JPH0475279B2 - - Google Patents

Description

[Detailed description of the invention]

TECHNICAL FIELD The present invention relates to a creamy detergent. More specifically, the present invention relates to a cream-like detergent that has the functions of both a cleansing cream and a cleansing foam. Cleaning products for the purpose of washing the face include soap types such as soap, transparent soap and cleansing foam, and cream types such as cleansing creams. The method of using these cleansers is that the former soap type is used to lather the face with water and then rinsed off, while the latter cream type is used by spreading the cream directly onto the face without using water and applying it to the skin. It is mixed with dirt and then wiped off with tissue paper, etc. A rough evaluation of the usability of these detergents shows that soap-type products foam during use and provide a relatively refreshing feeling after use, but they also have the disadvantage of causing dryness and dryness when washed too much. In addition, the cleaning power is insufficient to completely remove oily cosmetics such as oily foundations. On the other hand, the cream type can remove makeup even in the absence of water, spreads easily when applied directly to the face, and mixes the oil in the cream with dirt on the skin before wiping it off with tissue paper, etc. It is suitable for removing oil-based foundations, but it feels greasy and sticky after wiping it off. Soap types with the above advantages and disadvantages,
Although it is a cream type, in reality, general consumers
In order to use either type alone or to cover up the shortcomings of each other, a so-called double face wash is performed in which the cream type is first used to remove oil stains, and then the soap type is used to wash the face.
However, double face washing, as the term suggests, has the drawback of being troublesome and requiring double effort. In view of the above circumstances, the present inventors thought that it would be possible to create a facial cleanser that has the advantages and functions of both soap type and cream type, and began research on the present invention. That is, the object of the present invention is to produce a cleaning agent that can be used in the following three ways while being a single cleaning agent, and that eliminates the drawbacks associated with conventional soap and cream types. (1) It can be used like a soap type by lathering it with water in the palm of your hand and washing your face. At this time, it has excellent cleaning power against oil stains such as oil-based foundations, like a cream type.
What's more, it stays moist after washing and doesn't get dry. (2) It can be used like a cream type by spreading it on the skin, mixing it with dirt, and then wiping it off with tissue paper. It's not sticky after wiping it off. (3) Depending on your preference, you can also use it like a cream type by spreading it on your skin, mixing it with dirt, then adding water to your skin, lathering it up, and rinsing it off. As a result of intensive research from the above viewpoint, the present inventors have found that if fatty acid soap, moisturizer, and oil are blended in a specific amount range, a cream-like cleanser with good stability and satisfying the above three objectives can be obtained. Based on this knowledge, the present invention was completed. That is, the present invention provides potassium salts of fatty acids 6-
40% by weight, moisturizer 6-50% by weight, oil 6-60%
% by weight, and the proportion of liquid oil in the total oil content is 50% by weight or more. (below,
% by weight is simply referred to as %). The configuration of the present invention will be explained in detail below. The fatty acid constituting the fatty acid potassium salt used in the present invention is a fatty acid having 8 to 22 carbon atoms, and
It may be straight chain, branched, saturated, or unsaturated. Specific examples include lauric acid, myristic acid,
Palmitic acid, stearic acid, behenic acid, palmitoleic acid, oleic acid, isomyristic acid, isopalmitic acid, isostearic acid, and the like can be mentioned. One or a combination of two or more of these may be used. Among the above fatty acids, lauric acid, myristic acid, and oleic acid have particularly high foaming properties. Further, since fatty acids having 8 to 12 carbon atoms such as lauric acid are not preferred in terms of skin irritation when added in large amounts, the amount added is preferably within a range that does not exceed 50% of the total amount of fatty acids. Potassium hydroxide is preferable as the alkali for neutralizing fatty acids, considering the product quality characteristics such as cream hardness, spreadability, and foaming properties. Note that the fatty acid and the alkali may be neutralized in advance and then added to the product, or they may be added separately to the oil phase and the aqueous phase and neutralized during the emulsification reaction. Although either one may be in excess of the complete neutralization amount, an excess of alkali is not very preferable from the viewpoint of skin safety. The amount of potassium salt of fatty acid is 6.
~40%. If it is less than 6%, sufficient foaming properties cannot be obtained, and if it exceeds 40%, the cream becomes too hard, making it undesirable as a product. The humectant used in the present invention includes water-soluble polyhydric alcohols such as ethylene glycol, propylene glycol, butylene glycol, glycerin, sorbitol, and maltitol, their condensates, or ethylene oxide adducts and propylene oxide of the above polyhydric alcohols. They are adducts, etc., and one or more of these may be arbitrarily selected and used. Among the above humectants, especially glycerin, maltitol and sorbitol,
Organic conceptual diagram by Fujita et al. (Region of Chemistry Vol. 11 No. 10)
719-725 (1957), moisturizers with an inorganic/organic content of 4 or more are preferable in terms of product stability, and when using a combination of two or more of the above various humectants, these inorganic/organic properties should be 4 or more. More than 50% of the total moisturizer amount
% or more. This is because when these inorganic/organic moisturizers with grade 4 or higher are used, a composition consisting of 6-40% fatty acid soap, 6-50% humectant, and 6-60% oil forms a gel structure. it is conceivable that. The amount of humectant added is 6 to 50%. If it is less than 6%, the cream will be too hard and 50%
%, the cream becomes pasty-like and the product value in terms of appearance is impaired. The oil used in the present invention may be any oil used in cosmetics, but hydrocarbon oils such as liquid paraffin and squalane are preferred. In addition, it is preferable that the oil be liquid at room temperature, but semi-solid or solid oil at room temperature should account for 50% of the total oil content.
It may be blended within a range not exceeding %. Specific examples of oils include animal and vegetable oils and hydrocarbons such as beef tallow, squalane, olive oil, and rice bran oil, mineral oils such as liquid paraffin, petrolatum, and solid paraffin, isopropyl myristate, pentaerythritol tetra-2-ethylhexanoate, These include ester oils such as vitamin A palmitate and vitamin E acetate, and silicone oils such as methylphenyl silicone and dimethyl silicone. The blending amount of oil is in the range of 6 to 60%. If it is less than 6%, it will not have enough cleaning power for oil-based cosmetics, and if you wash it with water, your skin will feel dry.If it exceeds 60%, the cream will become too hard, and the oil will stain over time. The stability is not good, such as when it comes out. In addition to the above-mentioned components, the creamy cleansing agent according to the present invention may contain other cleansing agents, such as acylamino acids, as necessary, to the extent that the effects of the present invention are not impaired.
Nonionic, anionic, cationic, amphoteric surfactants, colorants, fragrances, preservatives, bactericidal agents, drugs, and the like may be added. When used alone, the creamy cleansing agent of the present invention does not have the drawbacks of cleansing creams and cleansing foams. In other words, you can apply the cream directly onto your face like a cleansing cream, mix it with dirt, and then wipe it off with tissue paper, etc., and it will not leave an oily feeling and will give you a moderate amount of moisture, so you can use it after cleansing. Unlike creams, there is no need to wipe off with lotion to remove oil from the face or wash your face again with cleansing foam. In addition, when you apply the product directly to your hands and lather it with water or hot water to wash your face, as with cleansing foam, your hair will feel moisturized without feeling dry or dry after washing.
Moreover, since oil-based foundations can be easily removed, unlike cleansing foams, there is no need to wash the product over and over again to remove oil-based foundations. Furthermore, it can be used by applying the cream on the face, mixing it with dirt, and then rinsing it off with water or hot water, eliminating the hassle of double washing with cleansing cream and cleansing foam. It can be said that it is a really useful cleaning agent for people. Next, the present invention will be explained in more detail with reference to Examples. The present invention is not limited thereby. The blending amount is in weight%. Example 1 Comparative Examples 1 and 2 Prescriptions were prepared using the compounding ratios shown in Table 1. Comparative Example 1 is a commercially available cleansing foam, and Comparative Example 2 is a commercially available cleansing cream formulation.

〔Production method〕

(1) Comparative Example 1 was heated and dissolved at 70°C, and a solution dissolved in Comparative Example 1 was also heated to 70°C and added thereto. Stir thoroughly to carry out the neutralization reaction. Separately, dissolve by heating at 70°C, and stir and mix into the mixture after the neutralization reaction is completed. After mixing, the mixture was cooled to room temperature to obtain a cleansing foam. (2) Comparative Example 2 was heated and dissolved at 70°C, and the solution heated and dissolved at 70°C was added to this with stirring, and then the emulsified particles were prepared using a homomixer.
After the homo treatment, the mixture was cooled to room temperature to obtain a cleansing cream. (3) Example 1 was heated and dissolved at 70°C, and the solution dissolved in Example 1 was also heated to 70°C and added. Stir thoroughly to carry out the neutralization reaction. Separately, dissolve by heating at 70°C, and stir and mix into the mixture after the neutralization reaction is completed. After mixing, the mixture was cooled to room temperature. Foaming properties of Comparative Examples 1 and 2 and Example 1 obtained in Table 1,
Comparative evaluations were made regarding cleansing properties and sensation after use. The results are shown in Table 2. The evaluation method is as follows. (1) Foaming property Evaluated by actual use sensory evaluation by 5 beauty expert panelists, and expressed as an average value. ◎...Extremely good foaming. ○...Good foaming. ○△…Normal foaming. △...Poor foaming. ×...Extremely poor foaming. At the same time, using a cylindrical cylinder with a stirrer,
Sample concentration 5% CaCO ₃ 100ppm artificial hard water solution 400ml,
Foaming properties were measured at a temperature of 35°C. The amount of foam generated was expressed in volume ml. (2) Cleanability A panel of 30 women aged 20 to 30 conducted a practical test to evaluate the product's ability to remove commercially available oil-based foundations. The numerical values in Table 2 are average values. (Rating) ◎...Extremely good cleaning performance. ○...Good cleaning properties. ○△……Cleanability is average. △...Poor cleaning performance. ×...Extremely poor cleaning performance. In addition, Comparative Examples 1 and 2 were used in the usual way of using cleansing foam and cleansing cream.
Example 1 was applied in two ways: one was to apply it on the face over an oil-based foundation, mix it with the foundation, and then wipe it off with a tissue paper, and the other method was to wash it off with water instead of wiping it with a tissue paper. Both scores were averaged. (3) Feeling after use We conducted an actual use test with a panel of 30 women aged 20 to 30, and the condition of the cheek area after washing the face (smooth feeling, moisturizing feeling, non-oily feeling)
was evaluated. The method of use was in accordance with the above-mentioned cleaning test. (Rating) Feeling of tsuppari◎...extremely no tsuppari feeling ○...little tsuppari feeling ○△... 〃 is normal △... 〃 is a little ×...extremely tsuppari feeling Moist Feeling◎...Extremely moist ○...Slightly moist ○△...Normal△...Slightly not moist ×...Extremely not moist Feeling not oily◎...Extremely oily No ○... Not too oily ○△... Normal oiliness △... Slightly oily ×... Extremely oily

[Table] Comparative Example 1 is a commercially available cleansing foam that has excellent foaming properties, but its cleaning properties for removing oil-based foundations are somewhat poor, and the feeling after use is less moisturizing and slightly firmer. Ta. Comparative Example 2 was a commercially available cleansing cream that did not create any bubbles, but had excellent cleaning properties for removing oily foundations. It didn't leave a stinging sensation after use, but it felt more oily than moisturizing. As mentioned above, commercially available cleaning agents have drawbacks in performance and sensation after use, and are not fully satisfactory. The product of the present invention has foaming properties, has excellent cleaning properties, does not have a sticky feeling after use, does not have an oily feeling,
It was a very good cleaning agent that was moisturizing. Examples 2 to 5, Comparative Examples 3 to 9 Prescriptions were prepared using the amounts shown in Table 3.

[Table] The manufacturing method was the same as in Example 1. The evaluation items included the appearance of the manufactured product and were evaluated in the same manner. The results are shown in Table 4. (1) Appearance◎...Appearance is cream-like, glossy, and good with no lumps ○...Slightly good○△...Average△...Slightly poor×...Appearance is pasty, lackluster, and has bumps defective

【table】

Claims (1)

[Claims] 1 Contains 6-40% by weight of fatty acid potassium salt, 6-50% by weight of humectant, and 6-60% by weight of oil, and the proportion of liquid oil in the total oil is 50% by weight.
A cream-like cleaning agent characterized by having the above properties.