JPH07102443A - Acrylic bulky woven and knitted fabric - Google Patents

Abstract

PURPOSE:To obtain acrylic bulky woven and knitted fabrics having bulky structure of fabrics themselves, selectively absorbing sunlight positively to convert into heat and to raise heat retaining properties, having high-degree antistatic properties under a low-humidity environment. CONSTITUTION:These woven and knitted fabrics are constituted of bulky yarn comprising highly shrinkable yarn having 8-35% shrinkage in boiling water and low shrinkable yarn having <=3% shrinkage in boiling water. The low shrinkable yarn is mixed with 3-50wt.% based on the total yarns of electrically-conductive yarn. The electrically- conductive yarn is acrylic yarn having a carbon black-containing antistatic polymer orientated in a striped state in single fiber. The antistatic polymer is at least partially exposed to the surface of the yarn and the electrically-conductive yarn has 10 to 10<6>OMEGA.cm electric specific resistance. A cylindrical knitted fabric having 200g/m<2> weight composed only of the electrically-conductive yarn has <=10% maximum spectral reflectance in a wavelength region of 760mmu to 2,000mmum. The amount of the whole carbon black contained in the woven and knitted fabrics is >=0.1wt.%, the low shrinkable yarn is unevenly arranged on the outside face of the woven and knitted fabric and the acrylic the woven and knitted fabrics have <=2kv frictional dielectric strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acrylic bulky knitted woven fabric which is excellent in sunlight absorption and heat conversion, bulkiness and antistatic property, and more specifically, it is made by mixing and blending carbon black-containing conductive fibers with a fabric. Acrylic-based, suitable for cold-weather clothing, sports, and leisure clothing, which has a heat absorption effect due to sunlight absorption and heat conversion based on selective sunlight absorption characteristics, bulkiness, and anti-static effect with little humidity dependency The present invention relates to a bulky knitted fabric.

[0002]

2. Description of the Related Art Heretofore, as a means for improving the heat retaining property of a knitted fabric, there have been known hollow fiber fabrics utilizing the heat insulating property of air, and those raising the air content of the fabric by raising the fabric surface. However, since the cloth itself is thick, it has a drawback that it is heavy and bulky and its free movement is hindered.
Recently, it has been known from JP-A-1-132816 that a specific ceramic, for example, zirconium carbide is contained in a fiber to positively utilize sunlight to form a heat-retaining knitted fabric. The heat storage and heat retention effects are not necessarily good because they must be mixed in the core.

Japanese Patent Laid-Open No. 3-97959 discloses a heat-retaining fiber that absorbs sunlight by modifying acrylic fibers to which copper ions or the like are attached. There are problems such as easy change and poor washing resistance. In addition, in order to prevent the generation of static electricity from the past, a method of using antistatic fibers blended with an antistatic treatment or hydrophilic polymer with a surfactant,
A method to prevent static electricity by mixing metal fibers, a method using organic fibers coated with metal by plating or vapor deposition, or an organic fiber coated with resin containing carbon particles, antistatic properties using a polymer containing carbon black Methods using fibers are known.

[0004]

However, the fibers supplied in the prior art and the cloths obtained from them have the sole purpose of retaining heat or antistatic property. It did not have both positive heat retention and antistatic properties. Therefore, the heat-retaining cloth has not yet solved various problems such as static electricity, particularly the wrapping of clothes on the body in a low-humidity environment, electric shock due to human body electrification, undressing discharge noise, and dust adhesion.

On the other hand, since the antistatic cloth is used for the purpose of preventing static electricity, for example, the outer surface of the cloth is white or has good dyeability, and the antistatic fiber is used as the inner surface. Although we have made ingenuity such as fabric configuration with fibers arranged, it is not a fabric configuration that actively and selectively absorbs sunlight to enhance heat retention, but there is still a problem that the heat retention on the back side of the fabric is low there were. An object of the present invention is to simultaneously solve the problems of the conventional heat-retaining cloth and antistatic cloth, to increase the bulk of the structure of the cloth itself, and to positively selectively absorb sunlight and perform heat conversion. It is an object of the present invention to provide an excellent acrylic bulky knitted woven fabric which has both heat insulating property and antistatic property based on sunlight absorption heat conversion, which has a high antistatic effect in a low humidity environment while enhancing heat insulating property.

[0006]

The present invention includes: The knitted woven fabric is composed of bulky yarns composed of highly shrinkable fibers having a boiling water shrinkage of 8% to 35% and low shrinkage fibers having a boiling water shrinkage of 3% or less. 3 to 50% by weight of all the fibers are mixed in the conductive fiber, and the conductive fiber has carbon black-containing antistatic polymer oriented in a streak in the single fiber. Is made of acrylic fiber at least partially exposed on the fiber surface, and the electrical resistivity of the conductive fiber is 10 to 10 ⁶
Ω · cm, 760 mμ to ² of a tubular knitted fabric having a basis weight of 200 g / m ² knitted with a spun yarn composed of only the conductive fibers.
Maximum spectral reflectance of 10% in the wavelength range of 000mμ
And the total amount of carbon black contained in the knitted fabric is 0.1% by weight or more, the low shrinkage ratio fibers are unevenly arranged on the outer surface of the knitted fabric, and the friction electrification voltage is 2
An acrylic bulky knitted fabric, which is a knitted fabric having a kv or less. 2. The acrylic bulky knitted woven fabric according to 1 above, wherein the knitted woven fabric has a maximum spectral reflectance of 50% or less in a wavelength range of 760 mμ to 2000 mμ. 3. The acrylic bulky knitted woven fabric according to 1 above, wherein the conductive fiber has a specific resistance of 10 to 10 ⁴ Ω · cm.
By doing so, the purpose is achieved.

The details will be described below. The conductive fiber used in the acrylic bulky knitted fabric of the present invention does not contain a metal, but is composed of an acrylic polymer having a solar light selective absorption heat conversion property and conductivity which is essentially an organic compound. Is. Its structure is an acrylic polymer and a polymer having an antistatic property that is miscible but not compatible with the acrylic polymer, for example, preferably a block polyetherester copolymer with a polyalkylene glycol. It consists of a polymer grafted with acrylonitrile (AN), and many antistatic polymers are dispersed and arranged in the acrylic polymer in the form of long and slender stripes along the fiber axis direction. Carbon black fine particles having excellent heat conversion and good conductivity are uniformly dispersed.

Here, the electrical resistivity of the polymer itself obtained by grafting acrylonitrile onto a block polyether ester type copolymer with polyalkylene glycol is 10 ⁷
Ω · cm or less, more preferably 10 ⁵ Ω · cm or less. This polymer itself has a humidity dependency before carbon black is mixed. The mixing ratio of the antistatic polymer and the acrylic polymer is 5 to 40%, more preferably 10% by weight of the antistatic polymer based on the weight of the mixture.
Those blended in an amount of ˜35% are preferable. If the blending amount is less than 5%, the amount of carbon black required for selective solar light absorption and heat conversion characteristics is insufficient and the antistatic property is not sufficient. On the other hand, if it exceeds 40%, the spinnability is deteriorated and the physical properties are good. It is not preferable because a fiber having the following can not be obtained.

[0009] Next, as a substance having a solar light selective absorption heat conversion property and conductivity, a near infrared region (760 mμ ~
Particles having a low spectral reflectance in the wavelength region of 2000 mμ), particularly carbon black particles having the lowest spectral reflectance, are preferable. Particles having an average particle diameter of 0.2 μm or less, more preferably 0.05 μm or less are used. The blending ratio of carbon black particles is about 15 to 150% by weight based on the antistatic polymer before containing carbon black, and about 2 to 20% based on the weight of fiber, and further 4 to 15%.
% Is preferred. When it is less than the above weight range, the ability to selectively absorb heat of sunlight and the antistatic ability are insufficient, and when it exceeds this range, the mechanical properties of the fiber are deteriorated, which is not preferable.

The above-mentioned carbon black-containing conductive fiber is prepared by mixing a carbon black-containing antistatic polymer in an acrylic polymer to produce various known acrylic fibers, such as wet spinning, dry spinning and dry wet spinning. Can be manufactured by. What is important here is that the carbon black-containing antistatic polymer is dispersed and oriented in a streak pattern in the acrylic polymer, and the carbon black particles are present in a streak pattern in the acrylic fiber. Fibers with a structure in which carbon black particles are uniformly dispersed in an acrylic polymer require an extremely large amount of carbon black particles to be added in order to improve antistatic property, resulting in a decrease in spinnability and easy removal of carbon black particles. It causes problems such as

Further, there is a problem that the obtained fiber looks very black and the washing resistance is extremely poor. That is, only when the carbon black particles are present in a streak shape in the acrylic fiber, the sunlight selective absorption heat conversion ability and the electrical conductivity can be preserved in good balance. The fibers thus obtained which selectively absorb heat of sunlight and change their heat, and which are electrically conductive, are usually black due to carbon black particles.
Incidentally, what is called antistatic property is that the electrical resistivity of the fiber bundle is about 10 ⁶ Ω · cm to ^{10 10} Ω · cm, which is insufficient as the conductive performance intended by the present invention. .

The fineness of the carbon black-containing conductive fibers used in the present invention is the fineness of ordinary clothing fibers 1
10 to 10 denier, preferably 1.5 to 7 denier. Further, the carbon black-containing conductive fiber used, the antistatic polymer containing carbon black particles, consisting of carbon black-containing acrylic fiber at least partially exposed in the fiber surface layer, the electrical resistivity of the carbon black-containing fiber is It is 10 to 10 ⁶ Ω · cm, more preferably 10 to 10 ⁴ Ω · cm. Electrical resistivity is 1
When it is less than 0 Ω · cm, the conductivity is insufficient. It is generally difficult to exceed 10 ⁶ Ω · cm. Further, a basis weight 2 knitted with a spun yarn consisting of the conductive fiber only.
The maximum spectral reflectance of the tubular knitted fabric of 00 g / m ² in the wavelength range of 760 mμ to 2000 mμ is 10% or less, preferably 5% or less, more preferably 3% or less. When the maximum spectral reflectance exceeds 10%, it is difficult to make the bulky knitted fabric excellent in both the heat retaining effect and the electrostatic property.

The acrylic bulky knitted fabric of the present invention is a bulky yarn comprising a high shrinkage fiber having a boiling water shrinkage of 8% or more and a low shrinkage fiber having a boiling water shrinkage of 3% or less. 3 to 50% by weight of the low-shrinkable fiber is mixed with the conductive fiber. The boiling water shrinkage of the highly shrinkable fiber used in the present invention is preferably 8 to 35%, more preferably 10 to 25%. If the boiling water shrinkage is 8% or less, a bulky knitted fabric cannot be obtained. On the other hand, boiling water shrinkage is 35%
If it exceeds, the bulky yarn is likely to have a semi-wing structure (two-layer structure), and the texture of the bulky knitted fabric obtained is deteriorated. When the boiling water shrinkage ratio is 10 to 25%, it is possible to easily obtain a bulky knitted fabric having a soft texture.

Examples of such highly shrinkable fibers include acrylic staples that have been subjected to secondary stretching after spinning, drying and densification to make them highly shrinkable, or acrylic tow that has been secondary stretched by a turbo stapler and then cut to achieve high shrinkage. A sex sliver is preferably used. Further, a composite fiber can be mentioned as a material that can be used as the highly shrinkable fiber. By adopting the composite fiber, it is possible to improve the bulkiness and the feel by utilizing the crimping developability and the morphological shrinkability. A composite of two polymers having different heat shrinkability in a side-by-side or multi-layer structure can be preferably used in the present invention.

The low shrinkable fiber used in the present invention has a boiling water shrinkage of 3% or less, preferably 0.5 to.
2%. Further, it is important to mix the carbon black-containing conductive fiber in the low shrinkable fiber in an amount of 3 to 50% by weight, preferably 4 to 30% by weight of the low shrinkable fiber. The total amount of carbon black in the bulky knitted fabric is 0.1% by weight or more, preferably 0.2% by weight or more.

When the mixing ratio of the carbon black-containing conductive fiber in the low-shrinkage fiber is less than 3% by weight, both functions of heat absorption and heat insulation for sunlight absorption and antistatic property are insufficient. On the other hand, when the mixing ratio exceeds 50% by weight, not only is there an inconvenience that the types of products using the knitted fabric are limited due to the blackening of the knitted fabric obtained, but also the heat retention and antistatic properties The effect is saturated, and there is a problem of cost increase, which is not preferable. The method of mixing the carbon black-containing conductive fiber in the low-shrinkage fiber is not particularly limited. At the stage of forming a spun yarn using a normal low-shrink fiber, a method of spinning after mixing with a low-shrink fiber raw cotton can be used.

The bulky knitted fabric of the present invention has a frictional electrification voltage of 2 k.
v or less. When the frictional electrification voltage exceeds 2 kv, the clothing on your body in low humidity,
It is impossible to prevent electric shock due to human body electrification, sound of undressing discharge, etc., and it is not possible to have both the functions of heat absorption and heat insulation for sunlight absorption and heat conversion. From the viewpoint of further improving antistatic performance, the triboelectric charge density of the bulky knitted fabric should be 3 μm.
Clone / m ² or less is preferable.

In the bulky knitted woven fabric of the present invention, the high-shrinkage fibers are usually mixed in the range of 80 to 20% by weight, and the low-shrinkage fibers are mixed in the range of 20 to 80% by weight. The fibers shrink to the inner surface of the bulky knitted fabric, and the carbon black-containing conductive fibers mixed in the low-shrinkage fiber are arranged in the outer surface of the bulky knitted fabric in a biased manner. Absorption, especially absorption of wavelengths in the near infrared region of 760 mμ to 2000 mμ is good, and heat conversion efficiency is improved. The bulky knitted woven fabric preferably has a maximum spectral reflectance in this wavelength region of 50% or less, further 40% or less, and further 25% or less.

A specific description will be given below with reference to examples.
The evaluation methods used in the examples are as follows. (1) Solar absorption heat conversion heat retention In a room at 20 ° C. and 65% RH, a white bulb of a reflex lamp 300 W for photography was used as an energy source. Install a temperature sensor (thermocouple) under the evaluation sample,
The reflex lamp was turned on from 25 cm above the sample, and the back surface temperature of the sample was measured after 15 minutes. (2) Spectral reflectance A reflectance at a wavelength of 300 mμ to 1200 mμ was obtained using a spectrophotometer. (3) Electrical resistivity (fiber bundle) About 2000 denier, 10 cm sample is 30% RH, 2
Both ends are grasped in an atmosphere of 0 ° C., the electric resistance (R) of 100 v is measured, and the electric specific resistance (ρ) is obtained by the following formula. ρ (Ω · cm) = (R × denier) / (9 × 10 ⁶ × specific gravity)

(4) Antistatic property (fabric) A. Friction charge density Density of knitted fabric sample with laundry soap "Zab" manufactured by Kao Co., Ltd. for normal home washing (electric washing machine, strong condition, 40 ° C, 5
Min., 0.2% concentration), washed 20 times with air, and used as a test piece of 25 cm in length and 25 cm in width. After placing this in an atmosphere of 20 ° C. and 30% RH for 24 hours or more,
Under this temperature and humidity condition, the acrylic knit is strongly rubbed (10 times per 1 second each time), the test piece is immediately put in a Faraday cage of an appropriate size, and the charge amount of the test piece is measured. The charge amount is converted per 1 m ² of the sample, and this is defined as the triboelectric charge density (μc / m ² ). B. Friction electrification voltage The test piece was repeatedly washed under the same conditions as the triboelectric charge density and left in an atmosphere of 20 ° C. and 30% RH for 24 hours or more, and the rotary body of a rotary static tester (manufactured by Koa Shokai) under this temperature and humidity condition. The test piece was attached to (400 rpm), and the test piece was rubbed with a cotton fabric (gold width No. 3, refined), and the potential (kv) charged to the test piece after 1 minute was measured. Test piece: 8 cm x 5 cm (friction area 4 cm x 25 c
m) Friction piece: 15 cm × 2 cm (tension 500 g) Contact pressure between test piece and friction piece: 2 mm Distance between test piece and collector tube: 12 mm

Reference Example 1 Acrylonitrile (AN) 9
4.2 mol%, dimethyl acrylate 5.5 mol% and sodium methallyl sulfonate 0.3 mol% were solution polymerized in dimethyl sulfoxide (DMSO) to give a solution viscosity of 200
Composition of 25% by weight polyethylene adipate and 75% by weight polyethylene glycol containing 35% by weight of Furnace Black # 40 (manufactured by Mitsubishi Kasei Co., Ltd.) in stock solution (A) having a concentration of 22.5% by weight at Poise / 45 ° C. To block polyetherester (70 parts) having AN (30
Part) graft polymerized DMSO solution of polymer (B)
The amount of furnace black added in the obtained fiber is 7.5.
The carbon black-containing conductive fiber was obtained by the usual mixing and spinning method by mixing so as to have a weight percentage.

When the block polyether ester was mixed and spun with an AN polymer, it had miscibility but no compatibility and was stretched and oriented in a plurality of streaks in the AN single fiber. The obtained fiber has a fineness of 2.5 denier and a dry strength of 2.2 g /
d, dry elongation 27%, knot strength 1.8 g / d, knot elongation 1
0%, boiling water shrinkage rate 1.8%, electrical resistivity 2.1 × 10 ³
It was Ω · cm and did not have temperature / humidity dependency and had good conductivity.

[0023]

[Example 1] 3d x 102 mm variable cut acrylic fiber (Toray "Toleron" boiling water shrinkage 2.1%),
A low-shrinkage fiber prepared by mixing the carbon black-containing conductive fiber shown in Reference Example 1 and a single fiber having a fineness of 3 denier of 50
Using a high shrink sliver (18% boiling water shrinkage) obtained by stretching 1.38 times a 10,000 denier tow (Toray "Trelon") with a turbo stapler, each with a weight ratio of 5
A 2/40 spun yarn was obtained by a conventional method using a ratio of 5: 5: 40. The spun yarn obtained is kneaded to 100 ° C.
After the preheating bulky treatment with the steam of, the bulky treatment was performed with hot water. When this bulky yarn was observed, it was confirmed that the highly shrinkable fibers were present inside and the carbon black-containing conductive fibers were present in large amounts on the surface of the spun yarn. The electrical resistivity of this spun yarn was 1.4 × 10 ⁷ Ω · cm.

A circular knitted fabric was knitted from these spun yarns using an 18G milling machine to obtain a knitted fabric having a basis weight of 215 g / m ² . Measures the sunlight absorption heat exchange heat retention of the knitted fabric, antistatic property, bulkiness,
It shows in Table 1. As is clear from Table 1, the obtained knitted fabric was bulky, had a low spectral reflectance, had good heat absorption by heat absorption by sunlight absorption, and had excellent antistatic properties.

[0025]

Example 2 The same material as in Example 1 was used and a knitted fabric was obtained by the same processing method. However, in Example 1, the use ratio of the low shrinkage fiber component, the carbon black-containing conductive fiber, and the high shrinkage sliver, which is the high shrinkage fiber component, was
The ratio of 55: 5: 40 was changed to the ratio of 40:20:40. When the obtained bulky yarn was observed, it was confirmed that the high shrinkage fibers were present inside and the carbon black-containing conductive fibers were present on the surface of the spun yarn in a large amount, as in Example 1. The electrical resistivity of this spun yarn is 4.5 x 10
It was ⁶ Ω · cm. The sunlight absorption heat exchange heat retention, antistatic property and bulkiness of the obtained knitted fabric were measured and are also shown in Table 1. As is clear from Table 1, the obtained knitted fabric was bulky, had a low spectral reflectance, had good heat absorption by heat absorption by sunlight absorption, and had excellent antistatic properties.

Comparative Example 1 For comparison, the carbon black-containing conductive fiber was not used, and the low shrinkage fiber component and the high shrinkage sliver as the high shrinkage fiber component in Example 1 were used at a ratio of 60:40. A bulky yarn and a knitted fabric were obtained in the same manner as in Example 1 except that the above was used. The electrical resistivity of this spun yarn was 3 × 10 ¹³ Ω · cm, and the solar absorption heat exchange heat retention, antistatic property and bulkiness of the obtained knitted fabric were measured and are also shown in Table 1. As is clear from Table 1, the obtained knitted fabric was bulky, but had a high spectral reflectance, poor sunlight absorption heat exchange heat retention, and poor antistatic property.

[0027]

[Table 1] Note: 1. The maximum spectral reflectance and the cloth back temperature are related to the heat absorption and heat retention of sunlight absorption. 2. Friction voltage and charge density are related to antistatic property.

Reference Example 2 Using only the same 3d × 102 mm variable cut acrylic fiber (Toray “Trelon” boiling water shrinkage 2.1%) that is a part of the material used in Example 1, an example 198 g / m ² of basis weight in the same manner as 1
Knitted fabric A was obtained. Similarly, a knitted fabric B having a basis weight of 201 g / m ² was obtained using only the carbon black-containing conductive fibers shown in Reference Example 1, which were the same as the materials used in Example 1. The knitted fabric A and the knitted fabric B were superposed one on top of the other and the solar heat absorption heat retention was measured, and the results are shown in Table 2. As shown in Table 2, it is clear that when the carbon black-containing conductive fiber is in the upper layer, the maximum spectral reflectance is low and the heat conversion heat retention is good.

[0029]

[Table 2]

[0030]

[Example 3] and [Comparative Example 2] 3d x 102 mm variable cut acrylic fiber (Toray "Toleron" boiling water shrinkage 2.1%) and the carbon black-containing conductive fiber shown in Reference Example 1 were mixed. Shrinkable fibers and highly shrinkable raw cotton obtained by spinning, drying and densifying and then steam drawing (3d x 102 mm variable cut)
2/40 spun yarn was obtained by a conventional method by using each of them in a weight ratio of 60: 5: 35. At this time, high shrinkage raw cotton with different boiling water shrinkages of 12% and 22% were prepared and used. For comparison, a high shrink raw cotton with a boiling water shrinkage of 6% was prepared and used. (Comparative Example 2) The obtained spun yarn was formed into a skein shape and bulked.

Observation of this bulky yarn revealed that the highly shrinkable fiber was present in the interior and the carbon black-containing conductive fiber was mostly present on the surface of the spun yarn, and the spun yarn using a highly shrinkable raw cotton having a high boiling water shrinkage ratio. However, the conductive fibers containing carbon black were often found on the spun yarn surface portion. These spun yarns were knitted in the same manner as in Example 1 to obtain a knitted fabric having a basis weight of 200 g / m ² . The solar absorption heat exchange heat retention of the knitted fabric, the electrostatic property, and the bulkiness were measured and shown in Table 3. As is clear from Table 3,
The knitted fabric obtained by using the high-shrink raw cotton was bulky, had a low spectral reflectance, good heat absorption by sunlight absorption heat exchange, and excellent electrostatic properties. If the value is insufficient, the bulkiness is poor, and problems remain in the heat absorption and heat retention properties of sunlight absorption and heat exchange.

[0032]

[Table 3] Note: 1. The maximum spectral reflectance and the cloth back temperature are related to the heat absorption and heat retention of sunlight absorption. 2. Triboelectricity and charge density are related to antistatic property.

[0033]

The acrylic bulky knitted fabric according to the present invention has a knitted fabric structure capable of positively and easily absorbing the near infrared rays of sunlight, and thus enhances the heat retention of the back face of the knitted fabric,
It can be maintained and has excellent antistatic property in low humidity environment. Therefore, it is suitable as a material for high-class winter clothes, sports and leisure clothes, especially in a low temperature and low humidity environment.
Thus, the present invention provides industrially excellent effects.

Claims (3)

[Claims] 1. A knitted woven fabric is composed of bulky yarns composed of highly shrinkable fibers having a boiling water shrinkage of 8% to 35% and low shrinkage fibers having a boiling water shrinkage of 3% or less. In the low-shrinkage rate fibers, conductive fibers are mixed in an amount of 3 to 50% by weight based on the total fibers, and the conductive fibers have carbon black-containing antistatic polymer oriented in a single fiber in a streak pattern. The antistatic polymer is made of acrylic fiber at least partially exposed on the fiber surface, and the electrical resistivity of the conductive fiber is 10 to 10.
760 m of a tubular knitted fabric having a basis weight of 200 g / m ² which is 10 ⁶ Ω · cm and is knitted with a spun yarn composed of only the conductive fibers.
The maximum spectral reflectance in the wavelength region of μ to 2000 mμ is 10% or less, and the total amount of carbon black contained in the knitted fabric is 0.1% by weight or more. An acrylic bulky knitted woven fabric in which fibers are unevenly arranged and a frictional electrification voltage is 2 kv or less. 2. The acrylic bulky knitted woven fabric according to claim 1, wherein the knitted woven fabric has a maximum spectral reflectance of 50% or less in a wavelength range of 760 mμ to 2000 mμ. 3. The specific resistance of the conductive fiber is 10 to 10 ⁴ Ω · c.
The acrylic bulky knitted woven fabric according to claim 1, which is m.