Transparent solid soap

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

Inactive Publication Date: 2010-03-24
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 invention provides a transparent solid soap which contains (A) C12-18 linear saturated fatty acids and/or salts thereof and contains substantially neither any branched fatty acid salt nor any unsaturated fatty acid salt. The transparent solid soap further contains (B) one or more members selected among nonionic surfactants, amphoteric surfactants, polyhydric alcohols which are liquid at ordinary temperature, and saccharides, (C) an inorganic salt, and (D) water. The content of the fatty acids constituting the ingredient (A) is 20-40 mass% based on the whole solid soap, and the proportion of the fatty acids constituting the ingredient (A) to the ingredient (B) is from 30/70 to 45/55 by mass. The content of the ingredient (C) is 0.5-5 mass%, and the ingredient (D) constitutes the remainder. In the ingredient (A), the proportion of the C12 fatty acid to the sum of the C16 fatty acid and the C18 fatty acid is from 30/70 to 60/40 by mass, and the proportion of the C12 fatty acid to theC14 fatty acid is from 20/80 to 80/20 by mass. The total amount of the C12 fatty acid and the C14 fatty acid is 14-22 mass% based on the whole solid soap. This transparent solid soap is highly transparent and lathers well especially in hard water. It has the moderate hardness required of solid soaps, is free from problems concerning deterioration in odor with time and sogginess. The solid soap has 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 Applications(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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