JPS58203168A - Production of anti-static carpet - 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 a carpet with durable electrical training performance.

Conventional synthetic fiber carpets have piles made of natural fibers such as wool.When walking on a carpet, the human body is charged with static electricity generated by the friction between the sole of the shoe and the carpet, causing the human body to become If you come into contact with a doorknob, the static electricity charged in your body may be discharged, giving you a severe electric shock.

In order to solve this problem, it is known to mix conductive fibers in the pile part of carpets. 11 applied with the blended Bolimar Dove! Fibers containing fibers and carbon black have been proposed.

However, all of these conventional conductive fibers have serious drawbacks and are not satisfactory. for example,
Since the fibers do not have bending recovery properties, their conductive performance deteriorates due to bending during use or processing, and they cannot be easily mixed with other fibers.

Since it is necessary to form a uniform, smooth, and continuous plating layer on the surface of the honeydew plated fibers, the fiber surface must be smooth, which greatly limits the types of fibers that can be applied. In addition, it has many drawbacks, such as the plating layer being easily peeled off during use or processing, low durability, and exhibiting a color tone unique to gold JIi.

Fibers coated with a polymer dope containing a conductive substance also have the same drawbacks as the above-mentioned gold maple plated fibers in terms of peeling and the like.

For carbon black-containing fibers to exhibit electrical conductivity, it is necessary to knead more than 15 weight t* of carbon black into the polymer.

Methods have also been proposed, such as adding carbon edge wire □ to the fabric, backing material, and fabric, or mixing conductive fibers only to the base fabric, but these methods have the drawback of limited antistatic performance.

As a result of intensive studies aimed at improving these drawbacks, we have arrived at the present invention.

That is, the present invention provides a method for lowering the surface of the carpet.
This is a method for producing an antistatic carpet, which is characterized in that a composition mainly containing a compound represented by formula (1) is applied and then crosslinked.

The carpet in this invention is polyester.

Synthesis I consisting of polyamide, polyolefin, polyacronitrile, etc.]! It may be made of fiber, and may also be made of cotton,
It may be made of natural fibers such as wool or linen, or it may be a mixture of these fibers. Particularly good results can be obtained when the fiber is mainly composed of polyester synthetic fiber.

Further, the carpet used in the present invention may be a loop carpet or a cut carpet.

In the present invention, the main compound of the composition applied to the carpet surface is a compound represented by the following general formula (1).

Specifically, the following compounds can be mentioned.

Eteleglycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, dithelene glycol methacrylate,
In addition, compounds having the following structural formulas are also effective: - At least one polymerizable compound in the molecule as a second component within the range that does not impair the effects of the object 1 of the present invention for the living body compound described below. Contains a double bond, and at the same time has anti-static, sweat-absorbing,
Antifouling, water absorption, and moisture absorption.

Water repellent, oil repellent, anti-pill, anti-snag, flame retardant, anti-melt.

Compounds that also have functional groups such as antibacterial properties may be added.

One method for applying the composition of the present invention to the carpet surface is to apply it alone or in the form of a solution or emulsion to the carpet surface using a conventionally known method such as a spray method or a gravure coating method. be able to. The thickness of the application layer can be appropriately selected depending on the application method. Generally, about 0.1 to 2', 4 is preferable.

In addition, before applying the composition to the carpet surface, it is preferable to activate the carpet surface in advance by subjecting it to physical treatment or chemical treatment such as radiation irradiation, ultraviolet irradiation, or electric discharge. Even if the material has already been treated by, for example, water repellent treatment, softening treatment, etc., it is possible to further apply antistatic property imparting treatment using this method.

In order to carry out the crosslinking treatment of the present invention, methods such as heating, radiation irradiation, ultraviolet irradiation, and electric discharge can be employed. The amount of time required for cross-linking, such as the one hour outside the prefecture, can be determined experimentally depending on the type of carpet and the format of the carpet.
For curing, heat at 80-150℃ for 5-30 minutes.
In the case of ultraviolet irradiation, it is preferable to perform the treatment for 1 to 30 seconds at a position 10 to 20 cm Fi away from a 40 to 80 W/cm lamp.

In the case of thermal curing, it is preferable to add a thermal reaction initiator such as azobisisobutyronitrile or benzoyl peroxide to the set-parabolite. When crosslinking is carried out using ultraviolet light, it is preferable to add a sensitizer such as dunzophenone, benzoin, benzyl, etc. to speed up the reaction.

The amount of the composition adhered to the carpet surface varies depending on the content of the composition or the condition of the carpet surface, depending on the intended purpose. 1t11iiIt varies depending on the degree of performance,
- 0.5 to 1002 t per - preferably 5 to 30 t per t
It is.

The car vent thus obtained has a high antistatic performance without the drawbacks of the conventional ones.

Hereinafter, the present invention will be specifically illustrated with reference to Examples.

Example 1 A solution containing 3 parts by weight of benzophenone as an ultraviolet sensitizer was applied to the surface of a loop carpet made of polyethylene terephthalate fibers by gravure coating. The amount given is Karpela) 1ty? It was 10 f. An ultraviolet lamp with a power consumption of 80 W/crn was installed at a position 2 Go++ far away from the carpet, and the ultraviolet rays were irradiated by passing through the carpet at a distance of 3 Go ++ to prepare a sample.

In order to conduct an electrical training durability test on this carpet, the following surface abrasion acceleration test and human body charge potential measurement were conducted on an untreated carpet (comparative example) and a carpet subjected to the above treatment (example) K.

Accelerated surface abrasion test In order to conduct an antistatic durability test on this carpet, two pieces of cowhide leather with a width of 4 meters, a width of 25 meters, and a length of 300 mm were used.
They were fixed parallel to each other with an interval of .

A friction element was prepared, cut to a size of 70 crn x 40 cm, placed on top of the carpet sample, and...-A load of this friction element KIOKI was applied to it and a power of 40 W was applied for 50 crn.
The reciprocating motion continued for t-4 hours to accelerate the wear of the carpet surface.

Measurement of hip position *Carpet samples before and after wear at 20℃, 30% belly, 24 hours
After soaking for 14 hours, the human body #itt position was measured when walking on a carpet at the same temperature and humidity.
-1401 model).

Measurements were made using the JTSL-1021-1974 reference method, using an insulated floor, and using the parallel method and the kosu-sho method.

The evaluation results showed that total sugar was 1.

Claims (1)

[Claims] A method for producing an antistatic carpet, which comprises applying a composition mainly composed of a compound represented by the following general formula (1) to the surface of the carpet, and then subjecting the carpet to a crosslinking treatment.