JPH0767949A - Deodorant composition - Google Patents

Abstract

PURPOSE:To absorb and remove the malodor sent in the living environment and the malodor infiltrating from the outside air by using a dialdehyde starch aqueous solution as a binder when mineral fine powder is processed as a deodorizing material for a filter. CONSTITUTION:When mineral fine grain powder is processed as a dedorizing material for a filter used for a fiber product made of natural fibers, synthetic fibers, or blended fibers of them, a nonwoven fabric, a paper product, and an air conditioner, a dialdehyde starch aqueous solution is used as a binder. Ester acrylate or ester methacrylate polymer aqueous dispersion is concurrently used as the binder effect reinforcing agent of the dialdehyde starch aqueous solution. The mineral fine grain powder can be firmly bound by the dialdehyde starch aqueous solution used as the binder or the ester acrylate polymer aqueous dispersion concurrently used as an auxiliary agent. Dialdehyde starch has the adhesive effect and the multiplicative effect of the deodorizing effect together with the porous mineral material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment capable of absorbing and removing a malodorous component by a simple method regardless of household or general industry.
More specifically, it absorbs and removes offensive odors by treating natural fibers, synthetic fibers used indoors, or textile products or paper products made from blended products of these, non-woven fabrics, filters or interior products, upholstery products, sports equipment, etc. Deodorant treatment method.

[0002]

2. Description of the Related Art It is very difficult to eliminate a bad odor. The offensive odor gives people discomfort or disgust, and is generally a low concentration, but it is said to be an odor that is a multi-component compound and may directly appeal to human olfaction and impair the living environment.

[0003] Typical examples of the malodor include sulfur compounds such as methyl mercaptan, ethyl mercaptan, dimethyl sulfide, diethyl sulfide, hydrogen sulfide and methyl sulfide, and also methylamine, ethylamine, dimethylamine, trimethylamine, ammonia and indole. There are nitrogen compounds such as. These can be caused by the deterioration of vegetables and seafood, as well as by pets and living environments. In addition to these, lower fatty acids such as propionic acid and butyric acid, and chemical substances such as phenol, thiophenol, formalin, acetaldehyde, styrene, and acetone are also components that constitute a malodor.

Deodorants that have been generally used in the past include activated carbon, iron sulfate, zinc compounds, aluminum salts, inorganic salts such as silicates, citric acid, iron ascorbate, and various plant extracts. For example, as for the camellia plants and the sophoraceae plants, JP-A-53-66434, and JP-A-58-190445 as extracts of green tea, the application as deodorant and deodorant is disclosed. It is also known that chlorophyll, which is the main component of chlorophyll, also has a deodorizing effect.

Other methods such as masking method with perfume, oxidation method with oxidizing agent, neutralization method with acid or alkali, diffusion method by ventilation, etc. are limited to the methods used at home, and mainly masking method, Adsorption method, diffusion method, etc.

In order to process fine powders of mineral substances as deodorant substances into textile products, paper products, non-woven fabrics, filters and the like, a binder having an adhesive property is required. Conventionally, as a binder used for such a purpose, a resin emulsion, which is a high molecular substance, has been used, but such a high molecular compound inhibits the deodorizing function of a porous mineral substance. There were many

[0007]

DISCLOSURE OF THE INVENTION The present invention uses a fine powder of a porous mineral substance as a deodorant substance, which is used as a natural fiber or a synthetic fiber or a fiber product of a blended product thereof, an air purifier, and an air conditioner / heater. By using dialdehyde starch aqueous solution as a binder for air-conditioning related filters, paper products, non-woven cloth, etc. and treating and adhering to each surface, the odor generated in the living environment and the odor entering from the outside air are absorbed and removed. , Get a comfortable daily life.

[0008]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have found that an aqueous solution of dialdehyde starch obtained by oxidizing starch has an excellent binder property. did. Further, although this dialdehyde starch is known, it has a deodorizing function, and it is recognized that it has an excellent synergistic effect when used in combination with a porous fine mineral powder used as a deodorant substance in the present invention. The present invention has been completed.

The porous fine mineral powder used in the present invention has a two-layer structure in which a tetrahedral layer of silica composed of silica, alumina and a metal oxide and an octahedral layer centered on a metal are alternately bonded in a layered manner. Porous silicate minerals having are applicable. The silicate mineral has a specific surface area of 200 m ² / g or more and a pore volume of 0.4 ml / g or more. The deodorizing performance has excellent deodorizing property due to the physical adsorption action due to the pores of 10 to 50Å and the chemical adsorption action due to both the silica layer and the metal layer. In addition to these, there are zeolites that form regular hexahedrons, amorphous natural zeolites, Mizukanite, montmorillonite having a three-layer structure, and monoclinic sepiolite. An aqueous solution of dialdehyde starch is also used as a binder when the deodorant substance is treated on the object to be treated.

Since this silicate is a fine powder of a mineral substance, a binder is necessary for treating textile products, paper products, filters and the like. Conventionally, as a binder used for such a purpose, a general polymer resin aqueous emulsion, natural or synthetic latex, etc. have been used, but many ordinary resin emulsions impair the deodorizing property.

In the present invention, an aqueous solution of dialdehyde starch is used as the binder. The dialdehyde starch is
Obtained by oxidizing starch with periodic acid. This compound has excellent properties as a binder. Dialdehyde starch has been used as a paper strength additive for papermaking but has never been used as a binder.
This dialdehyde starch aqueous solution can be used as a deodorant, although it is known. In the present invention, the effect as a binder is applied rather than the deodorant property,
The synergy of deodorant efficacy is a byproduct result.

The fine mineral powder used in the present invention is dispersed in water before use. The method is 10 to 50% by weight of a fine powder of mineral matter (hereinafter all shown in% by weight),
Preferably, 20 to 40% is used in combination with a dispersant and a stabilizer, and a stable aqueous dispersion is obtained by vigorous stirring. The dialdehyde starch is used as a 10 to 30% aqueous solution, and the mixing ratio is 30% of fine powder of silicate mineral substance.
20% of dialdehyde starch to 3 to 6 parts as a dispersion liquid
The mixture is used as an aqueous solution at a ratio of 5 to 6 parts. As for the treatment amount, the stock solution of this compounded solution or a 2 to 10-fold solution is treated so as to have a coverage of 80 to 120% with respect to the object to be treated.

The objects to be processed by the deodorant composition of the present invention include, for textiles, curtains, indoor linings, ornaments, sports equipment, footwear such as insole slippers lining rubber boots, paper. The product can be applied to shoji paper, fusuma paper, trash bags, closet insoles, interior parts of automobiles, disposable paper filters for electric vacuum cleaners and many other things.

By processing these, for example, shoji paper and fusuma paper produce a bad odor due to cigarette smoke, shoes cause a bad odor due to stuffiness of the foot, and when the dust collecting paper bag of an electric vacuum cleaner is processed, it is cleaned. While the machine is idle, organic odors in the dust bag are decomposed and generated by microorganisms, and a odorous gas is generated during the rainy season when closed, but these odors are absorbed and removed to create a comfortable living environment. Can be created.

Since the deodorant of the present invention uses an inorganic porous mineral substance and a starch derivative which is a natural product, there is no worry at the time of disposal. Moreover, there is no fear of environmental pollution. The deodorant of the present invention is a germicide,
Antifungal agents, insecticides, reducing agents and other deodorants and binders can also be used.

[0016]

The present invention is applicable to various fine powders of natural or synthetic minerals such as porous silicate or sepiolite, zeolite and montmorillonite as deodorant components for clothing, exercise equipment and other textile products or paper products or non-woven fabrics, air conditioning related products. The present invention is applied to a filter, etc., but a dialdehyde starch obtained by oxidizing starch is applied as a binder used for fixing the fine powder of the mineral substance to an object to be treated. This dialdehyde starch is a binder that has an excellent adhesive property of fixing to the object to be treated, while hardly deteriorating the deodorizing property of the fine porous mineral powder as the deodorizing component. Although it is known, it also has deodorant properties, and a synergistic action with the deodorant substance used in the present invention was also recognized.

[0017]

【Example】

(Example 1) Sepiolite (product of Uji Denki Kogyo Co., Ltd.) as a fine powder deodorant substance of a porous silicate mineral substance 3
After adding 00 g to 694 g of water, 40 g of polyoxyethylene stearyl ether as a dispersant and 1 g of carboxymethyl cellulose as a thickener are added, and TK
A homodisperse (Tokushu Kika Kogyo Co., Ltd.) was used and intensive stirring was performed for 10 minutes at a rotation speed of 5,000 to 6,000 rpm to obtain a stable dispersion liquid.

Example 2 To 800 g of water, 100 g of dialdehyde starch is added. About 80 to 8 while stirring the liquid
Heat to 5 ° C. When the temperature rises to 70 ° C. or higher, the viscosity gradually increases, but the viscosity gradually decreases with continued stirring. When the liquid becomes watery, add the remaining 100 g and operate in the same manner. When it becomes completely watery, stop heating,
Correct the weight to 1000 g by adding water. When the solution reaches room temperature, adjust the pH to 4.0-5.0 with dilute hydrochloric acid.

Deodorant test method In the deodorant test, a test cloth (all having a size of 560 cm ² ) was hung on a desiccator having an internal volume of 6.5 liters, and ammonia, trimethylamine, and hydrogen sulfide were respectively added to each desiccator so as to have respective concentrations. After being sealed inside, the change in each concentration was followed by the passage time.

The malodorous components used in the experiment and the initial concentrations in the desiccator are as follows. Ammonia 1300ppm Trimethylamine 100ppm Hydrogen sulfide 20ppm

The concentration of the malodorous gas was measured with a gas detector tube manufactured by Gastec. Further, the measurement of the gas concentration was carried out three times 30 minutes, 60 minutes and 90 minutes after the start of the test.

Formulation of Deodorant A fixed amount of deodorant was prepared by using the fine powder deodorant aqueous dispersion of the porous silicate mineral substance of Example 1 and the dialdehyde starch aqueous solution of Example 2. Was prototyped and subjected to a deodorant test.
The compounding ratio is shown in Table 1.

[Table 1]

Deodorant No. 1-No.
After adding 20 parts of 6-mixed solution to 80 parts of water and stirring well to make a uniform solution, cotton knitted fabric (200 g / m ² ) is dipped,
After squeezing with a mangle so that the squeezing ratio is 100%, 80 ~
After drying at 85 ° C. for 10 minutes, a deodorizing test for ammonia, trimethylamine and hydrogen sulfide was conducted. The results are shown in Table 2.

[Table 2]

(Example 3) Deodorizing effect test for a vacuum cleaner dust-collecting paper bag using the deodorant of the present invention Example 1 was applied to 1 part of the aqueous dispersion of porous mineral fine particles shown in Example 1. 1 part of the aqueous dialdehyde starch solution shown in 1 was mixed to obtain a deodorant. This liquid is used as an electric vacuum cleaner (Manishita Electric Industrial Co., Ltd. CANISTER-7 MC-A70P)
Dust-collection paper bag (inner bag paper 13 to 15 g / m ² ,
The inner bag paper and the outer bag paper were each dipped into the outer bag paper 80 to 85 / m ² ) as a stock solution, squeezed with a mangle to a draw ratio of 100%, and dried at 90 to 90 ° C. After drying, a double layer of an inner bag paper and an outer bag paper, the same as the dust collection bag used in the vacuum cleaner, was prepared and mounted in the vacuum cleaner, and continuously operated for 21 hours. Experiments of the deodorizing effect remaining after each ventilation were carried out for those after 5 hours, 10 hours, 15 hours, 21 hours and 0 hours in this operating time. The results are shown in Table 3. This 21-hour continuous ventilation is equivalent to use for three months in a general household.

[Table 3] (Example 4) A paper treated with the deodorant of the present invention was hung in a room for one year, and an experiment was conducted on the decrease of the deodorant function during that period. Filter paper (product of Toyo Roshi Kaisha, Ltd.) Qualitative filter paper No. Two four
5 cm × 45 cm is shown in Table 1. After being dipped in the stock solution of No. 3, it was squeezed with a mangle so as to have a squeezing ratio of 100% and dried at 90 to 95 ° C. This filter paper was hung in a normal room where direct sunlight did not enter for one year. During this time,
The deodorizing function remaining every two months was tested using various malodorous components. The results are shown in Table 4.

[Table 4]

INDUSTRIAL APPLICABILITY According to the present invention, a fine powder of a natural or synthetic porous mineral substance having a deodorant property is treated with a binder in a textile product, a paper product, a non-woven fabric or a filter,
It absorbs and removes the bad odors in the room, and provides a comfortable living environment.However, when treating the deodorant component to be treated, an aqueous solution of dialdehyde starch as a binder or an acryl as an auxiliary agent It is possible to firmly fix the polymer by using an acid ester or methacrylic acid polymer aqueous dispersion together. Although the deodorant property is known, the dialdehyde starch has a strong adhesive effect and a synergistic effect of the deodorant effect with the porous mineral substance of the present invention.

Claims (2)

[Claims] 1. When a fine mineral powder is used as a deodorant substance for treating natural fibers or synthetic fibers, or a fiber product made of a blended product thereof, a non-woven fabric, a paper product, and a filter used for air-conditioning, a diester as a binder. A deodorant composition comprising using an aqueous aldehyde starch solution. 2. The deodorant composition according to claim 1, which further comprises an aqueous dispersion of acrylic acid ester or methacrylic acid ester polymer as a binder efficacy enhancer for the aqueous dialdehyde starch solution.