JPH01104885A - Deodorizing clothing - Google Patents

Abstract

PURPOSE: To produce comfortable deodorizing clothing capable of completely preventing a bad smell and capable of preventing stuffiness even in summer by applying a polyurethane resin composition including a substantially white or colorless deodorant made of an organic carboxylic acid and a zinc compound or the like to clothing materials or the like. CONSTITUTION: This deodorizing clothing is produced by applying a resin composition in a solution state in an organic solvent or in an emulsion state to a sheet-like product, a cloth-like one, a clothing one or the like through a coating method or the like. The resin composition is an deodorizer prepared by mixing a deodorant with a known polyurethane-based resin. The deodorant is made of (A) an organic carboxylic acid and a zinc compound (preferably zinc oxide) or (B) a zinc compound and an aluminum compound (preferably aluminum sulfate or the like). The clothing can prevent a bad smell and can attain an arbitrary tone of color. The organic carboxylic acid is an aliphatic polycarboxylic acid (e.g. citric acid or the like), an aromatic carboxylic acid (especially preferably trimellitic acid) or the like.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to clothing to be worn in environments where there is an odor or a unique odor, and which prevents the odor from penetrating the skin and hair. be.

More specifically, the present invention relates to clothing made of a material applied with a polyurethane resin composition that provides synthetic leather, fake leather, and other various botanical urethane resin products that have excellent deodorizing properties that can remove unpleasant odors.

Environments with odors or unique odors (hereinafter abbreviated as odors) include, for example, livestock barns, manure processing facilities, fish markets, garbage collection and processing, medical treatment for long-term patients, and sports that involve sweating profusely. There are places like this.

(Prior art) Conventionally, odor protection methods in environments with odors include:
For example, in livestock barns, manure processing facilities, etc., people used to cover their entire bodies with clothing or wear rubberized coats.

(Problems with the Prior Art) However, if the entire body is simply covered with ordinary clothing, and if the clothing is even slightly breathable, the odor will pass through the clothing and form an odor layer on the skin surface.

In addition, raincoats made of non-breathable rubber, vinyl, or other synthetic resin materials cannot be worn because they become stuffy with sweat and are difficult to work in, especially in the summer.

In either case, once the odor has transferred to the body, the odor does not go away even if one takes a bath and washes it many times, and there is a risk that it may cause discomfort to those who meet the body.

By the way, conventionally, organic solvent solutions, dispersions, emulsions, etc. based on botanical urethane resins have been used for various synthetic leathers, fake leathers, breathable sheet materials, laminated materials with various materials, composite materials, etc. made of polyurethane resins. It has been widely used in the production of polyurethane resin products.

When various products obtained from this polyurethane resin composition are used in places where bad odors accumulate or are generated, deodorizing agents such as activated carbon and ferrous sulfate should be included in these products. That was considered.・However, since activated carbon is black, it makes the product black, and
Since ferrous sulfate has the problem of easily turning brown due to oxygen in the air, in order to be used in the clothing that is the subject of the present invention, clothing requires various colors. , it still wasn't appropriate.

(Objective of the present invention) The present invention addresses the above-mentioned problems and utilizes a composition that can remove unpleasant odors from the surrounding atmosphere by absorbing unpleasant odors in the surrounding atmosphere for a long time without coloring the product. To provide deodorizing clothing that can be worn even in summer and can be easily colored in any color.

(Means for Solving the Problems) Therefore, the deodorant clothing of the present invention is characterized in that it is made from a fabric made of a material to which a deodorizing polyurethane resin composition having the following characteristics a is applied. shall be.

a In a polyurethane resin composition comprising a polyurethane resin, a liquid medium, and an additive, at least a portion of the additive is a substantially white or colorless deodorizing agent.

(Preferred Embodiments) Next, the present invention will be described in more detail by citing preferred embodiments of the present invention.

In the present invention, the polyurethane resin used in the deodorizing polyurethane resin composition applied to deodorant clothing (hereinafter referred to as "used in the present invention" in the description of the composition) refers to polyols, polyisocyanates,
The resin is obtained by reacting a chain extender, etc., and any conventionally known polyurethane resin can be used in the present invention, and is not particularly limited.

For example, as the polyol, any conventionally known polyol for polyurethane resins can be used. For example, it is preferable that the terminal group is a hydroxyl group and the molecular weight is 300.
to 4,000 polyethylene adipate, polyethylene propylene adipate, polyethylene butylene adipate, polydiethylene adipate, polybutylene adipate, polyethylene succinate, polybutylene succinate, polyethylene sebacate, polybutylene sebacate, polytetramethylene ether glycol, poly Examples include -ε-caprolactone diol, polyhexamethylene adipate, carbonate polyol, polypropylene glycol, and those containing an appropriate amount of polyoxyethylene chains in the above polyols.

Any conventionally known organic polyisocyanate can be used, but for example, 4,4'-diphenylmethane diisocyanate (MDI) is preferred.
) Water-added MDI, isophorone diisocyanate, 1.3-disylylene diisocyanate, 1.4-disylylene diisocyanate, 2.4-silylene diisocyanate, 2.6-silylene diisocyanate, 1.5-shiftylene diisocyanate, m-genylene diisocyanate There are isocyanates, p-dienylene diisocyanates, etc., or urethane prepolymers obtained by reacting these organic polyisocyanates with low molecular weight polyols or polyamines to form terminal isocyanates can also be used.

As the chain extender, any conventionally known ones can be used, but for example, preferred ones are ethylene glycol, propylene glycol, diethylene glycol, 1,4-ditanediol, 1,6-dixanediol, ethylenediamine, 1 .2-propylene diamine, trimethylene diamine, tetramethylene diamine, hexamethylene diamine, decamethylene diamine, isophorone diamine, m-disilylene diamine, hydrazine, water, etc.

The polyurethane resin composition applied to the deodorant clothing of the present invention can be prepared by dissolving or dispersing the polyurethane resin in an organic solvent or by using water to form a Wlo or OZW type emulsion. It is characterized in that a substantially white or colorless deodorizing agent is added as at least a part of the additive.

The liquid medium used in the above composition is water, an organic solvent, or a mixture thereof. For example, preferred organic solvents include methyl ethyl ketone, methyl-n-propyl ketone, methyl isobutyl ketone, diethyl ketone, methyl formate, ethyl formate, Propyl formate, methyl acetate, ethyl acetate, butyl acetate, etc. Also, acetone, cyclohexane, tetrahydrofuran, dioxane, methanol,
Ethanol, isopropyl alcohol, butanol, toluene, xylene, dimethylformamide, dimethyl sulfoxide, perchloroethylene, trichlorethylene, methyl cellosolve, butyl cellosolve, cellosolve acetate, etc., and mixtures thereof in arbitrary ratios can be used.

If the organic solvent used is a good solvent for the polyurethane resin, it will be a solution of the polyurethane resin, and if the liquid medium is a poor solvent, it will be a dispersion. Further, an emulsion can be obtained by emulsifying water using a surfactant in these organic solvent solutions or dispersions, or by emulsifying the above solutions or dispersions in water using a surfactant. Alternatively, the polyurethane resin may be simply emulsified in water using a surfactant.

As the emulsifier, any of the conventionally known water-in-oil or oil-in-water emulsifiers can be used, but particularly preferred are polyurethane surfactants having an appropriate amount of polyoxyethylene chains in the molecule. .

These emulsifiers have a solid content of 1
Preferably, it is used in a proportion of about 1 to 10 parts by weight per 00 parts by weight.

The polyurethane resin solution, dispersion, or emulsion as described above preferably has a solid content of about 5 to 60% by weight.

The deodorizing agent included in the polyurethane resin composition as described above must be white or substantially colorless, not black like activated carbon, and should not discolor. It should not reduce the quality of the composition, especially its colorability, and it should preferably absorb unpleasant odors such as ammonia odor, amine odor, hydrogen sulfide odor, etc. that occur inside the cabin of a ship.

Examples of the deodorizing agent having the above characteristics include a mixture of an organic carboxylic acid and a zinc compound or a mixture of a zinc compound and an aluminum compound.

Preferred organic carboxylic acids are aliphatic polycarboxylic acids, aromatic polycarboxylic acids and polymeric carboxylic acids.

Preferred examples of aliphatic polycarboxylic acids include, for example,
Oxic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, fumaric acid, maleic acid, methylmaleic acid, methylfumaric acid, itaconic acid, citraconic acid, mesaconic acid, acetylenic acid, malic acid, methylmalic acid,
Di- or tricarboxylic acids such as citric acid, isocitric acid, and tartaric acid, or salts thereof, and particularly preferred are citric acid, fumaric acid, or salts thereof.

Preferred examples of aromatic polycarboxylic acids include, for example,
Phthalic acid, terephthalic acid, isophthalic acid, trimellitic acid, 1.2.3-benzenetricarboxylic acid, 1,3.5
- Aromatic carboxylic acids such as benzenetricarboxylic acid, pyromellitic acid, benzenehexacarboxylic acid, naphthalenedicarboxylic acid, naphthalenetricarboxylic acid, naphthalenetetracarboxylic acid, diphenyltetracarboxylic acid, diphenyl ethertetracarboxylic acid, azobenzenetetracarboxylic acid, etc.; A particularly preferred aromatic polycarboxylic acid which is anhydride is benzenetricarboxylic acid, especially trimellitic acid.

In addition, examples of polymer carboxylic acids include citric acid, tartaric acid,
Polyhydric carboxylic acids such as phthalic acid, ethylene glycol,
Polyurethane with terminal carboxyl groups obtained by reacting polyhydric alcohols such as 1,4-butanediol and diethylene glycol with excess acid; acidic cellulose derivatives modified with polycarboxylic acids; vinyl ether ester monomers of polycarboxylic acids, etc. Homopolymers or random copolymers with other common monomers, block copolymers, graft copolymers; homopolymers of monomers such as acrylic acid or methacrylic acid or random copolymers with other common monomers. Polymers, block copolymers, graft copolymers; homopolymers such as maleic anhydride, itaconic acid conformal α, β-unsaturated vinyl monomers, or random copolymers, block copolymers with other common monomers. Examples include polymers, graft copolymers, and the like.

By adding a zinc compound to the above organic carboxylic acid, it is possible to simultaneously absorb hydrogen sulfide odor, which is another source of bad odor, along with amine odor and ammonia odor.

Examples of such zinc compounds include inorganic zinc compounds such as zinc oxide, zinc sulfate, zinc chloride, zinc phosphate, zinc nitrate, zinc carbonate, zinc acetate, zinc oxalate, zinc citrate, zinc fumarate, and formic acid. Organic zinc salts such as zinc can be used, but particularly preferred are zinc white (zinc oxide) and zinc carbonate.

Such a zinc compound is used in an amount of 1 to 1,000 parts by weight, preferably 30 to 30 parts by weight, per 100 parts by weight of organic carboxylic acid.
It is blended in a proportion of 0 parts by weight.

More preferred white or substantially colorless deodorizers include:
Examples include those in which an aluminum compound is blended with the above zinc compound. Such a deodorizing agent can also absorb unpleasant odors such as amine odor, ammonia odor, and hydrogen sulfide odor, which are sources of various odor, without reducing the desirable physical properties or dyeability of the polyurethane resin composition. . Preferred aluminum compounds are aluminum sulfate, aluminum potassium sulfate, etc., and these aluminum compounds are used in an amount of 1 to 1.0 parts by weight per 100 parts by weight of the zinc compound.
00 parts by weight, preferably 30 to 300 parts by weight.

The deodorizing agent as described above is preferably used in an amount of about 0.5 to 50% by weight of the total amount of the polyurethane resin composition obtained. If the amount used is less than the above range, the deodorizing performance for the purpose of the composition, which is applied to deodorant clothing, will be insufficient, and if the usage rate exceeds the above range, the physical properties will be insufficient, so it is preferable. do not have.

The solution, dispersion, or emulsion of the polyurethane resin obtained in this manner may contain various additives, such as colorants, crosslinking agents, stabilizers, fillers, etc., as necessary. Agents can optionally be added.

Synthetic leather from polyurethane resin compositions as above,
Substrates used to produce fake leather or other sheet materials, laminated materials, composite materials, etc. include various release papers, woven fabrics, knitted fabrics, non-woven fabrics, release papers, plastic films, and metals. Any base material such as a plate or glass plate may be used.

The method for applying the polyurethane resin composition to the substrate may be any known method such as a coating method, a dipping method, or a combination of these methods, and the amount of impregnation and/or application is about 5 to 2. 'OOOg (compounded liquid)/
Like E, it can be varied within a wide range depending on the purpose.

Gelation and drying of the substrate impregnated and/or coated with the above polyurethane resin composition may be carried out in the same manner as in the prior art, for example, at a temperature of about 40 to 200°C for several minutes to After several hours of drying, a polyurethane resin product with excellent properties for use in deodorizing clothing can be obtained.

(Function) As described above, the deodorizing clothing of the present invention is a clothing to which the above-mentioned polyurethane resin composition is applied, and has particularly excellent coloring properties and deodorizing properties, and does not generate bad or strange odors. It is useful as clothing, shoes, gloves, etc., used in places where it accumulates.

Next, the present invention will be explained in more detail with reference to Examples. Note that parts and percentages in the text are based on weight.

(Example) First, the form of deodorant clothing of the present invention will be described based on the example shown in the drawings.

FIG. 1 shows deodorant clothing according to an example.

The deodorizing clothing consists of a clothing part 1, a hat 2.3 part, and a trousers 4 part, and the hat and trousers parts may both be integrated with the clothing part or separate from the clothing part.

The fabric for this clothing is obtained by applying the deodorizing polyurethane resin composition used in the present invention to a base material of a suitable material.

The material may be in any stage as long as it forms a clothing product, such as a sheet, fabric, or fiber. for example,
If a fibrous material is used, it is processed into a cloth at an appropriate time before it is formed into a final product, such as by being woven into a fabric.

The application method may be any known method such as coating, spraying, dipping, or a combination thereof.

This fabric is sewn as it is, or it is further laminated or quilted and then sewn to obtain clothes, hats, and pants of appropriate shapes.

Below, as examples, the deodorizing performance of deodorant clothing formed in this way will be described using various deodorizing polyurethane resin compositions.

Example Lusamine cu77LV (manufactured by Dainichiseika Chemical Industry Co., Ltd., polyurethane resin) 25 parts, aluminum sulfate 40 parts, zinc oxide 1
0 parts and 40 parts of dimethylformamide were kneaded in a ball mill to reduce the particle size of dispersed particles to 5 μm or less to obtain a polyurethane resin composition to be applied to the deodorant clothing of the present invention.

5 parts of the above composition, 100 parts of Rezamin ME (polyurethane resin, manufactured by Dainichiseika Chemical Industry Co., Ltd.), and 100 parts of Seika Seven ALT.
(manufactured by Dainichiseika Chemical Industry Co., Ltd.), 15 parts of dimethylformamide as a diluting solvent, and 20 parts of methyl ethyl ketone were added, stirred until homogeneous, defoamed, and placed on release paper.
It was applied at a rate of 20 g/rrf·smet and dried at 120° C. for 2 minutes to form a skin layer.

Next, 100 parts of Rezamin IJ D 660 S^ (manufactured by Dainichiseika Kagyo, polyurethane resin), 10 parts of Rezamin UD crosslinking agent (manufactured by Dainichiseika Kagyo), and 40 parts of methyl ethyl ketone as a diluent were added and stirred until uniform. The obtained product was coated on a release paper with the above skin layer formed in advance using a knife coater at 100 to 150 g/rrr.
・Apply in a wet amount, dry at 100°C for 30 seconds, immediately place and press base fabric, dry at 120°C for 2 minutes 1, and age at 50°C for 24 hours after winding up. Thereafter, the release paper was peeled off to obtain a polyurethane resin synthetic leather.

When the deodorizing effect of the obtained synthetic leather was measured using the method described below, results with significant differences as shown below were obtained.

300mj! Collect 10 μ2 of 28% ammonia water into a 3-volume Erlenmeyer flask, and after completely gasifying it, put the sample (size 50 x 200 mm, 1 sheet) and heat at 25°C.
After a predetermined period of time had elapsed, the residual concentration of ammonia in the flask was measured using a general-purpose gas detector.

In a 300 mf Erlenmeyer flask with a water stopper, add 1 ml of 800 ppm sodium sulfide aqueous solution and 1 N sulfuric acid.

Add Oml to generate hydrogen sulfide, and remove the sample (size 5
0x50 mm, 1 piece) was placed in the flask and stored at 25°C. After a predetermined period of time, the residual concentration of hydrogen sulfide in the flask was measured using a general-purpose gas detector.

Trial■ Camellia 5 Behind 30 minutes After 120 minutes Sample size blank 4
,400 4,400 4,400 50X20Omm
Mainly treated product 4,000 2,300 900 50x
200 fence (The blank was made in the same manner as in the present invention except that a deodorizing agent was used. The same applies hereinafter) B) Ability to remove arsenic sulfate (ρpm) 1 day, 3 days, 7 days later Sample size Blank 160 160 160 50X 50
mm processed product 50 NOND 50X50
mm (ND = not detected, the same applies hereinafter) Example 2 30 parts of potassium aluminum sulfate and 20 parts of zinc carbonate were used as a deodorizing agent in the resin composition obtained in Example 1, and the other conditions were the same as in Example 1. 5 parts of the resin composition to be applied to the deodorizing clothing of the present invention prepared in the above manner are added to 100 parts of Retheroid LU1500 (polyurethane surface treatment agent manufactured by Dainichiseika Chemical Industry Co., Ltd.) and stirred uniformly to obtain a surface treatment liquid.

Rezamin ME (manufactured by Dainichiseika Chemical Industry Co., Ltd., polyurethane-based tree)
Jll), 15 parts of Seika Seven ALT (manufactured by Dainichiseika Chemical Industry Co., Ltd.), 15 parts of dimethylformamide as a diluting solvent, and 20 parts of methyl ethyl ketone were added, stirred until uniform, defoamed, and 120 g was placed on release paper. /
It was applied at a ratio of rd-set and dried at 120°C for 7 minutes to form an epidermal layer.

Next, 100 parts of Rezamin UD6605A (manufactured by Dainichiseika Kagyo, polyurethane resin), 10 parts of Rezamin UD crosslinking agent (manufactured by Dainichiseika Kagyo), and Rezamin IJD102 accelerator (
10 parts (manufactured by Dainichiseika Chemical Industry Co., Ltd.) and 40 parts of methyl ethyl ketone as a diluent were added and stirred until the mixture was evenly mixed.
100 to 150 g/ni ・we with knife coater
It was applied in an amount of
Aging at 0°C for 24 hours. Thereafter, the release paper was peeled off, and the above-mentioned surface treatment agent was applied once using a 120 mesh plate using a gravure printing machine, and dried to obtain a polyurethane resin synthetic leather.

When the deodorizing effect of the obtained synthetic leather was measured using the method described above, the following significant differences were obtained.

5 After 30 minutes After 120 minutes Sample size blank 4,
400 4,400 4,400 50X 200mm
Mainly treated product 4,000 2,000 1,300 5QX
200mmB) Deodorizing ability of arsenic sulfate (pm) 1 day, 3 days, 7 days Sample size blank 160 160 160 50X 50
mm processed product 10 ND ND 50
x50 cylinder Example 3 Zinc oxide 2 as a deodorizer in the resin composition obtained in Example 1
Resin composition 5 applied to deodorant clothing of the present invention, prepared in the same manner as in Example 1 except using 0 parts and 5 parts of citric acid.
100 parts of Rezamin CU (manufactured by Dainichiseika Chemical Industry Co., Ltd., polyurethane resin), 5 to 20 parts of Seika Seven BS (manufactured by Dainichiseika Chemical Industry Co., Ltd.), 3 parts of surfactant, and 50 parts of dimethylformamide as a diluent were added and mixed uniformly. After degassing, it was applied to a thickness of 1 mm on raised clay, coagulated in water for about 10 minutes, dimethylformamide was extracted and removed in warm water at 50°C for 30 minutes, and further soaked in water at 20°C. Wash, 1
A porous sheet material was obtained by drying at 00°C.

When the deodorizing effect of the obtained porous sheet material was measured using the method described above, results with significant differences as shown below were obtained.

■ Armpit level A Ammonia removal m 5 30 minutes later 120 minutes later Sample size blank 4.
400 4,400 4.400 50X 200X2
Mainly treated product 4. OQ0 3,400 2,700 50X
200X2B Arsenic sulfate removal Cppm) 1 day 3 days 7 days later Sample size blank 160 160 160 50x 5
0 x2' 2 part Risho ND ND ND
50X 50X2 Example 4 Zinc oxide 2 as a deodorizing agent in the resin composition obtained in Example 1
0 parts and 10 parts of trimellitic acid, the rest was as in Example 1.
5 parts of the resin composition applied to the deodorant clothing of the present invention prepared in the same manner as above, Rezamin CU (manufactured by Dainichiseika Chemical Industries, Ltd., polyurethane resin> ioo part, Seika Seven BS (manufactured by Dainichiseika Chemical Industries, Ltd.) 0 to 5 1 part, 3 parts of surfactant, and 200 parts of dimethylformamide as a diluting agent, stirred until uniform, defoamed, and impregnated into the raised soil to obtain a pick-up rate of 3.
After squeezing 00%, coagulate in water for about 10 minutes,
Dimethylformamide was extracted and removed in warm water at 0°C for 30 minutes, further washed in water at 20°C, and dried at 100°C to obtain an impregnated napkin. A synthetic leather made of a polyurethane resin was obtained using the raised fabric in the same manner as in Example 2.

When the deodorizing effect of the obtained synthetic leather was measured using the method described above, the following significant differences were obtained.

Trial IL exhibition 5 30 minutes later 120 minutes later Sample size blank 4,
400 4.400 4,400 50X 200X
2-piece processed product 4,000 2,700 1,800
50X 200X 2 (B Hydrogen sulfide deodorizing ability (ppm
) 1 day later 3 days later 7 days later Sample size blank 160 160 160 50x 20
x 2 processed product ND NOND 50X
20 X 2 Example 5 ■, 4-butane ethylene adipate (average molecular weight approximately i,
ooo, hydroxyl value 112)! , 000 parts, 31 parts of 1,4-butanediol, and 333 parts of diphenylmethane diisocyanate were added to 3,183 parts of methyl ethyl ketone,
The reaction was carried out at 70°C for 8 hours to obtain a polyurethane resin solution (A) with an average molecular weight of 65,000 and a solid content of 30%.

The above (A), emulsifier, organic solvent, and water were stirred using a homomixer to prepare a polyurethane emulsion to be applied to deodorant clothing of the present invention as described below.

(1) Polyurethane emulsion (A) Polyurethane solution (A) 100 parts Urethane emulsifier
2 parts zinc oxide 5
Part potassium aluminum sulfate 3 parts methyl ethyl ketone 20 parts toluene
20 parts water
80 parts of the above emulsion A was applied in an amount of 200 parts on release paper.
After applying at a ratio of g/bo and drying at 130°C for 2 hours,
The coating was peeled off to obtain a porous sheet.

When the deodorizing effect of the obtained porous sheet was measured using the method described above, results with significant differences as shown below were obtained.

5 After 30 minutes After 120 minutes Sample size, blank
4.400 4.400 4.400 50X 200
X 2-piece processed product 4,000 3,100 2,500
50X 200X 2B Sulfuric acid, m After 1 day After 3 days After 7 days Sample size blank 160 160 160 50X 2
0 X 2-piece processed product 10 ND ND
50X 20X 2 Example 6 Polytetramethylene glycol (average molecular weight approximately 1.00
0, hydroxyl value 112) 1.000 parts, ethylene glycol 24 parts and diphenylmethane diisocyanate 340
183 parts of methyl ethyl ketone at 70°
C for 9 hours to obtain a polyurethane resin solution (B) with an average molecular weight of 52,000 and a solid content of 30%.

The above (B), emulsifier, organic solvent, and water were stirred in a homomixer to prepare a polyurethane emulsion to be applied to the deodorant clothing of the present invention as described below.

(2) Polyurethane emulsion (B) Polyurethane solution (B) Loo part zinc oxide
5 parts polyacrylic acid 5 parts urethane emulsifier 2 parts methyl ethyl ketone 20 parts toluene
20 parts water 80
The above emulsion B was applied onto release paper at a coating amount of 200 g/bottom, and after drying at 130°C for 2 minutes, the coating was peeled off to obtain a porous sheet.

When the deodorizing effect of the obtained porous sheet was measured using the method described above, results with significant differences as shown below were obtained.

5 After 30 minutes After 120 minutes Sample size blank 4.
400 4,400 4,400 50X 200X
2-piece processed product 4.000 3,700 3.000 50
X 200X 2B Hydrogen sulfide deodorizing ability (ppm 1 day 3 days later 7 days later Sample size blank 160 160 160 50x 2
0 x 2 processed products 20 ND ND
50 x 20 Ta.

When the deodorizing effect of the obtained processed cloth was measured using the method described below, results with significant differences as shown below were obtained.

In a 300 ml Erlenmeyer flask, add 1 ounce of 28% ammonia water. After collecting and completely gasifying, a sample (size 50 x 200 mm, 1 piece) was placed at 25℃.
After a predetermined period of time, the residual concentration of ammonia in the flask was measured using a gas detector.

In a 181 m chestnut 300 + 112 volume Erlenmeyer flask, add 1 ml of 800 ppm sodium sulfide aqueous solution and 1.0++ l normal sulfuric acid.
1 to generate hydrogen sulfide, and sample (size 50
X200M.

After a predetermined period of time, the residual concentration of hydrogen sulfide in the flask was measured using a general-purpose gas detector.

5 After 30 minutes After 120 minutes Sample size blank 6.
200 6.200 6,200 50x200 processed product 4,000 2.600 1,700 50x200
B) Deodorizing ability of hydrogen sulfide (ppm) After 1 day After 3 days After 7 days Sample size blank 140 - 50X200
Treated product ND-50 There is no risk of causing discomfort.

The deodorizing clothing of the present invention can protect both the clothing itself and the skin and hair of the human body from odors, and can be easily obtained in any color tone.

Also, as mentioned above, not only odors that come from the outside of clothing, but also odors that come from the inside of clothing, such as odors from sweat, physical constitution, or intake of large amounts of alcohol, certain spices such as garlic, etc. can also be prevented if necessary.

[Brief explanation of the drawing]

Figure 1 Outline diagram of deodorant clothing according to the present invention 1 clothing 2.3 Hat 4 Zupon

Claims (6)

[Claims] (1) Deodorizing clothing made from a fabric made from a material to which a deodorizing polyurethane resin composition having the following characteristics a is applied: In a polyurethane resin composition comprising a polyurethane resin, a liquid medium, and an additive. , at least a portion of the additive is a substantially white or colorless deodorant. (2) The deodorizing clothing according to claim (1), wherein the deodorizing agent comprises an organic carboxylic acid and a zinc compound. (3) The deodorizing clothing according to claim (1), wherein the deodorizing agent comprises a zinc compound and an aluminum compound. (4) The deodorant clothing according to claim (2), wherein the organic carboxylic acid is an aliphatic polycarboxylic acid. (5) The deodorant clothing according to claim (2), wherein the organic carboxylic acid is an aromatic polycarboxylic acid. (6) The deodorant clothing according to claim (2), wherein the organic carboxylic acid is a polymer carboxylic acid.