denier, the cross-sectional area of the single yarn is small, so that it is difficult to expect a repulsive force against a lateral force or bending or twisting applied to the single yarn, and the tension and waist are reduced. The fineness of the fabric is reduced and the difference in fineness from the fineness yarn is small. Therefore, in order to obtain a firm and stiff fabric, the single yarn fineness of the thick fine yarn must be 2 denier or more, and particularly preferably in the range of 4 to 7 denier. It is not preferable to construct a fabric using yarns composed of only the fineness yarn, because the fabric lacks a soft feeling and drape property and has a stiff feel.
In the present invention, the single fineness composition of the mixed fineness yarn is such that at least 20% by weight or more of fine denier yarn of 2 denier or more is present, and at the same time, fine denier yarn of 1.5 denier or less is used to impart a soft feeling. It was specified to be present in an amount of at least% by weight.

In the present invention, the composition ratio of the large fineness yarn is 20
If the amount is less than the weight%, the feeling of firmness, waist and swelling is lost, which is not preferable. Also, when the fineness yarn is less than 5% by weight, the effect of the fineness yarn becomes strong and lacks a soft feeling,
It is not preferable because the fabric has a rigid feeling. The mixing ratio of the thick fine yarn and the fine fine yarn is not particularly limited as long as it is within the above range, and can be appropriately changed according to the desired feeling. Further, as a polymer for forming a mixed fineness yarn composed of a large fineness yarn and a fine fineness yarn, for example, polyester, polyamide, or the like can be used, and in order to obtain a softer texture, a polyester filament is used. Weight reduction processing may be performed.

In the present invention, at least the large fineness yarn has a core-sheath structure, an antistatic agent is contained only in the core, and the sheath does not contain the antistatic agent. In order to impart antistatic performance to the fabric, it is preferable to include an antistatic agent in all the single yarns constituting the mixed fineness yarn, but it is preferable to include the antistatic agent in at least a large fineness yarn that easily forms a core-sheath structure. Then, practically sufficient antistatic performance can be imparted to the fabric.

The inclusion of the antistatic agent only in the core portion of the large fineness yarn prevents the antistatic agent from being exposed on the yarn surface, and improves the dyeing properties, the uniformity of the weight loss rate, and the dyeing fastness. It is to make it. Examples of the antistatic agent include polyalkylene glycols, adducts of polyalkylene glycols, various metal salts of organic sulfonic acids, metal salts of phosphonic acids, metal salts of carboxylic acids, and copolymers of these with a polymer to be spun. . The antistatic agent may be blended with the polymer at the stage of polymerizing or spinning the polymer. Among the antistatic agents, polyalkylene glycol or a copolymer of polyalkylene glycol and a polymer to be subjected to spinning is preferably used in consideration of compatibility with the polymer to be used or thermal stability. For example, a polyester obtained by copolymerizing 10 to 50% by weight of a polyalkylene glycol is preferable because it can be mixed with another polymer in a spinning stage and used as a core component.

In order to prevent the antistatic agent located in the core from being eluted by a swelling agent or a solvent contained in washing or dry cleaning, etc., the core is preferably made of an antistatic agent or a copolymer thereof. It is preferable that the antistatic agent is formed of a mixture of the polymer and the sheath, and the antistatic agent is widely mixed and dispersed in the core. Although the mixing ratio of the antistatic agent or the polymer containing the same depends on the performance of the antistatic agent, for example, when a copolymer of polyalkylene glycol and polyester is used as the antistatic agent, the mixing ratio is substantially reduced. When the mixing ratio of the polyalkylene glycol is in the range of 5 to 60% by weight of the fineness yarn, a fabric having an antistatic effect can be obtained.

Next, the fineness yarn constituting the yarn has a substantially linear cross section, such as an L-shape, T-shape, or G-shape as shown in FIGS. It is necessary to have a special flat cross section having a non-rotationally symmetric shape having a flat stem portion and a projection. With such a special flat cross section, even when the single yarns rotate due to the turning force, tension, impact force, etc. acting on the yarns in the fabric manufacturing process, the gaps between the single yarns are formed. As a result, a swelling feeling and a dry feeling can be given to the fabric. The cross-sectional shape of fine fineness yarn is a normal round cross-section or triangular cross-section as conventionally used,
Turning force and tension acting on the yarn in the fabric manufacturing process,
The single yarns adhere to each other due to impact force or the like, so that it is difficult for voids to exist between the single yarns, and it is not possible to give a swelling feeling to the fabric. If this fine fineness yarn is configured with a variety of cross-sectional shapes and single yarn finenesses of two, three, or four,
It is even more preferred because a fabric having an extremely good feel can be obtained.

In the present invention, it is necessary that the above-mentioned mixed fineness yarn is contained in the fabric at least in an amount of 20% by weight or more. If the amount of the mixed fineness yarn is less than 20% by weight, it is not preferable because sufficient antistatic performance cannot be given to the fabric.

In the present invention, a latently crimpable composite filament yarn having a crimp rate of 50% or more after boiling water treatment is used as another one of the fiber yarns constituting the fabric, and 10% by weight or more based on the fabric. To be included. The latently crimpable composite filament yarn develops a latent crimp by heat treatment in the dyeing process, and gives the fabric a feeling of firmness, waist, and resilience. As the latently crimpable composite filament yarn used in the present invention, any kind of crimping property may be used as long as the crimping rate after the boiling water treatment is 50% or more, and preferably two kinds having different heat shrinkage properties are used. It is preferable to use a latently crimpable composite polyester filament in which the components are joined in a side-by-side type. When the crimping rate of the latently crimpable composite filament yarn after the boiling water treatment is less than 50%, even if heat treatment is performed in the dyeing step, the crimping ability is poor, and the fabric has sufficient firmness, waist and rebound resilience. Cannot be given.

The crimp rate after the boiling water treatment used herein is measured by the following method. Double the composite filament wound on a skein five times with a measuring machine, 1/6000 g
/ D under a load of 30 min.
Soak for 0 minutes. Thereafter, it is air-dried, and the length (a) is measured by applying a load of 1/500 g / d. Next, the load is removed, the length (b) is measured by applying a load of 1/20 g / d, and the crimping rate after the boiling water treatment is obtained from the following equation. Crimp rate (%) = (ba) / b × 100

In the present invention, the latently crimpable composite filament yarn needs to be contained in an amount of 10% by weight or more based on the fabric. If the content is less than 10% by weight, it is not possible to impart sufficient firmness, waist and resilience to the fabric.

In the present invention, a fabric such as a woven fabric, a knitted fabric, or a non-woven fabric is formed by using the above-described mixed fineness yarn and the latently crimpable composite filament yarn. Can be arbitrarily adopted.

In the present invention, a fabric using the above-described mixed yarn of different fineness and the latently crimpable composite filament yarn is dyed by a generally used method, and then is treated with a water-repellent agent. Perform a water-repellent treatment. As the water repellent used here, for example,
Examples include a fluorine-based water repellent, a silicon-based water-repellent, and a wax-based water-repellent. It is preferable to use a fluorine-based water repellent from the viewpoint of durability of water repellency, and specifically, it can be polymerized with a fluoroalkyl group-containing polymer such as an acrylate or methacrylate containing a perfluoroalkyl group. Emulsion polymerization of a compound and a compound such as an acrylic acid amide derivative having a copolymerizable radically reactive unsaturated bond, vinyl chloride, or vinylidene chloride using a surfactant and a water-soluble organic solvent as a dispersing aid. And a copolymer obtained by dispersing the copolymer in water.

The amount of the fluorine-based water repellent is not particularly limited, but is preferably 0.2% by weight or more based on the weight of the fiber in order to obtain good water repellency. The water-repellent treatment method using a fluorine-based water-repellent agent may be performed by a general method that is generally used. The cloth is impregnated with the treatment liquid, squeezed with a mangle or the like, and then dried. After that, it may be performed by a known method such as a method of drying. If necessary, curing may be performed using a fluorine-based water repellent together with a suitable crosslinking agent. The present invention
It has the above configuration.

[0023]

According to the present invention, a single-filament yarn having a core fineness of 2 denier or more having a core-sheath structure containing an antistatic agent only in the core portion is used as a core.
A non-rotationally symmetric single yarn fineness of 1.5 wt% or more and having a flat stem portion and a projection having a substantially straight cross section.
Using a mixed fineness yarn containing 5% by weight or more of fineness yarns of denier or less and a latently crimpable composite filament yarn having a crimp rate of 50% or more after boiling water treatment, the mixed fineness yarn is used for fabric. 20% by weight or more, and the latently crimpable composite filament yarn is contained in an amount of 10% by weight or more with respect to the fabric to form a fabric. Is present inside the fiber, so that the fabric permanently retains an antistatic effect of preventing static electricity, which is particularly likely to be generated under low humidity, and the fabric is durable with a fluorine-based water repellent having durability. Because of the water repellent treatment, it also has a water repellency that is durable for washing, and a latent crimp is developed by the heat treatment in the dyeing process, so that a fabric excellent in firmness, waist, and rebound resilience can be obtained. Further, as in the present invention, if the cross-sectional shape of the fineness yarn is a non-rotationally symmetrical shape having a substantially straight flat trunk portion and a projection, the turning force acting on the yarn in the fabric manufacturing process can be improved. It is possible to prevent the gaps between the single yarns from decreasing due to the rolling and the adhesion of the single yarns due to tension, impact force, etc. Good water repellency can be obtained by containing a lot of air.

[0024]

EXAMPLES Next, the method for producing the fabric of the present invention will be described more specifically with reference to examples. The measurement and evaluation of the performance of the fabric in the examples were performed by the following methods. However, the antistatic property and water repellency are as follows:
Wash 10 times with -1027 (103 method) (HL-10)
Thereafter, the measurement was performed on a sample that was air-dried all day and night. (1) Hand feeling The dry feeling, swelling feeling, firmness and waist, soft feeling and rebound resilience of the fabric were relatively evaluated by the following four grades by a sensory test by handling. ◎: Very good ○: Good △: Somewhat poor
×: Bad (2) Antistatic half-life JISL-1094 (Method A) Friction charge voltage JISL-1094 (Method B) (3) Water repellency JISL-1092 (Spray method)

Example 1 Polyethylene terephthalate containing 0.5% by weight of titanium oxide and having a relative viscosity of 1.38 was used as a polymer constituting a sheath portion, and polyethylene glycol having a molecular weight of about 6000 was used as a polymer constituting a core portion. 23% by weight, 5
-A core-sheath hole having a round cross section (0. 0) using a polyethylene terephthalate-based copolyester having a relative viscosity of 1.60 obtained by copolymerizing a sodium sulfoisophthalic acid component at 2 mol%.
When spinning with a spinning spindle equipped with a core-sheath type nozzle having two holes (3 mmφ), the spinning temperature was 285 ° C., the polymer discharge rate at the sheath part was 17 g / min, and the copolyester discharge rate at the core part was 2.8 g / min. The core-sheath structure thick fineness undrawn yarn used in the present invention is spun, and at the same time, the same polyethylene terephthalate as that constituting the sheath portion of the fine fineness yarn is used, and the slit width is 0.12 mm and the slit length is 0.3
The spinning temperature is 295 when spinning with a spinning spindle equipped with a nozzle having a modified cross-section having 20 orifices having an L-shaped cross-section having 20 holes and an angle of 90 ° formed by each slit.
An undrawn yarn having an L-shaped cross section used in the present invention is spun at a temperature of 0 ° C. and a discharge rate of 14.5 g / min, and these two undrawn yarns having different cross-sectional shapes are combined on a take-up roller. At a winding speed of 1400 m / min.

The undrawn yarn wound up by such a method is drawn at a draw ratio of 2.6, a drawing temperature of 85 ° C., and a heat treatment temperature of 165 ° C.
And a fine yarn having a core-sheath structure (mixing ratio: 25%) containing an antistatic agent only in the core of the 4-filament and having a denier of 4 denier, and a single-filament fineness of 1.2 denier and 40
A mixed denier yarn having a denier of 64 denier / 44 filaments used in the present invention, which is composed of a filament having an L-shaped irregular cross section with a fine cross section (a mixing ratio of 75%) was obtained.

Next, 8 mol /% of isophthalic acid and 2,2-bis (4- (2
-Hydroxyethoxy) phenyl) propane 5 mol /%
A polyethylene-terephthalate having an intrinsic viscosity of 0.63 as a first component, and a polyethylene-terephthalate having an intrinsic viscosity of 0.53 as a second component in a side-by-side type;
Composite spinning at a spinning speed of 3250m and a spinning temperature of 285 ° C,
Drawing was performed at a drawing speed of 715 m / min and a draw ratio of 1.50 to obtain a latently crimpable composite filament yarn of 50 denier / 12 filaments. When the crimping ratio of the latently crimpable composite filament yarn after the boiling water treatment was measured, it was 56.2.
%Met. This latently crimpable composite filament yarn was subjected to additional twisting at 1500 T / M in the Z direction, and a vacuum set at 80 ° C. for 45 minutes. A strongly twisted yarn was obtained. Next, the above-described mixed fineness yarn and regular polyester yarn are used for every other warp yarn,
As the weft yarn, the above-described latently crimpable composite filament yarn and the regular polyester yarn were used alternately, and a plain woven fabric having a warp density of 116 yarns / inch weft yarn density of 80 yarns / inch was woven. The mixing ratio of the mixed fineness yarns contained in this fabric was 28.4%, and the mixing ratio of the latently crimpable composite filament yarn was 15.3%.

The above-mentioned woven fabric is put into a circular type liquid jet dyeing machine (manufactured by Hisaka Seisakusho Co., Ltd.), relaxed and scoured at 80 ° C. for 20 minutes according to the following prescription 1, and then dried. Presetting was performed at 170 ° C. for 1 minute using a pin tenter (a heat setter manufactured by Ichikin Industry Co., Ltd.) while avoiding excessive working tension in the direction. Formulation 1 Caustic soda (flakes) 1 g / liter Sunmole FL 1 g / liter (Surfactant, manufactured by Nikka Chemical Co., Ltd.)

Subsequently, using the same liquid jet dyeing machine, a weight reduction process (weight reduction rate of 10.5%) was performed at 100 ° C. for 25 minutes at a concentration of 40 g / liter of caustic soda, and then washed well.
Dyeing was performed at 130 ° C. for 30 minutes according to the following prescription 2. Formulation 2 Miketone Polyester Blue FBL 1% owf (manufactured by Dystar Japan Co., Ltd., disperse dye) Nikka San Salt SN-130 0.5 g / l (manufactured by Nika Chemical Co., Ltd., dispersant) Acetic acid (48%) 0.2cc / liter

Here, it is immersed in a fluorine-based water repellent solution having the following formulation 3 and uniformly squeezed with a mangle at a squeezing ratio of 45%.
After drying at 130 ° C., a finishing set at 170 ° C. for 1 minute was performed to obtain a durable antistatic water-repellent fabric of the present invention. Formulation 3 Asahi Guard LS-317 8% by weight (manufactured by Meisei Chemical Co., Ltd., fluorine-based water repellent) Sumitex Resin M-3 0.3% by weight (manufactured by Sumitomo Chemical Co., Ltd., trimethylolmelamine) Sumitex Axelle Ator ACX 0.3% by weight (manufactured by Sumitomo Chemical Co., Ltd., catalyst for trimethylol melamine) Water 91.4% by weight

For the purpose of comparison with the present invention, the procedure of Example 1 was repeated except that the polyethylene glycol component in the polymer constituting the core portion of the core-sheath fine yarn was omitted. (Comparative Example 1) was obtained.

For comparison with the present invention, the same procedure as in Example 1 was carried out except that the single-filament fineness of the core-sheath structure thick fine thread was 1.5 denier and 10 filaments as shown in Table 1 in Example 1. A processed fabric for comparison (Comparative Example 2) was obtained by the method.

For comparison with the present invention, in Example 1, as shown in Table 1, the single-filament fineness of the core-sheath thick yarn was set to 4 filaments and 2 filaments, and the mixing of the large fineness yarn in the mixed fineness yarn was performed. A processed fabric for comparison (Comparative Example 3) was obtained in the same manner as in Example 1 except that the ratio was 14.3% by weight.

For comparison with the present invention, in Example 1, one latent crimping composite filament yarn was driven into the weft and three regular polyester yarns were driven into the latent crimping composite filament yarn in the woven fabric. A processed woven fabric for comparison (Comparative Example 4) was obtained in the same manner as in Example 1 except that the weight ratio was changed to 7.7% by weight. The composition of the yarns of Example 1 and the comparative woven fabric, and the performance of the woven fabric were measured and evaluated,
The results are shown in Table 1.

Table 1

As is evident from Table 1, the fabric obtained by the method of the present invention has a dry feeling, a swelling feeling, a firmness,
The fabric was very good in waist, softness and elasticity, and at the same time, excellent in washing durability, combined with antistatic properties and water repellency.

Example 2 One of the core-sheath thick yarns constituting the mixed fineness yarn obtained in the above-mentioned Example 1 had a single yarn fineness of 7.6 denier and 4 filaments (mixing ratio: 71.7%). Example 1 except that the other yarn of 42 denier / 44 filament was obtained by replacing the single yarn fineness of the other L-shaped fine yarn with 0.3 denier with 40 filaments (mixing ratio: 28.3%). A durable antistatic water-repellent woven fabric of the present invention was obtained in the same manner as described above. The mixing ratio of the mixed fineness yarns contained in this woven fabric was 20.8%, and the mixing ratio of the latently crimpable composite filament yarn was 16.9%.

For comparison with the present invention, the procedure of Example 2 was repeated except that the cross-sectional shape of the fineness yarn was changed to a round cross-section.
A processed woven fabric for comparison (Comparative Example 5) was obtained in the same manner as described above.

For the purpose of comparison with the present invention, the procedure of Example 2 was repeated except that the fineness of the fine yarn was 0.3 denier, the fineness of the yarn was 4 filaments, and the mixing ratio of the fineness yarn was 3.8% by weight. A processed fabric for comparison (Comparative Example 6) was obtained in the same manner as in Example 2.

For comparison with the present invention, a processed woven fabric for comparison (Comparative Example 7) was prepared in the same manner as in Example 2 except that the fineness of the fine yarn was set to 20 filaments at 2 denier in Example 2. ) Got.

Further, for comparison with the present invention, Example 2 was used.
A processed fabric for comparison (Comparative Example 8) was obtained in the same manner as in this example except that a latently crimpable composite filament yarn having a crimp rate of 40% after the boiling water treatment was used. The composition of the yarn of Example 2 and the woven fabric for comparison and the performance of the woven fabric were measured and evaluated, and the results are shown in Table 2 together.

Table 2

As is clear from Table 2, the cloth obtained by the method of the present invention has a very good dry feeling, swelling feeling, firmness, waist, soft feeling and elasticity as compared with the comparative cloth, and at the same time, has a good washing durability. It was a good fabric having excellent antistatic properties and water repellency.

[0044]

According to the method of the present invention, excellent dry feeling,
A durable antistatic water-repellent cloth having swelling, firmness and waist, excellent softness and elasticity, and excellent washing durability can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a fine-filament yarn having a special flat cross-section having a non-rotationally symmetric shape having a substantially straight flat stem portion and a projection, showing an L-shaped example. .

FIG. 2 is a cross-sectional view showing an example of a fine-filament yarn having a special flat cross section having a non-rotationally symmetric shape having a substantially straight flat stem portion and a projection, showing a T-shaped example. .

FIG. 3 is a cross-sectional view showing an example of a fine-filament yarn having a special flat cross section having a non-rotationally symmetric shape having a substantially straight flat stem portion and a projection, showing a T-shaped example. .

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Claims (1)

[Claims] The present invention relates to a flat trunk portion and a projection portion, each of which has a core-sheath structure containing only an antistatic agent in a core portion and a fine yarn having a fineness of 2 denier or more and a core fineness of 20% by weight or more and has a substantially linear cross section. A non-rotationally symmetric single fiber fine yarn having a fineness of 1.5 denier or less and a mixed fineness yarn having a fineness of 5 wt% or more and a latent crimpable composite having a crimping ratio of 50% or more after boiling water treatment; Using a filament yarn, the mixed fineness yarn is contained in an amount of 20% by weight or more based on the fabric, and the latently crimpable composite filament yarn is included in an amount of 10% by weight or more based on the fabric to form a fabric. A method for producing a durable antistatic water-repellent fabric, comprising performing a water-repellent treatment after dyeing.