JPH11350296A - Woven fabric having excellent electrical conductivity and antistaticity and dustfree wear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a woven fabric having excellent electrical conductivity and antistaticity and useful as a material for a dustfree wear by covering a synthetic fiber yarn core with an electrically conductive conjugate spun yarn and using the obtained electrically conductive yarn as the warp and/or the weft interposing a gap between the yarns. SOLUTION: A synthetic fiber yarn comprising a filament yarn or a false twist yarn made of polyester, polyamide, etc., is used as a ground yarn of the objective fabric. An electrically conductive yarn having a double-covered structure is mixed as the warp and/or the weft of the fabric interposing a gap. The electrically conductive yarn is produced by using the synthetic fiber yarn same as the yarn used as the ground yarn as a core and covering the core at a covering ratio of 20-70% with an electrically conductive conjugate spun yarn having an electric resistance of 10<6> to 10<9> Ω/cm, composed of a non-conductive base polymer such as polyester or polyamide and a matrix polymer composed of the polymer same as the above base polymer and containing carbon as electrically conductive component and exposing at least a part of the latter polymer on the fiber surface. The woven fabric is sewn with a sewing thread containing 30-100 wt.% of the above conductive conjugate spun yarn to obtain a dustfree wear having a specific resistance of <=10<9> Ω including the sewn part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woven fabric having excellent conductivity and antistatic properties, and a dustproof garment obtained by sewing the woven fabric. More specifically, the present invention relates to a dust-proof garment having conductivity throughout and having excellent durability and antistatic properties.

[0002]

2. Description of the Related Art Conventionally, a yarn made of a conductive yarn and a synthetic fiber has been woven into a dust-proof garment fabric as a measure against static electricity. The cloth in which the yarns containing the conductive yarns are woven is not only a case where the yarns containing the conductive yarns are mixed and woven in stripes at regular intervals, but also a case where the yarns are woven in a lattice shape, in the longitudinal direction and the weft direction. There is conductivity in the direction in which the conductive yarn is woven, but satisfactory conductivity cannot be obtained in the diagonal direction of the cloth, so it is difficult to obtain conductivity throughout the cloth for dustproof clothing. . This is because in the woven fabric, the conductive yarn inserted into the warp and the conductive yarn inserted into the weft do not have sufficient contact and conduction.

[0003] In a dustproof garment made by sewing this woven fabric, it is difficult to obtain conduction in the sewn portion, and it is even more difficult to obtain conduction throughout the dustproof garment. This is due to the fact that the conductive yarns of the respective fabrics are not in contact with each other in the sewn portion.

[0004] In the case of weaving a conductive yarn into a woven fabric, if the conductive yarn consisting of only the conductive yarn is woven, the original yarn characteristics such as strength, elongation, and shrinkage ratio between the conductive yarn and other yarns constituting the woven fabric are obtained. Therefore, various defects such as yarn breakage and puckering tend to occur during weaving and processing, and it is also important to reduce the amount of conductive yarn used because it is more expensive than general fiber materials.

[0005] Therefore, it is common practice to draw conductive yarns together with yarns of the same kind as the ground yarns constituting the woven fabric and to blend them by a method such as twisting or air entanglement. When these conductive yarns are mixed into stripes at regular intervals during fabric weaving and woven, the conductive yarn has conductivity in the woven direction, but cannot obtain conductivity in the other direction.

[0006] Even when these conductive yarns are woven in a grid pattern at regular intervals during fabric weaving, there is conductivity in the direction in which the conductive yarns are woven, such as the longitudinal direction and the weft direction, but the warp yarns. It is difficult to obtain satisfactory conduction in the diagonal direction of the woven fabric because the conductive yarn mixed in the woven fabric and the conductive yarn mixed in the weft are not conductive, and as a result, the continuity over the entire woven fabric is obtained. Was difficult to get.

[0007] The conductive yarn of the yarn containing the conductive yarn inserted into the warp and the conductive yarn of the yarn containing the conductive yarn inserted into the weft is embedded in the mixed yarn. This is due to the fact that the contact of the user is impaired. In addition, since the conductive yarn is buried inside the mixed yarn, the antistatic property is poor, and the contact resistance between the conductive yarn and the outside increases, and the fabric is sewn under a low contact pressure such as sewing. It was also difficult to make the sewn portions in contact with each other conductive.

[0008] As described above, the conventional dust proof garment is characterized in that the woven fabric used in each part of the dust proof garment does not have electrical continuity over the entire woven fabric, and the continuity of the sewn portion when each part is sewn is stable. There are two problems that cannot be obtained from the viewpoint, and it is difficult to obtain electrical continuity throughout the dust-proof garment.

As a method for improving antistatic properties, Japanese Patent Application Laid-Open No.
JP-A-28546 describes a method in which a conductive yarn is lifted on the surface of a fabric to form a parallel grid to improve the static electricity dissipation performance. However, in this method, the warp,
Contact between the conductive yarns formed on the weft yarns is insufficient, and it is difficult to obtain oblique conduction of the fabric. Further, since the conductive yarn is lifted on the surface of the fabric or is larger than the diameter of the non-conductive ground yarn forming the fabric, there is a problem in wear durability.

Japanese Utility Model Laid-Open Publication No. 55-135014 discloses that in order to improve conduction of a sewn portion of a dustproof garment, a sewn portion is formed by using a thread containing a conductive fiber as a part of a sewing thread, and a conductive material mixed in a woven fabric. It is described that the sewing is performed so as to be electrically connected to the end of the conductive fiber. However, in this case, the conductive fiber is used only for a part of the sewing thread, so if a dustproof garment is worn, washing is repeated, and puckering or the like occurs in the sewn portion,
There is a possibility that the electrical contact of the sewn portion is impaired. Actual opening 5
Japanese Patent Application Laid-Open No. 8-160209 discloses a garment in which a conductive material is provided at a polymerized portion or a butt portion of a woven fabric in which conductive fibers are woven at appropriate intervals, and each portion is electrically connected. Are listed. However, in this case, the conductive material must be provided at the overlapping portion or the abutting portion of the cloth, so that there is a problem in economy, and further, there is a problem in durability of the provided conductive material itself.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. Particularly, the present invention relates to a woven fabric excellent in conductivity and antistatic properties and a dustproof garment obtained by sewing the woven fabric. An object of the present invention is to provide a dustproof garment having conductivity and having excellent durability and antistatic properties.

[0012]

The present invention firstly provides a woven fabric obtained by mixing conductive yarns with warps and / or wefts at intervals, wherein the conductive yarns are synthetic fiber long fiber yarns serving as a core. A woven fabric having a structure in which a conductive composite spun yarn is covered. Secondly, the present invention resides in the above-described woven fabric, wherein the conductive yarn mixed with the warp and the weft has a double covering structure in which a conductive composite spun yarn is covered on a synthetic long fiber yarn serving as a core. Thirdly, the present invention has a double covering structure in which one of the conductive yarns mixed with the warp and the weft covers the conductive composite spun yarn on the synthetic fiber long fiber yarn serving as a core, and the other has a core. The above woven fabric has a single covering structure in which a conductive composite spun yarn is covered on a synthetic fiber long fiber yarn. Fourth, the present invention has a double covering structure in which one of the conductive yarns mixed with the warp and the weft is covered with a conductive composite spun yarn on a synthetic fiber long fiber yarn serving as a core, and the other is a synthetic fiber. The above woven fabric has a structure in which the long fiber yarn and the conductive composite spun yarn are twisted.

Fifth, the present invention resides in the above-described woven fabric, wherein the conductive yarn has a coverage of 20 to 70% of the conductive composite spun yarn. A sixth aspect of the present invention is the above-described woven fabric, wherein the conductive composite spun yarn contains carbon and has an electric resistance of 10 ⁶ to 10 ⁹ Ω / cm. A seventh aspect of the present invention is a conductive composite spun yarn obtained by composite spinning a non-conductive base polymer and a matrix polymer containing carbon as a conductive component such that at least a part of the latter is exposed on the yarn surface. In the above woven fabric. The eighth aspect of the present invention resides in a dust proof garment made of the above woven fabric.

A ninth aspect of the present invention is that the woven fabric is made of carbon.
Contains and electric resistance is 10⁶-10 ⁹Ω / cm
A sewing thread containing 30 to 100% by weight of the electro-conjugated spun fiber;
In the above-mentioned dustproof garment which is sewn and used. First of the present invention
0 indicates that the conductive thread contained in the sewing thread is a non-conductive base polymer
And matrix poly containing carbon as conductive component
So that at least a part of the latter is exposed on the yarn surface.
In the above-mentioned dustproof garment obtained by composite spinning. Book
An eleventh aspect of the invention is that the resistance value of the portion including the sewn portion is 10⁹Ω
In the above-mentioned dustproof garment which is as follows.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The woven fabric of the present invention has a structure in which a conductive yarn used for a warp and a weft is formed by covering a synthetic synthetic filament yarn serving as a core with a conductive composite spun yarn. And a double covering structure in which a conductive composite spun yarn is covered on a synthetic fiber long fiber yarn serving as a conductive yarn core used for a weft, or one of conductive yarns mixed with a warp and a weft, A double covering structure in which a conductive composite spun yarn is covered on a synthetic fiber long fiber yarn serving as a core, and a single covering structure in which a conductive composite spun yarn is covered on a synthetic fiber long fiber yarn serving as a core. Or, among the conductive yarns mixed with the warp and the weft, one of the double-covering structure in which a conductive composite spun yarn is covered on a synthetic long fiber yarn serving as a core, Write is intended preferably a structure Goyo synthetic fiber filament yarn and the conductive composite spinning yarn.

The synthetic long fiber yarn used as the core of the conductive yarn may be essentially the same as that constituting the base of the woven fabric for clothing. Specific examples of the material include polyesters (eg, polyethylene terephthalate) and polyamides (eg, nylon 6, nylon 66), and polyesters are most preferable in terms of chemical resistance, handleability, and the like. For example, a processed yarn such as a polyester filament yarn having a single yarn fineness of 0.1 to 5 denier and a total fineness of 50 to 200 denier or a false twisted yarn thereof is preferably used.

The conductive yarn covering the core (non-conductive) synthetic fiber long fiber yarn may be a metal-coated synthetic fiber long fiber yarn, a base polymer serving as a fiber substrate, and carbon, metal or metal. A yarn composed of a composite fiber obtained by compound-spinning a conductive polymer in which fine particles of a conductive substance such as a compound are dispersed in a matrix polymer is used.However, a metal-coated yarn or a composite fiber whose conductive component is a metal or a metal compound is used. Since there is a problem in durability, such as metal parts eluting or peeling off under acid or alkali environment,
A composite spin of a base polymer and carbon is preferred. As the base polymer, the same material as that constituting the ground portion is preferable, and polyester, polyamide, and the like can be used as preferable specific examples. The matrix polymer is also preferably made of the same material as the base polymer.

The cross-sectional shape of the conductive composite spun yarn is not particularly limited as long as a part of the conductive material (containing conductive polymer) is exposed on the surface. FIG. 1 shows an example of the cross-sectional shape. In FIG. 1, 1 indicates a base polymer (non-conductive polymer) layer, and 2 indicates a conductive polymer layer. The conductive composite spun yarn has, for example, a single yarn fineness of 1 to 5 deniers and a total fineness of 10 to 200 deniers, preferably 1 denier.
A denier of 0 to 100 is used. The resistance value of the conductive composite spun yarn is usually 10 ⁹ Ω / cm or less, particularly 10 ⁸ Ω / cm.
/ Cm or less.

These conductive composite spun yarns are covered, preferably double-covered, with the core (non-conductive) synthetic fiber filament yarn to form conductive yarns. The conductive yarn coverage, which indicates the ratio of the conductive yarn in the conductive yarn having the double covering structure, is the ratio of the conductive yarn when the conductive yarn shown in FIG. 2 is viewed from the side, and is expressed by the following equation. . Conductive yarn coverage (%) = conductive yarn area / conductive yarn area × 10
0

The coverage of the conductive yarn is preferably as high as possible, but in consideration of the workability of the conductive yarn, the weaving, the cost, the conductivity and the like, the coverage of the conductive yarn is preferably 20 to 70%. 20%
Below, it is difficult to obtain the conduction effect. If it is 70% or more, sufficient conduction can be obtained, but if it is mixed more than that, no particular effect can be obtained, which is disadvantageous in cost.

As a method for stably increasing the conductive yarn coverage of the conductive yarn, a double covering structure in which the covering upper and lower yarns are simultaneously wound in opposite directions is preferable. By adopting such a structure, the covering ratio of the conductive yarn is increased, and furthermore, the covered conductive yarn is hard to slip, so that the slip at the time of yarn processing and weaving can be prevented.

Further, by using the conductive yarn having such a structure, physical properties such as strength of the conductive yarn are stably secured. Further, since the conductive yarn is exposed on the yarn surface, the contact property between the conductive yarn of the conductive yarn inserted in the warp and the conductive yarn of the conductive yarn inserted in the weft is improved, and the obliqueness of the cloth is improved. Conduction in all directions including the direction can be ensured. Further, when a dustproof garment is manufactured using such a cloth, the contact resistance is reduced even at a low contact pressure such as sewing at the sewn portion, so that a dustproof garment that can ensure conduction of the sewn portion can be obtained.
Further, with such a structure, a woven fabric and a dustproof garment having excellent antistatic properties can be provided.

Further, by setting the fineness of the conductive yarn to the same level as that of the non-conductive fiber of the ground portion constituting the woven fabric, it is possible to improve the wear durability without the conductive yarn protruding from the woven fabric. it can. The pitch at which the conductive yarn is mixed is 1/3 cm or more, preferably 1 / cm, in both the warp direction and the weft direction.
cm or more is preferred.

[0024] With this kind of structure, the resistance value of the fabric was measured by the method shown in FIG. 3 10 ⁶ ~10 ⁹ Ω
In particular, the oblique resistance of the woven fabric measured by the method shown in FIG. 4 can be set to 10 ⁶ Ω to 10 ⁹ Ω.

As described above, the woven fabric using the conductive yarn having the conductive yarn coverage within the above range enables the woven fabric to conduct in all directions, stably reduces the resistance, and has excellent antistatic properties. Can be secured.

By suturing the above-mentioned woven fabrics of the present invention, conduction of the sewn portion can be easily obtained, and a conductive dustproof garment can be obtained not only for the woven fabric but also for the entire dustproof garment.
Furthermore, in the production of the above-mentioned dust-proof garment, the stitching portion of the dust-proof garment is sewn by using a sewing thread including a conductive composite spun yarn, so that wearing, washing, etc. are repeated, and even if puckering occurs in the sewn portion, the sewing thread can be stitched. Thus, conduction can be stably ensured through.
In other words, even when puckering occurs and the contact conduction between the conductive yarns of the woven fabrics is impaired, the conductive yarns exposed on the surface of the woven fabric and the conductive yarns in the sewing thread are in continuity with each other. Conduction can be stably ensured.

The conductive yarn used for the suturing portion may be a composite fiber obtained by compound-spinning a base polymer as a fiber matrix and a conductive polymer in which fine particles of a conductive substance such as carbon, metal or metal compound are dispersed in a matrix polymer. Or a synthetic fiber yarn coated with metal, and a metal-coated yarn or a conductive yarn whose conductive component is made of metal,
Under an acid or alkali environment, there is a problem in durability such as a metal part being eluted or peeled off. Therefore, a composite spin of a base polymer and carbon is preferably used. As the base polymer, the same material as that constituting the ground portion of the woven fabric is preferable, and polyester and polyamide can be used as preferable specific examples. Conductive composite spun yarn is a conductive substance (contains a conductive polymer)
There is no particular limitation on the cross-sectional shape and the like as long as a portion of the is exposed on the surface. FIG. 1 shows an example of the cross-sectional shape.
The conductive composite spun yarn has, for example, a single yarn fineness of 1 to 5 deniers,
Total fineness is 10 to 200 denier, preferably 10 to 10
A denier of 0 is used. Further, the resistance value is usually 10 ⁹ Ω / cm or less, particularly preferably 10 ⁸ Ω / cm or less.

It is preferable to use a sewing thread containing 30 to 100% by weight of such a conductive composite fiber. When the content of the conductive fiber is 30% by weight or less, it is difficult to stably impart durable conductivity to the sewn portion. Also, as the fiber to be mixed with the conductive fiber as the sewing thread, the same material as that constituting the ground portion of the woven fabric is preferable,
Long fiber yarns such as polyester and polyamide can be used as a preferred specific example. As a method of blending, twisting is preferable.

The use of a conductive thread in which such a conductive yarn and a non-conductive fiber yarn are mixed as a sewing thread provides conductivity, and when wearing and washing are repeated, and puckering occurs at the stitched portion. However, it is possible to form a suture portion having excellent durability. The resistance value of such a conductive yarn is also preferably 10 ⁹ Ω / cm or less, particularly preferably 10 ⁸ Ω / cm or less. The fineness of the sewing thread is preferably 180 to 360 denier.

In the dustproof garment sewn using the woven fabric of the present invention and the above-described sewing thread, even if static electricity is generated in any part of the garment, the entire woven fabric and the dustproof garment are stably conducted. Is effectively obtained, and the durability and the antistatic property are excellent.

[0031]

Next, an embodiment of the present invention will be described. The evaluation method is as follows. [Surface resistance value of woven fabric] (length direction of woven fabric) As shown in FIG. 3, a surface resistance measuring device (ST-3 manufactured by SIMCO) is placed on a sample having a width of 5 cm and a length of 5 cm or more. Measure 10 samples in the length direction of the fabric at a time, and calculate the average. [Surface resistance value of fabric] (oblique direction) Measured as shown in FIG. [Resistance value of sewing thread] As shown in FIG. 5, a surface resistance measuring device (ST-3, manufactured by SIMCO) was gently placed on one sewing thread and the resistance value was measured. Ten samples were measured and averaged.

[Warp endurance] A cloth sewn on a polyester taffeta by lock stitching (having 14 stitches) was worn 30 times in accordance with the method described in JIS L1096 abrasion strength C method, and the degree of abrasion was visually judged. . (Wear wheel No. CS1
0, load 250gf) (Criterion of judgment) ○ The sewing thread is slightly damaged △ The sewing thread is considerably damaged × The sewing thread is cut

[Chemical durability of sewing thread] JIS H850
The test was performed according to the Cass test described in 2 (corrosion resistance test method of plating). The sample was a sewing machine in which a sewing thread was sewn on a 1 dm ² polyester taffeta with the number of stitches of 14 by regular sewing. The test time was 24 hours, and the judgment was made based on the following criteria. ○ No corrosion is observed on the conductive thread. × Corrosion is observed in the conductive yarn portion.

[Sew portion resistance value] As shown in FIG. 6, two cloths are sewn by winding and sewing so that the angle (θ) between the yarns including the warp portion conductive yarn is 5 °. A clip electrode is attached to the sewn sample, and measurement is performed with a Symco surface resistor ST-3. [Dustproof clothing resistance value] A clip electrode is attached to the sewn clothing as shown in FIG. 6, and the resistance value is measured. [Fabric durability] Abrasion was performed 5,000 times in accordance with the abrasion strength test method E (Martindale method) described in JIS L 1096 (General woven fabric test method), and the degree of abrasion was visually determined. (Criterion for judgment) ○ The fabric is slightly damaged × The fabric is considerably damaged

(Example 1) Polyester filament yarn 75d-36f is used as the warp forming the ground portion, polyester false twisted yarn 75d-36f is used as the weft, and polyester filament 30d-12f is used as the warp portion conductive yarn. Bertlon B on yarn
31 (manufactured by Kanebo) 20d-6f was covered with S twist at 600 T / m, and Bertron B31 (manufactured by Kanebo) 20d-6f was further covered with Z twist at 480 T / m. A conductive yarn having a double covering structure is inserted at a ratio of one for every 30 yarns. Also, a polyester false twisting system 50d-24F is used for the weft yarn conductive yarn and Bertron B31 (manufactured by Kanebo) 20d-6f is used for the yarn. A plain woven fabric having a warp density of 160 yarns / inch and a weft yarn density of 105 yarns / inch, which is formed by inserting a covering yarn having a 30% coverage of a conductive yarn, which is single-covered at 600 T / m by S-twisting, at a ratio of one yarn to 20 yarns. Using polyester long fiber yarn 40d-18f
Yarn and Bertron B31 (Kanebo) 20d-6f yarn 2
A dustproof garment was made by using a sewing thread obtained by twisting a total of three strands with S twist at 600 T / m and twisting with three Z strands at 480 T / m. The performance is shown in Tables 1, 2, 3, and 4.

(Example 2) Polyester filament yarns 75d-36f were used as the warp forming the ground portion, polyester false twisted yarns 100d-48f were used as the weft, and polyester filament yarns 30d-12f were used as the warp portion conductive yarn. Bertron B31 (manufactured by Kanebo) 20d-6f with S twist, 600T / m
, And further, Bertron B31 (manufactured by Kanebo) 20d-6f was covered with Z-twist at 480 T / m, and a conductive yarn having a double covering structure with a covering ratio of 65% with a conductive yarn coverage of 65% was added to every 30 yarns. In addition, a conductive yarn covering ratio of 28 d-f of Bertron B31 (manufactured by Kanebo) was single-covered at 600 T / m with S twist on a 75-36 f polyester false twisted yarn on the conductive yarn of the weft portion. % Single covering yarn inserted at a ratio of one yarn per 20 yarns, a warp density of 160 yarns / inch and a weft density of 11 yarns.
Using 0 / inch 2/3 twill fabric, polyester long fiber yarn 40d-18f and Bertron B31 (manufactured by Kanebo) 20
A dustproof garment was made by using a sewing thread obtained by twisting two d-6f yarns, that is, a total of three twisted yarns at an S twist of 600 T / m, and twisting three Z twisted yarns at 480 T / m. The performance is shown in Tables 1 and 2.

(Example 3) Polyester filament yarns 75d-36f are used as the warp yarns forming the ground portion, polyester false twisted yarns 100d-48f are used as the weft yarns, and polyester filament yarns 30d-12f are used as the warp portion conductive yarns. Bertron B31 (manufactured by Kanebo) 20d-6f with S twist, 600T / m
, And further, Bertron B31 (manufactured by Kanebo) 20d-6f was covered with Z-twist at 480 T / m, and a conductive yarn having a double covering structure with a covering ratio of 65% with a conductive yarn coverage of 65% was added to every 30 yarns. Also, a polyester false twisted yarn 75d-36f and a Bertron B31 (manufactured by Kanebo) 20d-6f were S-twisted at 600 T / m in the weft portion conductive yarn and twisted at 600 T / m. % Covering yarn inserted at a ratio of one in 20 yarns, using a plain fabric having a warp density of 160 yarns / inch and a weft yarn density of 85 yarns / inch,
Polyester filament 40d-18f yarn and Bertron B31 (manufactured by Kanebo) 20d-6f yarn are twisted at 600T / m in total, and Z-twisted 480T /
A dustproof garment was prepared using the thread twisted at m. The performance is shown in Tables 1 and 2.

(Comparative Example 1) Polyester filament yarn 75d-36f was used as the warp forming the ground portion, polyester false twisted yarn 75d-36f was used as the weft, and polyester filament 30d-12f was used as the warp portion conductive yarn. Bertlon B on yarn
31 (manufactured by Kanebo) 20d-6f was covered with S twist at 600 T / m, and Bertron B31 (manufactured by Kanebo) 20d-6f was further covered with Z twist at 480 T / m. Using a plain woven fabric having a warp density of 160 yarns / inch and a weft density of 105 yarns / inch, which is formed by inserting conductive yarns having a double covering structure at a ratio of one yarn per 30 yarns,
A total of three polyester long fiber yarns of 40d-18f and two of Bertron B31 (manufactured by Kanebo) 20d-6f were twisted at an S twist of 600 T / m.
Using a sewing thread twisted at m, a dustproof garment was prepared. The performance is shown in Tables 1 and 2.

(Comparative Example 2) Polyester filament yarn 75d-36f was used as the warp forming the ground portion, polyester false twisted yarn 75d-36f was used as the weft, and polyester filament 50d-24f was used as the warp portion conductive yarn. Yarn and Bertron B
31 (manufactured by Kanebo) 20d-6f, a conductive yarn with a conductive yarn coverage of 15%, which is interlaced, is inserted at a ratio of one out of 30 yarns, and a polyester false twisted yarn 50d- is inserted into the weft yarn. A warp density of 160 / inch and a weft yarn, in which a conductive yarn having a conductive yarn covering ratio of 15%, which is obtained by interlacing Bertron B31 (manufactured by Kanebo) 20d-6f, into a 24f yarn, is inserted at a ratio of 20 yarns. Using a plain woven fabric with a density of 105 yarns / inch, a polyester filament 40d-18f yarn and a Bertron B31 (Kanebo) 20d-6f yarn, two of which are S-twisted at 600 T / m, for a total of three yarns. Three Z
A dustproof garment was prepared using a sewing thread twisted at a twist of 480 T / m. The performance is shown in Tables 1 and 2.

(Comparative Example 3) Polyester filament yarn 75d-36f was used as the warp constituting the ground portion, polyester false twisted yarn 75d-36f was used as the weft, and polyester filament 100d-48f was used as the warp portion conductive yarn. Thread and Bertron B31 (Kanebo) 20d-6f with S twist, 600T / m
A conductive yarn having a covering rate of 18% is inserted at a ratio of one to thirty, and a polyester false twisted yarn 100d-48f and a beltron B31 ( 600d / m with S twist of 20d-6f
Twenty conductive yarns with a 18% conductive yarn coverage rate
Using a plain woven fabric having a warp density of 160 yarns / inch and a weft yarn density of 105 yarns / inch, which is inserted at a ratio of yarns, a polyester filament yarn 40d-18f and a beltron B31 (manufactured by Kanebo)
A dustproof garment was prepared using a sewing thread obtained by twisting two yarns of 0d-6f, a total of three yarns, at a twist of 600 T / m and twisting three Z twists at 480 T / m. The performance is shown in Tables 1 and 2.

(Comparative Example 4) Using the fabric of Example 1, a polyester filament yarn 75d-24f was twisted with a Z twist of 400T.
/ M was twisted at 280 T / m with three twisted yarns at a rate of 280 T / m to prepare a dustproof garment. Tables 3 and 4 show the performance.
Shown in

(Comparative Example 5) Using the fabric of Example 1, three strands of silver-plated polyester filament 100d-34f twisted at 600 T / m and Z twist 480 were used.
A dustproof garment was prepared using the sewing thread twisted at T / m. The performance is shown in Tables 3 and 4.

[0043]

[Table 1]

[0044]

[Table 2]

[0045]

[Table 3]

[0046]

[Table 4]

[0047]

As described above, according to the present invention, conductivity is exhibited in all directions of the fabric constituting the dust-proof garment, and excellent conductivity is exhibited throughout the dust-proof garment including the sewn portion. Since it has excellent durability and durability even after repeated wearing and washing, it is possible to provide a dustproof garment that can effectively remove static electricity by using the ground.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a conjugate spun fiber.

FIG. 2 is a sectional view showing a double covering structure.

FIG. 3 is an explanatory diagram of a method for measuring a surface resistance value (a length direction of a woven fabric) of the woven fabric.

FIG. 4 is an explanatory diagram of a method for measuring a surface resistance value (oblique direction) of a woven fabric.

FIG. 5 is an explanatory diagram of a method for measuring a resistance value of a sewing thread.

FIG. 6 is an explanatory view showing a method of measuring a resistance value of a sewing portion.

FIG. 7 is an explanatory view showing a method of measuring a resistance value of a dust-proof garment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base polymer layer 2 Conductive polymer layer 3 Synthetic fiber long fiber thread 4 Conductive thread 5 Sample 6 Conductive thread 7 Resistance measuring instrument (ST-3 manufactured by SIMCO) 8 Electrode 9 Sewing thread 10 Sewing part

Claims (11)

[Claims] 1. A woven fabric obtained by mixing conductive yarns with warps and / or wefts at intervals, wherein the conductive yarns have a structure in which a conductive composite spun yarn is covered on a synthetic synthetic fiber long yarn serving as a core. A woven fabric, wherein 2. A conductive yarn mixed with a warp and a weft,
The woven fabric according to claim 1, wherein the woven fabric has a double covering structure in which a conductive composite spun yarn is covered on a synthetic long fiber yarn serving as a core. 3. A double covering structure in which one of the conductive yarns mixed with the warp and the weft has a synthetic fiber long fiber yarn serving as a core covered with a conductive composite spun yarn, and the other has a core serving as a core. The woven fabric according to claim 1, wherein the woven fabric has a single covering structure in which a conductive composite spun yarn is covered on a long fiber yarn. 4. A double covering structure in which one of the conductive yarns mixed into the warp and the weft has a conductive synthetic spun yarn covered on a synthetic fiber long fiber yarn serving as a core, and the other is a synthetic fiber long fiber. The woven fabric according to claim 1, wherein the woven fabric has a structure in which a yarn and a conductive composite spun yarn are twisted. 5. The conductive yarn according to claim 1, wherein the conductive yarn has a coverage of 20 to 70%.
The woven fabric according to the above item. 6. The woven fabric according to claim 1, wherein the conductive composite spun yarn contains carbon and has an electric resistance of 10 ⁶ Ω / cm to 10 ⁹ Ω / cm. 7. A conductive composite spun yarn obtained by composite spinning a non-conductive base polymer and a matrix polymer containing carbon as a conductive component such that at least a part of the latter is exposed on the fiber surface. The woven fabric according to claim 1. 8. A dustproof garment comprising the woven fabric according to claim 1. 9. A fabric containing carbon and containing electricity.
Resistance is 10⁶-10 ⁹Ω / cm conductive composite spun yarn
Using a suture containing 30 to 100% by weight of
The dustproof garment according to claim 8. 10. A conductive yarn contained in a sewing thread obtained by compound spinning a non-conductive base polymer and a matrix polymer containing carbon as a conductive component such that at least a part of the latter is exposed on the surface of the yarn. The dust proof garment according to claim 8 or 9, wherein: 11. A resistance value of a portion including a sewing portion is 10 ⁹ Ω.
The dust proof garment according to any one of claims 8 to 10, wherein: