JPH0225410A - Face lotion having iridescent luster - Google Patents

Abstract

PURPOSE:To obtain an iridescent face lotion having improved stability of iridescent luster against temperature change and long-term storage by using two or more kinds of higher fatty acid as iridescent luster agent in combination with a nonionic surfactant and a water-soluble polymer. CONSTITUTION:The objective face lotion having iridescent luster stable to temperature change and long-term storage can be produced by compounding (A) two or more kinds of higher fatty acids such as palmitic acid, stearic acid, behenic acid, myristic acid and oleic acid, (B) a nonionic surfactant [preferably higher fatty acid ester of a hydrophilic polyoxyethylene (polymerized in an amount of 20-60mol)] and (C) a water-soluble polymer (e.g., polyvinyl pyrrolidone, sodium alginate, sodium polyacrylate and polyvinyl alcohol) and adjusting the pH of the mixture to 4.5-5.5. The amounts of the components A, B and C are preferably 0.01-0.1wt.%, 0.2-0.5wt.% and 0.03-0.3wt.%, respectively, and the weight ratio of the component B to the component A is 5-10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a lotion having a glossy finish that is stable even under temperature changes and long-term storage.

[Conventional technology]

BACKGROUND OF THE INVENTION Conventionally, Q-le luster has been applied to cosmetics such as cosmetics, cosmetics, hair rinses, and lotions for the purpose of differentiating them in appearance and increasing their commercial value. At this time, No.9
The luster sources used are roughly divided into inorganic substances such as mica and fish scale foil, higher alcohol conductors, higher fatty acids and their gold J/R & salts, esters, amides, etc.

[Problem to be solved by the invention]

However, problems have been encountered using either e-leur gloss source.

When an inorganic substance is used as a 79-l gloss source, it is relatively expensive, and after use, the fine powder that is the 79-l gloss source remains on the skin, which is contrary to the cosmetic effect of the cosmetic itself. However, it has the disadvantage that it gives the user a poor feeling when using it as a cosmetic product.

On the other hand, when an organic substance such as a higher fatty acid derivative is used as a pearlescent luster source, although the above-mentioned problems when using an inorganic substance are solved, problems arise in terms of stability.

The solubility of the fine crystals of the higher fatty acid derivative used as the e-l gloss source increases as the temperature of the cosmetic containing the fine crystal rises, so that the fine crystal dissolves in the cosmetic. As a result, it was added to cosmetics. The e-mail luster will disappear. Thereafter, when the temperature decreases and the solubility decreases, the microcrystals that are the source of the pearly luster recrystallize, but the original pearly luster cannot be reproduced and agglomerations and hazy insoluble matter occur. - If the product reaches such a state, it will not return to its original state even after shaking or heating, and the product will lose its value. Depending on the season, it may not be possible to prevent temperature rises during the distribution process of cosmetics, which has become a major problem.

Several attempts have been made to solve the stability problem when using such higher fatty acid derivatives as gloss sources. For example, efforts have been made to select higher fatty acids as a source of gloss, and to incorporate substances with stabilizing effects such as various surfactants and aqueous saccharide solutions (Japanese Patent Laid-Open No. 1983-1999).
No. 149212 and No. 62-226913), but a sufficiently satisfactory effect has not yet been obtained.

[Means to solve the problem]

Therefore, as a result of various studies in order to solve all of the above problems, the inventors of the present invention found that by using two or more types of higher fatty acids as a 79-l Motozawa source and using a nonionic surfactant and a water-soluble polymer in combination. , stable against temperature changes and long-term storage.
The present invention was completed based on the discovery that it is possible to obtain a lotion with a glossy shine.

That is, the present invention contains two or more types of higher fatty acids, a nonionic surfactant, and a water-soluble polymer, and has a pH of 4.5.
The present invention provides a lotion having a hair luster in the range of 5.5 to 5.5.

Examples of higher fatty acids used in the present invention include Q-lumitic acid, stearic acid, behenic acid, myristic acid,
Examples include oleic acid. In the present invention, two or more of these higher fatty acids are used as a mixture, and it is desirable that the mixing ratio is at least 90% by weight or less of negative fatty acids. The amount of the higher fatty acid mixture to be added to the lotion is preferably 0.01 to 0.1% by weight (hereinafter referred to as F), particularly preferably 0.02 to 0.05%.

Examples of nonionic surfactants include hydrophilic ones. Higher fatty acid esters of lyoxyethylene (20 to 60 moles polymerized) are preferred. in particular? Lyoxyethylene (25-40) monostearate,? Examples include rioxyethylene (40-60) hydrogenated castor oil. The amount of nonionic surfactant used is 1, which is 5 to 10 times heavier than the higher fatty acid which is the source of Q-le luster. In particular, it is preferably blended in the lotion of the present invention in an amount of 0.2 to 0.5%. If the amount of nonionic surfactant used is too small, stable
If the amount is too high, the Q-le luster source will dissolve, which is not preferable.

Examples of water-soluble polymers include broken vinylpyrrolidone,
Sodium alginate, sodium acrylate, ?
Examples include ribinyl alcohol, which may be used alone or in combination of two or more. The amount of water-soluble polymer blended is preferably 0.03 to 0.3%, and preferably around 0.1%.

Further, the - of the lotion of the present invention is adjusted to 45 to 5.5, but the pH adjusting agent used is not limited to D41iF as long as it does not have an adverse effect on the properties of the lotion obtained. For example, organic acids such as citric acid, matric acid, malic acid,
Inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid, or their salts are used alone or in combination.

Furthermore, the lotion of the present invention may contain glycerin, 1,3-butylene glycol, nlubitol, pyrrolidone carboxylic acid, lactic acid bacteria culture supernatant, moisturizing agents such as lactic acid, various oils and fats, and preservatives, within a range that does not impair the effects of the present invention. Agents, fragrances, alcohol, vitamins, antioxidants, pigments, water, etc. can be added.

〔Example〕

Next, the present invention will be explained with reference to Examples.

Example A lotion having the composition shown in Table 1 was produced, and its properties were evaluated: (1) Immediately after production, (2) After being left at room temperature for 6 months, (7 =), and (2) After being left at 40C and 25C for 6 weeks repeatedly for half a month. did. The results are shown in Table 1.

The evaluation method was to observe the external appearance and give a rating of ○ if the condition of the no-Q-ol was good, a △ if some aggregation was observed, and a bad if the no-Q-l was agglomerated and precipitated.

The following margins [Effects of the Invention] The lotion of the present invention has been provided with the lotion. It is an excellent product whose gloss is extremely stable against temperature changes and long-term storage, and does not lose its commercial value during the distribution process.

that's all hand Continued Supplementary Positive Calligraphy (spontaneous) 1.Display of the incident 1986 Patent Application No. 174144 2. Name of the invention Lotion with pearlescent luster 3. Person who makes corrections Relationship to the case: Applicant Name (68B) Yakult Honsha Co., Ltd. 4, Agent January 19, 1989 Target of correction “Detailed description of the invention” column in the specification 7. Contents of correction (1) In the specification, page 5, line 14 Delete ", oleic acid".

Claims (1)

[Claims] 1. A pearlescent lotion containing two or more types of higher fatty acids, a nonionic surfactant, and a water-soluble polymer, and having a pH in the range of 4.5 to 5.5.