JPS58220804A - Production of synthetic resin or rubber antistatic glove - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing synthetic resin or rubber antistatic gloves.

Synthetic resins or rubber have high electrical insulation resistance and are excellent as insulating materials, but on the other hand, they are easily charged by friction or contact. For this reason, in petrochemical factories, organic substitute factories, etc., static electricity causes spark discharge, causing major disasters such as dust explosions and solvent ignition.

To prevent this static build-up, the objects that rub against each other are made electrically conductive, which accelerates the dissipation of the charge and prevents static build-up.In the case of work gloves, the surface of the gloves is electrically conductive. In order to prevent static electricity, an antistatic agent was applied to the surface of the glove by dipping, spraying, coating, etc.

However, this method has the disadvantage that the antistatic agent is likely to peel off due to washing, friction, etc., and the antistatic function is likely to be lost.

The present invention is based on the fact that conductive fibers that dissipate electric charges due to corona discharge have been developed (Japanese Patent Application No. 124898/1983).
, JP-A-55-51871), this\
1. It is an object of the present invention to provide a method for manufacturing antistatic gloves made of synthetic resin or rubber, in which conductive fibers are firmly attached to the gloves made of synthetic resin or rubber.

That is, the present invention mixes short conductive fibers with synthetic resin or rubber, melts and solidifies them, and then crushes the mixture to obtain fine particles having conductive short fibers on the surface.
These fine particles are adhered to the surface of a synthetic resin or rubber glove base while the surface is still in an adhesive gel state, and then melt-fixed or heat-fixed.

The present invention will be explained with reference to the drawings. The conductive fiber used in the present invention is Thunderon (trademark: F3 Honshige Dyeing Co., Ltd.). Thunderon is made by adsorbing metallic copper to acrylic fibers, and various tests have shown that it can eliminate electrical charges through corona discharge. □ Note that the present invention can also be practiced with fibers whose surfaces are plated with metal or other conductive fibers kneaded into metal polymers.

The conductive fibers are cut into short fibers 2 with a fiber length of 0.3 m to 5 m, and the short fibers 2 are made of synthetic resin or rubber.
and melt-solidify or solidify the mixture at a ratio of 5 to 80 parts to obtain a lump containing the short fibers 2. Then, fine particles 8 are obtained by refining this lump to a particle size of about 0.5 to 8 mm. The short fibers 2 that could not be formed on the surface of the agglomerate due to this crushing are formed on the surface of the fine particles 8, making corona discharge possible, and the fine particles 8 as a binding material for the short fibers 2 are melted and solidified to form a glove base. 1
As a result, the short fibers 2 are firmly attached to the glove base 1.

The fine particles 8 are attached to the glove base 1 made of synthetic resin or rubber using an electrostatic flocking machine or a powder spray gun when the surface of the glove base 1 is still sticky in a gel state, and then the glove A to which the fine particles 3 are attached is attached. is heated to melt and fix the fine particles 3 on the surface of the glove base 1.

Furthermore, although the fine particles 8 usually adhere to the entire surface of the glove base 1,
It may be a part of the glove base 1 as long as corona discharge is possible.

In the present invention, the short fibers of conductive fibers are separately synthesized without using the method of mixing the short fibers of conductive fibers 2 into a synthetic resin or rubber liquid and stirring them to produce antistatic gloves by the dipping method. After mixing with resin or rubber and melting and solidifying, this is crushed into fine particles 8, and these fine particles 8 are attached to the surface of the glove base 1 while the surface of the glove base 1 is still in a gel state. Ta. This is because the short fibers 2 are not raised in the dipping method, and the conductive short fibers 2 do not protrude from the surface of the glove A, so that corona discharge does not occur.

As described above, according to the present invention, by crushing the tB-like material containing conductive short fibers, the short fibers contained therein are always deposited on the surface of the fine particles, making corona discharge possible and Instead of directly attaching the short fibers to the glove base, fine particles mixed with short fibers are produced in advance, and these fine particles are melted or heated to the glove base, so the short fibers are firmly attached to the glove base. , it is possible to provide antistatic gloves in which short fibers do not separate from the gloves.

Next, the present invention will be explained in more detail with reference to Examples.

Example 1 After mixing 1.5 parts of conductive short fibers cut into 0.3 to 1+o+ (product name: Thunderon; Nippon Chimo Dyeing Co., Ltd.) to 100 parts of plastisol, the mixture was melted and solidified to form a conductive fiber. A vinyl chloride resin film containing short fibers is obtained. This vinyl chloride resin lump is crushed to a particle size of about 1 m to obtain fine particles with conductive short fibers on the surface. When the surface of the vinyl chloride resin glove base is in a sticky gel state, the fine particles are transferred to an electrostatic flocking machine (manufacturer Meiko Kasuga Denki).
After the vinyl chloride resin was applied over almost the entire surface of the glove base, it was heated at 200'C for 15 minutes to obtain an antistatic glove with conductive short fibers firmly attached to the surface.

[Brief explanation of the drawing]

FIG. 1 is a front view, and FIG. 2 is a partial sectional view of FIG. 1. A... Antistatic gloves 1... Glove base 1:. 2... Short fibers 8... Fine particles 4... Knitted fabric patent applicant Towa Glove Co., Ltd. (2 people)
Agent Patent Attorney Katsuhiko Kajihara Figure 1 Figure 2

Claims (1)

[Claims] Short fibers of conductive fibers are mixed with synthetic resin or rubber, melted and solidified, and then crushed to produce fine particles with conductive short fibers on the surface. Then, when the surface of the glove base made of synthetic resin or rubber is still sticky and gel-like, □1: After adhering and stirring the fine particles to the surface of the glove base, melt-fixing or heat-fixing the fine particles. A method for producing synthetic resin or rubber antistatic gloves characterized by: