TW202327551A - Agent for suppressing unpleasant odor - Google Patents

Abstract

An agent for suppressing unpleasant odor during use of a hair dye or a decolorant composition containing an alkanolamine as an alkaline agent and being free from ammonia or ammonium salts, said agent for suppressing unpleasant odor comprising hydroxyethanediphosphonic acid (A), characterized in that the content of the component (A) therein relative to the hair dye or the decolorant composition is 0.001-1 mass%.

Description

odor suppressant

This application claims priority based on Japanese Patent Application No. 2021-172779 filed on October 22, 2021, the entire disclosure of which is incorporated herein by reference.

The present invention relates to an odor suppressor when used in a hair dye or decolorizer composition containing alkanolamine as an alkali agent and not containing ammonia and ammonium salt. More specifically, it relates to an amine-based odor suppressant when used in a hair dye or decolorizer composition containing alkanolamine as an alkali agent and not containing ammonia or ammonium salt.

In recent years, with the rise of fashion consciousness, hair dyes that can easily change the color of hair have been accepted by many people regardless of gender. There are various types of hair dyes such as permanent hair dyes, semi-permanent hair dyes, decolorizers and temporary colorants, which are used according to their own needs. Among them, permanent hair dyes and decolorizers have excellent hair dyeing and decolorization effects, and are currently the hair dyes used by many people based on this characteristic.

Permanent hair dyes and decolorizers of hair dyes are generally composed of a first agent containing an alkali agent and a second agent containing an oxidizing agent. As the general alkali agent used in the first agent, ammonia is used. However, ammonia has a strong pungent smell, and has the disadvantage of being uncomfortable with a pungent smell when used.

In order to solve the above-mentioned problems, Japanese Patent Application Laid-Open No. 2003-146847 discloses a hair treatment agent composition, which consists of an alkaline agent, a base material, and a reducing agent that constitute the hair treatment agent. , to select a specific proportion of components that stimulate the sense of smell from below the sensory limit of the sense of smell, without feeling the odor. In addition, Japanese Patent Application Laid-Open No. 2004-217672 discloses a hair dye composition in which an organic solvent, a poly Oxyalkylene compounds, lower alcohols or polyols, and do not contain ammonia, thereby reducing the irritating smell, and excellent hair decolorization and hair dyeing power. Both Japanese Patent Laid-Open No. 2003-146847 and Japanese Patent Laid-Open No. 2004-217672 contain non-pungent alkanolamine as an alkaline agent instead of ammonia and ammonium salts to solve the problem of the unique pungent smell of ammonia.

[Problem to be solved by the invention]

However, Japanese Patent Laid-Open No. 2003-146847 and Japanese Patent Laid-Open No. 2004-217672 have reviewed the odor suppression of the hair dye composition itself, but have not studied the alkanolamines used in hair dyeing and decolorization. The odor of amines was reviewed.

Therefore, the present invention was made in view of the above-mentioned problems, and relates to the odor suppression of the odor of amines when using a hair dye or decolorizing agent composition containing alkanolamine as an alkali agent and not containing ammonia and ammonium salts agent.

The inventors of the present invention found that in the odor suppressant when used in a hair dye or decolorizer composition containing alkanolamine as an alkaline agent and not containing ammonia and ammonium salt, by making the odor suppressant (A) a hydroxyl group Ethane diphosphonic acid can solve the above-mentioned problems, and thus the present invention has been accomplished.

That is to say, the present invention provides a kind of odor suppressor when used in hair dye or decolorant composition, which is in the hair dye or decolorant composition containing alkanolamine as alkali agent and does not contain ammonia and ammonium salt. The odor suppressant when in use is characterized in that the odor suppressant is (A) hydroxyethanediphosphonic acid, and the content of the aforementioned component (A) is 0.001 to 1% by mass relative to the hair dye or decolorizing agent composition . [Invention effect]

According to the present invention, it is possible to suppress amine odor when using a hair dye or decolorizer composition containing alkanolamine as an alkali agent and not containing ammonia or ammonium salt.

The present invention will be described in detail below. Also, the unit of content is mass % unless otherwise specified.

The term "odor" in the present invention refers to the smell of amines.

The term "use" in the present invention refers to the state in which the hair dye or decolorizing agent composition is dyed or decolored on the hair.

The hair dye or bleaching agent composition of the present invention is a mixture of the first agent containing an alkali agent and the second agent containing an oxidizing agent.

The aforementioned alkaline agent of the present invention is alkanolamine.

The aforementioned alkanolamine in the present invention is not particularly limited, but examples include monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, isopropanolamine, dipropanolamine, tripropanolamine, 2-amino -2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, 2-amino-2-hydroxymethyl-1,3-propanediol, etc., which may contain 1 more than one species.

The aforementioned alkali agent in the present invention does not contain ammonia and ammonium salt.

As the aforementioned ammonium salts of the present invention, ammonium salts of inorganic acids are exemplified by ammonium carbonate, ammonium bicarbonate, ammonium bicarbonate, ammonium sulfate, ammonium phosphate, ammonium nitrate, etc., and ammonium salts of organic acids are exemplified by ammonium citrate , ammonium acetate, ammonium oxalate, ammonium tartrate, etc.

The aforementioned oxidizing agent of the present invention is not particularly limited, but examples include, for example, hydrogen peroxide, urea peroxide, melamine peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, ammonium persulfate, sodium peroxide, peroxide Potassium oxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide, hydrogen peroxide adduct of peroxide salt, hydrogen peroxide adduct of phosphate, hydrogen peroxide adduct of pyrophosphate , sodium bromate, etc., these may contain more than one type.

The hair dye or decolorizer composition of the present invention may contain various ingredients commonly used in cosmetics, quasi-drugs, and pharmaceuticals, such as selected from other surfactants, oily ingredients, moisturizers, thickeners, and medicinal ingredients. , protein derivatives, hydrolyzed proteins, amino acids, stabilizers, antioxidants, plant extracts, herbal extracts, vitamins, fragrances, preservatives, pigments, pigments, powders, pH regulators, ultraviolet absorbers, At least one or more of antioxidants, fragrances, and the like.

The dosage forms of the hair dye or decolorizing agent composition of the present invention are, for example, emulsion, cream, gel cream, foam, aerosol foam, etc.

The odor suppressant used in the present invention may be contained in either one or both of the first agent and the second agent of the hair dye or bleaching agent composition.

The odor suppressant used in the present invention may be used in combination of one or more components.

The odor inhibitor of the hair dye or bleaching agent composition of the present invention is (A) hydroxyethane diphosphonic acid from the viewpoint of odor suppression.

The content of the aforementioned component (A) used in the present invention is preferably 0.001-1%, more preferably 0.05-1%, and even more preferably 0.5-1% relative to the hair dye or decolorizer composition. When the content of the aforementioned component (A) is less than 0.001%, there is a possibility that the odor cannot be suppressed. When content of the said (A) component exceeds 1%, it becomes difficult to acquire further effect.

The odor suppressant of the hair dye or decolorizing agent composition of the present invention, based on the viewpoint of improving the suppression of odor, may further combine (B) selected from pentasodium diethylenetriaminepentaacetate, tetraethylenediaminetetra One or more of tetrasodium acetate or trisodium ethylenediamine hydroxyethyltriacetate.

Among the above-mentioned (B) components used in the present invention, pentasodium diethylenetriaminepentaacetate is preferred from the viewpoint of improving odor suppression.

The content of the aforementioned component (B) used in the present invention relative to the hair dye or decolorizer composition is not particularly limited, but it is preferably 0.01~2%, more preferably 0.25~2%, and even more preferably 1~2% . When the content of the aforementioned (B) component is less than 0.01%, there is a possibility that the odor cannot be suppressed. And when content of the said (B) component exceeds 2%, it becomes difficult to acquire further effect. [Example]

The following examples illustrate the present invention in more detail, but the present invention is not limited to these examples.

In the evaluation test shown in this manual, the odor suppression shown in Table 3 and Table 4 was changed for the first hair dye composition and the second hair dye composition shown in Table 1 and Table 2. Prepare the hair dye composition while adjusting the content of the agent. In addition, the mixing ratio of the first hair dye composition and the second hair dye composition is 1:1, and the odor inhibitor of component (A) is included in the second hair dye composition in Table 2. , The odor suppressant of (B) component was contained in the hair dye composition 1st agent of Table 1 and implemented. In the first agent of the hair dye composition and the second agent of the hair dye composition, the amounts of the components (A) and (B) contained were prepared with pure water to be 100%. In addition, the unit which shows the content of each component is mass %, and it prepared according to the usual method.

[Test method for amine odor] 1 g of the hair dye composition containing the odor inhibitor shown in Table 3 and Table 4 was applied to human hair strands (BEAULAX Co., Ltd., human black hair 100% (1g×10cm)), and immediately applied to human hair. Comb the front and back of the bundle 20 times to make it even. Put the hair bundle coated with the hair dye composition containing the odor inhibitor into a beaker (IWAKI, 500ml beaker, outer diameter of the cup is 90mm × height 125mm), and seal the top surface of the beaker with a dura-seal film (DS4-500), Leave it for 10 minutes, after reacting with human hair strands, stick adhesive tape (Nitto Denko CS System Co., Ltd., cloth adhesive tape No.770) on the dura-seal film to prevent the dura-seal film from cracking. Insert the tip into the center of the upper part of the beaker so that it is at a height of 3 cm from the upper part of the beaker, operate the handle of the detection tube gas detector to inhale the gas for measurement, and measure the concentration of amines.

The models of detector tubes and detector tube gas detectors and the measurement conditions of the amines used are as follows. ‧Detection tube: GASTEC Co., Ltd., No. 180 ‧Tube-type gas analyzer: GASTEC, GV-100 ‧Measurement conditions Pumping times 1 time Suction volume 100mL Suction time 30 seconds

[Evaluation of odor when used sensory] (experiment method) For the first hair dye composition and the second hair dye composition shown in Table 1 and Table 2, the hair dye composition containing the odor suppressant shown in Table 3 and Table 4, using amine Odor-like test method Dyeing the wool, 15 specialized sensory testers conducted a sensory evaluation of the smell in the beaker after 10 minutes of dyeing, using Comparative Example 1 as a benchmark, and evaluated based on the following criteria.

(evaluation criteria) ⊚: 10 to 15 panelists evaluated that compared with Comparative Example 1, no odor was sensed. ◯: Compared with Comparative Example 1, the 5th to 9th panelists evaluated that no odor was sensed. ×: Compared with Comparative Example 1, the number of people who did not sense the odor was 4 or less.

Hereinafter, the first agent of the hair dye composition is described in Table 1, and the second agent of the hair dye composition is described in Table 2.

In Example 1 to Example 13 of Table 3 and Table 4, compared with Comparative Example 1 to Comparative Example 3, a good effect was obtained in suppressing the odor of amines.

[Industrial availability]

The present invention provides an odor suppressant that suppresses the odor of amines when used in a hair dye or decolorizer composition containing alkanolamine as an alkali agent and not containing ammonia or ammonium salt.

Claims (3)

An odor suppressor when used in hair dye or decolorant composition, which is an odor suppressor when used in hair dye or decolorant composition that contains alkanolamine as an alkali agent and does not contain ammonia and ammonium salt The inhibitor is characterized in that the odor inhibitor is (A) hydroxyethanediphosphonic acid, and the content of the aforementioned component (A) is 0.001-1% by mass relative to the hair dye or decolorizer composition. Odor suppressant when used in hair dye or decolorant composition as claimed in claim 1, wherein (B) is further selected from pentasodium diethylenetriaminepentaacetate, tetrasodium ethylenediaminetetraacetate or One or more types of trisodium ethylenediamine hydroxyethyltriacetate are combined with the aforementioned (A) component. As the odor suppressant when used in hair dye or decolorant composition according to claim 2, wherein the content of the aforementioned component (B) relative to the hair dye or decolorant composition is 0.01-2% by mass.