JPS62298359A - Deodorizing cloth - 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] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a deodorizing fabric for bedding, clothing, etc., which has excellent deodorizing performance.

[Conventional technology]

Traditional bedding and clothing materials, such as duvets, blankets, or socks, are made from natural or man-made fibrous materials such as wool, cotton, polyester, acrylic, nylon, polyurethane, and the like.

[Problem that the invention seeks to solve]

Although these beddings have good heat retention properties and feel good when worn on the skin, they do not sufficiently absorb odor components from the human body, so they emit odor after use for a certain period of time. For this reason, it has been necessary to frequently dry and diffuse it in the sun or remove it by washing.

Furthermore, as society ages, there will be increasing demand for bedding and clothing that do not require frequent replacement.

The present invention addresses these problems and challenges by providing bedding, clothing, etc. that uses ion-exchange fibers as a material and has a deodorizing function in addition to conventional heat retention and a comfortable feeling when worn on the skin. It is.

[Means for solving problems]

The present invention is a deodorizing fabric characterized in that at least a part of the material is made up of ion exchange fibers obtained by supporting an ion exchanger on natural fibers or artificial fibers.

In the present invention, the above-mentioned fabrics include futons, blankets, sheets, underwear, socks, shoe pads, and curtains.

Diapers 8. Sanitary products and other clothing worn by humans, livestock, etc., or used inside houses, and refers to daily necessities that are contaminated with sweat, grime, etc. emitted by humans and livestock. .

Hereinafter, the present invention will be explained in detail using a futon as an example.

First, to explain ion exchange fibers, they are natural fibers, man-made fibers (chemical fibers or synthetic fibers), or blended yarns or mixed yarns of these fibers that support cation exchangers and/or anion exchangers. The material may be directly supported on a fibrous support, or it may be formed into a woven, knitted or flocked form and then supported thereon. In any case, it is sufficient that the fiber ultimately supports the ion exchanger.

Now, the natural fibers can be wool, silk, etc., the chemical fibers can be rayon or acetate, and the synthetic fibers can be those made from hydrocarbon polymers or fluorine-containing polymers. or polyvinyl alcohol, polyamide, polyester, polyacrylonitrile, cellulose, cellulose acetate, etc.

The hydrocarbon polymers include aliphatic and aromatic polymers such as polyethylene, polypropylene, polybutylene, polybutene, postyrene, polyα-methylstyrene, polyvinylcyclohexane, polyvinyl alcohol, polyamide, cellulose, cellulose acetate, polyester, acrylic, and polyurethane. Group-based or alicyclic-based polymers or copolymers thereof are used.

In addition, examples of the fluorine-containing polymer include polytetrafluoroethylene, polyvinylidene fluoride, ethylene-tetrafluoroethylene copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, and vinylidene fluoride-polyfluoride copolymer. Polypropylene copolymer and the like are used.

Furthermore, fibers made from natural materials such as wool, silk, cotton, and linen can also be used.

A mixture of the above raw materials may also be used.

These materials, that is, the supports are used as porous materials, which can be easily grafted, have high mechanical strength, and are resistant to insects and mold with little shedding or generation of fiber waste. It is fine as long as it is a material that does not generate
Although it can be selected appropriately in consideration of usage, economy, effectiveness, etc., polyester, wool, nylon, acrylic, and polyurethane are generally preferred.

As for the shape, for example, a nonwoven fabric, an appropriate thin film cloth, a woven fabric, or a fibrous shape is used as appropriate, and in general, the larger the porosity (apparent specific gravity), the better from the viewpoint of heat retention, feeling of wearing (touch), etc. (Although the porosity is used at about 50 to 90%, it can be set as appropriate in consideration of the type, shape, effect, economy, etc. of the product.

Next, as the ion exchanger, various cation exchangers or anion exchangers can be used without particular limitation.

For example, bodies containing cation exchange groups such as carboxyl groups, sulfonic acid groups, phosphoric acid groups, and phenolic hydroxyl groups, and anion exchangers such as primary to tertiary amino groups, quaternary ammonium groups, sulfonium groups, and phosphonium groups. Examples include group-containing bodies, or polymerized or condensed type ion exchangers containing both the positive and negative ion exchange groups, and homogeneous or heterogeneous types.

Representative examples of these include condensation polymers of sodium phenolsulfonate and aldehydes or ketones; condensation polymers of aromatic amines and aldehydes or ketones; acrylic acid, methacrylic acid, vinylbenzenesulfonic acid, styrene, ar-halomethyl Styrene, acyloxystyrene, hydroxystyrene, aminostyrene, vinylpyridine, 2-methyl-5-vinylpyridine, 2-methyl-
5 = Polymers of monomers having cationic or anionic exchange groups such as vinylimidazole, acrylonitrile, sulfuric acid, chlorosulfonic acid, sulfonic acid, or groups convertible thereto0, 4 Also, the above monomers and divinylbenzene, trivinyl Copolymers with two or more double viscosity monomers such as benzene, butadiene, ethylene glycol, divinyl ether, and ethylene glycol dimethacrylate, or graft polymerization of styrene onto polyethylene, polyvinyl fluorocarbon ether, and polytetrafluoroethylene. There are ion exchangers formed by introducing cationic and/or anionic ion exchange groups or converting them into ion exchange groups as necessary into polymers and the like.

Next, as a method for supporting the ion exchanger on the support, for example, the support may be exposed to ultraviolet rays, α rays, β rays, electron beams, γ rays, etc.
irradiate with ionizing radiation such as radiation, or use oxygen, ozone,
Chlorsulfonic acid, hydrogen peroxide, penzoyl peroxide,
There is a method in which a monomer that forms an ion exchanger is grafted and supported by treatment with an oxidizing agent such as peracetic acid.

Among these treatments, radiation irradiation, particularly a method using an electron beam or cobalt-60 as a radiation source, is effective and preferred.

Specifically, for example, after irradiating polyester (support) with an electron beam, a graft polymer is obtained by reacting with an aqueous solution of acrylic acid or methacrylic acid, and then treated with an aqueous solution of sodium hydroxide to form an ion exchange fiber. can get.

In this way, fibrous anion exchange fibers and cation exchange fibers are obtained.

The diameter of the ion exchange fiber is 1 to 100 μm, preferably 5 to 200 μm, and can be determined as appropriate depending on the type of product, use, etc.

When manufacturing futons, ion exchange fibers can be used in their original form. In other words, in the case of a futon, as shown in the drawing, the contents (futon cotton) are made by mixing ion-exchange fibers with ordinary fibrous substances such as wool and polyester in an appropriate ratio, and the futon cover (ordinary materials, For example, it may be covered with a blended fabric of cotton and polyester.

That is, in the futon shown in the drawing, the futon padding 1 is made of 20% ion exchange fibers with polyester as a support, 30% polyester, and 50% wool, and the futon cover 2 is made of 35% cotton and 65% polyester. It consists of

Alternatively, the contents of the futon can be made of regular material, such as 50% wool.
, 50% polyester, and ion exchange fibers can be used for the duvet cover, or ion exchange fibers can be used for both.

Ion exchange fiber weaving methods include twill weave, plain weave,
Sateen weaving, etc. are possible, and ion-exchange fibers can be used alone or in combination with ordinary materials, such as wool, cotton, polyester, acrylic, nylon, and polyurethane, by gamma-kun spinning or weaving.

In the case of blended spinning or mixed weaving, the usage ratio of normal material and ion exchange fiber is preferably 115 (weight ratio) or higher (normal material/ion exchange fiber), and should be determined as appropriate depending on the product type, usage, economic efficiency, etc. Rukoto can.

As for the yarn used, for clothing that comes into direct contact with the skin, the front side is made of fabrics according to the present invention, such as polyester and ion exchange fibers (
1/1, weight ratio), and the back side is made of regular polyester and cellulose (1/1, weight ratio). As it is made of R-woven yarn, the feeling of wearing it on the skin can be improved.

There is no limit to the amount of ion-exchange fiber used on the front side or the back side, and it can be determined as appropriate depending on the type of product, use, etc.

Ratio of ion exchange fiber used (ratio to normal material)
The fibers differ depending on the product to which they are applied, their uses, effects, etc., and can be used in an appropriate ratio, and can be made of 100% ion-exchange fibers if necessary.

Particularly preferred is a fabric constructed by using a combination of ion exchange fibers that support a cation exchanger (cation exchange fiber) and those that support an anion exchanger (anion exchange fiber).

The types of anion exchange fibers and cation exchange fibers to be used can be determined as appropriate depending on the type of odor gas generated and its concentration.

For example, anion exchange fibers contain acid gases (e.g., Has).
In addition, cation exchange fibers are exposed to alkaline gases (e.g. NH3).
effective.

In the case of futons, since alkaline gas is the main ingredient, it is best to use cationic fibers.

Conventional methods can be applied to remove odors from bedding and clothing containing ion exchange fibers. For example, odors adsorbed to a futon can be desorbed (removed) by drying the futon in the sun or by impacting it with a futon beater. Further, it can be removed (removed) from clothes etc. by washing.

〔Example〕

1. Deodorization test method 80g of ion-exchange fiber produced by the following method is mixed with 80g of wool at a weight ratio of 1:1 to make a cushion-shaped sample, and malodorous gas is passed through this sample to determine the concentration of odor components at the outlet. was measured to examine the deodorizing performance.

(1) Bad odor gas; odor components are 11□S and N
H.

Total concentration 10 ppm.

Passage Wk100ya l /5in (2) Dimensions of sample; 200 x 200 x 30
(3) Ion exchange fiber; anion fiber/cation fiber (1/1, weight ratio) 2, result up to 115.0 d (total amount of foul-smelling gas passing through) l1l
s.

No breakthrough was observed with Nlh (sample outlet gas concentration < O, IP+).

In addition, in the case of a futon (1/l, weight ratio) made of a mixture of polyester and wool as a blank (untreated sample), the collection rate was 31%, and after about 11 (cumulative amount of passing gas), it reached the outlet. The entire view was measured.

3. Manufacturing method of ion-exchange fiber ■ Anion-type exchange fiber: WA fibrous polyester is irradiated with an electron beam of 20 Mrad in nitrogen, then immersed in T8 liquid containing hydroxystyrene monomer and isoprene,
A graft polymerization reaction was performed. After the reaction, quaternary amination was performed to obtain anionic (type exchanged) fibers.

(2) Cation type exchange fiber: A fibrous polyester was irradiated with an electron beam of 20 Mrad in nitrogen, and then immersed in an aqueous acrylic acid solution to perform a graft polymerization reaction. After the reaction, the mixture was treated with a sodium hydroxide solution to obtain cationic (type-exchanged) fibers.

〔Effect of the invention〕

In the present invention, the following effects can be obtained by using ion exchange fibers for bedding, clothing, etc.

■ Bedding and clothing that do not emit bad odor components and are comfortable to wear can be produced.

■ Frequent sun drying and washing of bedding and clothing is no longer necessary,
Maintenance and management become easier.

■ Ion exchange fibers and conventional fibers (e.g. wool).

By mixing, blending, or weaving with cotton, polyester, acrylic, nylon, polyurethane), bedding and clothing that have good heat retention, feel good on the skin, and have excellent deodorizing effects can be made.

■ It will be possible to supply bedding, clothing, etc. that will be needed in the future aging society.

[Brief explanation of the drawing]

The drawing is a sectional view of the futon according to the present invention.

Claims (8)

[Claims] (1) A deodorizing fabric characterized by containing an ion exchange fiber in which an ion exchanger is supported on a natural fiber or an artificial fiber. (2) The deodorizing fabric according to claim (1), in which the ion exchange fibers include both a cation exchanger-supported fiber and an anion exchanger-supported fiber. (3) Claim No. 1 consisting of a mixture of the ion exchange fiber and natural fiber and/or artificial fiber.
The deodorizing fabric described in item (2) or item (2). (4) Claim No. (1) constituted by a blended yarn of the ion exchange fiber and natural fiber and/or artificial fiber.
The deodorizing fabric described in item (2) or item (2). (5) Claim No. (1) constituted as a woven product of the ion exchange fiber and natural fiber and/or artificial fiber.
The deodorizing fabric described in item (2) or item (2). (6) The ion exchange fiber is made by supporting an ion exchanger on a polyester fiber.
The deodorizing fabric according to any one of items ) to item (5). (7) The deodorization according to any one of claims (1) to (6), wherein the ion exchange fiber is a natural fiber or an artificial fiber graft-polymerized with an ion exchanger. sex fabric. (8) The deodorizing fabric according to claim (7), wherein the ion exchange fiber is obtained by graft-polymerizing an ion exchanger onto a natural fiber or an artificial fiber using a radiation irradiation method.