JPS5940880B2 - Transparent soap manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the processing of animal and vegetable fats and oils such as beef tallow, coconut oil, palm oil, palm kernel oil, olive oil, and castor oil, or their decomposed fatty acids, distilled fatty acids, and synthetic fatty acids in the presence of lower alcohols. A reaction product with an alkaline aqueous solution such as caustic soda, caustic potash, or alkatoluamine, that is, a soap stock solution obtained by adding and dissolving glycols, polyhydric alcohols, sugars, etc. to soap, is poured into a frame, cooled, solidified, cut, and dried. This invention relates to a manufacturing method in which sulfur, which is insoluble in most solvents, is transparently added to ordinary frame-kneaded transparent soap obtained by shaping and packaging.

Conventional sulfur-containing soaps have mainly been machine-made soaps, which are manufactured by simply kneading sulfur into a soap base, since sulfur does not dissolve in most things.

These types of sulfur-containing soaps simply add sulfur physically, so if the particles or crystals are too large, they may feel stuffy, and their medicinal properties may be low compared to the amount added. It was hot. On the other hand, sulfur-added frame-line transparent soaps have never existed, and the reason for this is that even when sulfur is added, it settles due to its insolubility, making it impossible to obtain a uniform product.

The pharmacological effects of sulfur are said to be more pronounced as the particles or crystals are finer, and it is said to be more effective when combined as alkali sulfide, hydrogen sulfide, or pentathionic acid.

The present inventor has focused on these points, and as a result of intensive research, has completed a method of blending sulfur into transparent soap, which has been impossible until now, and has created a method that is valuable not only in terms of appearance but also in terms of effectiveness. I came to invent it. That is, when saponifying or neutralizing blended fats and oils, sulfur is dissolved in an alkaline aqueous solution such as caustic soda or caustic potash, and then glycols and polyhydric alcohols are added using a conventional method. After scenting and coloring, the soap is poured into a frame, cooled, cut, dried, and shaped to obtain sulfur-added transparent soap. The amount of sulfur added in machine soaps is usually 15%.

In comparison, in this method, by adding about 0.1 to 1% of Yoshi-Re, it is possible to obtain the same medicinal effect and feeling of use as the machine beam method in which 1 to 5% of Yoshi-Re is added. Furthermore, the soap obtained according to the present invention has good transparency, foams well, and has no disadvantages such as stickiness or sopping, and is of excellent quality. Furthermore, the soap according to the present invention is colored brown by the sulfur, giving it an elegant color tone. The present invention will be explained below with reference to Examples.

Example 1 50kg of ethanol was mixed with 100k9 of blended fat (65k9 of beef tallow, 301<g of bean oil, and 5k9 of castor oil) heated to 50 to 70°C in a reaction pot, and separately added 15.88kg of caustic soda and sulfur. 1k9, ion exchange water 5
0k9 was mixed and heated to dissolve the alkaline aqueous solution little by little.
The saponification reaction is completed while maintaining the temperature at 70 to 80°C.

After the reaction is completed, sugar 30k9 is added and dissolved while maintaining the temperature at about 70°C to obtain transparent soap glue. The free alkali of the transparent soap glue thus obtained was adjusted to obtain a transparent soap stock solution. Next, the transparent soap stock solution was poured into a predetermined frame, cooled and solidified, cut, dried, shaped and packaged to obtain transparent soap. The sulfur-added transparent soap thus obtained contained about 0.5% of sulfur, had good transparency, foamed well, was uniform, and did not melt and crumble.

On the other hand, transparent soap produced by adding sulfur directly after the saponification reaction with the same blending ratio as in this example and using the same method thereafter had sulfur or sedimentation and agglomeration, resulting in an opaque and non-uniform appearance. It was of little value.

Example 2 Compounded oil and fat (lauric acid 20k9, myristic acid 35k9
Add 45k9 of ethanol to 100kg of mixed fatty acids (20k9 of palmitic acid, 15k9 of stearic acid, 10kg of oleic acid), heat and mix in a reaction pot at 50-70kC, and add 13k9 of caustic soda and 6 of caustic potash separately.

9k9, sulfur 0.75k9, and ion exchange water 52k9 are mixed and heated to dissolve an alkaline aqueous solution little by little.
The solution is added over a period of minutes, and the neutralization reaction is completed while maintaining the temperature at 70 to 80°C.

After the reaction is completed, 32 kg of sugar, 13 kg of glycerin, and 35 kg of sorbitol are added and dissolved while maintaining the temperature at about 70°C to obtain transparent soap glue. Next, after adjusting the free alkali of the transparent soap glue, it was poured into a predetermined frame, cooled and solidified, cut, dried, shaped, and packaged to obtain a transparent soap.

Claims (1)

[Claims] 1. In the presence of a lower alcohol, one or more oils and fats selected from the group of fats and oils consisting of beef tallow, coconut oil, palm oil, palm kernel oil, olive oil, castor oil, their decomposed fatty acids, distilled fatty acids, or synthetic fatty acids. of,
After saponification or neutralization with one or more alkali aqueous solutions selected from the alkali aqueous solution group consisting of a caustic soda aqueous solution, a caustic potash aqueous solution and an alkali aqueous solution, from the group consisting of glycols, polyhydric alcohols or saccharides In the method for producing frame-kneaded transparent soap in which a transparent soap stock solution is obtained by adding and dissolving one or more selected types, and the stock solution is poured into a frame and cooled and solidified, the amount of transparent soap added to the alkaline aqueous solution is Te 0.1
A method for producing a sulfur-containing frame-kneaded transparent soap, which comprises blending up to 1% by weight of sulfur.