JP6739490B2 - Textile manufacturing method and raw machine - Google Patents

Description

The present invention relates to a method for producing a woven fabric and a raw fabric.

Textiles containing cotton have many advantages such as excellent hygroscopicity and water absorbency, excellent pleasant touch and comfort, difficult to be charged, and of natural origin, and thus widely used for textile products such as clothing. There is. For example, in antistatic applications, it is used in combination with conductive yarn from the viewpoint of more reliably preventing charging under low humidity.

On the other hand, a woven fabric containing cotton is likely to have wrinkles caused by washing. Therefore, from the viewpoint of imparting wash-and-wear properties (characteristics that cause less wrinkles due to washing and drying and can be worn without ironing; hereinafter referred to as "W&W property"), a fabric is used with a crosslinking agent. It has been carried out to improve wrinkle resistance by chemically crosslinking cellulose molecules in each other.

In the weaving process of the woven fabric containing the above-mentioned cotton, sizing has been conventionally performed in order to prevent the warp from being fluffed by friction with a heald or a reed (lead) and causing cutting or the like. There is. When performing sizing, in addition to the preparation of a sizing agent, a sizing step, a drying step, and a sizing operation after weaving are performed, which requires a lot of equipment, cost, and labor. In addition, if the desizing after weaving is insufficient, the fabric may be partially hardened, and the remaining sizing agent may react with the cross-linking agent to be hardened to cause discomfort.

With respect to the above problems, a method of weaving using a warp yarn in a non-paste state without sizing has been proposed (for example, Patent Document 1 and Patent Document 2). However, when the conductive yarn is used as the warp, the friction between the conductive yarn and the heald or the reed (lead) is severe, and problems such as fluffing and cutting increase, so that weaving in a non-paste state is still difficult. is there.

JP 62-110938 A JP 62-110950 A

A main object of the present invention is to provide a method for weaving a woven fabric using conductive yarns as warp yarns, which does not require sizing.

According to one embodiment of the present invention, there is provided a method for manufacturing a woven fabric, wherein a conductive yarn and a non-conductive yarn are used as warp yarns to weave the woven fabric with a shuttleless loom. In the manufacturing method, the amount of glue attached to the warp is 2.0% by mass or less, the non-conductive yarn contains cotton fiber in a content of 5% by mass to 99% by mass, and the non-conductive yarn has 2% by mass. It includes a plied yarn in which two or more single yarns are aligned and twisted.
In one embodiment, the warp tension during weaving is adjusted so as to satisfy the following relational expressions (1) and (2).
T=(W/S)×K (1)
0.5≦K≦1.5 (2)
(In the formula, T represents the warp tension at the time of weaving (the unit is (N)), S represents the average value of the British cotton count of the entire warp, W represents the total number of warp, and K represents the coefficient.
In one embodiment, the plied yarn is a twin yarn or triplets.
In one embodiment, the elongation of the non-conductive yarn is 0.5% to 20.0%.
In one embodiment, the number of reeds of the warp is 4 to 8. In one embodiment, the conductive yarn is a core span obtained by coating a conductive core yarn with a sheath yarn containing short fibers. It is a yarn.
In one embodiment, the warp includes the conductive yarns arranged at intervals of 0.2 threads/2.54 cm to 5.0 threads/2.54 cm.
According to another aspect of the present invention, conductive yarns and non-conductive yarns are included as warp yarns, the amount of glue attached to the warp yarns is 2.0% by mass or less, and the non-conductive yarns contain 5% by mass to cotton fibers. There is provided a greige machine having a content of 99% by mass, wherein the non-conductive yarn includes a plied yarn in which two or more single yarns are aligned and twisted.
In one embodiment, the plied yarn is a twin yarn or triplets.
In one embodiment, the conductive yarn is a core-spun yarn in which a conductive core yarn is covered with a sheath yarn containing short fibers.

According to the method for producing a woven fabric of the present invention, even when the conductive yarn is used as the warp yarn, the woven fabric can be woven with high weavability without gluing the warp yarn.

It is the schematic explaining the structure of a loom. It is a schematic diagram explaining composition of a reed.

[A. Fabric manufacturing method]
The method for producing a woven fabric of the present invention is a method for weaving a woven fabric using a shuttleless loom. In the method for producing a woven fabric according to one embodiment of the present invention, conductive yarn and non-conductive yarn are used as warp yarns, the amount of glue attached to the warp yarns is 2.0% by mass or less, and the non-conductive yarn yarns are cotton fibers. In a content of 5% by mass to 99% by mass, and the non-conductive yarn includes a plied yarn in which two or more single yarns are aligned and twisted.

A-1. Warp As described above, in the method for manufacturing a fabric according to one embodiment of the present invention, the conductive yarn and the non-conductive yarn are used as the warp. The use of the conductive thread suppresses the generation of static electricity and promotes the disappearance of the electric charge, and as a result, the charging can be prevented.

As the conductive yarn, for example, a yarn made of a conductive fiber such as a metal fiber or a carbon fiber, a composite yarn of the conductive fiber and the non-conductive fiber, a conductive material such as a metal, a metal oxide, carbon black or a conductive polymer. Examples thereof include a composite yarn in which a conductive substance is mixed in a non-conductive yarn, and a yarn in which the conductive substance is attached to the surface of the non-conductive yarn by a chemical treatment such as coating or electroless plating. Further, a composite yarn of such a conductive yarn and a non-conductive yarn (a mixed yarn, a mixed twisted yarn, a covering yarn having a core-sheath structure, etc.) can be used.

In one embodiment, a core having conductive filaments in which conductive fine particles such as carbon black are dispersed in synthetic fibers such as polyester is used as a core yarn, and short fibers are spun so as to be wound around the core. Spun yarn (CSY) is used as the conductive yarn. Such CSY has the advantages of low cost and low skin irritation while retaining high conductivity and durability. Further, by using the same kind of fiber as the non-conductive yarn used together for the sheath yarn, the hue and texture of CSY can be made similar to that of the non-conductive yarn. On the other hand, in such a CSY, the sheath yarn (short fibers) on the surface is fluffed by rubbing in a non-paste state, and the core yarn is exposed to easily cause yarn breakage. Therefore, when such CSY is used as a warp, sizing has conventionally been indispensable. However, according to the manufacturing method of the present invention, weaving can be performed with excellent weaving properties even in a non-sizing state. it can.

The fineness of the conductive yarn may be the same as or different from that of the non-conductive yarn. In one embodiment, the fineness of the conductive yarn is about 20% to 100% of the fineness of the non-conductive yarn. When a yarn thicker than the non-conductive yarn is used, the conductive yarn is exposed to the surface of the fabric to a large extent, which may deteriorate the aesthetics of clothing.

The non-conductive yarn includes a plied yarn in which two or more single yarns are aligned and twisted. The non-conductive yarn is preferably a plied yarn in which 2 to 4 single yarns are drawn and aligned and more preferably twin yarns or triplets. Since such a plied yarn has a small twist as a whole yarn, it is difficult to roll (shift of warp in the weft direction, deviation) even if it is largely moved up and down by a heddle, and as a result, warp yarns or warp yarns and reed yarns Wings and friction can be reduced. Moreover, since the distance between the warp yarns can be kept uniform, a woven fabric with high aesthetics can be obtained.

The two or more single yarns forming the plied yarn may be spun yarns or filament yarns. Further, yarns containing different types of fibers (blended yarns, mixed yarns) may be used, or yarns containing fibers of the same type may be used. Typically, at least one single yarn of the two or more single yarns forming the plied yarn includes cotton fiber.

Examples of other fibers that may be included in the single yarn constituting the twisted yarn include hemp, rayon fiber (viscose rayon, copper ammonia rayon), acetate fiber (diacetate, triacetate), polyester fiber (polyethylene terephthalate, PTT, and the like). PBT, etc.), polyamide fiber, polyethylene fiber, polyimide fiber, polylactic acid fiber and the like. These fibers may be used alone or in combination of two or more.

The non-conductive yarn may further include a yarn (single yarn, covering yarn, etc.) other than the above-mentioned plied yarn, depending on the use of the fabric.

The content of cotton fibers in the non-conductive yarn is 5% by mass to 99% by mass, preferably 10% by mass to 80% by mass, and more preferably 20% by mass to 60% by mass. When the non-conductive yarn contains the cotton fiber in the content, a woven fabric excellent in hygroscopicity, water absorption, comfort, etc. can be obtained. Moreover, W&W property can be given to a woven fabric by performing a crosslinking process. The content of cotton fibers in the non-conductive yarn can be determined according to JIS L 1030-2.

The fineness of the non-conductive yarn is, for example, 10 to 80 in English cotton count, preferably 10 to 70 count, and more preferably 10 to 60 count. When the fineness of the non-conductive yarn is within the range, it is possible to prevent the friction between the warp yarns or between the warp yarns and the reed wing to become severe.

The non-conductive yarn has, for example, an elongation of 0.5% to 20.0%, preferably 5.0% to 15.0%. If the elongation of the non-conductive yarn is within the range, weaving can be suitably performed even when a certain tension is applied to the warp yarn. The elongation can be measured according to JIS L1095 (general spun yarn test method).

The use ratio of the conductive yarn and the non-conductive yarn can be appropriately set depending on the use of the woven fabric and the like. The larger the amount of the conductive yarn used, the more the antistatic effect increases, but since the conductive yarn generally has high rigidity, fluffing or cutting of the non-conductive yarn can be induced by rubbing. In addition, the conductive yarn is often colored black or gray, and is more expensive, which may cause problems in terms of texture, aesthetics, cost, and the like. Therefore, it is preferable to arrange the conductive yarns in the non-conductive yarns at regular intervals. For example, at the time of weaving, the conductive yarn is 0.2 to 5.0, preferably 0.5 to 5.0, and more preferably 1.0 to 1 inch (2.54 cm) in width. It can be arranged at a rate of 4.5.

The amount of glue attached to the warp is 2.0% by mass or less, preferably 0% by mass to 1.0% by mass, more preferably 0% by mass to 0.5% by mass, and further preferably 0% by mass. In a general weaving method, warp yarns are used which are sized so that the amount of glue adhered is 6% by mass to 10% by mass. According to the production method of the present invention, the amount of glue adhered is small or non-sized. Excellent weavability can be achieved even with warp yarns in a state. In the present specification, non-paste weaving includes not only the case where the amount of glue attached to the warp is 0 mass% but also the case where the amount of glue attached to the warp is 2.0 mass% or less. There is no limitation on the sizing agent used, and known sizing agents such as polyvinyl alcohol, starch and acrylic resins can be used. The amount of glue attached can be measured as follows.
[Measurement method of amount of glue (remaining amount of glue)]
The measurement is performed according to the JIS L 1095 glue content measuring method. Specifically, the weight difference between before and after the treatment is determined as the amount of residual glue by the following methods B and C, and the value obtained by adding them (the amount of residual glue by the method B + the amount of residual glue by the method C) is determined as the amount of adhered glue. ..
Method B (Diastase method) Applicable to starch paste. The sample was placed in a beaker and subjected to hot water treatment for 10 minutes, then immersed in a 2 to 3% diastase solution (bath ratio 1:50, temperature 50 to 60° C.) specified by the Japanese Pharmacopoeia for 1 hour, and further immersed in water. After boiling for 1 hour, wash with warm water.
Method C (sodium carbonate method) Applicable to acrylic resin type paste and PVA paste. The sample was placed in a beaker, treated with hot water for 10 minutes, and further immersed in a solution of sodium carbonate 5 g/L and nonionic surfactant 2 g/L (bath ratio 1:100, temperature 80 to 90° C.) for 1 hour with stirring. After that, wash thoroughly with warm water.

A-2. Weft Any suitable yarn can be used as the weft, depending on the use of the fabric. Weft threads typically include non-conductive threads, but may or may not include conductive threads. When the weft includes a conductive yarn, the same description as in the section A-1 can be applied to the conductive yarn. In this case, the number of conductive threads is 0.2/inch (2.54 cm) to 5.0/inch, preferably 0.5/inch to 5.0/inch, and more preferably 1.0. /Inch-4.5 lines/inch can be arranged.

The non-conductive yarn can be in any suitable form, depending on the application of the fabric and the like. Specific examples thereof include forms such as a single yarn, a plied yarn (for example, a twin yarn or a triple yarn), and a covering yarn.

Fibers included in the non-conductive yarn include cotton, hemp, rayon fiber (viscose rayon, copper ammonia rayon), acetate fiber (diacetate, triacetate), polyester fiber (polyethylene terephthalate, PTT, PBT, etc.), polyamide fiber, Examples thereof include polyethylene fiber, polyimide fiber, polylactic acid fiber and the like. These fibers may be used alone or in combination of two or more. Two or more kinds of fibers may be contained in the non-conductive yarn as separate yarns, or may be included in the non-conductive yarn as one yarn in the form of mixed spun yarn, mixed fiber yarn, mixed twist yarn, covering yarn, etc. It may be.

The fineness and the elongation of the non-conductive yarn can be approximately the same as the fineness and the elongation of the non-conductive yarn used as the warp. By using the non-conductive yarns having the same fineness and elongation as the warp yarns and the weft yarns, it is possible to obtain a woven fabric having excellent aesthetics.

The amount of glue attached to the weft is, for example, 2.0% by mass or less, preferably 0% by mass to 1.0% by mass, more preferably 0% by mass to 0.5% by mass, and further preferably 0% by mass. ..

The content of cotton fibers in the weft is, for example, 5% by mass to 99% by mass, preferably 10% by mass to 80% by mass, and more preferably 20% by mass to 60% by mass. When the weft contains the cotton fiber in the content, a woven fabric excellent in hygroscopicity, water absorption, comfort and the like can be obtained. Moreover, W&W property can be given to a woven fabric by performing a crosslinking process. The content of cotton fibers in the weft can be determined according to JIS L 1030-2.

In one embodiment, the weft yarn comprises the same yarn as the non-conductive yarn used as the warp yarn. When the weft and the warp include the same yarn, it is possible to obtain a woven fabric excellent in aesthetics.

A-3. Weaving FIG. 1 is a schematic view illustrating an example of a method of weaving a woven fabric using a shuttleless loom. The shuttleless loom 100 includes a plurality of healds 10 for dividing a warp yarn into upper and lower parts and opening openings for inserting a weft yarn, a weft insertion nozzle 20 as a weft yarn inserting means, a warp yarn arranged according to a weaving width, and inserted. And a reed 30 for driving the set weft thread. In the shuttleless loom 100, the warp thread 40 passed through the heddle of the heddle 10 according to the organization chart is divided into upper and lower parts by the vertical movement of the heddle 10 to form an opening 50 (opening motion), and the weft insertion nozzle 20 opens the opening. The weft yarn 60 is inserted from one end to the other end 50 of the fabric 50 so as to intersect with the warp yarn 40 (weft insertion motion), and the inserted weft yarn 60 is driven into the front of the weave by the reeds 30 (repulsion motion), whereby the fabric 200 Is woven.

Examples of the shuttleless loom include a gripper type loom such as a rapier loom or a fluid jet loom such as an air jet loom and a water jet loom.

The rotation number of the gripper type loom is, for example, 300 rpm to 500 rpm, preferably 350 rpm to 500 rpm, and more preferably 400 rpm to 500 rpm. The rotation speed of the fluid jet loom is, for example, 400 rpm to 1000 rpm, preferably 500 rpm to 1000 rpm, and more preferably 550 rpm to 950 rpm. With such a rotation speed, a highly aesthetic fabric can be obtained with excellent productivity.

Generally, when the rotation speed of the loom is lowered, the friction between the yarns and the friction between the yarn and the metal are reduced, and the fluffing is reduced, so that the condition of the opening formed by the vertical movement of the warp is secured (opening). Is in a clean open state). As a result, warp breakage is reduced and weavability is improved, while weaving cost is increased. Therefore, it is preferable to control the tension of the warp threads to suppress the fluffing due to the rubbing within an allowable range while maintaining a constant rotation speed. The warp tension during weaving is generally 100 N to 600 N, preferably 150 N to 500 N, more preferably 200 N to 400 N.

In one embodiment of the present invention, the warp tension during weaving is adjusted so as to satisfy the following relational expressions (1) and (2). As a result, it is possible to maintain sufficient weavability while maintaining the same number of rotations of the loom as that of the paste weaving.
T=(W/S)×K (1)
0.5≦K≦1.5 (2)
(In the formula, T represents the warp tension (N) at the time of weaving, S represents the average value of British cotton counts of the entire warp, W represents the total number of warp yarns, and K represents the coefficient.)

When the above K value is less than 0.5, the condition of the vertically moved opening is not uniform, and, for example, weft breakage occurs frequently, and the weft is conspicuous due to partial variations in yarn density, resulting in poor aesthetics. Such problems may occur. If the K value exceeds 1.5, warp yarns in a non-paste state or a small amount of glue adhered may not be able to withstand the tension and may break, resulting in difficulty in weaving. The K value is preferably 0.6 to 1.2, more preferably 0.7 to 1.0. The average value "S" of the British cotton count of the entire warp specified by the relational expression (1) is a weighted average value of the fineness of the entire warp. Specifically, as warp yarns, 1,000 conductive yarns whose English cotton count is 50 count and non-conductive yarns whose English count is 20 count (non-conductive yarn which is English count 40 count twin yarn) 4000 When a book is used, S=(50×1000+20×4000)/(1000+4000)=26.

The warp tension at the time of weaving is controlled, for example, by controlling the feeding speed of the warp or the winding speed of the fabric according to the tension difference between the warp tension actually measured by the warp tension sensor and the preset warp tension. Can be done by controlling. Since many modern looms have a microcomputer control technology introduced therein, tension control can be easily performed by operating a key on a control panel of the loom. In addition, the warp tension is mechanically adjusted by moving the warp line of the loom up and down, adjusting the height of the upper thread reaching point and the lower thread reaching point of the warp divided by the heddle, and adjusting the opening amount. be able to.

The heddle has a function of pulling out the warp from the roll-shaped beam and moving the warp up and down one by one to divide the warp. The number of healds depends on the weave structure of the target fabric. The number of heddles is, for example, 2 to 12, and a plain-woven fabric can be produced with two heddles. When the number of heddle increases, the movement of the warp becomes complicated, and the movement of a part of the warp becomes large, so that stronger tension can be generated. Therefore, in the non-paste weaving, problems such as a decrease in weavability as the number of healds increases and a non-uniform woven fabric due to rolling of warp yarns and deterioration of aesthetics may occur. On the other hand, even when the number of healds is increased by using a twisted-twisted yarn as the warp and further by controlling the warp tension so as to satisfy the relational expressions (1) and (2) above, It is possible to suppress mutual rubbing and rubbing between the metal and the thread, and to suppress rolling. As a result, it is possible to obtain a woven fabric having excellent aesthetics with good weavability even in the case of non-paste weaving.

The reed has a function of determining the weaving width and the warp density of the woven fabric and driving the weft yarns to the front. As shown in FIG. 2, the reed 30 typically includes a plurality of thin plate-shaped reed blades 32 arranged at regular intervals like comb teeth, and a frame 34 for fixing the reed blades 32. It is a member composed of.

The number of reeds (the number of warp threads passed between two adjacent reed blades) is preferably 4 to 8, and more preferably 4 to 6. In conventional non-paste weaving, by setting the number of reeds to one, it is possible to suppress the entanglement of fluffs between the warps during weaving, thereby smoothly inserting the wefts into the opening and weaving at high speed. Is known (Patent Document 2). Moreover, in the case of a paste weaving, the number of reeds is usually 2 to 3. On the other hand, in the present invention, by setting the number of reeds to be 4 to 8, weavability in non-paste weaving can be improved.

Although the reason why the above effect is obtained is not clear, there is a possibility that the freedom of movement of the warp passing through the reed is increased, and as a result, the friction between the warp and the metal is greatly reduced. Also, as a non-conductive yarn, a plied yarn obtained by aligning and twisting single yarns is used, and as a result of less twist remaining in the yarns, even if the movement of the warp becomes large, rolling (deviation in the weft direction of the warp, It is considered that unevenness prevents the distance between the warps from becoming non-uniform, and as a result, a woven fabric with high aesthetics can be obtained. Further, since the twisted yarn has less fluff than the single yarn, the opening can be judged well, and as a result, the weavability can be improved. If the number of reeds exceeds 8, the problem of rubbing can be alleviated further, but the distance between the warps becomes non-uniform due to the rolling of the warps, which deteriorates the aesthetics of the fabric (deterioration of the texture of the fabric). ), problems such as weft breakage may occur.

The count of the reed (the number of reeds arranged at a predetermined interval) can be appropriately set according to the desired width of the fabric and the number of warp yarns. For example, when a non-paste weaving is performed on a cloth having the same number of warp threads and the same width as the non-paste weaving, if the number of reeds in the weaving weaving is two and the number of reeds is 118 /2 inch, the non-paste weaving is The number of reeds can be set to 4 by using a reed with 59 reeds/2 inches.

The woven structure is not particularly limited, and any suitable woven structure can be adopted. As described above, the conductive yarn is often colored black or gray, and also has high rigidity, so from the viewpoint of texture, appearance, grade, etc., the conductive yarn is on one surface of the woven fabric, It may be arranged to be barely exposed or to be less exposed and to be more exposed on the other surface. Specifically, when the woven fabric is applied to a textile product, it may be arranged such that the degree of exposure of the conductive yarn on the outside (front surface) of the textile product is small and the degree of exposure on the inside (back surface side) thereof is large.

A woven fabric having surfaces with different exposure levels of conductive yarns can be obtained by, for example, forming a warp and/or weft double woven structure and disposing a large number of conductive yarns on one side surface. Further, in a plain weave, a twill weave, etc., by adopting a variable structure in which the number of floating conductive yarns on one surface is greater than the number of floating conductive yarns on the other surface, the conductive yarns can be applied to the one surface. A highly arranged fabric can be obtained.

The warp density during weaving is, for example, 60 yarns/inch (2.54 cm) to 200 yarns/inch, preferably 80 yarns/inch to 180 yarns/inch, and more preferably 100 yarns/inch to 160 yarns/inch. The total number of warp yarns may vary depending on the weave width, but may be, for example, 2,700 to 14,000 yarns. Note that the weave width can generally range from 45 inches to 71 inches.

The weft density during weaving is, for example, 30 yarns/inch to 150 yarns/inch, preferably 40 yarns/inch to 100 yarns/inch, and more preferably 50 yarns/inch to 80 yarns/inch.

A-4. Other treatments The method for producing the woven fabric of the present invention may be applied to any woven fabric, if necessary, such as mercerizing, liquid ammonium treatment, crosslinking, desizing, refining, bleaching, washing and softening. It may further include performing a different treatment.

The cross-linking treatment can be typically performed by adhering a cross-linking treatment liquid containing a cross-linking agent or the like to the fabric to be treated, and then subjecting it to heat treatment. The heat treatment may be performed while applying tension to the fabric so that the desired weave density is obtained. Here, the cross-linking agent means a compound that reacts with a hydroxyl group of cellulose to form a cross-linkage bond between cellulose fibers. The cross-linking treatment is a treatment known to those skilled in the art, and a detailed description thereof will be omitted, but the description in, for example, JP-A-2013-096022 can be referred to. Since the woven fabric woven by the production method of the present invention contains cotton, the W&W property can be improved by performing the cross-linking treatment.

The desizing treatment is performed by any appropriate method. For example, the sizing agent containing polyvinyl alcohol can be removed by treatment with warm water at 60° C. to 80° C. for 30 minutes to 60 minutes. Moreover, the starch-containing sizing agent can be removed by treating with an enzyme desizing agent such as amylase for 30 minutes to 60 minutes with hot water at 80°C to 85°C. Furthermore, the acrylic paste can be removed by treating with 0.5% to 1.0% caustic soda for about 30 to 60 minutes under the temperature condition of 60° C. or higher.

A-5. Woven fabric The paste content (residual paste amount) of the woven fabric woven by the production method of the present invention is preferably 0.5% by mass or less, more preferably 0% by mass to 0.3% by mass.

The cotton fiber content of the woven fabric is, for example, 5% by mass to 99% by mass, preferably 10% by mass to 80% by mass, and more preferably 20% by mass to 60% by mass.

The W&W property of the above-mentioned woven fabric is preferably 2.5 grade or higher, more preferably 3.0 grade or higher, and further preferably 3.3 grade or higher.

The triboelectric charge amount of the woven fabric is preferably 7 μC/m ² or less. The triboelectric charge amount can be determined according to JIS T 8118.

In one embodiment, the surface resistance of the exposed surface of the woven fabric in which a large amount of the conductive yarn is exposed on one side is about the same value as the surface resistance of the conductive yarn. The surface resistance of the woven fabric can be determined by pressing the conductive yarn portion on one surface of the woven fabric with two electrode plates and measuring the electrical resistance of the woven fabric surface between the two electrodes. it can.

The above-mentioned woven fabric is a clothing product such as antistatic work clothes, uniforms, lab coats, etc. for workers who work in an environment where a fire or an explosion may occur or workers who handle electronic parts that dislike electrostatic charging; carpets, cartes. It is preferably used for interior textile products such as upholstery, textile products for industrial materials such as hats and bags, and the like. The triboelectric charge amount of a clothing product produced using the above-mentioned fabric is preferably 0.6 μC/wear or less.

When applying a woven fabric with a large amount of exposed conductive threads to one side of a garment product, design the body and sleeves so that the side with a large amount of exposed conductive threads is on the inside or back of the garment. Is preferred. In addition, the inside of the collar (the part that comes into contact with the skin), the inside of the cuffs (the part that comes into contact with the skin), the inside of the hem of the upper garment (the part that comes into contact with the undergarment), and the outside of the waist cloth of the undergarment (front side). In addition, the garment can be manufactured so that the surface having a large amount of exposed conductive threads is arranged.

In the clothing product having the above-mentioned configuration, since the cloth having a high conductive yarn density is used for the collar and the cuff, which are often in contact with the skin, it is easy to remove the charged static electricity through the human body. In particular, when anti-static shoes are used, it is possible to ground, which is very effective. In addition, by using the surface with a large amount of exposed conductive threads on the inside or back of the clothing product, conductive threads will not be applied from the outside of the clothing product (upper and lower body parts, sleeves, collars, cuffs, hem of outerwear). Almost invisible, improving the dignity and aesthetics of clothing products.

[B. Raw machine]
According to another aspect of the present invention, conductive yarns and non-conductive yarns are included as warp yarns, the amount of glue attached to the warp yarns is 2.0% by mass or less, and the non-conductive yarns contain 5% by mass to cotton fibers. A greige machine is provided, which comprises 99% by mass of the non-conductive yarn, and the non-conductive yarn includes a plied yarn in which two or more single yarns are aligned and twisted. Here, the greige means a woven fabric that has been woven up and removed from the looms, and is a fabric that has not been subjected to desizing.

The paste content of the greige is 2.0% by mass or less, preferably 0% by mass to 1.0% by mass, more preferably 0% by mass to 0.5% by mass, and further preferably 0% by mass. ..

The cotton fiber content of the greige is, for example, 5% by mass to 99% by mass, preferably 10% by mass to 80% by mass, more preferably 20% by mass to 60% by mass.

The greige can be obtained by the weaving described in the method for manufacturing a woven fabric according to the item A. Therefore, with respect to the warp and the weft constituting the greige, the explanation of the warp and the weft described in the section A can be similarly applied.

Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples. The measurement methods and evaluation methods used in the examples are as follows. Further, “%” means mass% unless otherwise specified.

[Weaving]
The number of stops (times/hour) reflected in the available weaving time was measured.

[Textile W&W evaluation test]
Wrinkles after washing according to JIS L-1096 Washing was performed according to the method A. After dehydration, tumble drying was performed. The test score was 1. The W&W property was evaluated by comparing it with a replica (defined by AATCC TEST METHOD 124) as an average value of 3 judges. The evaluation standards were evaluated in 0.1 grade increments. For example, in the case of grade 3.0 to grade 3.5, it was set as 3.1 grade, 3.2 grade, 3.3 grade, 3.4 grade, and 3.5 grade. Generally, if the W&W property is 2.5 or higher, the wrinkles of the clothing product will be less, and if it is 3.0 or higher, the wrinkles will be less noticeable, and if it is 3.3 or higher, it will be ironed. Even if you do not do it, wrinkles will be less noticeable.

[Measurement of yarn elongation]
It was measured according to JIS L1095. Specifically, under the conditions of a temperature of 23° C. and a humidity of 65 RH%, the yarn to be measured is clamped at an interval of a test length of 500 mm and an initial tension of 50 cN by using “USER TENSORAPID 3”, and a pulling speed of 500 mm/min. The elongation at the time of elongation was measured. The measurement was carried out 60 times, and the average was taken as the elongation.

[Example 1]
(Weaving)
As a warp, a conductive polyester fiber having a fineness of 22T (a conductive thread in which carbon is kneaded, a product name "Carbon Bertron B31", manufactured by KB Seiren Co., Ltd.) is used as a core thread, and a cotton fiber is used as a sheath thread around the core thread. Wound composite yarn (twist number 21.2 times/inch, surface resistance 10 ⁸ Ω/cm, English cotton count 45 count) and English cotton count 34 count twin yarn (non-conductive yarn, 35% cotton) Polyester 65%, elongation 5.5%, total fineness 17th) were used. In addition, as the weft yarn, English-type cotton count 34 count twin yarn (35% cotton 65% polyester, elongation 5.5%, total fineness 17 count) was used. An air jet loom (manufactured by Toyota Automatic Loom Co., Ltd., model “JAT-710”) was used as the loom.
Prepared so that the conductive yarns are arranged in the warp direction at intervals of 84.7mm without applying a sizing agent to the warp yarns, and the reed count is 37 blades/2 inches, the number of reeds is 6/feather, the warp tension is 330N. Under the weaving conditions of a rotation speed of 550 rpm, a fabric having a weaving width of 63 inches and a 2/1 twill design was woven at a weaving density of 113 warps/2.54 cm and 54 wefts/2.54 cm. As a result, a woven fabric (grease) in which the conductive yarn was exposed only on one surface was obtained. The weaving property was 0.1 times/stop/time.
Further, under the above weaving conditions, the total number of warp yarns was 7,126, and the average value of British warp count of all warp yarns was 17, so the K value of formula (1) was 0.8. (Rounded to two decimal places).

(Scouring, bleaching, washing with water)
The obtained fabric was scoured (after being washed with hot water at 90° C. for 1 minute, immersed in an aqueous solution of 1.5% by mass of sodium persulfate and 2.0% by weight of sodium hydroxide, squeezed with a mangle, and then stored in a refrigerator. Retained for 30 minutes under the condition of 90°C saturated steam), bleached (immersed in 1.2% by mass sodium chlorite solution and squeezed with mangle), and then stored in the chamber under the condition of 90°C saturated steam for 30 minutes Retention), washing with water (treatment with water at 60° C. for 1 minute to remove residual chemicals), and drying.

(Mercerized)
Then, as a mercerizing process, it was immersed in a 20% by mass aqueous sodium hydroxide solution at 20° C. for 10 seconds, squeezed with a mangle and then washed with hot water, neutralized with an acid, washed with water and dried. Further, the woven fabric was immersed in liquid ammonia for about 2 seconds, washed with water and dried.

(Crosslinking treatment)
Next, the fabric is subjected to a cross-linking treatment liquid (dimethylol dihydroxyethylene urea as a cross-linking agent (solid content concentration 60 mass%) 12.0 parts by mass, and a magnesium chloride aqueous solution having a solid content concentration of 20 mass% as a catalyst 2.4 parts by mass, DIC Corporation product name "Finetex FC-KP" 2.0 parts by mass as formalin catcher agent, DIC Corporation product name "Finetex PE-140-E" 1.5 parts by mass as softener , And manufactured by Nichika Chemical Co., Ltd., dipped in a padder provided with 2.0 parts by mass of product name "AMC-800E", and padded with a mangle (weight of cross-linking treatment liquid contained in the fabric/before applying cross-linking treatment liquid) The fabric was squeezed to have a weight of 100×65) of 65%, and then subjected to a crosslinking reaction under the conditions of a pin tenter set at 155° C. for 4 minutes to obtain a finished fabric for a uniform.

(Texture)
The resulting fabric had a finished width of 155 cm and a cotton fiber content of 35%. The tensile strength in the weft direction was 28.0 N, the tear strength was 1850 cN, the tensile strength in the warp direction was 45.0 N, and the tear strength was 2250 cN. The W&W property was 3.4 grade.

(Clothing products)
The finished woven fabric was shaped into a predetermined size and sewn with a thread to fabricate a uniform upper garment.

[Example 2]
(Weaving)
As the warp, a conductive polyester fiber having a fineness of 22T (a conductive yarn in which fine particle carbon of aluminum silicate and calcium silicate is kneaded, product name “White Carbon Bertron B68”, manufactured by KB Seiren Co., Ltd.) is used as a core yarn, A composite yarn in which cotton fiber is wound around a core yarn as a sheath yarn (twist number 21.2 times/inch, surface resistance 10 ⁸ Ω/cm, English cotton count 34th) and English cotton count 45th Twin yarn (35% cotton 65% polyester, elongation 5.5%, total fineness 22.5 count) was used. In addition, as the weft, an English-style cotton count 45 count twin yarn (35% cotton 65% polyester, elongation 5.5%, total fineness 22.5 count) was used. An air jet loom (manufactured by Toyota Automatic Loom Co., Ltd., model “JAT-710”) was used as the loom.
Prepare the conductive yarns so that they are arranged in the warp direction at intervals of 10.2 mm without applying a sizing agent to the warp yarns. Under the weaving conditions of a rotation speed of 550 rpm, a woven fabric having a weaving width of 63 inches and a 2/2 twill structure was woven at a weaving density of 130 warps/2.54 cm and 65 wefts/2.54 cm. The weaving property was 0.2 times/stop/hour.
Further, under the above weaving conditions, the total number of warp yarns was 8268, and the average value of the British cotton count of the entire warp yarn was 22.5 count. Therefore, the K value of the formula (1) was 0.8. It was (rounded to two decimal places).

(Additional processing)
In the same manner as in Example 1, the obtained fabric was subjected to scouring, bleaching, washing with water, mercerizing and crosslinking.

(Texture)
The resulting fabric had a finished width of 155 cm and a cotton fiber content of 35%. The tensile strength in the weft direction was 31.0 N, the tear strength was 2100 cN, the tensile strength in the warp direction was 39.5 N, and the tear strength was 3500 cN. The W&W property was 3.4 grade.

(Clothing products)
The finished woven fabric was shaped into a predetermined size and sewn with a thread to fabricate a uniform upper garment.

[Example 3]
(Weaving)
Same as Example 1 except that PVA117 (polyvinyl alcohol) 0.5% and Maconol TS-365 (surfactant) 0.3% were used as the sizing agent for the warp and sizing was performed at a pad-on rate of 85%. Then, the woven fabric was obtained. The amount of glue attached to the warp was 0.43% by mass. The weaving property was less than 0.1 times/stop/hour.

(Additional processing)
After washing with hot water at 90°C for 1 minute at the scouring stage, desizing (after washing with hot water at 90°C for 1 minute, as a surfactant, manufactured by Nissei Kasei Co., Ltd., product name "Solgin SPD-H" 0.2 Mass% 80° C. liquid for 30 minutes) and water washing (60° C. water for 1 minute to remove residual chemicals) in this order, and then bleaching, washing, mercerizing as in Example 1. It was processed and crosslinked.

(Texture)
The resulting fabric had a finished width of 155 cm and a cotton fiber content of 35%. The tensile strength in the weft direction was 28.5 N, the tear strength was 1750 cN, the tensile strength in the warp direction was 40.0 N, and the tear strength was 2100 cN. The W&W property was 3.4 grade.

(Clothing products)
The finished woven fabric was shaped into a predetermined size and sewn with a thread to fabricate a uniform upper garment.

[Example 4]
The weaving property (weaving machine) was woven in the same manner as in Example 1 except that the tension of the warp during weaving was set to 250 N, and the weaving property was 5.5 times/stop/hour. The K value of the formula (1) was 0.6 (rounded to the second decimal place). In addition, the obtained woven fabric (grease) had a texture defect.

[Example 5]
A weave (woven fabric) was woven in the same manner as in Example 1 except that the tension of the warp during weaving was set to 590 N. The weaving property was 6.0 times/stop/hour. The K value of the formula (1) was 1.4 (rounded to the second decimal place). In addition, the obtained woven fabric (grease) had a texture defect.

[Example 6]
When the (greasing machine) was woven in the same manner as in Example 1 except that the number of reeds during weaving was set to 3, the weaving property was about 20 times/stop/hour.

[Comparative Example 1]
As the warp, a conductive polyester fiber having a fineness of 22T (a conductive yarn in which fine particle carbon of aluminum silicate and calcium silicate is kneaded, product name "White Carbon Bertron B68", manufactured by KB Seiren Co., Ltd.) is used as a core yarn, and A composite yarn in which cotton fibers are wound around a core yarn as a sheath yarn (twist number 21.2 times/inch, surface resistance 10 ⁸ Ω/cm, English cotton count 34th) and English cotton count 34th A single yarn (35% cotton 65% polyester, elongation 5.5%) was used. Further, as the weft yarn, a British-style cotton count 34 count single yarn (35% cotton 65% polyester, elongation 5.5%) was used. An air jet loom (manufactured by Toyota Automatic Loom Co., Ltd., model “JAT-710”) was used as the loom.
Prepare the conductive yarns so that they are arranged in the warp direction at intervals of 9.8mm without applying a sizing agent to the warp yarns. Reed count is 51/2 inches, the number of reeds is 4/wing, and the warp tension is 290N. Under a weaving condition of a rotation speed of 550 rpm, a woven fabric (woven fabric) having a weaving width of 63 inches and a plain weave structure was woven at a weaving density of 103.6 warps/2.54 cm and 65 wefts/2.54 cm. The weaving property was 35 times/stop/hour. The surface shape of the obtained woven fabric (grease) had many spots.
Further, under the above weaving conditions, the total number of warp yarns was 6,690, and the average value of the British cotton count of the entire warp yarn was 34th count. Therefore, the K value of the formula (1) was 1.5. (Rounded to two decimal places).

[Comparative example 2]
A weaving fabric (raw fabric) was woven in the same manner as in Comparative Example 1 except that the warp tension at the time of weaving was set to 95 N. The weavability was 40 times/stop/time (not only due to warp breakage but also due to weft breakage). There was also a stop). The K value of the formula (1) was 0.48.

Table 1 shows the weaving conditions and weavability of the above Examples and Comparative Examples.

INDUSTRIAL APPLICABILITY The weaving method of the present invention can be suitably used for manufacturing a woven fabric using warp yarns in a non-sized state.

10 heddle 20 weft insertion nozzle 30 reed 40 warp 50 opening 60 weft 100 shuttleless loom 200 woven fabric

Claims (10)

Using a conductive yarn and a non-conductive yarn as warp, weaving the fabric by a shuttleless loom, a method of manufacturing a fabric,
The amount of glue attached to the warp is 2.0% by mass or less,
The non-conductive yarn contains cotton fibers in a content of 5% by mass to 99% by mass,
The manufacturing method, wherein the non-conductive yarn includes a plied yarn in which two or more single yarns are aligned and twisted. The manufacturing method according to claim 1, wherein the warp tension during weaving is adjusted so as to satisfy the following relational expressions (1) and (2).
T=(W/S)×K (1)
0.5≦K≦1.5 (2)
(In the formula, T represents the warp tension (N) at the time of weaving, S represents the average value of the British cotton count of the entire warp, W represents the total number of warp yarns, and K represents the coefficient.) The manufacturing method according to claim 1, wherein the plied yarn is a twin yarn or a triple yarn. The method according to any one of claims 1 to 3, wherein the non-conductive yarn has an elongation of 0.5% to 20.0%. The manufacturing method according to any one of claims 1 to 4, wherein the number of reeds of the warp is 4 to 8. The manufacturing method according to claim 1, wherein the conductive yarn is a core spun yarn in which a conductive core yarn is covered with a sheath yarn containing short fibers. The manufacturing method according to any one of claims 1 to 6, wherein the warp yarns include the conductive yarns arranged at intervals of 0.2 yarns/2.54 cm to 5.0 yarns/2.54 cm. Including conductive yarn and non-conductive yarn as warp yarn,
The amount of glue attached to the warp is 2.0% by mass or less,
The non-conductive yarn contains cotton fibers in a content of 5% by mass to 99% by mass,
A greige machine, wherein the non-conductive yarn includes a plied yarn in which two or more single yarns are aligned and twisted. 9. The weaving machine according to claim 8, wherein the plied yarn is a twin yarn or a triple yarn. The raw material according to claim 8 or 9, wherein the conductive yarn is a core-spun yarn in which a conductive core yarn is covered with a sheath yarn containing short fibers.