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Transparent solid soap

A technology of transparent solid, solid soap, applied in the direction of transparent solid soap/detergent, soap with clearly defined chain length, shaped soap, etc., to achieve the effect of high productivity, high transparency and good foaming

Inactive Publication Date: 2013-06-05
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention addresses these problems and aims to provide a transparent solid having high transparency, good foaming properties, especially good foaming properties against hard water, moderate hardness as a solid soap, and no problem of deterioration of odor over time Soap, and a method for producing the transparent solid soap according to a desired shape with high productivity

Method used

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  • Transparent solid soap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The fatty acids listed in Table 1, polyhydric alcohols and surfactants which are liquid at normal temperature were mixed and melted at 80°C. A 48% aqueous sodium hydroxide solution diluted with 5% by mass of water was slowly added dropwise thereto for neutralization. After becoming transparent and homogeneous, a solution obtained by mixing sodium chloride, sugar, and purified water separately and heating to 80°C was added to the neutralized solution, and mixed at 80°C for 15 minutes to obtain a soap composition in a molten state .

[0053] Using the obtained soap composition, it evaluated by the following method. The results are shown in Table 1.

[0054] (Evaluation method)

[0055] 1. Transparency

[0056] 5 mL of the soap composition in the molten state was poured into a Balance Dish (35×35×10 mm) at 80° C., left to cool, and then solidified solid soap was taken out. The time required for cooling and solidification at room temperature (25°C) is about 20 minutes. ...

Embodiment 2～5 and comparative example 1～9

[0072] Except having used the composition shown in Table 1, it carried out similarly to Example 1, and obtained the soap composition. Table 1 shows the results of evaluation by the same method as in Example 1.

[0073] Table 1

[0074]

Embodiment 6～15

[0076] In the same manner as in Example 1, a soap composition having the following composition was obtained. The same good evaluation results as in Example 1 were shown.

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Abstract

The present invention relates to a transparent bar soap which includes (A) saturated straight-chain fatty acids having 12 to 18 carbon atoms and / or salts thereof and is substantially free from a branched fatty acid salt and an unsaturated fatty acid salt, the transparent bar soap further including (B) one or more substances selected from the group consisting of nonionic surfactants, amphoteric surfactants, polyhydric alcohols which are kept in a liquid state at a room temperature, and saccharides, (C) an inorganic salt, and (D) water, wherein the fatty acids constituting the component (A) are present in an amount of from 20 to 40% by weight on the basis of the entire amount of the bar soap, the components (A) and (B) are present in such an amount that a weight ratio of the fatty acids constituting the component (A) to the component (B) is from 30:70 to 45:55, the component (C) is present in an amount of from 0.5 to 5% by weight on the basis of the entire amount of the bar soap, and the component (D) is present in a remainder amount of the bar soap, wherein C 12 , C 14 , C 16 and C 18 fatty acids constituting the component (A) are present in such an amount that a weight ratio of the C 12 fatty acid to a sum of the C 16 fatty acid and the C 18 fatty acid is in the range of from 30:70 to 60:40, a weight ratio of the C 12 fatty acid to the C 14 fatty acid is in the range of from 20:80 to 80:20, and a total amount of the C 12 fatty acid and the C 14 fatty acid is from 14 to 22% by weight on the basis of the entire amount of the bar soap. The transparent bar soap has a high transparency, a good foamability especially in hard water and a suitable hardness necessary for bar soaps, and is free from problems concerning deterioration of its smell over time and sogginess. The bar soap also has a high productivity and can be easily molded into a desired shape.

Description

technical field [0001] The present invention relates to transparent solid soap and its manufacturing method. Background technique [0002] It is known that in fatty acid soaps with sodium salts of higher fatty acids as the main ingredient, by adding a clearing agent such as glycerin, sorbitol, sucrose, etc., the crystallization of the soap is suppressed and the soap is finely crystallized, thereby producing a transparent soap with a transparent appearance. solid soap. Since the transparent solid soap contains a large amount of polyols or sugars as humectants, it has an excellent skin protection effect and a mild feeling of use, and is mainly used for face washing. [0003] For a long time, the transparent solid soap has been mixed with a transparent agent in fatty acid soap, heated and dissolved in a mixed solvent of lower alcohol such as ethanol and water, injected into the mold frame, and solidified by slowly volatilizing the solvent for dozens of days. Manufacture by fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D9/04A61K8/36A61Q19/10C11D9/10C11D9/22
CPCC11D17/0095C11D9/26C11D13/16C11D9/262C11D1/92C11D1/72C11D9/267C11D1/74C11D10/045C11D10/04C11D9/10C11D9/265C11D9/007
Inventor 细川久美子
Owner KAO CORP
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