JPH09104612A - Antiperspirant composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an antiperspirant composition excellent in antiperspiring effect and its persistency and capable of using by dissolving shower water or by applying to skin moistened after showering or after bathing by combinedly using a perspiration suppressing agent and specific two kinds of compounds. SOLUTION: This antiperspirant composition is obtained by combining (A) perspiration suppressing agent with (B) a polymer absorbable to skin and (C) alcohols. The perspiration suppressing agent includes an aluminum salt, an aluminum zirconium complex or salicylic acid. The polymer absorbable to skin includes a cationic polymer or a carboxybetaine type polymer. The alcohols includes a 1-6C monovalent or polyhydric alcohol. These components A, B and C are each blended in amounts of 0. 01-15wt.%, 0.02-5wt.% and 5-30wt.% based on the composition. The weight ratio of components A/B is preferably (90/10) to (40/60). Furthermore, the composition has good touch feeling to skin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention has an excellent antiperspirant effect and its durability by being dissolved in shower water or applied to skin wet with water after showering or bathing, and the skin feel It relates to a good antiperspirant composition.

[0002]

2. Description of the Related Art The effects obtained by taking a shower include the ability to easily cleanse the skin and give a refreshing feeling to the whole body. BACKGROUND OF THE INVENTION Lotion and emulsion type body cosmetics and powder type antiperspirant deodorant are applied. In addition, there is a method of incorporating a solid agent having such an effect into a shower head and dissolving it in shower water, and so on.

[0003]

However, these conventional lotions and emulsion-type body cosmetics and powder-type antiperspirant deodorant agents are usually used for dry skin after towel drying, etc. There is a problem in that it takes time to apply and lacks convenience in using it on the whole body. On the other hand, when a conventional antiperspirant is directly applied to the skin wet with water after showering, the skin persistence of the active ingredient is poor,
There was a problem that the antiperspirant effect and its durability were extremely low.

Therefore, an object of the present invention is to provide an antiperspirant to be applied to wet skin after showering or bathing, or to be applied during showering, which has a good antiperspirant effect and its durability. To provide.

[0005]

Therefore, the present inventors have conducted various studies on the feel of the skin in addition to the antiperspirant effect and its durability when the antiperspirant composition is applied to the skin wet with water, and as a result,
The inventors have found that a composition prepared by combining an antiperspirant, a skin-adsorbing polymer and alcohols in combination is excellent in all of these actions, and completed the present invention.

That is, the present invention provides (A) an antiperspirant,
(B) Skin-adsorptive polymer and (C) Alcohols are contained in the composition, and the composition is applied to water-wet skin or incorporated into a shower head and dissolved in shower water to be used by taking a shower. The present invention provides an antiperspirant composition for.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As the antiperspirant (A), aluminum salts such as allantoin chlorohydroxyaluminum, aluminum chloride, chlorohydroxyaluminum, chlorohydroxyaluminum, allantoin dihydroxyaluminum, aluminum sulfate, potassium alum and aluminum hydroxide, Examples thereof include aluminum zirconium tetrachlorohydroxyglycine, aluminum zirconium pentachlorohydrate, and other aluminum zirconium complexes, zinc oxide, zinc salts such as zinc p-phenolsulfonate, salicylic acid, and tannic acid. Of these, allantoin chlorohydroxyaluminum, aluminum chloride, chlorohydroxyaluminum, and aluminum hydroxide are particularly preferable. The amount of the antiperspirant compounded is 0.01 to 15% by weight in the antiperspirant composition.
(Hereinafter, simply indicated by%) is preferably 0.1 to 0.1.
5% is particularly preferable.

As the adsorbent (B), cationized cellulose, cationized starch, cationized dextran,
Cationized dextrin, cationized polyacrylic acid,
Chitosan, cationized vinylpyrrolidone polymer, cationized keratin, cationized collagen, chloride-N, N
-Dimethyl-3,5-methylenepiperidinium polymer, water-soluble cationic polymer such as cation-modified silicon, poly [oxy {1- (N-carboxymethyl-N
-Hydroxyethyl-N-methylammonio) methyl}
And carboxybetaine type polymers such as ethylene]. Among them, cationized cellulose, carboxybetaine type polymer and cationized silicon are preferable.
The content of the adsorbent is 0.01 to 20% in the antiperspirant composition.
Is preferable, and 0.02 to 5% is particularly preferable. Further, the mixing ratio of the component (A) and the component (B) is preferably (A) / (B) = 90/10 to 40/60, and particularly preferably 85/15 to 50/50.

Examples of the alcohols (C) include ethanol, glycerin, 1,3-butylene glycol, propylene glycol, monohydric or polyhydric alcohols having 1 to 6 carbon atoms such as sorbitol. Of these, monohydric alcohols, particularly ethanol, are particularly preferable. The content of alcohols is preferably 5 to 30% in the antiperspirant composition, and particularly preferably 2 to 150 times by weight that of the antiperspirant (A).

The antiperspirant composition of the present invention is in the form of an aqueous suspension or an aqueous gel or solid containing an aqueous solution or powder, and is directly applied by a bottle, a pump, a spray or the like, or by a tool. It can be applied to the body indirectly. When it is directly applied to the skin, it is used by applying it to the skin which is wet with water after showering or after bathing. Also, it is used by incorporating it into a shower head and taking a product dissolved in shower water. After applying to wet skin or bathing with an aqueous solution, it may be towel-dried as it is or may be washed off with a shower or the like.

[0011]

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to obtain an antiperspirant composition which has an excellent antiperspirant effect even on wet skin after showering or after taking a bath, and has excellent durability. .

[0012]

The present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 5 and Comparative Examples 1 to 3 Liquid antiperspirant compositions having the compositions shown in Table 1 were prepared by a conventional method, and the antiperspirant effect was evaluated by 5 test subjects. That is, the skin is washed with soap, about 10 ml of the antiperspirant composition is applied to the whole wet skin after showering, and after towel drying, enter the room adjusted to 40 ° C / 80% RH and enter The sweating state was evaluated 10 to 30 minutes later. Scores were assigned by 5 subjects and evaluated by averaging the scores.
The evaluation criteria of each subject were 1; no effect, 2; slightly effective, 3; effective, and 4; very effective, and the score was determined by the average value X of 5 persons for each prescription. Table 1 shows the results.

Score 1: No effect (0 <X <1) Score 2: Some effect (1 ≦ X <2) Score 3: Effective (2 ≦ X <3) Score 4: Very effective (3 ≦) X <4)

[0015]

[Table 1]

From Table 1, the antiperspirant compositions (Examples 1 to 5) in which the antiperspirant (alum) and the adsorbent were combined with alcohol (Examples 1 to 5) were prepared without adding alum (Comparative Example 1). It can be seen that the antiperspirant effect is significantly improved as compared with the case where no addition is made (Comparative Example 2) or the case where no alcohol is added (Comparative Example 3).

Examples 6 to 10 and Comparative Example 4 An antiperspirant composition having the composition shown in Table 2 was prepared, and the same tests as in Example 1 were conducted and evaluated in the same manner. Table 2 shows the results.

[0018]

[Table 2]

From Table 2, the antiperspirant compositions of Examples 6 to 10 containing aluminum hydroxide, zinc oxide and chlorohydroxyaluminum as the antiperspirant and an adsorbent were not adsorbed. It can be seen that the antiperspirant effect is remarkably improved as compared with the antiperspirant composition of Comparative Example 4.

Examples 11 to 15 and Comparative Examples 5 to 9 Antiperspirant compositions having the compositions shown in Table 3 were prepared, and the same tests as in Example 1 were conducted and evaluated in the same manner. Table 3 shows the results.

[0021]

[Table 3]

From Table 3, the antiperspirant compositions of Examples 11 to 15 containing cationized cellulose (adsorbent) were compared with the antiperspirant compositions of Comparative Examples 5 to 9 containing no cationized cellulose. It can be seen that a high antiperspirant effect can be obtained.

Example 16 The components were mixed according to the formulation shown in Table 4, dissolved by heating at 70 ° C., poured into a mold in an amount of about 30 g each, and cooled to room temperature for molding. The molded product was fixed in the shower head using a mesh so that it gradually dissolves and dissolves in the shower water, and used by showering with shower water.

[0024]

[Table 4]

Claims (4)

[Claims] 1. A shower which comprises (A) an antiperspirant, (B) a skin-adsorptive polymer and (C) an alcohol, which is applied to wet skin or incorporated in a showerhead. An antiperspirant composition for use by dissolving in water and taking a shower. 2. The antiperspirant (A) is an aluminum salt,
The antiperspirant composition according to claim 1, which is one or more selected from a zinc salt, an aluminum zirconium complex, salicylic acid and tannin. 3. The antiperspirant composition according to claim 1, wherein the skin-adsorptive polymer (B) is one or more selected from cationic polymers and carboxybetaine type polymers. 4. The antiperspirant composition according to claim 1, wherein the alcohol (C) is one or more selected from monohydric or polyhydric alcohols having 1 to 6 carbon atoms.