JPH03166300A - Transparent soap composition - Google Patents

Abstract

PURPOSE:To provide the subject composition containing specific amount of a specific ampholytic phosphate-type surfactant, having high transparency, produced in a short time, resistance to devitrification with time and giving beautifying, a protecting and moistening effect to the skin. CONSTITUTION:The objective composition contains 0.1-10.0wt.% (preferably 0.5-3.0wt.%) of an ampholytic phosphate-type surfactant expressed by formula I or formula II (R1 is 10-18C straight-chain alkyl), {e.g. 2-[dimethyl(2- hydroxydodecyl)ammonio]ethyl phosphate or 2-[dimethyl(3-hexadecyloxy-2- hydroxypropyl)ammonio]ethyl phosphate}.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transparent soap composition. More specifically, the present invention relates to a transparent soap composition that has increased transparency, can shorten the production period, prevents devitrification due to oral administration, and has excellent skin beauty, protection, and hydration effects. [Prior art and problems to be solved by the invention] Conventionally, transparent soaps have been made by oxidizing or neutralizing mixed fats and oils such as beef tallow and coconut oil, or mixed fatty acids such as beef fatty acids and coconut oil fatty acids with an aqueous solution of caustic soda. The obtained soap dough was dissolved in lower alcohol and water, and then as a clarifying agent,
Transparent soap dough prepared by adding sugar, glycerin, polyethylene glycol, etc. and heating it to make it uniformly transparent is poured into a designated mold, allowed to cool and solidify, and then taken out.
After cutting, chamfering, and drying, the product is obtained by repeating the manufacturing process of hot water soaking, O-shaping, polishing, drying, etc. However, it takes a long time to manufacture, and the devitrification or
When used, some may cause a feeling of tightness or irritation to the skin. It has disadvantages such as: The purpose of the present invention is to provide a transparent soap composition that has increased transparency, can shorten the manufacturing period, can prevent devitrification due to oral administration, and can provide a good moist feeling and shine to the skin. There is.

[Means for solving yA problem]

The present invention is based on the following general formula (1) or (2)
Ol1 ... (2) Contains O, 1 to 10.0% by weight of an amphoteric phosphate ester surfactant represented by (in the formula, R1 represents a linear alkyl group having 10 to 18 carbon atoms) This is a transparent soap composition characterized by: The amphoteric phosphate ester surfactant represented by general 2 (1) or (2) used in the present invention is, for example, 2-[
Dimethyl (2-hydroxydodecyl) ammonio] ethyl phosphate, 2-[dimethyl (2-hydroxytetradecyl) ammonio] ethyl phosphate-1.2- (dimethyl (2-hydroxyhexadecyl) ammonio) ethyl phosphate, 2- Dimethyl(2-hydroxyoctadecyl)ammonio]ethyl phosphate, 2[dimethyl(2-hydroxyeicosyl)ammonio]ethyl phosphate, 2-(dimethyl(3-decyloxy2)
-Hydroxypropyl)ammonio]ethyl phosphate, 2-[dimethyl(3dodecyloxy-2-hydroxypropyl)ammonio]ethyl phosphate, 2-[dimethyl(2-hydroxy-3-tetradecyQxippyl)ammonio] Ethyl phosphate, 2-[dimethyl(3-hexadecyloxy-2-hydroxybrobyl)ammonio]ethyl phosphate, 2[dimethyl(2-hydroxy-3-octadecyloxybutyl)ammonio]ethyl phosphate, and the like. Its blending amount is 0
．． 1-1 0. % O. If it is less than 1% by weight, there is no noticeable effect on transparency etc.
0. If it exceeds 0% by weight, transparency tends to decrease, so it should be 0.1 to 10% by weight based on the total amount of transparent soap.
0% by weight is suitable, preferably 0.5-3.0% by weight. The transparent soap glue used in the present invention is beef tallow, coconut oil,
These include animal and vegetable citron fats such as palm extract, palm kernel oil, olive oil, and castor oil, or their fatty acids, or products obtained by adding and dissolving polyhydric alcohols, sand VJI, etc. into the reaction products of simple fatty acids and aqueous alkaline solutions. The soap composition of the present invention may further contain other active ingredients within the scope of achieving the object of the present invention. In other words, moisturizing agents and superfatting agents used in general soaps. Foaming agents, antioxidants, fragrances, dyes. p I
1 regulator, sequestering agent, bactericide, anionic surfactant (linear alpha olefin sulfonate having 12 to 28 carbon atoms), amphoteric surfactant (imidazoline type, betaine type, substituted amino acid type) higher fatty acid Alkanol alcohol (higher fatty acid monoethanolamide, higher fatty acid diethanolamide, etc.) and other oily substances (lanolin, liquid paraffin, solid paraffin, etc.) can be combined.

In the present invention, it is not necessarily necessary to add the clarifying agents used in transparent soaps, but in order to obtain better transparency, it is preferable to include these clarifying agents.

As described above, polysaccharides such as sugar, glycerin, propylene glycol, polyols, alcohols, etc. are known as the clarifying agent, and one or more of these may be selected as appropriate. Good too.

The method for manufacturing the transparent soap composition of the present invention involves mixing transparent soap glue with an amphoteric phosphate ester surfactant and optionally the above-mentioned optional ingredients while heating, pouring into a frame, and cooling. This is a normal frame kneading manufacturing method in which the material is solidified, cut, dried, and then molded.

〔Example〕

Next, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples.

The tests described in this example are as follows. (1) i! Clarity Evaluation Test The method for measuring transparency is based on the type reading method described in Japanese Patent Publication No. 48-42935. In other words, it is a method of reading the minimum number of points of a standard printed type sample of 5 to 42 points through a product (sample) with a PI of 30 mm, and the smaller the number of points (1 point), the smaller the number of points (4W a) indicates that the brightness is good. ．． (
2) Storage stability test The samples were left unpackaged in a constant temperature room at a temperature of 45°C, and the state of failure (number of units) was observed (judged with the naked eye). (3) Practical wiping test 20 women (panelists) used the product when washing their faces, judged the irritation to the skin and the quality of use (moist feeling), answered a questionnaire, and judged the evaluation as follows. ．． Evaluation criteria Evaluation symbol: If 18 or more people answered that it was good... ◎ means 14 to l
In the case of 7 people... ○ If there are 8 to 13 people... △ If there are 7 or less people... O weight%) 4 0. 0% by weight and 20% by weight of ethanol are mixed and heated to 50°C to 70°C in a saponification pot, and separately added 6.0% of caustic soda. A caustic soda aqueous solution in which 1% by weight was dissolved in 15.9% by weight of water was added dropwise little by little and heated to 70"C~
It was saponified by keeping it at 75°C. After saponification, add sand $1 1 2. While keeping warm at 70°C. Add 0% by weight,
Further, 6.0% by weight of glycerin was added and mixed and dissolved to obtain a transparent soap glue.

97.0% by weight of this transparent soap glue and 2-[dimethyl(2-
Hydroxydodecyl) ammonio]ethyl phosphate 3. 0 ffl 1% was mixed, poured into a frame, cooled and solidified, cut, dried, and molded using a conventional frame kneading method to obtain a soap composition of the present invention.

Comparative Example 1 Next, for comparison, 2-[dimethyl(2-hydroxydodecyl)ammonio]ethyl phosphate was not blended, and transparent soap glue 100. A soap Hit soap of Comparative Example 1 was obtained in the same manner as in Example 1 except that 0% by weight was used. Table 1 shows the results of the various tests conducted on these soap compositions as described above. Table 1 As is clear from Table 1, the soap composition of the present invention (Example 1) becomes transparent quickly, has high transparency after 50 days, and has a high transparency after 50 days. The number of days until eyebrows appear) was also excellent at 54 mouths, and it was also superior to the comparative product (Comparative Example 1) in practical tests (irritancy, feeling of use). Examples 2 to 4 and Comparative Examples 2 to 3 Examples 2 to 4 and Comparative Examples 2 to 3 were carried out in the same manner as Example 1.
Each soap composition was obtained.

As is clear from the test results in Table 2, the transparent soaps of the present invention shown in Examples 2 to 4 became transparent quickly and
The transparency after 0 sip is excellent, the stability is also good, and the irritation and usability are also excellent, whereas the comparison with 0.1% by weight of amphoteric phosphate ester surfactant Example 2 and Comparative Example 3 in which the amphoteric phosphate ester surfactant exceeded 10% by weight had poor transparency and time to become transparent, and poor storage stability. Example 5 and Comparative Examples 4 to 6 The soap compositions of Example 5 and Comparative Examples 4 to 6 were obtained in the same manner as in Example 1. As is clear from Table 3, the transparent soap composition of the present invention shown in Example 5 was
It becomes transparent quickly and has excellent transparency after 50 sips.
Although it has good storage stability and excellent irritation and usability, it does not contain the amphoteric phosphate ester surfactant, which is an essential component of the present invention, and uses glycerin as another clarifying agent. Comparative Example 4 blended and Comparative Example 5 blended with polyethylene glycol 600 (average molecular 1600)
The soap compositions of Comparative Example 6 containing propylene glycol and propylene glycol were inferior in transparency, storage stability, irritation, and feeling of use, and were not as good as the transparent soap compositions of the present invention. This shows that the effect of the amphoteric phosphate ester surfactant is remarkable.

Example 6 Compounded fats and oils (26.0% by weight of beef tallow, 2.0% by weight of castor oil)
, 40.0% by weight of palm kernel oil (12.0% by weight) and 18.0% by weight of ethanol were mixed and heated in a saponification pot at 50°C to 70°C, and separately added 6.0% by weight of caustic soda. 1% by weight
Add caustic soda water diluted with 17.9% by weight of water little by little, and saponify by keeping at 70°C to 75°C. After finishing, add sugar 12.0 while keeping it warm at around 70℃.
% by weight and further added 6.0% glycerin and mixed and melted to obtain a transparent soap glue. This transparent soap glue 94.4
% by weight, 2-[dimethyl(2-hydroxyoctadecyl)ammonio]ethylphosphate-1-5. 0% by weight
, fragrance 0.5% by weight, edetate tetrasodium lithium tetrahydrate 0
．． A soap of the present invention was obtained in the same manner as in Example 1 by adding 1% by weight. Example 7 Mixed fats and oils: 20.0% by weight of beef oil, 4.0% by weight of palm oil
, coconut oil 8.0% by weight, palm kernel oil 8.0% by weight) 40
．． 0% by weight and 8.0% by weight of ethanol in a saponification pot.
Mix and heat at 0°C to 70'C, add a separate caustic soda aqueous solution prepared by dissolving 6.1% by weight of caustic soda in 17.9% by weight of water little by little, and heat to 70°C to 75°C.
Saponify by keeping at °C. After finishing, 12.0% by weight of sugar was added and 6.0% by weight of glycerin was added and mixed and dissolved while keeping the temperature at around 70°C to obtain a transparent soap glue. 92.3% by weight of this transparent soap glue, 2-[dimethyl[2-hydroxydi-3-octadecyl]ammonio]ethyl phosphate5. 0% by weight, sorbitol 2.0% by weight, coconut oil alkyl N-carboxyedyl N
- 0.5% by weight of sodium hydroxyethylimidazolium betaine, 0.1% by weight of dye. Fragrance 0. A soap composition of the present invention was obtained in the same manner as in Example 1 by blending 1% by weight of the fats and oils blended on the day of the example (20.0% by weight of beef oil, 4.0% by weight of olive oil, 16.0% by weight of Yasushiura). %)40. Add 8.0% by weight of ethanol to OgL amount% in a saponification pot at 50°C to 70°C.
Mix and heat at , and add 6. caustic soda separately to this. 1% by weight of water 7. An aqueous solution of caustic soda dissolved in a concentration of 9 m% was added dropwise little by little, and the mixture was maintained at 70'C to 75°C for saponification. After finishing, keep it warm at around 70℃ and enjoy sand tJ! 1 2.0% by weight and further glycerin 6.
0% by weight was added and mixed and dissolved to obtain a transparent soap glue. This transparent soap Il! ! 9 3. 8% by weight, 2-[dimethyl(2-hydroxyeicodecyl)ammonio]ethylphosphate} 5. 0% by weight, N-mixed fatty acid-sodium glutamate 0.5% by weight. 3,4 4-tricloluvanilide 0.1% by weight, fragrance j'+ 0. A soap LIl of the present invention was obtained in the same manner as in Example 1 by blending 5% by weight of tetrasodium edetate and 0.1% of tetrasodium edetate tetrahydrate.

Example 9 Blended ura fat (28.0% by weight of beef oil, 12.0% by weight of coconut oil)
) 40.0% by weight and 18.0% by weight of ethanol were mixed and heated at 50°C to 70°C in a saponification pot, and to this was added 6.1% by weight of caustic soda and 17.9% by weight of water. Add aqueous caustic soda solution dissolved in water little by little, and heat to 70°C
Saponify by keeping at 5°C. After finishing, 12.0% by weight of sugar was added while keeping the temperature at around 70°C, and 6.0% of glycerin was added. 0% by weight was added and mixed and dissolved to obtain a transparent soap glue. This transparent soap glue 9 4. 0 9%, 2-[dimethyl(3-dodecyloxydi-2-hydroxybucutyl)ammonio]ethylphosph. - } 5. 0% by weight,
Dodecylic acid 0.1% by weight, dodecylic acid diethanola [
0.1% by weight, 1.3-butylene glycol O. 1% by weight, 0.5% by weight of fragrance! %, dye 0.01% by weight, edetate tetrasodium tetrahydrate 0. A soap composition of the present invention was obtained in the same manner as in Example 1, except that 1% of the weight was added. (Characteristics) Examples 6 to 9 all gave good results in each of the above tests, and the transparency that is the objective of the present invention was good, the manufacturing period was shortened, devitrification due to oral administration was avoided, In addition, a transparent soap with excellent skin beautification, protection and hydration effects was obtained. [Effects of the invention] Below. As described in h, the transparent i fm group proboscis of the present invention is
It is possible to provide a useful transparent soap composition that is excellent in that it becomes transparent quickly, has good transparency, takes a long time to devitrify, and gives a moist feeling to the skin.

Claims (1)

[Claims] The following general formula (1) or (2) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(1) ▲There are mathematical formulas, chemical formulas, tables, etc.▼...(2) ( A transparent soap containing 0.1 to 10.0% by weight of an amphoteric phosphate ester surfactant represented by the formula (R_1 represents a linear alkyl group having 10 to 18 carbon atoms) Composition.