Antistatic woven fabric and antistatic garment

Abstract

To provide antistatic woven fabric and antistatic garment, which are well-balanced in sweat absorbing property, quick drying property, good feeling of wearing, and wrinkle resistance.SOLUTION: An antistatic woven fabric 1 contains conductive yarns 2a, 3a and non-conductive yarns 2b, 3b and has the conductive yarns 2a, 3a arranged at intervals in warps and wefts. The conductive yarn 2a arranged in at least the warp is a core-sheath conjugate conductive yarn. The core section is a yarn containing polyester fibers and cellulose fibers, and the sheath section is the conductive yarn. A garment is one containing the antistatic woven fabric. It is preferable that the non-conductive yarn 2b of the warp is a mixed yarn of polyester fibers and cellulose fibers. The conductive yarn 3a and the non-conductive yarn 3b of the weft may contain polyester stretch fiber yarns.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an antistatic fabric and antistatic clothing suitable for work clothes, uniforms, and the like.

Background Art

[0002] Conductive clothing has been used to prevent electrostatic dust collection in workplaces and clean rooms where electrostatic charge is an obstacle to components and chemicals. Conductive clothing has conductive yarns woven into the fabric for electrostatic countermeasures. For example, conductive yarns are woven in stripes or grids at regular intervals to prevent electrostatic dust collection by neutralizing static electricity through corona discharge. In recent years, as a requirement characteristic of electrostatic management, the surface resistance value of conductive clothing has been specified in IEC (International Electrotechnical Commission) 61340-5-1 and 5-2, and surface conductivity across the entire clothing is required. Patent Document 1 proposes a fabric using a yarn obtained by double covering a polyester filament yarn with a conductive yarn and a yarn obtained by single covering a polyester filament yarn with a conductive yarn. Patent Document 2 proposes a uniform fabric using a double covering yarn in which a polyethylene terephthalate yarn is disposed as the core and a polybutylene terephthalate conductive yarn is disposed as the sheath.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, conventional antistatic fabrics have problems in any of sweat absorbency, quick drying property, wearing comfort, and wrinkle resistance, and improvement has been demanded.

[0005] In order to solve the above problems, the present invention provides an antistatic fabric and antistatic clothing with a balanced performance in terms of sweat absorption, quick drying, comfort, and wrinkle resistance.

Means for Solving the Problems

[0006] The antistatic fabric of the present invention includes conductive yarns and non-conductive yarns, and is an antistatic fabric in which the conductive yarns are arranged at intervals in the warp and weft yarns. At least the conductive yarns arranged in the warp yarns are core-sheath composite conductive yarns, the core part is a yarn containing polyester fibers and cellulose fibers, and the sheath part is a conductive yarn.

[0007] The clothing of the present invention is clothing including the above antistatic fabric.

Effects of the Invention

[0008] The present invention is an antistatic fabric including conductive yarns and non-conductive yarns, and the conductive yarns are arranged at intervals in the warp and weft yarns. At least the conductive yarns arranged in the warp yarns are core-sheath composite conductive yarns, the core part is a yarn containing polyester fibers and cellulose fibers, and the sheath part is a conductive yarn. Thus, it is possible to provide an antistatic fabric and antistatic clothing with a balanced performance in terms of sweat absorption, quick drying, comfort, and wrinkle resistance.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0010] The present invention is an antistatic fabric including conductive yarns and non-conductive yarns, with the conductive yarns arranged at intervals in the warp and weft yarns. Non-conductive yarns are arranged between the conductive yarns. At least the conductive yarns arranged in the warp are core-sheath composite conductive yarns, where the core part is a yarn containing polyester fiber and cellulose fiber, and the sheath part is a conductive yarn. The core part is preferably a blended yarn of polyester and cotton in particular. Since the sheath part is a conductive yarn, the antistatic effect is high. Examples of the conductive yarn used for the sheath part include "Kuracarb" manufactured by Kuraray Co., Ltd., "Beltron" manufactured by KB Seiren Co., Ltd., etc., and a core-sheath type composite conductive yarn with the conductive component arranged on the surface side is preferred. As the non-conductive yarns, synthetic fibers and natural fibers can be used, that is, filament yarns and spun yarns such as polyester and nylon, and blended yarns of staple fibers such as polyester and nylon and rayon staple fibers, cotton fibers, etc.

[0011] The non-conductive yarn in the warp is preferably a blended yarn of polyester fiber and cellulose fiber. Cellulose fiber has good sweat absorbency and wearing comfort, and polyester fiber has good quick-drying property, wearing comfort, and wrinkle resistance. Cotton is preferred as the cellulose fiber.

[0012] The conductive yarn arranged in the weft is preferably a core-sheath composite conductive yarn, where the core part is a yarn containing polyester fiber and cellulose fiber, and the sheath part is a conductive yarn. Thereby, a fabric with a balanced antistatic property, sweat absorbency, quick-drying property, wearing comfort, and wrinkle resistance is obtained.

[0013] The conductive yarn arranged in the weft is preferably a core-sheath composite conductive yarn, where the core part is a polyester stretch fiber yarn, and the sheath part is a conductive yarn. Also, the non-conductive yarn in the weft is preferably a polyester stretch fiber yarn. In the case of work pants, when stretch fiber yarns are arranged in the body length direction of the lower body, the bending operations of the knees and waist become easier. Also, in the case of work tops, when stretch fiber yarns are arranged in the body width direction, the working operations of the shoulders and upper arms become easier. Stretch fiber yarns include, for example, false-twisted yarns of polyethylene terephthalate multifilament yarns, polyester conjugate multifilament yarns, etc.

[0014] The antistatic fabric of the present invention preferably has an elasticity of 8% or more in the weft direction as measured by the JIS L1096 B method (constant load method). This facilitates the above-described working operations. Furthermore, it is also preferable to perform existing water absorption processing. As for the mixing ratio of each material, as the ratio of polyester fiber, cotton, and the conductive yarn in the sheath part, 70 to 85 wt% of polyester fiber, 13 to 25 wt% of cotton, and 1 to 4 wt% of conductive yarn are preferably well-balanced.

[0015] The core-sheath composite conductive yarn is preferably at least one selected from single covering yarn and double covering yarn. Thereby, a conductive yarn with high strength is obtained.

[0016] The antistatic fabric of the present invention preferably has an electrical resistance value between two points measured according to IEC (International Electrotechnical Commission) 61340-5-1 of less than 1×10 11 Ω, more preferably less than 1×10 10 Ω, and even more preferably less than 1×10 9 Ω. Thereby, a fabric with a high antistatic effect is obtained.

[0017] The antistatic clothing of the present invention includes the above-described antistatic fabric. The clothing is preferably work clothing. The work clothing is suitable for upper garments such as shirts and jumpers, lower garments such as slacks and skirts, and connecting clothes.

[0018] The antistatic fabric of the present invention may have any fabric structure, but is preferably composed of a plain weave fabric. When it is a plain weave fabric, the shape retention property can be maintained well. For the warp and weft yarns constituting the plain weave fabric, it is preferable to arrange the conductive yarn at a ratio of about 1 conductive yarn per 5 to 30 non-conductive yarns. Thereby, antistatic properties can be exhibited. The mass (areal density) per unit area of the fabric is preferably 50 to 500 g / m 2 and more preferably 100 to 450 g / m 2 and particularly preferably 140 to 300 g / m 2

[0019] ​The breathable fabric of the present invention will be described with reference to the following drawings. In the following description of the drawings, the same reference numerals denote the same components. FIG. 1 is a schematic plan view of an antistatic fabric 1 according to an embodiment of the present invention. In this antistatic fabric 1, the warp threads are composed of conductive threads 2a and non-conductive threads 2b, and one conductive thread 2a is arranged for every 19 non-conductive threads 2b. Similarly, the weft threads are composed of conductive threads 3a and non-conductive threads 3b, and one conductive thread 3a is arranged for every 15 non-conductive threads 3b. As an example, the conductive threads 2a and 3a use the threads described in FIGS. 2A and 2B below. The fabric texture is a plain weave texture. The non-conductive threads 2b and 3b are as follows as an example. · Blended yarn containing polyester staple fiber and cellulose staple fiber · Worsted cross-twisted yarn containing polyester staple fiber and cellulose staple fiber · Worsted cross-twisted yarn containing polyester filament and cellulose staple fiber · Interlaced yarn containing polyester filament and cellulose filament · Polyester stretch fiber yarn (such as false-twisted multifilament yarn, etc.)

[0020] FIG. 2A is a schematic cross-sectional view of a single covering yarn 4 according to an embodiment of the present invention. One non-conductive yarn 6 of the sheath is wound around the conductive yarn 5 of the core. The twist coefficient K of the non-conductive yarn 6 of the sheath is preferably 500 to 600. FIG. 2B is a schematic cross-sectional view of a double covering yarn 7 according to an embodiment of the present invention. Two non-conductive yarns 9 and 10 of the sheath are wound around the conductive yarn 8 of the core in the S direction and the Z direction. The primary twist coefficient K1 of the non-conductive yarn 9 of the sheath is preferably 500 to 600, and the secondary twist coefficient K2 of the non-conductive yarn 10 is preferably 550 to 650. As an example, the core yarn and the sheath yarn are as follows. (1) Core yarn · Blended yarn containing polyester staple fiber and cellulose staple fiber · Worsted cross-twisted yarn containing polyester staple fiber and cellulose staple fiber · Worsted cross-twisted yarn containing polyester filament and cellulose staple fiber · Interlaced yarn containing polyester filament and cellulose filament · Polyester stretch fiber yarn (such as false-twisted multifilament yarn, etc.) (2) Sheath yarn · Conductive yarn made of multifilament yarn

Example

[0021] The present invention will be further specifically described by the following examples. It should be noted that the present invention is not limited to the following examples. Each evaluation in the examples is as follows. <Electrostatic conductivity>[ The electrical resistance value between two points defined in IEC (International Electrotechnical Commission) 61340-5-1 was measured. This measurement was requested from the Industrial Safety Technology Association, a public interest corporation which is a third party organization, and a report was received. <Other physical properties>[ Other physical properties were measured according to Japanese Industrial Standards (JIS) or measurements conducted in the industry.

[0022] Each material in the examples is as follows. In the following, unless otherwise specified, the polyester is polyethylene terephthalate (PET). <Conductive yarn>[ A1: A core-sheath composite conductive yarn in which the core is a blended yarn of 65% by mass of polyester staple fiber and 35% by mass of cotton (cotton count 34), and the sheath is double-covered with 2 pieces of "Kuracarbon" (conductive filament yarn) manufactured by Kuraray Co., Ltd. A2: A core-sheath composite conductive yarn in which the core is a blended yarn of 65% by mass of polyester staple fiber and 35% by mass of cotton (cotton count 16), and the sheath is double-covered with 2 pieces of "Kuracarbon" (conductive filament yarn) manufactured by Kuraray Co., Ltd. A3: A core-sheath composite conductive yarn in which the core is 1 piece of polyester multifilament false-twisted yarn of 165 decitex, and the sheath is double-covered with 2 pieces of "Kuracarbon" (conductive filament yarn) manufactured by Kuraray Co., Ltd. A4: A core-sheath composite conductive yarn in which the core is 2 pieces of polyester multifilament false-twisted yarn of 330 decitex, and the sheath is double-covered with 2 pieces of "Kuracarbon" (conductive filament yarn) manufactured by Kuraray Co., Ltd. A5: A core-sheath composite conductive yarn in which the core is a single blended yarn of 65% by mass of polyester staple fiber and 35% by mass of cotton (cotton count 16), and the sheath is two single-covered filaments of "Kuracarb" (conductive filament yarn) manufactured by Kuraray Co., Ltd. A6: A core-sheath composite conductive yarn in which the core is a single blended yarn of 65% by mass of polyester staple fiber and 35% by mass of cotton (cotton count 16), and the sheath is three single-covered filaments of "Kuracarb" (conductive filament yarn) manufactured by Kuraray Co., Ltd. <Non-conductive yarn 1: Non-stretch material> B1: A single blended yarn of 65% by mass of recycled PET staple fiber and 35% by mass of cotton (cotton count 34) B2: A single blended yarn of 65% by mass of commercially available regular polyester staple fiber and 35% by mass of cotton (cotton count 34) B3: A single blended yarn of 65% by mass of recycled PET staple fiber and 35% by mass of cotton (cotton count 20) B4: A single blended yarn of 65% by mass of recycled PET staple fiber and 35% by mass of cotton (cotton count 16) <Non-conductive yarn 2: Stretch material> C1: A single polyester multifilament pin false-twisted yarn (semi-dull product), 165 decitex C2: A single polyester multifilament pin false-twisted yarn (semi-dull product), 330 decitex C3: A single polyester multifilament false-twisted woolly yarn, 165 decitex C4: A single double yarn of polyester multifilament false-twisted woolly yarn, 165 decitex

[0023] (Example 1) · Warp: 21 continuous arrangements of the yarn of B2 as the non-conductive yarn, and one arrangement of the yarn of A1 as the conductive yarn in between. · Weft: 15 continuous arrangements of the yarn of C4 as the non-conductive yarn, and one arrangement of the yarn of A2 as the conductive yarn in between. · Fabric weave: Plain weave The fabric was woven as described above. In Example 1, water absorption treatment was also performed.

[0024] (Examples 2 - 6) The experiments were carried out in the same manner as in Example 1, except as shown in Table 1. The thread usage is shown in Table 1 together with that of Example 1, the mixing ratio of each material is shown in Table 2, and the fabric evaluations are summarized in Table 3. Note that for Examples 2 - 4, water absorption treatment was performed.

[0025]

Table 1

[0026]

Table 2

[0027]

Table 3

[0028] As is clear from Tables 1 - 3, the fabrics of each example of the present invention had good antistatic properties and good dimensional stability after washing. Also, work clothes (jackets) were sewn using the fabrics of each example of the present invention. These work clothes (jackets) had a good balance of sweat absorption, quick drying, comfort, and wrinkle resistance, were machine washable, and had a good feeling of wear. Also, the fabrics of Examples 3 and 4 had good stretchability and were work clothes that allowed for easy work movements.

Industrial Applicability

[0029] The breathable fabric of the present invention is suitable for work clothes, uniforms, etc., upper garments, lower garments, and connecting garments.

Explanation of Signs

[0030] 1 Antistatic fabric 2a Warp conductive yarn 2b Warp non - conductive yarn 3a Weft conductive yarn 3b Weft non - conductive yarn 4 Single covering yarn 5,8 Conductive yarn 6,9,10 Non - conductive yarn 7 Double covering yarn

Claims

1. An antistatic fabric containing conductive yarns and non-conductive yarns, wherein the conductive yarns are arranged at intervals in the warp and weft yarns, The conductive yarns arranged at least in the warp are core-sheath composite conductive yarns, wherein the core part is a yarn containing polyester fiber and cellulose fiber, and the sheath part is a conductive yarn. The antistatic fabric is characterized by this.

2. The antistatic fabric according to Claim 1, wherein the non-conductive yarn of the warp is a blended yarn of polyester fiber and cellulose fiber.

3. The conductive yarn arranged in the weft is a core-sheath composite conductive yarn, wherein the core part is a yarn containing polyester fiber and cellulose fiber, and the sheath part is a conductive yarn. The antistatic fabric according to Claim 1 or 2 is characterized by this.

4. The conductive yarn arranged in the weft is a core-sheath composite conductive yarn, wherein the core part is a polyester stretch fiber yarn, and the sheath part is a conductive yarn. The antistatic fabric according to any one of Claims 1 to 3 is characterized by this.

5. The non-conductive yarn of the weft is a polyester stretch fiber yarn. The antistatic fabric according to any one of Claims 1 to 4 is characterized by this.

6. The antistatic fabric according to any one of Claims 1 to 5, wherein the stretchability in the weft direction is 8% or more by measurement defined in JIS L1096 B method (constant load method).

7. The core-sheath composite conductive yarn is at least one selected from single covering yarns and double covering yarns. The antistatic fabric according to any one of Claims 1 to 6 is characterized by this.

8. The antistatic fabric has an electrical resistance value between two points measured according to the measurement specified in IEC (International Electrotechnical Commission) 61340-5-1 of less than 1×10 11 Ω, and is the antistatic fabric according to any one of claims 1 to 7.

9. An antistatic garment containing the antistatic fabric according to any one of Claims 1 to 8.

10. The antistatic garment according to Claim 9, wherein the garment is work clothing.

Images