JPH0118165B2 - - Google Patents

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 and organic drug factories, static electricity causes spark discharge, causing major disasters such as dust explosions and solvent ignition.

In order to prevent this static build-up, the object that rubs against it is usually made electrically conductive so that the charge dissipates quickly.In the case of work gloves, the surface of the glove is made electrically conductive. Antistatic agents have been applied to the surface of gloves by dipping, spraying, coating, etc. to prevent static electricity.

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

The present invention was developed in conjunction with the development of conductive fibers that dissipate electric charges through corona discharge (Japanese Patent Application No.
124398, JP-A-55-51873), the object of the present invention is to provide a method for manufacturing synthetic resin or rubber antistatic gloves in which the conductive fibers are firmly attached to the synthetic resin or rubber gloves.

That is, in the present invention, short conductive fibers are mixed with synthetic resin or rubber, melted or solidified, and then pulverized to obtain fine particles with conductive short fibers appearing on the surface, and these fine particles are synthesized. When the surface of the resin or rubber glove base is in a sticky gel state, it is adhered to the surface of the glove base 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: Nippon Kasuke 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.

In addition, those with metal plating on the fiber surface,
The present invention can also be practiced with other conductive fibers kneaded into metal polymers.

Conductive fibers are short fibers with a fiber length of 0.3 mm to 5 mm2.
The short fibers 2 are mixed in a ratio of 5 to 30 parts with respect to 100 parts of synthetic resin or rubber and melted or solidified to obtain a lump containing the short fibers 2. The particle size of this lump is 0.5~
Pulverize to about 3 mm to obtain fine particles 3. The short fibers 2 that did not appear on the surface of the lump due to this crushing appear on the surface of the fine particles 3, making corona discharge possible, and the fine particles 3 serving as a binding material for the short fibers 2 are melted and solidified to form a glove. The short fibers 2 are integrated with the base 1 and firmly adhere to the glove base 1.

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

Further, although the fine particles 3 are usually attached to the entire surface of the glove base 1, they may be attached to a part of the glove base 1 as long as corona discharge is possible.

In the present invention, short conductive fibers 2 are mixed into a synthetic resin or rubber liquid and stirred to produce antistatic gloves using a dipping method. Separately, a synthetic resin or rubber is mixed and melted and solidified, then crushed to form fine particles 3, and these fine particles 3 are attached to the surface of the glove base 1 while the surface of the glove base 1 is still in a gel state. Totsuta. 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 pulverizing a lump containing conductive short fibers, the short fibers contained therein are necessarily exposed on the surface of the fine particles, making it possible to cause corona discharge, and also to reduce the short fibers. Instead of attaching directly to the glove base, fine particles mixed with short fibers are prepared in advance, and these fine particles are melted or heat-fixed to the glove base.
The short fibers firmly adhere to the glove base, and it is possible to provide an antistatic glove in which the short fibers do not separate from the glove.

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

Example 1 After mixing 15 parts of conductive short fibers cut into 0.3 to 1 mm pieces (product name: Thunderon; Nippon Kasmo Dyeing Co., Ltd.) into 100 parts of plastisol, the mixture was melted and solidified to contain conductive short fibers. A vinyl chloride resin mass is obtained. This vinyl chloride resin lump is pulverized to a particle size of about 1 mm to obtain fine particles having conductive short fibers on the surface. After applying these fine particles to almost the entire surface of the vinyl chloride resin glove base using an electrostatic flocking machine (manufacturer name: Kasuga Denki) when the surface of the vinyl chloride resin glove base is in a sticky gel state. , and heated at 200°C for 15 minutes to obtain antistatic gloves with conductive short fibers firmly attached to the surface.

[Brief explanation of drawings]

FIG. 1 is a front view, and FIG. 2 is a partial sectional view of FIG. 1. A... Antistatic gloves, 1... Glove base, 2...
Short fiber, 3...fine particles, 4...knitted fabric.

Claims (1)

[Claims] 1. Short fibers of conductive fibers are mixed with synthetic resin or rubber, melted and solidified, and then crushed to obtain fine particles with conductive short fibers on the surface. These fine particles are mixed with synthetic resin or rubber. A method for producing antistatic gloves made of synthetic resin or rubber, which comprises adhering to the surface of the glove base while the surface of the glove base is still in an adhesive gel state, and then melting or fixing with heat. .