JP2009028530A - Deodorant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deodorant, exhibiting very effective deodorizing effect to smell of amines, mercaptans, fatty acid and formalin. <P>SOLUTION: This deodorant is liquid or powder deodorant formed by blending with at least one kind of deodorizing component selected from glyceraldehyde, glyceraldehyde hemiacetal, glyceraldehyde furfural acetal and dihydroxyacetone. It is possible to cope with malodor in a further wide range by blending monovalent, bivalent or trivalent alcohol, further amphoteric surfactant, ionic surfactant or further oxyacid metal salt, keto-carboxylic acid metal salt and glyoxylic acid metal salt. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an aqueous deodorant that exhibits an effective deodorizing action against a wide range of daily malodors. More specifically, the present invention is a deodorant corresponding to various cationic, anionic and other odors, and removes various odors in daily life such as body odor, filth odor and room odor. The deodorant of the present invention also has an antibacterial action.

In recent years, there has been a great interest in deodorization as the sense of smell around us has become more sensitive as the living environment changes. The odors that arise from the daily living environment are very diverse. Typical odors include cationic substances such as ammonia and amines; anionic substances such as mercaptans, hydrogen sulfide and organic acids; and aldehyde odors such as formalin as particularly unpleasant odors.
Conventionally, as a method of reducing malodorous components, masking unpleasant odors with strong fragrances; physical methods of adsorbing odors with porous adsorbents such as activated carbon and zeolite; odorous components with catalytic combustion and ozone Chemical methods such as an oxidizing method for oxidizing, a neutralizing method using chemicals, or biochemical methods such as decomposition of odorous components by bacteria are known. Various products currently on the market as deodorizers have a certain reduction effect on the odors of amines and mercaptans, but a slight odor is still felt by a person's keen sense of odor and satisfactory deodorant effect Has not yet been obtained.

In recent years, a new permanent agent is also used for permanent wave treatment in beauty salons and the like, but odor remains in the hair after treatment. For example, cysteamine exhibits an excellent curling effect on the hair, but odor remains for about 2 weeks after the permanent treatment, and the current commercially available deodorant does not have a deodorizing effect.
JP-A-8-198709

  An object of the present invention is to provide a deodorant exhibiting a very effective deodorizing effect against odors of amines and mercaptans. As a result of various studies to solve the above-mentioned problems, the present inventor obtained the knowledge that a compound such as glyceraldehyde exhibits a very excellent effect in deodorizing the above-mentioned odor, and completed the present invention.

  The present invention provides a deodorant comprising at least one deodorant component selected from glyceraldehyde, glyceraldehyde hemiacetal, glyceraldehyde fluoracetal and dioxyacetone. It is preferably liquid or powdery. The glyceraldehyde hemiacetal may be a glyceraldehyde dimer. The deodorizer of the present invention preferably contains a monovalent, divalent or trivalent alcohol. This deodorant is preferably further mixed with an amphoteric surfactant, a cationic surfactant and / or a nonionic surfactant.

Conventionally, there are also effective deodorants for amines and mercaptans. However, the deodorant that has reacted with the malodorous component has a vapor pressure at room temperature, and a trace amount of residual odor can be perceived by the sense of smell of the human body. The deodorant of the present invention reacts quickly with ammonia and mercaptan as active ingredients, and has a very low vapor pressure after the reaction and exhibits an excellent deodorizing effect.
Further, the deodorant of the present invention has a neutral pH, can be used in combination with monovalent, divalent or trivalent alcohol and can be used as a deodorant for various applications.

Detailed description of the invention

にて表されるグリセルアルデヒド二量体が用いられる。 (a) The active ingredient of the deodorant of the present invention is at least one component selected from glyceraldehyde, glyceraldehyde hemiacetal, glyceraldehyde fluoracetal and dioxyacetone. All of these can use commercially available products.
As the glyceraldehyde hemiacetal in the deodorizer of the present invention, the following formula:

The glyceraldehyde dimer represented by these is used.

(式中、Ｒは炭素数２〜６のアルキル基、アルキレン基、ＨＯ(ＣＨ_２)_３Ｏ−、又はＨＯ(ＣＨ_２)_４Ｏ−を意味する。)
にて表される化合物であってもよい。式(２)中、Ｒがアルキル基であるものとしてはエチル、プロピル、n-,iso-, sec-, ter-ブチル、アミル、ヘキシルなど炭素数２〜６のアルキル基が挙げられる。また、アルキレン基としてはエチレン、プロピレン、ブチレン、へキシレンなど炭素数２〜６のアルキレン基が挙げられる。 Glyceraldehyde hemiacetal has the following formula:

(In the formula, R means an alkyl group having 2 to 6 carbon atoms, an alkylene group, HO (CH ₂ ) ₃ O—, or HO (CH ₂ ) ₄ O—.)
The compound represented by these may be used. In the formula (2), examples in which R is an alkyl group include alkyl groups having 2 to 6 carbon atoms such as ethyl, propyl, n-, iso-, sec-, ter-butyl, amyl, hexyl and the like. Moreover, as an alkylene group, C2-C6 alkylene groups, such as ethylene, propylene, butylene, and hexylene, are mentioned.

(式中、Ｒ_１及びＲ_２は同一又は異なった炭素数１〜１２のアルキル基、アルキレン基又は炭素数４〜１６のポリエチレングリコール、ポリプロピレングリコール、ブチレングリコールの残基を表す。)
にて表される化合物である。式(３)中、Ｒ_１、Ｒ_２がアルキル基であるものとしては、メチル、エチル、プロピル、n-,iso-, sec-, ter-ブチル、アミル、ヘキシルなど炭素数１〜１２のアルキル基が挙げられる。また、アルキレン基としてはエチレン、プロピレン、ブチレン、へキシレンなど炭素数１〜１２のアルキレン基が挙げられる。 Further, glyceraldehyde fluoracetal used in the deodorant of the present invention has the following formula:

(In the formula, R ₁ and R ₂ represent the same or different residues of an alkyl group having 1 to 12 carbon atoms, an alkylene group, or polyethylene glycol, polypropylene glycol or butylene glycol having 4 to 16 carbon atoms.)
It is a compound represented by these. In formula (3), R ₁ and R ₂ are alkyl groups such as methyl, ethyl, propyl, n-, iso-, sec-, ter-butyl, amyl, hexyl, etc. Groups. Moreover, as an alkylene group, C1-C12 alkylene groups, such as ethylene, propylene, butylene, and hexylene, are mentioned.

The blending amount of these deodorant components may be appropriately changed according to the concentration of the deodorant component and the form of the deodorant, but is usually 0.01 to 30% by weight, preferably 0, based on the total amount of the deodorant. 0.1-5% by weight is used. If the blending amount is less than this, a sufficient deodorizing effect cannot be obtained. On the other hand, if the blending amount is more than this, the deodorizing effect is not improved. These deodorizing components may be used alone or in combination of two or more.
The dimer of glyceraldehyde (Formula 1) is solid at room temperature and can be used by coating on paper, non-woven fabric, resin and the like. Further, when dioxyacetone is used in combination with glyceraldehyde and glyceraldehyde hemiacetal, the deodorizing effect is further improved. The compounding amount (weight) in this case is 0.2 to 1.5, preferably 0.5 to 1, with respect to glycerol aldehyde or glycerol hemiacetal 1.

(B) Alcohol As the alcohol blended with the deodorant component, a monohydric alcohol such as ethanol or propanol, a dihydric alcohol such as ethylene glycol or propylene glycol, and a trihydric alcohol such as glycerin may be used. In particular, ethanol, propylene glycol, and glycerin are preferable. By blending alcohol, formalin can be further deodorized, dissolution of the deodorant component in water is improved, and a deodorant can be adjusted according to the malodor concentration. The blending amount of these alcohols is 70% by weight or less, preferably 1 to 30% by weight, more preferably 5 to 20% by weight with respect to the total amount of the deodorant. If the amount of alcohol is less than this, the deodorant component cannot be sufficiently dissolved. On the other hand, even if it is added in a larger amount, the solubility of the deodorant component in water does not change and the quality is not improved. In order to obtain good solubility in water, the alcohol should be blended in an equal amount or more with respect to the deodorant component.

The deodorizing agent of the present invention further improves the deodorizing ability against hydrogen sulfide, mercaptan, etc. by blending oxyacid metal salt, methyl vinyl ether maleic anhydride metal salt, ketocarboxylic acid metal salt, glyoxylic acid metal salt. . In addition, the addition of sodium pyruvate, which is a metal salt of ketocarboxylic acid, makes it possible to deodorize formalin. As the oxyacid, gluconic acid and glyceric acid are preferable.
Examples of the metal of the metal salt include sodium, potassium, calcium, copper, zinc, and iron, and copper, zinc, sodium, and calcium are preferable. The blending amount (weight) of these metal salts is 0.5 to 2, preferably 0.5 to 1, with respect to the deodorant component 1 described above.

(c) Surfactant It is preferable that an amphoteric surfactant, a cationic surfactant, and a nonionic surfactant are further added to the deodorant of the present invention, and those having HLB 10 to 16 are preferable.
Amphoteric surfactants include coconut oil fatty acid amidopropyl betaine, lauryl dimethylaminoacetic acid betaine, β-laurylaminopropionic acid sodium, etc., especially coconut oil fatty acid amidopropyl betaine, β-laurylaminopropionic acid sodium and deodorant. When the components are used in combination, the effect on fatty acids as well as the conventional deodorization of ammonia, amines and hydrogen sulfide mercabtan is improved and the deodorization range is expanded.
As the nonionic surfactant, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene coconut oil fatty acid sorbitan, etc., particularly polyoxyethylene lauryl ether are preferable.

  Deodorization is quickened by blending such a surfactant. It is estimated that the reaction rate between the deodorant component and the malodorous component is improved. The amount of these surfactants to be added is 0.1 to 20% by weight, preferably 1 to 6% by weight, based on the total amount of the deodorant. If the amount of the surfactant is less than this, the effect is not sufficient. On the other hand, if the amount is more than this, the deodorizing effect is not improved.

  The deodorant of the present invention has an excellent adsorptive power even for basic odors such as ammonia, which is a problem in daily life, and acidic odors such as mercaptans, as well as malodor-causing substances such as formalin, hydrogen sulfide, and fatty acids. Shows deodorant effect.

(Production method)
The deodorant of the present invention can be easily prepared by dispersing or dissolving each of the above components in an appropriate medium such as purified water or ethanol. For example, a predetermined amount of divalent or trivalent alcohol, a surfactant, and purified water are mixed, heated to 60 to 80 ° C., preferably 65 to 75 ° C., and a predetermined amount of deodorant component is added while maintaining the temperature. Stir to dissolve completely. Next, when heating is stopped and the temperature is lowered, a solvent such as ethyl alcohol or purified water is added to adjust the ingredients, and stirring is continued until the temperature reaches room temperature.

  The deodorant of the present invention can be used in powder or liquid form. Further, it may be used by impregnating or coating various base materials. For example, it can be applied to a base material having various shapes such as a sheet shape and a thread shape, or impregnated to increase the surface area of the deodorant to improve the deodorizing action. As such a substrate, a nonwoven material, a woven fabric, a fibrous material, a granular material, paper, a porous material such as zeolite, activated carbon, or the like is used alone or in combination.

Next, the present invention will be described more specifically based on examples. In the examples, the unit of the blending amount is gram.
[Example 1]
A deodorant was prepared using each component described in Table 1 below. That is, 5 g of glycerin was placed in a container (200 ml), 50 ml of purified water was added, and the mixture was heated to 70 ° C. While maintaining this temperature, 5 g of glyceraldehyde dimer was added and stirred until it was completely dissolved. When heating was stopped and the temperature dropped to 40 ° C., 5 g of ethyl alcohol and the remaining purified water were added to make a total amount of 100 g, and stirring was continued until room temperature was reached.

[Examples 2 to 7]
In the same manner as described above, each predetermined amount of divalent and trivalent alcohol, purified water and surfactant is taken in a container and heated, and after adding a deodorant component and completely dissolved, the temperature is lowered and ethyl alcohol and purified water are added. The ingredients were adjusted to obtain a deodorant.
(Deodorization test)
A filter paper (diameter: 10 cm) was impregnated with 10 g of the above deodorant solution, and this was put in a Tetra Pak container (capacity: 3 L) as a test sample. Nitrogen gas containing ammonia (initial concentration: 100 ppm) as a malodorous component was sealed in this container, and the internal ammonia concentration was measured over time. Similarly, hydrogen sulfide (initial concentration 40 ppm) was also measured. The results are shown in Table 1 below.

[Examples 8 to 18]
Similarly to the above, each predetermined amount of components shown in Table 2 was processed to prepare a deodorant. Similarly to the deodorization test, nitrogen gas containing ammonia, hydrogen sulfide, acetic acid, and formalin was sealed as malodor components, and the internal malodor concentration was measured over time. The results are shown in Table 2 below.

In addition to the deodorant component, the deodorizing performance for fatty acids and formalin was improved by adding a metal salt of ketocarboxylic acid such as metal salt of oxyacid or metal salt of pyruvate or metal salt of glyoxylate.
In recent years, as a permanent treatment agent for a beauty salon, in addition to conventionally used ammonium thioglycolate, treatment agents with excellent curling performance for hair such as cysteamine are commercially available. However, cysteamine remains for more than 10 days after permanent treatment and exhibits an unpleasant odor. The conventional deodorant has no effect on deodorizing cystiamine, which is a new permanent treatment agent, even if the permanent treatment agent such as ammonium thioglycolate has a deodorizing effect. The effect could be confirmed.

[Example 19]
5 g of glyceraldehyde was placed in a container, 7 g of glycerin, 3 g of ethanol, and 2 g of coconut oil fatty acid amidopropyl betaine were mixed, and water was added to make a total of 100 g. After heating at 80 ° C. for 30 minutes for complete dissolution, the temperature was returned to room temperature to obtain a deodorant.
(Hair deodorization test)
A deodorization test was performed in the next step.
(1) Take 0.5 g of human hair in a beaker.
(2) It was immersed in 10 ml of 3% cystiamine (hydrochloride) at 40 ° C. for 20 minutes.
(3) Wash with water for 3 minutes and then dehydrate.
(4) Add 2 ml of deodorant and 8 ml of water and soak for 10 minutes.
(5) Wash with water for 3 minutes and then dehydrate.
(6) It was immersed in 10 ml of 2% sodium bromate solution at 40 ° C. for 20 minutes.
(7) Wash with water for 3 minutes and then dehydrate.
(8) The sample was dried and subjected to a sensory test.
At the same time, a blank test in which the steps (4) to (5) were omitted was also performed for comparison.

(Odor test)
Measurer ABCD
Example 19-+--+--+
Blank + + + + +
(note)
-: No odor-+: Slight odor +-: Slight odor +: Strong odor

(注)
−：全く臭いなし −＋：わずかに臭いあり ＋−：少し臭いあり ＋：臭い強い

(note)
-: No odor-+: Slight odor +-: Slight odor +: Strong odor

  As described above, even when cysteamine was used as a permanent liquid treating agent, an excellent deodorizing effect was exhibited. When cysteamine is used as a permanent liquid, the deodorizing component (glyceraldehyde, glyceraldehyde hemiacetal, glyceraldehyde fluoracetal, dioxyacetone) is 0.5 to 0.5 parts per 1 part by weight of cysteamine. By adding 7 parts by weight, the odor can be reduced without losing the curling effect of the permanent liquid. Moreover, it can be used in combination with a permanent liquid treating agent without changing its pH value.

The deodorant of the present invention is suitable for removing a wide range of odors in daily life. It can be used as a deodorant in various fields such as body odor, pet odor, cigarette odor, odor due to filth / garbage from hospitals / houses / stores, and other strong odors attached to the room.
In particular, it is in the form of powder, liquid or spray cans and used in the form of aerosol, and is effective for deodorizing around toilets, kitchens such as garbage, and around pets. Furthermore, a deodorant can be coated on cloth, non-woven fabric, paper, etc., and used as a diaper (for infants, adults, pets) or a body odor prevention sheet. Furthermore, it is also effective for removing residual odor after permanent treatment of hair.

Claims (8)

A liquid or powdery deodorant comprising at least one deodorant component selected from glyceraldehyde, glyceraldehyde hemiacetal, glyceraldehyde fluoracetal and dioxyacetone. Glyceraldehyde hemiacetal has the following formula:

Or a glyceraldehyde dimer represented by the following formula:

(In the formula, R means an alkyl group having 2 to 6 carbon atoms, an alkylene group, HO (CH ₂ ) ₃ O—, or HO (CH ₂ ) ₄ O—.)
A compound represented by
Glyceraldehyde fluoracetal has the following formula:

(In the formula, R ₁ and R ₂ represent the same or different residues of an alkyl group having 1 to 12 carbon atoms, an alkylene group, or polyethylene glycol, polypropylene glycol or butylene glycol having 4 to 16 carbon atoms.)
The deodorizer of Claim 1 which is a compound represented by these. Furthermore, the deodorizer of Claim 1 or 2 formed by mix | blending monohydric, bivalent, or trivalent alcohol. Furthermore, the deodorizer in any one of Claims 1-3 formed by mix | blending oxy acid metal salt, methyl vinyl ether maleic anhydride metal salt, ketocarboxylic acid metal salt, and glyoxylic acid metal salt. The deodorizer according to claim 4, wherein the metal salt is a potassium salt, calcium salt, zinc salt, copper salt or iron salt. Furthermore, the deodorizer in any one of Claims 1-5 formed by mix | blending an amphoteric surfactant, a cationic surfactant, and / or a nonionic surfactant. A hair treatment agent comprising the deodorant according to any one of claims 1 to 6. The hair treatment method which processes hair using the shampoo or rinse which mix | blended the deodorizer in any one of Claims 1-6.