JPH028000B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a soap-based detergent composition with improved foaming properties, and particularly to a cosmetic soap having extremely excellent foaming properties. [Prior Art] Various methods have been used to improve the foaming properties of body soap cleansers. For example, attempts have been made to make composite cleaning agents by blending higher fatty acids, higher alcohols, etc., or by blending anionic synthetic surfactants to improve the firmness. However, when higher fatty acids are added, a certain degree of effect can be obtained, but the foaming is still insufficient, and when higher alcohols are added, the desired effect cannot be obtained even with a small amount of addition, and when a large amount is added, the desired effect cannot be obtained. Although the quality of foam is improved when blended, there is a drawback that foaming is significantly inhibited. In addition, in the case of combination detergents containing anionic synthetic surfactants, the desired effect may not be obtained if a small amount is added, and if a large amount is added, bar soaps may melt and crack. Problems with physical properties such as these arise, and liquid and paste forms have drawbacks such as phase separation. In addition, in both cases, it was difficult to rinse and left a slimy feeling. [Problems to be Solved by the Invention] As mentioned above, with the conventional additives used to improve the foaming of soap-based detergents for body washing, the desired effect cannot be obtained in small amounts; If added in a large amount, foaming may be significantly inhibited, and if it is in solid form, it may cause deterioration of physical properties such as melting and cracking, and if it is in liquid or paste form, it may cause phase separation. Ta. [Means for Solving the Problems] As a result of extensive research by the present inventors in order to solve the above-mentioned problems, we have developed a superfatting agent, preferably a higher fatty acid having 8 to 22 carbon atoms, or a mixture thereof. 0.5 to 20% by weight, preferably 1.0 to 20% by weight of the soap
10% by weight, and insoluble metal salts of surfactants, preferably metal salts of metals such as alkaline earth metal salts, zinc salts, aluminum salts or iron salts of higher fatty acids or monoalkyl phosphoric acids, especially those having a carbon number of 8 ~22 higher fatty acids or monoalkyl phosphate insoluble metal salts such as magnesium, calcium, zinc, aluminum, iron, etc. for soap 0.05 ~ 10
It has been found that by blending in an amount of 0.1% to 2% by weight, a body soap cleansing agent having excellent foaming and lather quality can be obtained. In the above soap-based cleaning composition of the present invention,
If the amount of superfatting agent used is too small, good foam quality such as the desired lathering and creaminess of the foam cannot be obtained, and if it is too large, it may
The soap is too soft to be molded or shaped well, and also inhibits lathering. In addition, in the case of pasty or liquid soaps, phase separation occurs and foaming is inhibited as in the case of solid soaps. Further, if the amount of the insoluble metal salt of the surfactant is too small, the desired foaming effect cannot be obtained, and if it is too large, foaming is inhibited. In addition to the above-mentioned higher fatty acids having 8 to 22 carbon atoms, superfatting agents used in the present invention include lanolin and derivatives, cold creams, hydrocarbons,
Various esters, lecithin and derivatives, silicones, long chain alcohols (8 to 22 carbon atoms), etc. can be used. As shown in the examples below, the soap-based cleaning composition of the present invention can be used not only as a solid soap but also as a liquid or paste product. Further, as a method for producing these soap-based cleaning compositions, conventionally used known production methods can be employed. In addition to the above-mentioned main ingredients, the composition may contain pigments, fragrances, and other well-known ingredients conventionally incorporated in soap-based detergent compositions. [Examples] Next, the present invention will be described with reference to Examples, but the present invention is not limited to these Examples. Example 1 (Machine-mixed soap) Various mechanically-mixed soaps were prepared by kneading each component having the composition shown in Table 1 and performing extrusion molding.
The numbers in Table 1 indicate parts by weight. The foaming amount and foam density of the obtained cosmetic soap were measured by mechanical methods. Additionally, an expert panel consisting of 10 people conducted a face wash sensory test to evaluate the amount of lather and the creaminess of the lather. These results are shown in Table 2. Mechanical measurements of foaming amount and foam density were carried out as follows. That is, prepare a 5% aqueous solution and add
Inject 100 g and 1 g of artificial sebum into a graduated cylinder. Next, a stirring blade was placed in the solution, and the volume of foam generated one minute after the start of stirring was measured, and at the same time, the foam density was calculated using the following calculation formula (1). Calculation formula (1) Foam density (g/ml) = 100g - remaining liquid amount (g) / foaming amount (ml) The rotation speed of the stirring blade is 1000 rpm, and 5
It was flipped every second. [Evaluation criteria for facial cleansing sensory test] The evaluation is shown as the average value of the sensory evaluation for each item based on the following criteria. 5: Very good. 4: Excellent. 3: Normal. 2: Inferior. 1: Very poor.

【table】

【table】

【table】

【table】

[Table] As is clear from the performance evaluation in Table 2, the products of the present invention in which fatty acid soap is blended with a superfatting agent and a metal soap or an insoluble metal salt of monoalkyl phosphoric acid, Compared to a comparative product containing soap or monoalkyl phosphate metal salt alone or a comparative product containing fatty acid soap alone, the mechanical foaming amount was significantly higher, the foam density was higher, and the foam was creamier and had a better quality. It showed foam performance. In addition, in the facial cleansing sensory test, the product of the present invention was superior to the comparative product in terms of foaming amount and creaminess of the foam. Example 2 (Frame-kneaded soap) Each component having the composition shown in Table 3 was uniformly dissolved at 80°C and poured into a wooden frame. After cooling and solidifying, it was cut and dried to prepare a framed cosmetic soap. The framed soap prepared in this way (product of the present invention), the soap from which the superfatting agent was removed (comparative product 1), and the soap from which the metal soap or monoalkyl phosphate metal salt was removed (comparative product 2) ) and an additive-free product (comparative product 3) excluding both, a facial cleansing sensory test was conducted by a panel of 10 experts, and the foaming amount and creaminess of the foam were evaluated. The results are shown in Table 4.

【table】

〔Evaluation criteria〕

The evaluation is shown as the average value of the sensory evaluation for each item based on the following criteria. 5: Very good. 4: Excellent. 3: Normal. 2: Inferior. 1: Very poor.

〔Effect of the invention〕

According to the present invention, a soap-based detergent having excellent foaming and foaming properties can be provided without problems in physical properties, and is very useful industrially.

Claims (1)

[Scope of Claims] 1. 0.5 to 20% by weight of soap consisting of one or more types of alkali metal salts, organic amine salts, or ammonium salts of higher fatty acids having 8 to 22 carbon atoms or mixtures thereof. Superfat agent and 0.05
A soap-based cleaning composition comprising ~10% by weight of an insoluble metal salt of a surfactant. 2. The soap-based cleaning composition according to claim 1, wherein the superfatting agent is a higher fatty acid having 8 to 22 carbon atoms or a mixture thereof. 3 The insoluble metal salt of the surfactant is a higher fatty acid or an alkaline earth metal salt of monoalkyl phosphoric acid,
The soap-based detergent composition according to claim 1 or 2, which is a metal salt selected from zinc salts, aluminum salts, and iron salts. 4. The soap-based detergent composition according to claim 3, wherein the higher fatty acid or monoalkyl phosphoric acid is a higher fatty acid or monoalkyl phosphoric acid having 8 to 22 carbon atoms. 5. The soap-based cleaning composition according to claim 3 or 4, wherein the alkaline earth metal salt is a magnesium salt, a calcium salt, or a barium salt.