JP3202812B2 - Manufacturing method of conductive clothing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive garment subjected to an antistatic treatment and a method for producing the same.

[0002]

2. Description of the Related Art In a clean room of an IC manufacturing plant or in a place where flammable substances are handled, when wearing clothes charged with static electricity and performing work, dust adhering to the clothes due to static electricity is generated. There is a possibility that the inside of the clean room may be contaminated, or the IC may be damaged by electrostatic discharge, or a spark of discharge may ignite a flammable substance and cause an explosion accident or fire. For this reason, in IC manufacturing factories and places where flammable substances are handled, workers usually wear clothing provided with conductivity so that static electricity is not charged.

[0003] Conventionally, in order to manufacture clothing having conductivity, clothing has been woven using a fiber base in which ultrafine stainless fibers having a diameter of about 10 to 15 µm have been folded. Although the fiber base with folded is excellent in durability in the non-bent state, weaving is complicated,
In addition, there are disadvantages such as poor bending resistance. In particular, it could not be applied to clothing that requires flexibility and elasticity, such as gloves, socks, hair bands, and supporters.

A method of imparting conductivity to fibers by a copper sulfide method is also known. However, when conductivity is imparted by such a method, copper sulfide of an inorganic compound adheres to fibers in the form of ultrafine particles. Therefore, there is a problem that the elasticity of the fiber is hindered. For this reason, in the case of manufacturing clothing requiring elasticity such as gloves, for example, acrylic fibers (woolly-processed yarn) are converted into conductive fibers by a copper sulfide method and then converted into one conductive acrylic fiber. On the other hand, it has been attempted to obtain a product having relatively excellent elasticity and fit by using a twisted yarn obtained by twisting about three elastic wooly nylon fibers.

However, such yarns are not only non-uniform twisted yarns due to the twisted yarns of different materials having remarkably different elasticities, but also require a complicated twisted yarn process, so that their production is very complicated. The resulting product is expensive, and the conductivity of the product is not always sufficient because the ratio of conductive fibers contained in the product is low. In addition, the conductive fiber obtained by the copper sulfide method has poor conductive washing resistance, and is treated with a softener to improve knitting, or washed to remove knitting oil after finishing the product. However, there is a problem that the conductivity is reduced even by the above. Moreover,
Since fine particles of copper sulfide existed on the surface of the fiber, they were extremely easy to generate dust, and could not be used as gloves for work in a clean room.

On the other hand, there has been proposed a method of imparting conductivity by polymerizing a pyrrole compound to form a composite with a fiber. In this method, for example, the fiber surface is coated with a pyrrole-based polymer by contacting the fiber with a pyrrole-based monomer in the presence of an oxidizing polymer to polymerize the pyrrole-based monomer, A part or all of the fibers can be impregnated into fibers to obtain conductive fibers which are composited with the fibers (for example, Japanese Patent Application No. 2-4 / 1990).
No. 6832). Clothing using the fiber which has been made conductive by this method does not have a risk of generating dust unlike the conductive fiber obtained by the copper sulfide method.

[0007] However, many methods have been proposed for imparting conductivity by polymerizing a pyrrole compound to form a composite with a fiber, both in a gas phase method and a wet method. In the case, there is a problem that the sufficient polymerizability of the pyrrole polymer on the fiber surface is poor, or the polymerization method itself is impractical, and the method of compounding the pyrrole polymer with the fiber is limited. (That is, the pyrrole-based monomer volatilizes rapidly from the solvent into the air and the polymerization rate is extremely high, so that it is not easy to impart uniform and sufficient conductivity.)

As a method for imparting sufficient conductivity, a fiber base material to be imparted with conductivity is wound around a roll or a cylindrical bobbin in a solution containing a pyrrole-based monomer, and the pyrrole-based monomer is applied to the fiber-based material. There is a method of impregnating the material, polymerizing and compounding the material, and for performing such a method, for example, use of a cheese dyeing machine is suitable.

However, when imparting conductivity to an elastic fiber substrate using a cheese dyeing machine, it is not easy to uniformly wind the elastic fiber substrate around a roll or bobbin. Moreover, since the wound fiber base material is in an elongated state, the elasticity of the fiber base material is reduced after imparting conductivity, and the garment which requires fit from such a fiber base material is required. The product could not be manufactured. Further, similarly to the fiber produced by the copper sulfide method, there is also a problem that the conductivity and durability are reduced by a knitting oil or the like for improving knitting.

In order to impart conductivity with a pyrrole polymer without lowering the stretchability of the stretchable fiber base material, a method of conducting conductivity by a skein dyeing method is considered. In this case, since the processing liquid is sprayed into the air to perform the processing, most of the pyrrole-based monomer in the processing liquid is diffused, and it is difficult to quantitatively perform the conductive treatment.

The present invention has been made in view of the above points, and has as its object to provide a garment having excellent elasticity and conductivity and a method for efficiently producing the conductive garment.

[0012]

In other words, the method for producing a conductive garment of the present invention comprises producing a garment in advance from a fiber base material having elasticity, and then preparing the garment with a pyrrole monomer and an oxidizing agent. The ratio of clothing to processing liquid depends on the processing liquid
Is low so that clothing: treatment liquid = 1: 8 to 1:50
It is characterized in that it is processed in a tally type dyeing machine, and a pyrrole-based polymer is compositely integrated into clothing.

The garment according to the present invention is made of a fiber base material having elasticity and is required to have good fit, such as gloves.
It is a sock, a hair band, a supporter, or the like. The fibrous base material may be any as long as it has elasticity,
The material is not particularly limited.
Fiber substrates having an elongation of 0% or more are preferred. As such a fiber substrate, for example, a natural fiber or a synthetic fiber such as polyurethane, polyamide, polyester, or wool is used alone or in a mixed state, and these fibers are given elasticity by, for example, wooly processing, Alternatively, a core-sheath fiber using polyurethane or the like as a core component may have elasticity.

In order to impart electrical conductivity to an article of clothing made of a fiber base material having elasticity, the article of clothing is brought into contact with a pyrrole-based monomer, and the monomer is polymerized in the presence of an oxidizing polymerizing agent. Combine with product. Pyrrole-based monomers include pyrrole, 3-methylpyrrole, N-
Methyl pyrrole and the like. Examples of the oxidative polymerization agent include permanganic acid or permanganate such as permanganic acid and potassium permanganate; chromic acids such as chromic trioxide; nitrates such as silver nitrate; halogens such as chlorine and bromine; Hydrogen oxide, peroxides such as benzoyl peroxide, peroxoacids (or salts thereof) such as peroxodisulfuric acid, oxygen acids (or salts thereof) such as sodium hypochlorite, and transition metal chlorides such as ferric chloride Or ferric sulfate, potassium persulfate, ammonium persulfate, ferric perchlorate and the like.

In polymerizing a pyrrole-based monomer, a dopant can be used in combination to further improve the conductivity. Examples of the dopant include Lewis acids such as phosphorus pentafluoride, proton acids such as hydrogen chloride and sulfuric acid, and transition metal compounds such as silver perchlorate and silver borofluoride.
Further, among the oxidative polymerization agents, halogens, peroxo acids (salts), and transition metal chlorides also function as dopants. Therefore, when these are used as oxidative polymerization agents, it is not necessary to use them together with the above dopants. When the above dopant is used in combination, the conductivity can be further improved.

A method for polymerizing a pyrrole monomer in the presence of an oxidative polymerization agent by bringing a fiber product into contact with a pyrrole monomer includes the steps of adding a pyrrole monomer, an oxidative polymerization agent and, if necessary, a dopant to a solution containing the monomer. A method in which the textile is treated by immersing it with stirring before being polymerized, the textile is sequentially immersed in a solution containing an oxidative polymerization agent and, if necessary, a dopant, and a solution containing a pyrrole-based monomer while being stirred. And a method in which a fiber product is immersed in a solution to which an oxidizing polymerization agent and, if necessary, a dopant are added while stirring, and then treated by adding a pyrrole-based monomer to the treatment solution.

In these treatment liquids, the concentration of the oxidizing polymerization agent is generally used in an amount of about 3 to 3 times the number of equivalents of the pyrrole-based monomer. The concentration of the pyrrole-based monomer depends on the degree of conductivity to be imparted. It is preferably about 0.01 to 5% by weight. When a dopant is used, the dopant concentration is 1/10 of the number of moles of the pyrrole-based monomer.
The concentration is preferably from 0 to 1/2, and it is preferable to adjust the treatment liquid so as to have such a concentration.

Among the above-mentioned methods, it is preferable to first immerse the fiber product in a solution containing an oxidative polymerization agent for 20 to 60 minutes, and then contact it with a pyrrole monomer. The temperature of the treatment liquid when it is brought into contact with the pyrrole-based monomer is preferably 0 to 40 ° C., particularly 0 ° C. in order to obtain excellent conductivity.
~ 5 ° C is preferred. The immersion time in the processing solution containing the pyrrole-based monomer varies depending on the concentration of the pyrrole-based monomer and the oxidizing polymer, the desired degree of conductivity, the material and form of the fiber product, but is usually about 30 minutes to 3 hours. is there.
The fibers may be dyed prior to the conductive treatment.

In carrying out the present invention, the above treatment is preferably carried out using a rotary dyeing machine. The rotary dyeing machine includes a fixed outer body and an inner body configured to be rotatable in the outer body. The inner body includes a drum type, a washer type, and the like. Either type may be used in the present invention, but a drum type is preferable. In addition, when conducting treatment, the treatment liquid is used in the inner volume of the dyeing machine.
Approximately 90% is injected, preferably about 50% when the inner body is a drum type, and about 60% when the inner body is a washer type. The ratio between the clothing (A) and the treatment liquid (B) is A : B = 1:
8 to 1:50. As described above, the clothing and the processing liquid are put into the dyeing machine, and the inner body is rotated at a rotation speed of 3 to 20 rotations per minute to conduct the conductivity. At this time, the rotation direction can be alternately reversed as necessary. It is preferable that the dyeing machine is filled with an inert gas such as nitrogen.

Water is usually used as a solvent in the processing solution containing the oxidative polymerization agent, the pyrrole-based monomer, the dopant and the like, but aliphatic alcohols can also be used.

In the conductive clothing of the present invention obtained as described above, the surface of the clothing is covered with a pyrrole polymer, or a part or all of the pyrrole polymer is impregnated inside the textile. , But the outer surface has higher conductivity than the inner surface of the product. In addition, the method of the present invention for producing such a conductive garment is substantially impossible to conduct uniformly in the state of a raw yarn, and even if possible, it is extremely irrational. The conductive treatment of the stretchable fiber can be performed very reasonably in the form of a product. In addition, even if the clothing of the present invention is knitted using stretchable fibers, the fabric (whether woven fabric or nonwoven fabric) made of stretchable fibers is sewn, or a high-frequency or ultrasonic welder is used. It may be in the form of clothing by processing or the like.

[0022]

The present invention will be described below in detail with reference to examples. Example 1 A glove knitted from 6-nylon wooly yarn / polyurethane fiber was mixed with 0.067% of a pyrrole-based monomer, 0.36% of an oxidative polymerization agent, 0.18% of a dopant, and 0.02% of polyoxyethylene lauryl ether. Using the treating solution containing the solution, the inner surface of the drum was used to conduct electricity at a rotation ratio of 12 revolutions per minute at a bath ratio of 1:20, a treating solution temperature of 5 to 7 ° C., and a rotary dyeing machine. The gloves having been given conductivity by performing the above treatment are washed (5 minutes) under the following conditions, and then continuously washed with water (2 minutes), dehydrated, washed with water (2 minutes), and hung and dried. I went. After washing several times in this way, the conductivity was measured. Table 1 shows the results. Detergent ・ ・ ・ ・ ・ ・ Neutral detergent (Monogen Uni: Procter & Gamble Far East, Inc.) 2
g / l Bath ratio: 30: 1 (washing liquid: gloves) Liquid temperature: 40 ° C

Example 2 A glove was produced from a non-woven fabric made of polyurethane fiber by welding, and made conductive under the same conditions as in Example 1. The gloves thus imparted with conductivity were washed under the same conditions as in Example 1, and then the conductivity was measured. The results are shown in Table 1.

COMPARATIVE EXAMPLE 1 A glove using a yarn obtained by cross-twisting a 50 denier acrylic fiber made conductive with copper sulfide and a 150 denier (50 denier × 3) wooly processed yarn (high elongation type) Was washed under the same conditions as in Example 1 and the conductivity was measured. The results are shown in Table 1.

[0025]

[Table 1]

[0026]

The present invention relates to a fiber base material having elasticity.
Clothing in advance, and then the clothing is
Apparel and processing can be carried out with a processing solution containing nomers and oxidizing agents.
The ratio with the liquid will be clothing: processing liquid = 1: 8 to 1:50
Processed in a rotary dyeing machine
For obtaining conductive clothing by compounding garment with clothing
Because it adopts, it is possible to effectively and effectively impart conductivity to the surface of a product requiring conductivity without impairing the stretchability of clothing , and has excellent conductivity and stretchability Clothing can be obtained efficiently.

Claims (1)

(57) [Claims] 1. An article of clothing is produced in advance from an elastic fiber base material, and then the article of clothing is treated with a treatment liquid containing a pyrrole-based monomer and an oxidizing agent so that the ratio of the article of clothing to the treatment liquid is reduced.
Clothing: rotor so that treatment liquid = 1: 8 to 1:50
A method for producing a conductive garment, wherein the garment is treated in a Lee-type dyeing machine, and the pyrrole-based polymer is integrated into the garment.