JPH0684589B2 - Far infrared twisted yarn - Google Patents

Description

TECHNICAL FIELD The present invention relates to a far infrared ray twisted yarn, and more specifically, when used for clothing, bedding, packaging, carpets, electric blankets, wall coverings, etc. The present invention relates to a far infrared ray twisted yarn excellent in heating property and the like.

(Prior art and its problems) Conventionally, various woven and non-woven fabrics have been used for the purpose of preventing cold, keeping warm, heating, etc., but most of them are heat insulating materials that prevent body temperature and the like from escaping to the outside. It is working. Further, heating carpets, electric blankets, and the like have also come to be used that utilize heat generated by electric resistance.

However, in the above-mentioned conventional techniques, the heat radiation and the radiation of infrared rays are both shielded or insulated to perform heat insulation and heating, and far infrared rays, which are considered to be the best for human health, are used. It wasn't something.

Therefore, an object of the present invention is to develop means for effectively utilizing far infrared rays in the heat insulation, heat retention, heating, etc. of the prior art as described above.

(Means for Solving Problems) The above object is achieved by the present invention described below.

That is, the present invention, a twisted yarn of natural or synthetic fiber, impregnated with a far-infrared radiation ceramic powder, an aqueous resin emulsion containing a resin binder and a crosslinking agent, then 100 ~ 2
A method for producing a far-infrared twisted yarn, which comprises cross-linking the above resin at a temperature of 00 ° C.

(Function) A natural or synthetic fiber twisted yarn is impregnated and cross-linked with an aqueous resin emulsion containing a far-infrared radiation ceramic powder, a resin binder and a cross-linking agent, so that the texture of the twisted yarn is not impaired and the ceramic particles are prevented from falling off. Far infrared ray twisting yarns that emit no far infrared rays are provided. Further, by weaving these far infrared ray twisted yarns, it is possible to provide clothes, bedding, carpets, electric blankets and the like which are good for human health.

(Preferred embodiment) The natural or synthetic fibers used in the present invention include cotton, hemp,
It is obtained by twisting, knitting or combining single fibers of natural fibers such as silk and wool and synthetic fibers such as nylon, polyester, acryl and vinylon, and any conventionally known twisted yarn can be used in the present invention.

The far-infrared radiation ceramic powder impregnated and fixed to the above twisted yarn includes metal oxides such as silicon oxide, aluminum oxide, zirconium oxide, calcium oxide, magnesium oxide, and boron oxide, carbides such as silicon carbide, boron nitride, and aluminum nitride. It is an inorganic powder that emits far-infrared rays when heated, such as a metal nitride or a mixture thereof.

A preferred method of impregnating and fixing the above far-infrared radiation ceramics powder on the above-mentioned twisted yarn is to pulverize the above-mentioned far-infrared radiation ceramics powder to about 0.1 to 50 μm, and to add this to a printing aqueous resin emulsion containing a resin binder and a crosslinking agent. It is a method in which the above-mentioned twisted yarn is dispersed by dispersing it in the impregnating liquid to form an impregnating liquid, or the above-mentioned twisted yarn is immersed in this impregnating liquid to crosslink and cure the binder.

As the resin binder used in the above impregnating solution, acrylic resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, etc., any of the resin binders used in general printing agents can be used. Can also be used and further contains a curing agent (crosslinking agent) and a catalyst. The concentration of these resin binders is generally preferably such that the impregnating liquid accounts for 5 to 40% by weight. The far-infrared emitting ceramic powder is contained in the impregnating solution in an amount of 5 to 30% by weight, and may include other surfactants. The impregnation liquid has a viscosity of about 500 to 100,000 cps. Such an impregnating liquid can be prepared by dispersing each component by an arbitrary grinding means such as a ball mill or a sand mill.

The impregnated amount of the impregnating liquid is preferably 10 to 300 parts by weight in terms of far-infrared radiation ceramics powder per 100 parts by weight of the twisted yarn, and if the amount is less than this, the object of the present invention is insufficient, and if the amount is more than that, the twisted yarn Is not preferable because it becomes too hard.

After impregnation, the far-infrared radiation ceramics powder is fixed by the cross-linked and cured resin binder by heating at a temperature of 100 to 200 ° C. for about 30 seconds to 10 minutes.

In a preferred embodiment of the present invention, a twisted yarn of a conductive fiber can be used as the twisted yarn. The conductive twisted yarn may be twisted yarn of conductive fiber such as carbon fiber, or may be the above-mentioned natural or synthetic fiber impregnated with a conductive coating material containing conductive carbon or the like in the same manner as described above. By impregnating these conductive twisted yarns with a coating liquid containing far infrared radiation ceramic powder as described above, a far infrared radiation insulating film is formed on the surface of the conductive twisted yarns, and the obtained twisted yarns are formed by an appropriate means. By applying a voltage, it becomes possible to generate heat and emit far infrared rays. When the conductive twisted yarn is used as described above, the impregnation or coating method is the same as described above.

The far-infrared ray twisted yarn of the present invention obtained as described above can be woven or non-woven by refining it or adhering it with an adhesive or the like, and an appropriate ratio with a normal twisted yarn, For example, woven or non-woven fabric by mixing and weaving in a ratio of 10: 1 to 1:10, clothing for cold weather, heat retention, heating, bedding,
It can be used as a packaging material, carpet, blanket, wall covering material, flooring material and the like.

(Example) Next, an Example is given and this invention is demonstrated still more concretely.
In the text, parts and% are based on weight unless otherwise specified.

Example 1 Acrylic ester emulsion (solid content 40%) 30 parts Silicon oxide / aluminum oxide 1: 1 powder (average particle size 3 μ
m) 25 parts Defoamer 0.5 part Dispersant 1 part Daimonex EH-6 (Dainichi Seika) 3 parts Turpen 15 parts Methanol 8 parts Water 100 parts of the total amount A paste in which the ceramic powder is dispersed according to the above formulation. 1% of ethyleneimine-based cross-linking agent is used together with the white paste, the cotton twisted yarn is immersed in this for 1 minute, then pulled up and cured at 120 ° C. for 15 minutes to obtain the far infrared ray twisted yarn of the present invention. It was

The impregnated amount of the ceramic powder calculated from the weight increase of the obtained far infrared ray twisted yarn was 120 parts per 100 parts of the twisted yarn. When the far infrared ray twisted yarn was heated to 100 ° C. and infrared rays were measured, most of the radiation rays were far infrared rays.

Example 2 The same cotton twisted yarn as in Example 1 was impregnated with a conductive paint containing conductive carbon and dried by heating to obtain a conductive twisted yarn. This conductive twisted yarn was immersed in the impregnating liquid of Example 1 for 1 minute and pulled up,
It was heated and dried in the same manner as in Example 1 to obtain a far infrared ray twisted yarn of the present invention. Electrodes were provided at both ends of this twisted yarn, electricity was applied, and the generated infrared rays were examined. As a result, most were far infrared rays.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 62-110984 (JP, A) JP 61-12908 (JP, A) JP 63-42970 (JP, A) JP 63- 249781 (JP, A) JP 63-270865 (JP, A) JP 61-266666 (JP, A) JP 60-239563 (JP, A) Actual development JP 63-145893 (JP, U)

Claims (2)

[Claims] 1. A natural or synthetic fiber twisted yarn is impregnated with an aqueous resin emulsion containing far-infrared radiation ceramic powder, a resin binder and a crosslinking agent, and then 100 ° C. to 200 ° C.
A method for producing a far-infrared twisted yarn, which comprises cross-linking the resin at a temperature of. 2. The method for producing a far-infrared twisted yarn according to claim 1, wherein the twisted yarn is conductive.