JPS62292713A - Non-aqueous emulsion-type hair-dressing cosmetic - Google Patents

Abstract

PURPOSE:To obtain the titled cosmetic having small temperature dependence of hardness, easily removable in use and having high spreadability and low stickiness, by dispersing and emulsifying an organic perfluoro compound in a solution produced by dissolving a specific fluorine-containing surfactant in an oil component. CONSTITUTION:A fluorine-containing surfactant having perfluorocarbon group and hydrocarbon group in the molecule (e.g. perfluoropropylheptane) is dissolved in an oil component such as oil or fat, wax, hydrocarbon, esterified oil, higher alcohol, higher fatty acid, etc. An organic perfluoro compound (e.g. perfluorodecalin) is dispersed and emulsified in the above solution to obtain the objective non-aqueous emulsion-type hair-dressing cosmetic containing the organic perfluoro compound dispersed in an oil. EFFECT:It has excellent storage stability.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (Technical Field) The present invention relates to a perfluoro organic compound phase/oil phase type (hereinafter referred to as
The present invention relates to a non-water emulsifying hair styling cosmetic that exhibits a dispersion state of F2O (abbreviated as F2O type).

(Prior art) Conventionally, the hardness of oil-based hair styling cosmetics is highly temperature dependent;
Due to its thick consistency, it has disadvantages such as being difficult to rub with a finger when used, not being easy to spread when applied to hair, and making hair styling cosmetics sticky.

(Disclosure of the Invention) As a result of intensive study to improve the above-mentioned drawbacks, the inventor has found that
The non-water emulsifying type A hair cosmetic exhibiting a specific F2O type dispersion state described below has spreadability and low consistency, which are the troublesome properties of perfluoro organic compounds, and has a small temperature dependence of hardness. Heading The invention has been completed.

(Objective of the Invention) That is, the object of the present invention is to provide a non-water emulsifying hair styling cosmetic that has low temperature dependence of hardness, is easy to remove during use, spreads well, has little stickiness, and has poor storage stability. It is in.

(Structure of the Invention) The present invention comprises (a) dissolving a fluorine-based surfactant having perfluorocarbon groups and hydrocarbon groups in the molecule into an oil component, and (b) dispersing and emulsifying a perfluoroorganic compound therein. This is a non-water emulsifying hair styling cosmetic that exhibits a perfluorinated organic compound-type dispersion state in oil.

(Specific description of structure) The oil component used in the present invention is a known oily substance for cosmetics, such as fats and oils, waxes, hydrocarbons, ester oils, higher alcohols, higher fatty acids, and the like.

? Examples of Ij3 fats include castor oil, olive oil, avocado oil, palm oil, and cacao oil. Examples of waxes include wood wax, lanolin, beeswax, carnauba wax, and candelilla wax. Examples of hydrocarbons include petrolatum and liquid oil. Paraffin, t! If paraffin, ceresin, microcrystalline wax, squalane, etc., examples of ester oils include butyl stearate, octyldodecyl myristate, isopropyl myristate, lanolin fatty acid isopropyl ester, butyl stearate, hexyl lanolin ester, and oleic acid. Acid oleyl ester, adipate diisopropyl ester, cepatic acid diisopropyl ester, etc., higher alcohols such as stearyl alcohol, oleyl alcohol, higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, behenic acid. , lanolin fatty acids, etc., but are not limited to these. One or more of these oil components are selected and used depending on the type of cosmetic, its purpose, etc. The blending amount is usually 40 to 95% by weight based on the total weight of the final composition of the cosmetic.

The perfluoro organic compound used in the present invention has 6 to 20 carbon atoms and all hydrogen atoms have been replaced with fluorine atoms. For example, perfluorodecalin, perfluoroadamantane, perfluorobutyltetrahydrofuran, perfluorooctane, perfluorononane, perfluoropentane, perfluorodecane, perfluorododecane, and tetrafluoroethylene oxide polymer (degree of polymerization 3 to 10). , hexafluoropropylene oxide polymer (polymerization degree of 3 to 10), etc., but are not limited to these.

These perfluorinated compounds are used in combination of -4 or two or more types depending on the purpose of the first class of cosmetics. The amount incorporated is usually 4 to 50% by weight based on the total weight of the final composition of the cosmetic.

The fluorosurfactant used in the present invention is a known compound having a perfluorocarbon group and a hydrocarbon group in its molecule. The fluorosurfactant preferably has a total carbon number of 10 to 80 and satisfies the relationship: carbon number of hydrocarbon group≧2×(carbon number of perfluorocarbon group). If the carbon number exceeds 30, the solubility and emulsifying properties will be poor, and if the total carbon number is less than 10, the emulsion stability will deteriorate. Furthermore, if the number of carbon atoms in the perfluorocarbon group exceeds 1/2 of the number of carbon atoms in the hydrocarbon group, it is not preferable because a stable type 10 emulsion cannot be obtained. Examples of these fluorosurfactants are shown in Table 1 Cζ.

One or more types of fluorosurfactants are selected and used depending on the dosage form of the cosmetic composition of the present invention.

The blending amount is usually 1% based on the total weight of the cosmetic.
~10% by weight.

Table 1: In addition to the above-mentioned ingredients, the hair styling cosmetics of the present invention include pigments, fragrances,
Preservatives, surfactants, antioxidants, etc. can be appropriately added within the range that achieves the purpose of the present invention.

(Example〕 Hereinafter, the present invention will be explained in detail based on Examples and Comparative Examples.

Practical tests such as hardness, peelability during use, elongation, stickiness, etc. and tests regarding storage stability described in Examples are as follows.

(1) Hardness The samples were stored in constant temperature chambers at temperatures of 5°C, 80'C, and 40''C and 245°C for two months, and then the hardness at each temperature of 51 was measured using a card tensile meter.

(2) Practical property test After 20 test subjects used the sample for 10 days, the properties of the sample were evaluated.

Try rjj! The results were as follows: ``Good removal of the sample'', ``Good spreadability when applying the sample'', ``Good spreadability when applying the sample'', and ``Good spreadability when applying the sample'' in terms of removal during use (how the stick of Example 4 applied to hair), spreadability, and stickiness. It is shown by the number of people who answered "I feel less sticky afterwards."

(3) Place the storage stability test sample in a constant temperature bath at 45°C, observe the emulsification state and appearance after leaving it for 3 months, and if A'X is not observed (the emulsification state is uniform and homogeneous milk). If a proboscis was formed], it was evaluated as good, and if an abnormality was observed (such as when the perfluoro organic compound separated or the particles became coarse), it was evaluated as poor.

Example 1 (Pomade) (1) Prescription (2) Production method Component CB) heated to 80"C was added to component (4), which was heated to 85°C and uniformly dissolved, while stirring with a homomixer. The mixture is uniformly dispersed and emulsified, and cooled to room temperature while stirring to obtain an F10 type emulsion.

(3) Characteristics The test results regarding durability are listed in Table 2.

As shown in Table 2, the pomade of Example 1 of the present invention has low temperature dependence of hardness, good sample removal, good spreadability during application, less sticky feeling after application, and storage stability. It was excellent.

Comparative Example 1 (Pomade) Comparative Example 1 was prepared in the same manner as in Example 1 except that castor oil was blended instead of perfluorodecalin (10.0ffim%).
I got the pomade.

(1) Characteristics As shown in Table 2, the hair styling cosmetic that does not contain perfluoro organic compounds of Comparative Example 1 has a high temperature dependence of hardness (hardness, poor removal and spread, and is difficult to apply to hair). It was sticky and sticky.

Example 2 (Pomade) In place of 0.75% perfluoropentyl decalin and 0.75% perfluorohexyl lauryl ether, 1.51% perfluoropropyl penkune was blended. 114 and obtained the pomade.

(1) Characteristics As shown in Table 2, pomades using fluorine-based emulsifiers with a total carbon number of 10 have storage stability, temperature dependence of hardness,
It has excellent properties such as ease of removal, spreadability, and stickiness.

Example 8 (Pomade) In place of 0.75% by weight of perfluoropentyl decalin and 0.75% by weight of perfluorohexyl lauryl ether, 1.5% by weight of perfluorononane octadecane was blended. A pomade was obtained in the same way as Example 1 and 1μd.

(1) Properties As shown in Table 2, the properties of the pomade using the fluorine-based emulsifier 8 in which the number of carbon atoms in the hydrocarbon group is twice the number of carbon atoms in the perfluorocarbon group are excellent.

Example 4 (Stick) (2) Production method Component CB) heated to 80"C was added to component (1), which was uniformly dissolved by heating to 85"C, while stirring with a homomixer, and dispersed uniformly. Emulsify, cool to 50°C with stirring, pour into a mold, further cool to room temperature,
Get a mold emulsion stick.

(3) Characteristics Test results regarding various properties are listed in Table 2.

As shown in Table 2, the stick of Example 4 had a small temperature dependence of hardness, had good adhesion to the sample, and
It spread well during application, was less sticky after application, and had excellent storage stability.

-be Margin below

Claims (1)

[Claims] (a) A fluorosurfactant having a perfluorocarbon group and a hydrocarbon group in its molecule is dissolved in an oil component, and (b) a perfluoroorganic compound is dispersed and emulsified in this to form a perfluoroorganic compound in oil. A non-water emulsifying hair styling cosmetic that exhibits a dispersed state.