JPH023865Y2 - - Google Patents

Description

[Detailed description of the invention] "Purpose of the invention" This invention relates to the invention of a material for dust-free clothing, which does not have electrostatic damage such as electric shock, and has dust-free, dust-proof, and antistatic properties. The aim is to provide a material from which dust-free clothing with excellent comfort and chemical resistance can be obtained.

Industrial fields of use: Materials for obtaining dust-free clothing in medical, chemical, or electronic industries.

Conventional technology Dust-free clothing, including hats, gloves, footwear, and other equipment is often required in the medical and various chemical and electronic industries that require high precision. has traditionally been manufactured using textiles.

Problems that the invention aims to solve: However, it is clear that the conventional dust-free clothing mentioned above has countless through-holes between the fibers, which has the disadvantage of allowing dust to pass through, and also causing dust to be generated in the fibers themselves. It has dust properties. Therefore, even if it is called a clean garment, in reality it cannot help but be incomplete.

``Structure of the invention'' Means for solving the problem The invention is characterized by disposing stainless steel fibers or other conductive fibers between the surface layer made of a stretched porous polytetrafluoroethylene film and the base layer and bonding them together. Material for dust-free clothing.

Function The stretched porous polytetrafluoroethylene film is a material that ensures dust-free and dust-proof properties. We also provide comfortable clothing that is waterproof and breathable.

The base layer reinforces the above-mentioned stretched porous polytetrafluoroethylene film and stably arranges and holds conductive fibers such as stainless steel fibers between it and the surface layer.

When the conductive fibers arranged as described above are electrostatically charged due to friction of the clothing made of the material, corona discharge occurs and the electrostatic charge is removed.

In addition, although it is waterproof, it has moisture permeability, is comfortable to wear, and has excellent chemical resistance.

EXAMPLE To explain the specific embodiment of the invention as described above, as shown in the attached drawings, the present inventors have repeatedly studied the possibility of obtaining a dust-free garment as described above, and have developed a continuous porous garment. We have found that polytetrafluoroethylene membrane is a preferred material for this purpose. That is, some specific examples of the structure of a continuous porous film produced by stretching polytetrafluoroethylene are as shown in FIGS. Figure 1 shows the case where it is stretched in multiple directions, and Figure 2 shows the case where it is stretched in one direction, but in either case, the maximum diameter is 0.01. ~
It is fine, about 0.5 μm, and does not generate dust in itself, and because of its fine structure, it has excellent dust resistance.

However, after repeated studies on how to properly laminate such fabrics to obtain the above-mentioned dust-free clothing, it was found that since it is an insulating material, static electricity generated by contact with other objects may cause electrostatic shocks and other electrostatic shocks, as well as dust adsorption phenomena. It was confirmed that the above-mentioned characteristics cannot be fully utilized. Therefore, in the present invention, after further investigation, the stretched porous polytetrafluoroethylene film 1 as described above was used as a third film.
In addition to forming the surface layer as shown in the figure, conductive fibers 3 such as stainless steel fibers are arranged between the base layer 2 which is a separately prepared suitable knitted fabric or a stretched porous polytetrafluoroethylene resin film. The conductive fibers are preferably bonded together by laminating or the like.
Arrange them parallel to each other at equal intervals as shown in the figure. That is, even if the film 1, which is an insulating material, is charged with static electricity due to frictional contact or the like, it can cause corona discharge and quickly remove the charged charge, and has no dust generation.
It can be obtained as a material that is dustproof and has antistatic properties.

``Effects of the invention'' The invention as explained above eliminates static electricity disturbances such as electric shock in this kind of dust-free clothing, and imparts not only dust-free and dust-proof properties but also desirable anti-static properties. As a result, it is possible to ensure excellent dust-free properties, so this is a highly effective idea in practical terms.

[Brief explanation of the drawing]

The drawings show embodiments of the invention,
Figures 1 and 2 are enlarged explanatory diagrams showing the structure of the stretched porous polytetrafluoroethylene film used in the present invention, and Figure 3 is a partially stepwise cutaway plan view of the material according to the present invention. . In these drawings, 1 is a stretched porous polytetrafluoroethylene film, 2 is a base layer, 3 is a conductive fiber, 11 is a micro nodule,
Reference numeral 12 indicates fine fibers, and reference numeral 13 indicates pores.

Claims (1)

[Scope of utility model registration request] A material for dust-free clothing, characterized in that stainless steel fibers or other conductive fibers are arranged between a surface layer made of a stretched porous polytetrafluoroethylene film and a base layer, and are integrally bonded together.