JPS61271028A - Emulsifying composition - Google Patents

Abstract

PURPOSE:To enhance the feeling under usage and to improve the safety and usable period by blending 0.2-5wt% polymolecular chain emulsifier whose HLD is <=9 to prepare the emulsifying composition containing powder and soap. CONSTITUTION:A polyhydric alcohol having >=3 hydroxy radicals in one molecule and ester ethylene oxide of higher fatty acid are subjected to an addition reaction to obtain polymolecular chain emulsifier whose HLB is >=9. This polymolecular chain emulsifier includes polyoxyethylene hardened castor oil ether, polyoxyethylene glyceryl fatty acid ester, etc. 0.2-5wt% of the above- described polymolecular chain emulsifying agent is blended with about 1-20wt% powder and about 0.5-5wt% soap to prepare the emulsifier agent. This powder is an inorganic powder such as titanium oxide, kaolin, etc. or an organic powder such as crystalline cellulose, nylon powder, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention provides an emulsified composition containing powder and soap.
LB is 9 or more and a polymolecular chain emulsifier is 0.2 to
Regarding an emulsion composition characterized by containing 5% by weight,
The present invention provides an emulsified composition that has a glossy appearance, is easy to apply to fingers, and has excellent usability and stability.

[Conventional technology]

Cosmetics are generally used to maintain healthy and beautiful skin and create beauty, but in addition to being of excellent quality, they must also be easy to remove the contents from the product container, and be easy to handle by hand. The appearance of the emulsified composition when applied, the feel of the skin when applied, the moistness of the skin after application, etc. are also important.

Among these, emulsified compositions that use a combination of powder and soap have the disadvantages of being difficult to remove with fingers, having a rough appearance when picked up, and not blending into the skin when applied. .

In general, powders are formulated to provide a feeling of adhesion to the skin, lightness, and powdery feel, as well as to protect the skin from external elements such as ultraviolet rays. ,
It is blended for purposes such as cleaning effect, hardness adjustment, and stability improvement.

However, while emulsified compositions containing these two components at the same time have their own characteristics in terms of usability, as mentioned above, they have a poor appearance, are difficult to remove from the fingers, and do not blend into the skin when applied. There was a drawback.

[Problem that the invention seeks to solve]

In view of these circumstances, the present inventors have conducted extensive research to solve the above-mentioned drawbacks, and have found that an emulsified composition containing a specific amount of a specific emulsifier in addition to powder and soap has poor removal on fingers; We discovered that it solves the problems of poor appearance when picked up, rough feel when applied, etc., has good stability, and has the characteristics of a skin cosmetic.
Based on this knowledge, we have completed the present invention.

[Means for solving problems]

That is, the present invention provides an emulsifying composition containing powder and soap, which has an HLB of 9 or more and contains 0.2 to 5% by weight of a polymolecular chain emulsifier. It is something.

The configuration of the present invention will be explained in detail below.

As the powder used in the present invention, conventionally known powders can be used. Examples of inorganic powders include titanium oxide, kaolin, silica, zinc white, calcium carbonate, talc, barium sulfate, magnesium carbonate, mica, and the like. Examples of the organic powder include crystalline cellulose, nylon powder, polyethylene powder, and the like. One or two of these inorganic powders and organic powders
The number of seeds or more is selected depending on the usability, but the blending amount is 1 to 20.
Weight percent is preferred.

If it is less than 1% by weight, the usability may not be as light, and if it exceeds 20% by weight, emulsification may deteriorate.

The soap used in the present invention is made by treating higher fatty acids with a basic substance to form a salt. Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, and palmitoleic acid. , oleic acid, isostearic acid, ricinoleic acid, liluic acid, linoleic acid, dimer acid, 1.10-decamethylene dicarboxylic acid, 1.11-undecamethylene dicarboxylic acid, 1.
12-dodecamethylene dicarboxylic acid, 1.13-tridecamethylene dicarboxylic acid, 1.14-tetradecamethylene dicarboxylic acid, 1.15-pentadecamethylene dicarboxylic acid, 1,16-hexadecamethylene dicarboxylic acid,
1.17-hebutadecamethylenedicarboxylic acid, 1.18
Examples include -octadecamethylene dicarboxylic acid, 1.19-nonadecamethylene dicarboxylic acid, and 1.20-eicosamethylene dicarboxylic acid. The blending amount is preferably 0.5 to 5% by weight based on the total amount of the emulsified composition of the present invention.

The basic substances that form the salts of higher fatty acids include hydroxides such as sodium hydroxide and potassium hydroxide, basic amino acids, and amines such as triethanolamine. The blending amount is preferably in the range of 0.1 to 1 in molar ratio to the above-mentioned higher fatty acid.

The higher fatty acids and basic substances can be used alone or in combination of two or more.

The polymolecular chain emulsifier used in the present invention is one obtained by adding ethylene oxide to an ester of a polyhydric alcohol having three or more hydroxyl groups in the molecule and a higher fatty acid.

Examples of polyhydric alcohols having three or more hydroxyl groups in the molecule include glycerin, diglycerin, glucose, mannose, fructose, gluconic acid, glucuronic acid, erythrol, ribulose, xylulose, psicose,
sorbose, tagatose, erythrose, toluose,
Examples include ribose, arabinose, lyxose, allose, aldrose, gulose, idose, galactose, gulose, sorbitol, threitol, erythritol, pentaerythritol, starch degradation line reducing alcohol, and the like.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, palmitoleic acid, oleic acid, isostearic acid, and the like.

These are subjected to an ester reaction with the above-mentioned polyhydric alcohol in an appropriate ratio. Further, depending on the application, a suitable amount of ethylene oxide is reacted to form oxyethylene.

Polymolecular chain emulsifiers that can be used include, for example, polyoxyethylene hydrogenated castor oil ether, fatty acid ester of polyoxyethylene hydrogenated castor oil ether, polyoxyethylene glyceryl fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, etc. ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene diglycerin fatty acid ester, etc. Among these, those having an HLB of 9 or more are used in the present invention.

In the present invention, one or more of the above-mentioned emulsifiers are selected and used. The blending amount is 0.2 to 5% by weight in the emulsion composition of the present invention.

If it is less than 0.2% by weight, the appearance will be insufficiently glossy;
Exceeding this weight percent is not preferable because it may cause irritation in terms of safety.

In addition to the above-mentioned essential components, the emulsified composition of the present invention may contain oil, a humectant, a surfactant, a fragrance, a preservative, a pigment, etc. as necessary.

Of course, these must be used under qualitative and quantitative conditions that do not impair the purpose of the present invention.

When the emulsified composition of the present invention was evaluated as a skin cosmetic, it was found to be superior in usability in terms of ease of removal on the fingers, appearance when picked up, and ease of spreading when applied, compared to conventional products. hand,
It has the properties required for an emulsified composition, such as safety and usable period.

〔Example〕

Next, the present invention will be explained in more detail with reference to Examples. The present invention is not limited thereby.

The blending amount is in weight%.

(Left below) (Manufacturing method) Heat and mix water parts ■ to ■ and adjust to 70°C. Oil phases ① to [phases] were mixed under heat in the same way, and the temperature was adjusted to 70°C, and the mixture was cooled to the water phases ① to ②. After making uniform emulsified particles with a homomixer, the mixture was cooled to 30°C. A cream with good stability was obtained.

(Effects) The creams of Examples 1, 2, 3, and 4 and Comparative Examples 1, 2.3 were tested on a panel of 10 women, and their usability was evaluated. The test items are as follows, and the evaluation is shown in the table below.

(A) Appearance inside the container and when taken on your finger ○: Shiny and shiny.

△: Slightly lacking luster.

×: Lack of luster and uneven appearance.

(B) Removal on fingers ○: A lot sticks to the fingers and can be removed easily.

△: It does not fit the finger a little.

×: It flicks off the finger and is difficult to remove.

(C) Ease of application ○: Can be applied evenly.

△: Slightly unsuitable.

×: Not familiar.

(D) Elongation during application O: Elongated uniformly.

Δ: Slightly difficult to stretch.

×: Rough and does not stretch.

(Left below) As is clear from Table 1, the creams of Examples 1 to 4 were:
Excellent appearance, removability on fingers, ease of application, and spreadability.
Furthermore, it was found that other usability requirements for a cream were satisfied.

(Margin below) ■＠ (Manufacturing method) The same applies to Examples 1 to 4.

(Hereinafter, blank space) Same as Examples 1 to 4, Example 5, 6.7.8°9,1
0 was found to be superior in terms of usability.

Example 11 Foundation ion exchange water to 100%
Glycerin 10 Magnesium aluminum silicate 0.6 Keltrol (Kelco) 0°2 Stearic acid
2 Caustic soda
0.4 stearic acid monoglyceride
2POE (40) Sorbitol monolaurate 5 Liquid paraffin 1
0 titanium oxide 9 talc
9 iron oxide red
0゜6 iron oxide yellow
1.2 iron oxide black
0.2 (Manufacturing method) According to Examples 1 to 4.

[Effects of the Invention] The product of the present invention has a glossy appearance not only when seen with the eye but also when held in the hand, is easy to remove from the fingers, is easy to apply, and spreads well when applied. It is an emulsified composition with excellent usability and good stability.

Claims (1)

[Claims] In an emulsified composition containing powder and soap, HLB is 9.
An emulsifying composition characterized by having the above properties and containing 0.2 to 5% by weight of a polymolecular chain emulsifier.