JPH0450960B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to transparent soap. More specifically, the present invention relates to a transparent soap that is improved in usability, has significantly improved transparency, cracking and swelling, and foams well by incorporating a specific cationic polymer compound. [Prior Art] Transparent soap is made by adding lower alcohol to animal fat, vegetable oil, fat-decomposed fatty acid, etc., heating and dissolving it, and then saponifying or neutralizing it with an alkaline aqueous solution such as caustic soda, caustic potash, or triethanolamine. Then add sugar, sorbitol,
Sugars such as mannitol or glycerin, 1,
Transparent soap glue is manufactured by adding polyhydric alcohols such as 3-butylene glycol and propylene glycol, and the transparent soap is colored and scented, poured into a designated cooling frame, and cooled. After cooling and solidifying. It is manufactured by cutting, cutting, drying, shaping, etc. Such transparent soaps are transparent and have a beautiful appearance, and are moist and good after washing.
It is especially in demand as a face wash. [Problems to be Solved by the Invention] However, the transparent soap produced in this manner has the disadvantage that it tends to crack or swell during use, resulting in a marked deterioration in appearance. This tendency is particularly severe in systems containing large amounts of sugars and polyhydric alcohols. Since saccharides and polyhydric alcohols have a great effect on making the wash moisturized, it has been desired to improve the above-mentioned drawbacks, especially in systems containing large amounts. [Means for solving the problem] In view of the above circumstances, the present inventors conducted intensive research and found that the above problem could be solved by blending a specific cationic polymer compound into a transparent soap. Not only can this be solved, but it also has the effect of increasing the hardness of the transparent soap, making the cooling and cutting process easier, making the foam of the transparent soap richer and creamier, and improving its transparency. This discovery led to the completion of the present invention. That is, the present invention provides a transparent material containing 0.1 to 6% by weight of one or more poly(dimethyldiallylammonium chloride) type cationic polymer compounds represented by the following general formula () or (). It's a necessity. {In formulas () and (), R ₁ and R ₂ represent a hydrogen atom or a methyl group, and p is 150 to
Represents the number 6200. ) Hereinafter, the structure of the present invention will be explained in detail. The cationic polymer compound represented by the general formula () or () used in the present invention is a poly(dimethyldiallylammonium chloride) type cationic polymer compound. (Molecular weight 200,000 to 280,000, pure content approximately 40
%)and so on. The amount of the cationic polymer compound is 0.1 to 6% by weight based on the total amount of the finished transparent soap composition.
Preferably it is 0.5 to 5% by weight. If it is less than 0.1% by weight, the effect will be insufficient, and if it exceeds 6% by weight, the transparency of the transparent soap will deteriorate. The effect of the above cationic polymer compound is that the transparent soap contains a large amount of sugars and polyhydric alcohols (20-45
This effect is particularly noticeable when the compound is added (% by weight). Specific examples of sugars and polyhydric alcohols include polyglycerin such as glycerin, diglycerin, triglycerin, and tetraglycerin, propylene glycol, dipropylene glycol,
Polypropylene glycol such as tripropylene glycol, tetrapropylene glycol, 1,
These include butylene glycols such as 3-butylene glycol and 1,4-butylene glycol, sugar, sorbitol, maltitol, and maltotriose. [Effects of the Invention] The transparent soap containing the poly(dimethyldiallylammonium chloride) type cationic polymer compound of the present invention has the following effects. (1) Gives a smooth feeling to the skin, especially after washing. If you use it for shaving, it will have a high softening effect on your beard and will less likely clog your shaver. (2) It foams well and is creamy. (3) Since it does not swell or soften, it can be used up until the end. (4) In the manufacturing process, cooling and cutting processes become easier. (5) The transparency of transparent soap improves. Although the mechanism of these actions is not clear, it is thought that the film-forming ability of the cationic polymer compound has some influence. In addition to the above-mentioned essential ingredients, the transparent soap of the present invention may optionally contain other ingredients such as oil, other moisturizing agents,
Ingredients commonly added to transparent soaps, such as surfactants, preservatives, other water-soluble polymers, and drugs, can be added. [Examples] The present invention will be described in detail below with reference to Examples. The present invention is not limited to these. The blending amount is in weight%. The effectiveness was measured using the following test method. (1) Transparency and usability The following ratings were given based on sensory evaluation. Very good...◎ Good...○ Fair...△ Bad...× (2) Swelling degree A weighed transparent soap is attached to a wire and immersed in water at 20℃. After 2 hours, the sample was taken out, its weight was measured, and the degree of swelling was calculated using the following formula. Swelling degree = b - (ac) / a - c × 100 (where a = weight before immersion, b = weight after immersion, c = weight dissolved in water.) Swelling degree less than 19...◎( Very good) 19 or more and less than 21...○ (good) 21 or more and less than 24...△ (average) Swelling degree 24 or more...× (poor) (3) Foaming property CaCO ₃ Transparent soap using 70ppm artificial hard water 400 ml of a 1% solution of was prepared, stirred for 1 minute in a cylindrical cylinder with stirring at 25°C, and the amount of foam immediately after stirring was measured. Foam volume 1900ml or more...◎ (Very good) 1700ml or more and less than 1900ml ○ (Good) 1500ml or more and less than 1700ml △ (Normal) Foam volume less than 1500ml...× (Poor) (4) Freezing point Pour transparent glue into a 100ml beaker and gradually The freezing point was measured using a precision thermometer while cooling to . Example 1 56 kg of ethanol was added to a mixture of 62.5 kg of beef tallow, 32.5 kg of coconut oil, and 5.0 kg of castor oil, and the mixture was heated in a pot.
Warm to 70℃. Separately, an alkaline aqueous solution prepared by dissolving 15.6 kg of caustic soda in 30 kg of water is added to this while maintaining the temperature at 70°C to saponify it. After saponification, 26 kg of sugar, 15 kg of glycerin, and 10 kg of Marquat 100 were added and dissolved to obtain a transparent soap glue. The transparent soap glue was colored and scented, poured into a frame, cooled and solidified, cut, dried and shaped to obtain transparent soap. Comparative Example 1 Comparative Example 1 was obtained in the same manner as in Example 1, except that Marquat 100 was removed from Example 1 (adjusted with glycerin). Example 2 Example 2 was obtained in the same manner as in Example 1 except that the amount of ethanol was 53Kg, the sugar was 33Kg, Marquat 100 was 32Kg, and 36Kg of sorbitol was used instead of 15Kg of glycerin. . Comparative Example 2 Comparative Example 1 was obtained in the same manner as Example 1, except that Marquat 100 was removed from Example 2 (adjusted with sorbitol).

[Table] Example 3 1.7 kg of castor oil and a mixed fatty acid consisting of 6.3 kg of lauric acid, 11.3 kg of myristic acid, 5.3 kg of palmitic acid, and 2.0 kg of isostearic acid were mixed with 15 kg of ethanol.
Heat and mix in a pot with Kg and keep at 70℃. Add 4.1kg of caseida, 2.0kg of caustic potash, and 7.5kg of water to this item.
An aqueous alkaline solution dissolved in Kg was added to saponify the mixture. After saponification, add 10.7 kg of sugar and 16.3 kg of sorbitol while maintaining the temperature at 70℃ to make a transparent glue. After free alkali adjustment, Marquardt
Example 3 was obtained in the same manner as in Example 1 except that 2.0 kg of 100 was added. Comparative Example 3 Except for excluding Marquat 100 from Example 3,
Comparative Example 3 was obtained in the same manner as Example 3. Using Example 3 and Comparative Example 3, a shaving test was conducted by a panel of 10 men. The results were evaluated by sensory evaluation and are shown in Table 3 using the same criteria as transparency and usability.

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Claims (1)

[Claims] 1. Poly(dimethyldiallylammonium chloride) represented by the following general formula () or ()
One or more types of cationic polymer compounds
A transparent soap characterized by containing 0.1 to 6% by weight. {In formulas () and (), R ₁ and R ₂ represent a hydrogen atom or a methyl group, and p is 150 to
Represents the number 6200. )