JP4818068B2 - Antistatic water repellent fabric and clothing - Google Patents

Description

  The present invention relates to an antistatic and water-repellent woven fabric having antistatic and water repellency, in which a core component is woven using a core-sheath type composite fiber made of antistatic polyester and subjected to water-repellent processing.

Conventionally, in a field where water repellency is required, such as sports clothing and casual clothing, a fabric made of polyester fiber has been treated with a water repellent. On the other hand, a fabric made of polyester fiber or the like generally has a property of easily accumulating static electricity, and may cause discomfort to the wearer, such as clinging to clothing. Thus, it is required to satisfy both functions of water repellency and antistatic property at the same time.
However, the water repellency and the antistatic property are contradictory properties. For example, when the water repellency is imparted, the antistatic property is lost. Conversely, when the antistatic property is imparted, the water repellency is lost.

  As a method for achieving both water repellency and antistatic properties, proposals have been made to impart antistatic properties and water repellency to fabrics by post-processing (see, for example, Patent Document 1). There were problems such as not good and the texture becoming hard. In addition, it has also been proposed to obtain a fabric using a core-sheath type composite fiber whose core component is made of antistatic polyester, and then subject the fabric to water repellent treatment (see, for example, Patent Document 1). There was a problem that the texture was hard.

JP 2006-124879 A JP 2006-104617 A

  The present invention has been made in view of the above-described background, and an object thereof is to provide an antistatic water-repellent fabric and clothing having antistatic properties and water repellency and exhibiting a soft texture.

  As a result of intensive studies to achieve the above-mentioned problems, the present inventors have obtained a fabric using a core-sheath type composite fiber whose core component is made of antistatic polyester, and then subjecting the fabric to a water repellent treatment. When obtaining an antistatic water-repellent woven fabric, the core-sheath-type conjugate fiber is found to have a soft texture of the fabric by using a fiber having a small single yarn fineness and subjected to false twist crimping, Furthermore, the present invention has been completed by intensive studies.

Thus, according to the present invention, “an antistatic water-repellent woven fabric woven using a yarn A made of a core-sheath type composite fiber in which an antistatic polyester is disposed at least in the core component and subjected to a water-repellent finish” The core-sheath composite fiber has a single yarn fineness of 1.2 dtex or less, the yarn A is subjected to false twist crimping , and the woven fabric is subjected to calendering. "An anti-static water-repellent fabric".

  In that case, the antistatic polyester which forms the core component contains (a) 0.2 to 30 parts by weight of a polyoxyalkylene polyether and (b) an organic ionic compound in an amount of 0.1 to 100 parts by weight of the aromatic polyester. It is preferable that it is antistatic polyester containing 05-10 weight part. Moreover, it is preferable that the sheath component of the said core-sheath-type composite fiber consists of aromatic polyester. Moreover, it is preferable that the crimp ratio of the yarn A subjected to the false twist crimping process is in the range of 3 to 30%.

In the antistatic water-repellent woven fabric of the present invention, the woven fabric is preferably a woven fabric having a cover factor (CF) calculated from the following formula of 1500 to 3000.
CF = (DWp / 1.1) ^1/2 × MWp + (DWf / 1.1) ^1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm).

Moreover , it is preferable that a frictional voltage is 2000V or less. Further, the water repellency is preferably tertiary or higher. The air permeability of the fabric is preferably 10 cc / cm ² · sec or less.
Moreover, according to this invention, the clothing which uses the said antistatic water-repellent fabric is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the antistatic water-repellent fabric and clothing which have antistatic property and water repellency, and show a soft texture are provided.

Hereinafter, embodiments of the present invention will be described in detail.
First, in the present invention, the yarn A is composed of a core-sheath type composite fiber in which antistatic polyester is disposed as a core component.

  The antistatic polyester contains (a) 0.2 to 30 parts by weight of a polyoxyalkylene polyether and (b) 0.05 to 10 parts by weight of an organic ionic compound with respect to 100 parts by weight of the aromatic polyester. It is preferable that the antistatic polyester is obtained because excellent antistatic properties are obtained.

  Here, the aromatic polyester is a polymer obtained by a reaction of a difunctional aromatic carboxylic acid or an ester-forming derivative thereof and a diol or an ester-forming derivative thereof.

  Examples of the bifunctional aromatic carboxylic acid herein include terephthalic acid, isophthalic acid, orthophthalic acid, 1,5-naphthalenedicarboxylic acid, 2,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 4,4′- Biphenyl dicarboxylic acid, 3,3'-biphenyl dicarboxylic acid, 4,4'-biphenyl ether dicarboxylic acid, 4,4'-biphenylmethane dicarboxylic acid, 4,4'-biphenyl sulfone dicarboxylic acid, 4,4'-biphenyl isopropyl Redene dicarboxylic acid, 1,2-bis (phenoxy) ethane-4,4'-dicarboxylic acid, 2,5-anthracene dicarboxylic acid, 2,6-anthracene dicarboxylic acid, 4,4'-p-phenylenedicarboxylic acid, 2 , 5-Pyridinedicarboxylic acid, β-hydroxyethoxybenzoic acid, p-oxybenzoic acid Etc. can be mentioned, in particular, terephthalic acid is preferred.

  Two or more of these difunctional aromatic carboxylic acids may be used in combination. In addition, in a small amount, these bifunctional aromatic carboxylic acids and bifunctional aliphatic carboxylic acids such as adipic acid, azelaic acid, sebacic acid and dodecanedioic acid, and bifunctional alicyclic carboxylic acids such as cyclohexanedicarboxylic acid are used. An acid, 5-sodium sulfoisophthalic acid, etc. can be used alone or in combination of two or more.

  Examples of diol compounds include ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, neopentyl glycol, aliphatic diols such as 2-methyl-1,3-propanediol, diethylene glycol and trimethylene glycol, and 1,4-cyclohexane. Preferable examples include alicyclic diols such as dimethanol and mixtures thereof. If the amount is small, polyoxyalkylene glycol having both ends or one end unblocked can be copolymerized with these diol compounds.

  Furthermore, polycarboxylic acids such as trimellitic acid and pyromellitic acid, and polyols such as glycerin, trimethylolpropane, and pentaerythritol can be used as long as the polyester is substantially linear.

  Specific preferred aromatic polyesters include polyethylene terephthalate, polybutylene terephthalate, polyhexylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, polyethylene-1,2-bis (phenoxy) ethane-4,4'-dicarboxylate. In addition, there may be mentioned copolyesters such as polyethylene isophthalate / terephthalate, polybutylene terephthalate / isophthalate, polybutylene terephthalate / decane dicarboxylate, and the like. Of these, polyethylene terephthalate and polybutylene terephthalate having a good balance of mechanical properties and moldability are particularly preferable.

  Such aromatic polyester is synthesized by any method. For example, for polyethylene terephthalate, terephthalic acid and ethylene glycol are directly esterified, or a lower alkyl ester of terephthalic acid such as dimethyl terephthalate is transesterified with ethylene glycol, or terephthalic acid and ethylene oxide are reacted. In the first stage reaction to produce a glycol ester of terephthalic acid and / or a low polymer thereof, and then the product is heated under reduced pressure to undergo a polycondensation reaction until the desired degree of polymerization is reached. It is easily produced by a stage reaction.

  Next, (a) the polyoxyalkylene polyether may be a polyoxyalkylene glycol composed of a single oxyalkylene unit, as long as it is substantially insoluble in polyester, but two or more oxyalkylenes may be used. It may be a copolymerized polyoxyalkylene glycol composed of units. Specific examples of such polyoxyalkylene polyether include polyoxyethylene glycol having a molecular weight of 4000 or more, polyoxypropylene glycol having a molecular weight of 1000 or more, polyoxytetramethylene glycol, ethylene oxide having a molecular weight of 2000 or more, and a propylene oxide copolymer. Polymers, trimethylolpropane ethylene oxide adducts having a molecular weight of 4000 or more, nonylphenol ethylene oxide adducts having a molecular weight of 3000 or more, and compounds in which a substituted ethylene oxide having 6 or more carbon atoms is added to these terminal OH groups. However, polyoxyethylene glycol having a molecular weight of 10,000 to 100,000 and an alkyl group having 8 to 40 carbon atoms at both ends of the polyoxyethylene glycol having a molecular weight of 5000 to 16000. Compound conversion of ethylene oxide are added are preferred.

  The blending amount of the polyoxyalkylene polyether compound is preferably in the range of 0.2 to 30 parts by weight with respect to 100 parts by weight of the aromatic polyester. When the amount is less than 0.2 parts by weight, the hydrophilicity is insufficient and sufficient antistatic property may not be exhibited. On the other hand, even if the amount exceeds 30 parts by weight, the antistatic effect is no longer recognized, but the mechanical properties of the resulting composition are deteriorated, and the polyether is easily bleed out, so that it is melt molded. There is a possibility that the insertability of the chip into the ruder sometimes decreases and the molding stability also deteriorates.

  Next, as the (b) organic ionic compound, for example, sulfonic acid metal salts and sulfonic acid quaternary phosphonium salts represented by the following general formulas (I) and (II) can be mentioned as preferable ones.

RSO ₃ M (I)
In the formula, R represents an alkyl group having 3 to 30 carbon atoms or an aryl group having 7 to 40 carbon atoms, and M represents an alkali metal or an alkaline earth metal. In the above formula (I), when R is an alkyl group, the alkyl group may be linear or have a branched side chain. M is an alkali metal such as Na, K, or Li, or an alkaline earth metal such as Mg or Ca. Among these, Li, Na, and K are preferable. Such sulfonic acid metal salts may be used alone or in combination of two or more. Preferred examples include sodium stearyl sulfonate, sodium octyl sulfonate, sodium dodecyl sulfonate, a mixture of sodium alkyl sulfonate having an average of 14 carbon atoms, a mixture of sodium dodecyl benzene sulfonate, sodium dodecyl benzene sulfonate (hard type) Soft type), lithium dodecylbenzenesulfonate (hard type, soft type), magnesium dodecylbenzenesulfonate (hard type, soft type) and the like.

RSO ₃ PR ₁ R ₂ R ₃ R ₄ (II)
In the formula, R is the same as the definition of R in the above formula (I), and R ₁ , R ₂ , R ₃ and R ₄ are preferably an alkyl group or an aryl group, particularly a lower alkyl group, a phenyl group or a benzyl group. . Such sulfonic acid quaternary phosphonium salts may be used alone or in combination of two or more. Preferred examples include tetrabutylphosphonium alkyl sulfonate having an average of 14 carbon atoms, tetraphenyl phosphonium alkyl sulfonate having an average of 14 carbon atoms, and butyl alkyl sulfonate having an average of 14 carbon atoms. Triphenylphosphonium, tetrabutylphosphonium dodecylbenzenesulfonate (hard type, soft type), tetraphenylphosphonium dodecylbenzenesulfonate (hard type, soft type), benzyltriphenylphosphonium dodecylbenzenesulfonate (hard type, soft type), etc. Can give.

  Such organic ionic compounds may be used alone or in combination of two or more thereof, and the blending amount thereof is preferably in the range of 0.05 to 10 parts by weight with respect to 100 parts by weight of the aromatic polyester. If the amount is less than 0.05 parts by weight, the effect of improving antistatic properties is small. If the amount exceeds 10 parts by weight, the mechanical properties of the composition are impaired, and the ionic compound also tends to bleed out. As a result, the insertability of the chip of the chip decreases, and the molding stability also deteriorates.

  As the sheath component of the core-sheath composite fiber, the aromatic polyester is suitable. When a matting agent is included in the aromatic polyester, it is preferably 10 wt% or less based on the weight of the polyester. If the matting agent exceeds 10 wt%, the spinnability of the core-sheath composite fiber may be deteriorated. The core component and / or the sheath component of the core-sheath type composite fiber may be added with an anti-coloring agent, a heat stabilizer, a flame retardant, a fluorescent brightening agent, or a coloring agent within the range not impairing the object of the present invention. An antibacterial agent, a negative ion generator and the like may be added.

  Furthermore, the area ratio of the core component to the sheath component is preferably in the range of (core component: sheath component) 10:90 to 65:35. When the area ratio of the core component is smaller than 10:90, the expression of the antistatic performance by the core component becomes insufficient, and when larger than 65:35, when the alkali weight loss of 10% or more is applied, There is a possibility that the antistatic polyester in the core part is partially eluted and the antistatic performance is lowered.

In the present invention, the yarn A is composed of the core-sheath type composite fiber. At that time, the single yarn fineness of the yarn A needs to be 1.2 dtex or less (preferably 0.1 to 1.2 dtex). When the single yarn fineness is larger than 1.2 dtex, the texture of the antistatic water-repellent fabric becomes hard, which is not preferable. The cross-sectional shape of the single yarn fiber is preferably a round cross-sectional shape and a concentric core-sheath structure. The total fineness and the number of filaments of the yarn A are preferably in the range of a total fineness of 33 to 140 dtex and a filament number of 50 to 150 in terms of softness of the texture.
Such yarn A needs to be subjected to false twist crimping. When the false twist crimping process is not performed, the texture of the antistatic water repellent fabric becomes hard, which is not preferable.

  The yarn A can be produced, for example, by the following production method. That is, when melt-spinning the core-sheath type undrawn yarn as the parent yarn, the ratio of the discharge speed to the take-up speed at the time of spinning (take-off speed / discharge speed, hereinafter referred to as draft) is in the range of 100 to 800 Stable antistatic performance can be obtained by false twisting the undrawn yarn taken up in step 1. When the draft is 100 or less, the antistatic performance due to the core component becomes insufficient. When the draft is 800 or more, the antistatic performance is exhibited, but the spinnability may be lowered. Accordingly, the nozzle discharge hole diameter and the spinning speed may be set as appropriate within this range. However, when melt spinning in the range of Φ0.1 to 0.3 mm, spinning speed 2000 to 4500 m / min, particularly 2500 to 3500 m / min, It is preferable because it can be obtained easily and efficiently.

The false twisting method of the undrawn yarn (undrawn multifilament) is not particularly limited. For example, (1) false twisting tool: triaxial friction disk type, (2) false twisting temperature: 170 to 300 ° C, (3 ) Processing magnification: 1.4 to 2.4, (4) Number of false twists: (15000-35000) / (false twist yarn fineness (dtex)) ^1/2 times / m, more preferably (20,000 to 30000) / ( The false twisted yarn fineness (dtex)) is preferably ^1/2 times / m. At that time, the air entanglement treatment may be performed in a separate process from the drawing false twisting process, but it is preferable to perform the air entanglement process immediately before the drawing false twisting process by installing an interlace nozzle in the drawing false twisting apparatus. This suppresses the occurrence of fuzz and can have a positive effect on handling.Furthermore, by applying air entanglement to the yarn after heat setting false twisting, the mixed fiber entanglement is perfectly uniformed, and the uniform effect in the yarn length direction It has antistatic properties and can express a high-class feeling. Next, the undrawn yarn subjected to the entanglement treatment is subjected to, for example, a drawing false twisting machine equipped with a two-stage heater to obtain a false twisted yarn having crimps.

  The crimp rate of the false twist crimped yarn thus obtained is preferably in the range of 3 to 30%. If the crimp rate is less than 3%, the texture of the antistatic water-repellent fabric may be hard. Conversely, if the crimp rate is greater than 30%, the antistatic property may be reduced.

  The antistatic water-repellent fabric of the present invention is woven using at least the yarn A. The weight ratio of the yarn A contained in the antistatic water repellent fabric is preferably 30% by weight or more. In order to obtain excellent antistatic properties, it is preferable that the yarn A is disposed on all warp yarns or weft yarns. When other yarns of the woven fabric are included, such other yarns are preferably the same yarns as the yarn A except that they are made of ordinary polyester. The woven structure of the woven fabric is not particularly limited, and may be woven by a normal method. For example, Mihara texture such as plain weave, twill weave and satin weave, change texture, single double texture such as warp double weave and weft double weave, warp velvet and the like are exemplified. The number of layers may be a single layer or a multilayer of two or more layers. The weaving method may be a normal weaving method using a normal loom (for example, a normal water jet loom or an air jet loom).

The antistatic water-repellent fabric of the present invention is obtained by subjecting such fabric to a water-repellent finish. Here, the water repellent finish may be a normal one. For example, the methods described in Japanese Patent No. 3133227 and Japanese Patent Publication No. 4-5786 are suitable. That is, a commercially available fluorine-based water repellent (for example, Asahi Guard LS-317, manufactured by Asahi Glass Co., Ltd.) is used as the water repellent, and the concentration of the water repellent is adjusted by mixing melamine resin and catalyst as necessary. In this method, the surface of the woven fabric is treated with the processing agent at a pickup rate of about 50 to 90% with a processing agent of about 3 to 15% by weight. Examples of the method for treating the surface of the woven fabric with the processing agent include a pad method and a spray method. Among them, the pad method is most preferable for allowing the processing agent to penetrate into the woven fabric.
In addition, the said pick-up rate is the weight ratio (%) with respect to the textile fabric (before processing agent provision) weight of a processing agent.

  As long as the object of the present invention is not impaired, before or after water-repellent processing, conventional alkali weight loss processing, dyeing finishing processing, raising processing, ultraviolet shielding or antibacterial agent, deodorant, insect repellent Various processings that impart functions such as an agent, a phosphorescent agent, a retroreflective agent, and a negative ion generator may be additionally applied.

In the woven fabric thus obtained, a woven fabric having a cover factor (CF) calculated by the following formula of 1500 to 3000 is preferable because it has low air permeability and can be suitably used as sports clothing. Furthermore, it is preferable that the calendering is performed because of low air permeability. At that time, the air permeability is preferably 10 cc / cm ² · sec or less.
CF = (DWp / 1.1) ^1/2 × MWp + (DWf / 1.1) ^1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm).

  The antistatic water-repellent fabric of the present invention exhibits excellent antistatic properties because it includes the yarn A made of core-sheath type composite fiber in which antistatic polyester is disposed as a core component. The antistatic property is preferably 2000 V or less in terms of frictional voltage. Moreover, since the antistatic water-repellent fabric of the present invention is water-repellent, it exhibits excellent water repellency. The water repellency is preferably 3 or higher. Furthermore, since the yarn A contained in the antistatic water-repellent fabric of the present invention has a small single yarn fineness and has been subjected to false twist crimping, the antistatic water-repellent fabric exhibits a soft texture.

  Next, the apparel of the present invention is an apparel using the above-mentioned antistatic water-repellent fabric. Such clothing uses the above-mentioned antistatic and water-repellent fabric, so that it has antistatic and water-repellent properties and has a soft texture.

Next, although the Example and comparative example of this invention are explained in full detail, this invention is not limited by these. In addition, each measurement item in an Example was measured with the following method.
(1) Intrinsic viscosity Dissolved in ortho-chlorophenol and measured at 35 ° C using an Ubbelohde viscosity tube.
(2) Birefringence index It calculated | required from the retardation of the polarization observed on the surface of a fiber using an optical microscope and a compensator.
(3) Crimp rate A false twisted yarn sample was wound on a cassette frame by applying a tension of 0.044 cN / dtex to produce a cassette of about 3300 dtex. Two loads of 0.0177 cN / dtex and 0.177 cN / dtex were applied to one end of the cassette, and the length S0 (cm) after 1 minute was measured. Subsequently, it was treated in boiling water at 100 ° C. for 20 minutes with the load of 0.177 cN / dtex removed. Remove the load of 0.0177 cN / dtex after boiling water treatment, let it dry naturally for 24 hours, load 0.0177 cN / dtex and 0.177 cN / dtex again, and adjust the length after 1 minute. Measurement was made S1 (cm). Next, the load of 0.177 cN / dtex was removed, the length after 1 minute was measured and set to S2, and the crimp rate was calculated by the following formula, and expressed as the average value of 10 measurements.
Crimp rate (%) = [(S1-S2) / S0] × 100
(4) Strength and elongation of false twisted yarn Measured according to JIS L-1013-75.
(5) Texture Three testers evaluated the following three levels by sensory evaluation. Level 3: Soft and supple feel. Second grade: Slightly soft, but feels repellent. First grade: Rough touch or hard touch.
(6) Friction voltage measurement method The test piece is rubbed with a friction cloth while rotating the test piece, and the generated voltage is measured. Conforms to L1094 electrification test method B (friction band voltage measurement method).
(7) Air permeability Measured according to JIS L1096-8.27.1A method.
(8) Water repellency: Measured according to JIS L1092-6.2 (spray method).

[Example 1]
100 parts of dimethyl terephthalate, 60 parts of ethylene glycol, 0.06 part of calcium acetate monohydrate (0.066 mol% with respect to dimethyl terephthalate) and 0.013 part of cobalt acetate tetrahydrate as a color adjuster (terephthalic acid) 0.01 mol% with respect to dimethyl) was charged into a transesterification reactor, and the reaction product was heated from 140 ° C. to 220 ° C. over 4 hours under a nitrogen gas atmosphere. The ester exchange reaction was carried out while distilling out. After completion of the transesterification reaction, 0.058 parts of trimethyl phosphate (0.080 mol% with respect to dimethyl terephthalate) as a stabilizer and 0.024 parts of dimethylpolysiloxane as an antifoaming agent were added to the reaction mixture. Next, after 10 minutes, 0.041 part of antimony trioxide (0.027 mol% with respect to dimethyl terephthalate) was added to the reaction mixture, and the temperature was raised to 240 ° C. while distilling off excess ethylene glycol. Thereafter, the reaction mixture was transferred to a polymerization reactor. Next, after reducing the pressure from 760 mmHg to 1 mmHg over 1 hour and 40 minutes and raising the temperature from 240 ° C. to 280 ° C. to cause the polycondensation reaction,

（ただし、ｊは１８〜２８の整数で平均２１、Ｐは平均値として１００、ｍは平均値として５である）で表される水不溶性ポリオキシエチレン系ポリエーテルを４部及びドデシルベンゼンスルホン酸ナトリウムを２部、真空下で添加し、さらに２４０分間重縮合反応せしめ、次いで酸化防止剤としてチバカイギー社製イルガノックス１０１０を０．４部真空下で添加し、その後さらに３０分間重縮合反応を行なった。重合反応工程で、制電剤を添加し、芯成分用ポリマー（チップ）を得た。このポリマーの固有粘度は０．６５７、軟化点２５８℃、得られたチップを常法により乾燥した。

(Wherein j is an integer of 18 to 28 and average is 21, P is 100 as an average value, and m is 5 as an average value) 4 parts of water-insoluble polyoxyethylene-based polyether and dodecylbenzenesulfonic acid 2 parts of sodium were added under vacuum and allowed to undergo a polycondensation reaction for an additional 240 minutes, followed by addition of 0.4 parts of Ciba Kaigie Irganox 1010 as an antioxidant under a vacuum followed by a further polycondensation reaction for 30 minutes. It was. In the polymerization reaction step, an antistatic agent was added to obtain a core component polymer (chip). This polymer had an intrinsic viscosity of 0.657, a softening point of 258 ° C., and the obtained chip was dried by a conventional method.

On the other hand, a polymer (inherent viscosity 0.60) made of ordinary polyethylene terephthalate was obtained by a conventional method.
Next, the dried polymer was melted in a usual manner in a spinning facility and introduced into a spin pack through a spin block. The spinneret with 72 circular discharge holes incorporated in the spin pack is cooled and solidified by cooling air from a normal crossflow type spinning cylinder, and is converged as one yarn while applying a spinning oil. A polyester undrawn yarn of 140 dtex / 72 filament having a birefringence of 0.035 was obtained at a speed of 3000 m / min.

The polyester unstretched yarn is applied to Teijin Seiki's 216 Tajiken HTS-15V, and the entanglement degree is 60 nL / min at a flow rate of 60 nL / min while passing through an interlace nozzle having a 1.8 mm hole diameter in the front and rear stages. Air entanglement is performed so as to be 50 pieces / m, the draw ratio is 1.60, the first heater (non-contact type) temperature is set to 250 ° C., and a urethane disk having a diameter of 60 mm and a thickness of 9 mm is used as a false twist disk. Stretch false twist so that the number of false twists x (false twist fineness (dtex)) ^1/2 is around 26000 at a running angle of 43 degrees, wound into a cheese shape at a speed of 800 m / min, and 84 dtex / 72 filaments (average A false twist crimped yarn (yarn A, crimp rate 15%, strength 3.8 cN / dtex) made of antistatic composite fiber having a single yarn fineness of 1.17 dtex) was obtained.

  On the other hand, a polyethylene terephthalate false-twisted crimped yarn 84 dtex / 72 filament was obtained in the same manner as above except that a polymer (inherent viscosity 0.60) made of ordinary polyethylene terephthalate was used alone.

Next, using a normal water jet loom, the polyethylene terephthalate false twisted crimped yarn 84 dtex / 72 filament was used as a warp, while the antistatic false twisted crimped yarn 84 dtex / 72 filament (yarn A) was wefted. After obtaining a living machine in a plain tissue, and then dyeing in a conventional dyeing process, pad with the following treatment liquid (processing agent), squeezed at a pickup rate of 70%, and dried at 130 ° C. for 3 minutes After heat treatment at 170 ° C. for 45 seconds, normal calendering was performed to obtain an antistatic water-repellent fabric (cover factor 1992).
Next, sports clothing (windbreaker) was obtained using the antistatic water-repellent fabric.

<Processing agent composition>
・ Fluorine-based water repellent 10.0wt%
(Asahi Guard LS-317, manufactured by Asahi Glass Co., Ltd.)
・ Melamine resin 0.3wt%
(Sumitomo Chemical Co., Ltd., Sumtex Resin M-3)
・ Catalyst 0.3wt%
(Sumitomo Chemical Co., Ltd., Smithex Accelerator ACX)
・ Water 89.4wt%

  In the obtained antistatic water-repellent fabric, the initial water repellency was grade 5, the water repellency after 20 washings was grade 3.5, excellent in water repellency, and the texture was soft (grade 3). In addition, the frictional voltage after 20 washings had very excellent antistatic properties such as 740V and 1020V.

[Comparative Example 1]
In Example 1, it implemented similarly to Example 1 except having changed the antistatic false twist crimped yarn into 84 dtex / 36 filament.
The obtained woven fabric had excellent frictional voltage of 690 V and weft 980 V after 20 washings, but the texture was hard and not soft (first grade).

[Comparative Example 2]
Example 1 was the same as Example 1 except that the antistatic composite fiber was not subjected to false twist crimping. The obtained woven fabric had very excellent frictional band voltage after passing 20 times of 920 V and weft 1020 V, but the texture was hard and not soft (first grade).

  According to the present invention, an antistatic water-repellent fabric having antistatic properties and water repellency and exhibiting a soft texture and a garment using the antistatic water-repellent fabric can be obtained, and its industrial value is extremely high. It ’s big.

Claims (9)

An anti-static and water-repellent woven fabric woven using a yarn A composed of a core-sheath type composite fiber in which at least a core component is provided with an anti-static polyester, and having a water-repellent finish, the core-sheath composite fiber The antistatic water-repellent woven fabric, wherein the single yarn fineness is 1.2 dtex or less, the yarn A is subjected to false twist crimping , and the fabric is calendered .   The antistatic polyester forming the core component contains (a) 0.2 to 30 parts by weight of a polyoxyalkylene polyether and (b) 0.05 to 10 parts of an organic ionic compound with respect to 100 parts by weight of the aromatic polyester. The antistatic water-repellent weave knitted fabric according to claim 1, which is an antistatic polyester comprising parts by weight.   The antistatic water-repellent fabric according to claim 1 or 2, wherein a sheath component of the core-sheath composite fiber is made of an aromatic polyester.   The antistatic water-repellent woven fabric according to any one of claims 1 to 3, wherein a crimp ratio of the yarn A subjected to the false twist crimping process is in a range of 3 to 30%. The antistatic water-repellent woven fabric according to any one of claims 1 to 4, wherein the woven fabric is a woven fabric having a cover factor (CF) calculated by the following formula of 1500 to 3000.
CF = (DWp / 1.1) ^1/2 × MWp + (DWf / 1.1) ^1/2 × MWf
However, DWp is the total warp fineness (dtex), MWp is the warp weave density (main / 2.54 cm), DWf is the total weft fineness (dtex), and MWf is the weft weave density (main / 2.54 cm). The antistatic water-repellent fabric according to any one of claims 1 to 5, wherein the frictional voltage is 2000 V or less. The antistatic water-repellent woven fabric according to any one of claims 1 to 6, wherein the water repellency is tertiary or higher. The air permeability of the fabric is 10cc / cm ² -It is below sec, in any one of Claims 1-7
Antistatic water repellent fabric. The clothing using the antistatic water-repellent fabric according to any one of claims 1 to 8.