JPH0665057A - Bathing agent - Google Patents

Abstract

PURPOSE:To provide a bathing agent capable of, when applied to a bath, giving a sufficiently smooth touch to a bather as if in a hot spring during bathing and of making the skin of the bather moist for preventing dryness of the skin after coming out of the bath. CONSTITUTION:This agent contains 20 to 98wt.% one or more kinds of alkaline inorganic salts and 0.1 to 4.0wt.% one or more kinds of nonionic surfactants selected from a polyethylene glycol fatty acid ester, a polyoxyethylene alkyl phenyl ether, a polyoxyethylene polyoxypropylene alkyl ether and a polyoxyethylene polyoxypropylene glycol, each having >=12 HLB.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathing agent, and more particularly to a bathing agent composition which gives a bather's skin a smooth and moist feeling when used in a bath water.

[0002]

2. Description of the Related Art Conventionally, various bathing agents have been known to be used by pouring them into bath water.
Inorganic salts such as sodium sulfate, sodium hydrogencarbonate, sodium carbonate, borax, sodium sesquicarbonate are the main ingredients. Among these inorganic salts, alkaline inorganic salts such as sodium hydrogen carbonate, sodium carbonate, borax, and sodium sesquicarbonate have the effect of emulsifying skin fats and secretions, washing them off cleanly, and softening the skin. , It removes the keratin layer on the surface, so it has the effect of making the skin smooth and smooth.

[0003]

However, the effect of making the skin smooth is not sufficient at the usual amount of use, and if the amount of alkaline inorganic salts is increased to obtain this effect sufficiently, Some people with weak skin and those with dry skin have the problem that their skin becomes bulky when they go up, even if they feel smooth and comfortable while taking a bath. Therefore, the present inventor has conducted diligent research to solve this problem, and as a result, a bathing agent in which a specific amount of an alkaline inorganic salt and a specific nonionic surfactant are blended can solve the above problems. The inventors have found the above and achieved the present invention.

That is, the object of the present invention is to utilize the above-mentioned achievements of the present inventor, and when applied to a bath water, it should be sufficiently smooth as when a bather is taking a bath. It is an object of the present invention to provide a bathing agent which gives a feeling and which can be moisturized without rising the skin of a bather when it rises above the bath water.

[0005]

The means of the present invention for achieving the above-mentioned object is 20 to 98% by weight of at least one kind of alkaline inorganic salt (hereinafter simply referred to as%).
And at least one nonionic selected from the group of polyethylene glycol fatty acid esters having HLB of 12 or more, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers and polyoxyethylene polyoxypropylene glycols. It is characterized in that it contains 0.1 to 4.0% of a surfactant.

Examples of the alkaline inorganic salts include borax, sodium hydrogen carbonate, sodium carbonate and sodium sesquicarbonate, and at least one of them is used. The alkaline inorganic salts give the bather a smooth feeling on the skin, and the content thereof is in the range of 20 to 98%, preferably 30 to 70%. If this blending amount is less than 20%, there is almost no effect of smoothness,
When it is more than 98%, there is no room for blending other components, and the blending amount of the nonionic surfactant is small, so that the skin feels bulky.

Nonionic surfactants, together with alkaline inorganic salts, improve the smoothness of the skin by HLB1.
Use two or more. Examples of the polyethylene glycol fatty acid esters that can be used include polyethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol distearate, and polyethylene glycol monooleate.

Examples of the polyoxyethylene alkylphenyl ethers include polyoxyethylene octyl phenyl ether, polyoxyethylene nonyl phenyl ether, polyoxyethylene dinonyl phenyl ether and the like. The polyoxyethylene polyoxypropylene alkyl ethers include, for example, polyoxyethylene polyoxypropylene butyl ether, polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene lauryl ether and the like. Examples of polyoxyethylene polyoxypropylene glycols include polyoxyethylene (160) polyoxypropylene glycol (3
0), polyoxyethylene (300) and polyoxypropylene glycol (55).

The nonionic surfactant is one or two of polyethylene glycol fatty acid esters, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers and polyoxyethylene polyoxypropylene glycols. The above can be mixed and used. The blending amount of the nonionic surfactant is in the range of 0.1-4.0%, preferably 0.5-, in order to be shared with the alkaline inorganic salts.
It is 3.0%. If it is less than 0.1%, there is almost no feeling of smoothness and moistness, and if it is more than 4.0%, bubbles are generated during use.

If desired, the bath additive of the present invention may contain various auxiliary components usually used in conventional bath additives. This auxiliary component includes inorganic salts and acids (inorganic acid,
Organic acids), crude drugs, fats and oils, fragrances, pigments, moisturizers, vitamins, proteolytic enzymes, etc. The bathing agent may be in any form such as powder and tablets.

[0011]

[Function] Alkaline inorganic salts give the bather a feeling of smoothness during bathing. The nonionic surfactant having HLB of 12 or more improves the smoothness of the skin during bathing together with the alkaline inorganic salts. In addition, the nonionic surfactant has a function of moisturizing the skin of a bather who comes out of the bath water.

[0012]

EXAMPLES Next, examples of the present invention will be described together with comparative examples. Formulation examples 1 to 5 were prepared as this example, and formulation examples 6 to 9 were prepared as comparative examples. Formulation Examples 1 to 5 and Formulation Example 6
The respective components and blending amounts of 9 to 9 are as shown in Table 1. The components of each of the formulation examples 1 to 9 are prepared by mixing them by an appropriate mixing means for each formulation example, and each bath agent 1 corresponding to each of the formulation examples 1 to 9 is prepared.
~ 9 was obtained.

[0013]

[Table 1]

Then, the prepared bath agents 1 to 9 were poured into bath water, and the effect of each bath agent 1 to 9 was investigated. Judgment of effectiveness is based on panelists' evaluation. That is, using a total of 10 male and female panelists (25 to 35 years old), 25 g of the powder of each bath agent 1 to 9 is poured into 200 L of bath water at 40 ° C. to be dissolved, and each panel panel is usually used. After bathing according to the method, a comparative evaluation was performed on the smooth feeling during the bath and the moist feeling after the bath. The evaluation criteria are the average values of 10 persons according to the criteria shown in Tables 2 and 3 below.

[0015]

[Table 2]

[0016]

[Table 3]

The panelists' evaluation results are shown in Table 4.

[0018]

[Table 4]

As is clear from Table 4, each of the bath salts 1 to 5 of the present example has a very excellent smoothness during bathing as compared with the bath salts 6 to 9 of the comparative examples, and after bathing. It is recognized that it has a sufficient moist feeling.

[0020]

[Effects of the Invention] The bath agent of the present invention gives a sufficiently smooth feeling during bathing and gives a moist feeling to the skin without making the skin bulky when the temperature rises above the bath water.

Claims (1)

[Claims] 1. At least one of the alkaline inorganic salts is 2
0 to 98% by weight and at least HLB of 12 or more, selected from the group of polyethylene glycol fatty acid esters, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers and polyoxyethylene polyoxypropylene glycols. 0.1 to 4.0 of a kind of nonionic surfactant
A bath additive characterized by being contained in a weight percentage.