JP3086170B2 - Method for producing deodorant fiber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a heat treatment of a polyester fiber with a hydrazine derivative to obtain a deodorant fiber which is durable for washing and the like and is effective against acetaldehyde which is often contained in tobacco odor. It is about the method of providing.

[0002]

2. Description of the Related Art With the improvement of the living environment, there has been much interest in deodorizing odors generated from daily life and maintaining a comfortable living environment.

[0003] Common malodorous components include sulfur compounds such as methyl mercaptan, hydrogen sulfide and methyl sulfide, nitrogen compounds such as ammonia, methylamine, ethylamine and indole; lower fatty acids such as propionic acid, butyric acid and acetic acid; formaldehyde and acetaldehyde. And the like.

[0004] Inorganic substances such as activated carbon and zeolite are known as substances having a deodorizing effect, and are effective for many malodorous components, but are not effective for acetaldehyde which is contained in a large amount of tobacco smoke. Little effect.

As a substance which reacts with acetaldehyde,
Hydroxylamine and hydrazine are known, and if these are used as deodorants, acetaldehyde is chemically adsorbed, so that a deodorizing effect can be expected.

However, since these substances dissolve in water, there is a problem in that it is difficult to fix them on the fibers to impart durability.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the prior art, and is particularly effective against malodorous components containing aldehydes, and is durable against washing and the like. It is to provide a method of manufacturing the.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is achieved by heat treating a hydrazine derivative to a polyester fiber.

The first means for heat-treating hydrazine derivatives to polyester fibers is to immerse the polyester fibers in an aqueous solution or dispersion of the hydrazine derivative and to treat them under high pressure at 110 to 150 ° C. for 10 to 60 minutes. It is achieved by doing.

A second means of heat-treating the hydrazine derivative to the polyester fibers is to use polyester fibers impregnated with an aqueous solution or aqueous dispersion of the hydrazine derivative.
After drying by intermediate drying, 30 ~ 3 at 130 ~ 200 ° C
This is achieved by performing a dry heat treatment or a steam heat treatment for 00 seconds.

[0011]

[0012]

[0013]

Specific examples of the polyester fibers to be processed in the present invention include polyester yarn, polyester cloth, polyester film, etc., natural fibers such as cotton and hemp, synthetic fibers such as nylon and acrylic, rayon. And nonwoven fabrics and films containing polyester and blended and mixed fabrics of semi-synthetic fibers and polyester fibers.

The hydrazine derivatives usable in the present invention include alkylenedicarboxylic dihydrazides having 6 to 12 carbon atoms and aromatic dicarboxylic dihydrazides. Specific examples include adipic dihydrazide, sebacic dihydrazide, dodecane diacid dihydrazide, and isophthalic acid. Acid dihydrazide and the like.

The amount of the hydrazine derivative used in the present invention is preferably from 0.2 to 30% by weight of the fiber weight.

Specific examples of the adsorptive inorganic substance used in the present invention include activated carbon, barley stone, montmorillonite, silica gel and the like, and metal oxides such as alumina, titanium oxide and zinc oxide. These inorganic substances are preferably fine powders, and the amount used is preferably 0.2 to 30% by weight of the fiber weight.

[0018] The binder resin used in the present invention is not particularly limited, but specific examples thereof include self-crosslinking acrylic resin, methacrylic resin, urethane resin, silicone resin, glyoxal resin, vinyl acetate resin, vinylidene chloride resin. , Butadiene resin, melamine resin, epoxy resin,
Acrylic / silicone copolymer resin, ethylene / vinyl acetate copolymer resin, isobutylene / maleic anhydride copolymer resin, ethylene / styrene / acrylate / methacrylate copolymer resin, etc., may be used alone or as a mixture of two or more. Can also be used.

The deodorized fibers of the present invention are used for interiors such as sofas, curtains, and valleys, beddings such as futons, blankets, pillows, sheets, general clothing, automobile interior goods, and the like.
And filters such as air purifiers.

The application of the deodorized film or sheet of the present invention includes kitchen-related vinyl bags such as garbage bags and food storage bags, as well as general-purpose vinyl bags and sheets.

[0021]

According to the production method of the present invention, deodorant fibers obtained by subjecting a hydrazine derivative and, if necessary, a binder resin and an adsorptive inorganic substance to polyester fibers are heat-treated with acetaldehyde. Aldehydes and the like have excellent deodorizing performance and have excellent durability against washing and the like.

[0022]

The following is a description of several methods for producing deodorant fibers according to the present invention, which have an extremely effective deodorizing effect on malodorous components containing aldehydes such as acetaldehyde which are considered to be particularly contained in tobacco odor. Examples will be described in detail.

The deodorization rate was measured by the method shown in Table 1 below.
The deodorant fibers shown in Examples were placed in the 500 ml plastic containers each containing the malodorous components having the concentrations shown in Table 4 and after 4 hours, the inside of the containers were measured with the gas detector tubes (manufactured by Gastec) shown in Table 1 above. The concentration of offensive odor was measured, and the deodorizing rate was determined from the decrease.

[Table 1]

<Experimental Example 1> 0.2 parts by weight of dodecane diacid dihydrazide and 20 parts by weight of a polyester cloth were mixed with 200 parts of water.
Using a high-pressure dyeing machine in addition to the parts, treatment at 130 ° C. for 30 minutes and washing with water were performed to obtain a work cloth. A deodorizing test was performed on 2 g of the work cloth.

Further, this work cloth is used in accordance with JIS L-0217.
The fabric was washed five times in accordance with the 103 method, and the deodorized test was similarly performed on the washed fabric.

The results of the deodorizing test are shown in Table 2 below.

[Table 2]

As can be seen from the above results, the deodorizing rate of acetaldehyde is good, and it can be said that the deodorizing effect is effective even after washing.

<Experimental Example 2> 0.5 part by weight of isophthalic acid dihydrazide was added to 100 parts of water to prepare a treating solution. This treatment liquid was padded (pickup 80%) to a polyester cloth, and after intermediate drying, a dry heat treatment was performed at 180 ° C. for 30 seconds to obtain a work cloth. A deodorizing test was performed on 2 g of the work cloth.

Further, this work cloth is used in accordance with JIS L-0217.
The fabric was washed five times in accordance with the 103 method, and the deodorized test was similarly performed on the washed fabric.

The results of the deodorizing test are shown in Table 3 below.

[Table 3]

As can be seen from the above results, the deodorizing rate of acetaldehyde is good, and it can be said that the deodorizing effect is effective even after washing.

[0032]

[0033]

[0034]

[0035]

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

As described in detail above, the deodorant fiber according to the present invention has an acetaldehyde deodorant effect having excellent durability against washing and the like, since the hydrazine derivative is firmly fixed on the fiber. In addition, when used in combination with another inorganic substance having adsorptivity, a deodorizing effect for sulfur compounds and nitrogen compounds can be imparted, and an excellent deodorizing effect for various malodors can be obtained.

Accordingly, for example, interior relations such as sofas, curtains, carpets, beddings such as futons, blankets, pillows, sheets, general clothing such as clothes, socks, stockings, automobile interior goods, air purifiers and air conditioners, etc. Even if the deodorant is fixed to the surface of a filter (nonwoven fabric) or the like, there is no possibility that the deodorant is detached by washing or the like.

Therefore, the washing can absorb the bad odor to the saturation and recover the lost deodorizing function, and can provide various deodorized processed products having high washing durability and reproducibility.

Continuation of the front page (56) References JP-A-9-28778 (JP, A) JP-A-9-78452 (JP, A) JP-A 8-174377 (JP, A) (58) Fields investigated (Int .Cl. ⁷ , DB name) D06M 13/338 D06M 13/422 A61L 9/01

Claims (5)

(57) [Claims] The method according to claim 1] polyester fibers, only one or more compounds selected from the hydrazine derivatives group, heating conditions
A method for producing a durable deodorant fiber, characterized by treating under the following conditions . 2. A polyester fiber treated with at least one compound selected from the group consisting of hydrazine derivatives .
Thereafter, a heat treatment is performed, followed by heat treatment . 3. A hydrazine-inducing polyester fiber.
Aqueous solution of only one or more compounds selected from the group of conductors or
It is characterized in that it is treated under heating conditions in an aqueous dispersion
Method for producing durable deodorant fiber. 4. One or more selected from the group of hydrazine derivatives
Poly-impregnated with an aqueous solution or aqueous dispersion of only the above compound
Durability characterized by heat treatment of ester-based fibers
Production method of soluble deodorant fiber. 5. One or more selected from the group of hydrazine derivatives
Poly-impregnated with an aqueous solution or aqueous dispersion of only the above compound
Specially heat-treating ester fibers after intermediate drying.
Production method of durable deodorant fiber.