JPH1112131A - Make-up cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic which has stably dispersed powder in the cosmetic and is excellent in the touch on use and the water resistance by mixing a water-soluble alkyl-substituted polysaccaride derivative, powder and water. SOLUTION: The objective cosmetic with 60 degrees or more in the contact angle of cosmetic applied film to water is obtained by formulating (A) 0.01-10 wt.% of a water-soluble alkyl-substituted polysaccaride derivative [a part or all of hydrogen atoms of hydroxyl groups in polysaccharides or their derivatives are substituted with (a) an 8-40C alkyl, an alkenyl, etc., and (b) a substitutent group (particularly a 1-5C sulfoalkyl or its salt) having an ionic or nonionic hydrophilic moiety which hydroxylic groups may be substituted and the rate between (a) and (b) is 1:100-100:1, e.g. cellulose, guar gum, star, etc.], with (B) 1-50 wt.% of powder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a makeup cosmetic in which a powder is dispersed very stably, has a good feeling in use, and is excellent in water resistance.

[0002]

2. Description of the Related Art Make-up cosmetics have functions of concealing skin color, spots, freckles, etc., and protecting skin from ultraviolet rays by containing powder. In particular, make-up cosmetics containing water have a good feel and are easy to stably incorporate a water-soluble humectant or a functional substance.In recent years, foundations containing water, sun care agents, lipsticks, Many makeup cosmetics such as eyeliners and nail enamels are produced.

[0003] On the other hand, in recent years, there has been a tendency for a large amount of powder to be blended in a makeup cosmetic in order to exhibit various functions. In addition, from the viewpoint of long-lasting make-up cosmetics, there is an increasing tendency to increase the water resistance by hydrophobizing the powder surface. However, it is difficult to stably disperse such powders, especially hydrophobic powders and hydrophobized powders, in a makeup cosmetic containing water. It had to be used as an agent. However, when several kinds of functional powders are blended in large amounts, or when the hydrophobized powder is blended into a makeup cosmetic containing water, the powders are easily aggregated, so that these are stably dispersed. For this purpose, it is necessary to use a larger amount of a water-soluble surfactant, and there is a problem that the excellent feeling in use, which is a characteristic of the makeup cosmetic containing water, is lost, and the water resistance is lowered.

In recent years, organic siloxanes (JP-A-63-215615) have been used for the purpose of imparting water resistance to make-up cosmetics and improving the usability. However, powders and aqueous components (water,
Moisturizers such as glycerin and other water-soluble cosmetic compositions)
It is difficult to stably mix
It is necessary to use an emulsifier in combination, which also has an adverse effect on use as a water-containing makeup cosmetic.

[0005] Further, conventionally, a water-soluble polymer has been blended into a makeup cosmetic containing water. For example, various cellulose ethers are widely used as thickeners, gelling agents, excipients, emulsion stabilizers and the like. Examples of such cellulose ethers include water-soluble nonionic cellulose ethers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose and ethylhydroxyethylcellulose; ions such as carboxymethylcellulose, cationized cellulose and cationized hydroxyethylcellulose Cellulose ethers and the like are commercially available and used.

[0006] These cellulose ethers are relatively excellent in viscosity stabilizing action and powder dispersibility of an aqueous solution coexisting with powder, but have a low thickening property, and are particularly thickeners for makeup cosmetics. When used as a dispersion stabilizer, it was necessary to use a large amount of cellulose ethers in order to sufficiently exhibit the properties thereof. However, when cellulose ethers are blended in a large amount, there is a problem in that a touch surface such as stickiness and film feeling is caused, and further, there is a large change with temperature change, and it is difficult to maintain a stable product form.

Further, as water-soluble alkyl-substituted polysaccharide derivatives, JP-A-3-012401, JP-A-3-41210,
Although described in JP-A-3-114214, JP-A-3-0114
No. 2401 discloses a method for producing a modified water-soluble cellulose ether, but does not relate to a makeup cosmetic in which powder is dispersed in water. In addition, JP-A-3-
JP-A-141210 and JP-A-3-14214 describe the use of a hydrophobically modified nonionic water-soluble polymer together with other essential components in a cosmetic composition, but they mainly relate to hair care cosmetics, and It does not relate to cosmetics, especially makeup cosmetics, and does not describe the dispersibility of the powder or its water resistance.

[0008]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a makeup cosmetic which stably disperses powder, and which is excellent in use feeling and water resistance.

[0009]

Under such circumstances, the present inventors have conducted intensive studies and as a result, it has been found that the use of a water-soluble alkyl-substituted polysaccharide derivative makes it possible to disperse powder in a cosmetic in a very stable manner. The present inventors have found that a makeup cosmetic having a good feeling upon use and excellent water resistance can be obtained, and the present invention has been completed.

That is, the present invention provides the following component (A):
(B) and (C): (A) a water-soluble alkyl-substituted polysaccharide derivative, (B) powder,
(C) To provide a makeup cosmetic containing water.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The water-soluble alkyl-substituted polysaccharide derivative of the component (A) used in the present invention is water-soluble at room temperature, for example, a part or all of hydrogen atoms of a hydroxyl group of a polysaccharide or a derivative thereof. Are the following groups (a) and (b): (a) a hydrophobic part selected from a linear or branched alkyl group having 8 to 40 carbon atoms, an alkenyl group, an arylalkyl group, an alkylaryl group and a mixture thereof; (B) a substituent having an ionic or non-ionic hydrophilic moiety which may be substituted on the hydroxyl group, and the number of substituents (a) and (b) The ratio is 1:
A ratio of 1000 to 100: 1 is exemplified.

The substituent (a) is, for example, a linear or branched alkyl group having 8 to 40 carbon atoms, an alkenyl group, an arylalkyl group, an alkylaryl group, an alkyl ether group, an alkenyl ether group, an arylalkyl group. An ether group, or an alkylaryl ether group, an alkyl glyceryl ether group having a linear or branched alkyl group having 10 to 40 carbon atoms, an alkenyl glyceryl ether group having a linear or branched alkenyl group having 10 to 40 carbon atoms, or the like. No. Of these, particularly those having 1 carbon atom
An alkyl glyceryl ether group having a linear or branched alkyl group of 0 to 40, or an alkenyl glyceryl ether group having a linear or branched alkenyl group of 10 to 40 carbon atoms is preferable, and specifically, 2-hydroxy-3- An alkoxypropyl group, a 2-alkoxy-1- (hydroxymethyl) ethyl group, a 2-hydroxy-3-alkenyloxypropyl group, and a 2-alkenyloxy-1- (hydroxymethyl) ethyl group, which bind to a polysaccharide molecule. May be substituted with the hydrogen atom of the hydroxyl group of the hydroxyethyl group or hydroxypropyl group. Examples of the alkyl or alkenyl group having 10 to 40 carbon atoms substituted on these glyceryl ether groups include those having 12 to 3 carbon atoms.
6, in particular, 16 to 24 linear or branched alkyl and alkenyl groups are preferred, and from the viewpoint of stability, an alkyl group, particularly a linear alkyl group, is preferred. When the substituent (a) has a hydroxyl group, the hydroxyl group may be further substituted with another substituent (a) or (b).

Further, examples of the substituent (b) include a methyl group, a hydroxyethyl group, a hydroxypropyl group, a polyoxyethylene group, a polyglycerin group, a sulfoalkyl group and the like. Among these, a sulfoalkyl group having 1 to 5 carbon atoms which may be substituted by a hydroxyl group or a salt thereof is preferable, and specifically, a 2-sulfoethyl group,
Examples thereof include a 3-sulfopropyl group, a 3-sulfo-2-hydroxypropyl group, and a 2-sulfo-1- (hydroxymethyl) ethyl group, all or a part of which is an alkali metal such as Na or K, Ca, or Mg. Alkaline earth metals such as
It may be in the form of a salt with an organic cation group such as an amine or an ammonium ion. When the substituent (b) has a hydroxyl group, the hydroxyl group may be further substituted with another substituent (a) or (b).

The degree of substitution of the substituent (a) is preferably from 0.001 to 1, more preferably from 0.002 to 0.5, even more preferably from 0.003 to 0.1 per constituent monosaccharide residue. (B)
Is preferably 0.01 to 2.5, more preferably 0.02 to 2, further preferably 0.1 to 1.5 per constituent monosaccharide residue. The ratio of the substituent (a) to the substituent (b) is 1: 1.
It is preferably from 000 to 100: 1, in particular from 1: 500 to 10: 1, more preferably from 1: 300 to 10: 1. In the case of the water-soluble alkyl-substituted polysaccharide derivative, the substituents (a) and (b) do not necessarily need to be present in the same repeating unit of the polysaccharide or a derivative thereof. And the substituents (a) and (b) may be introduced. It is preferable that the degree of substitution be on average within the above range.

[0015] The polysaccharide or its derivative serving as the basic skeleton of the water-soluble alkyl-substituted polysaccharide derivative of the component (A) includes cellulose, guar gum, starch, hydroxyethyl cellulose, hydroxyethyl guar gum, hydroxyethyl starch, methyl cellulose, methyl guar gum. , Methyl starch, ethyl cellulose, ethyl guar gum, ethyl starch, hydroxypropyl cellulose, hydroxypropyl guar gum, hydroxypropyl starch, hydroxyethyl methyl cellulose, hydroxyethyl methyl guar gum, hydroxyethyl methyl starch, hydroxypropyl methyl cellulose, hydroxypropyl methyl guar gum, hydroxypropyl methyl Starch and the like, among which cellulose,
Hydroxyethyl cellulose, methyl cellulose, ethyl cellulose and hydroxypropyl cellulose are preferred. Further, a substituent such as a methyl group, an ethyl group, a hydroxyethyl group, or a hydroxypropyl group of these polysaccharides is
It may be substituted with a single substituent or may be substituted with a plurality of substituents, and the degree of substitution per constituent monosaccharide residue is 0.1 to 10, particularly 0.5 to 5. preferable.
The weight average molecular weight of these polysaccharides or derivatives thereof is 10,000 to 10,000,000, preferably 100,000 to 5,000,000,
Particularly preferably, it is in the range of 300,000 to 2,000,000.

As the water-soluble alkyl-substituted polysaccharide derivative of the component (A), some or all of the hydrogen atoms of the hydroxyl group of the polysaccharide or a derivative thereof have the following groups (a ') and (b'): ') An alkyl glyceryl ether group having a linear or branched alkyl group having 10 to 40 carbon atoms and / or an alkenyl glyceryl ether group having a linear or branched alkenyl group having 10 to 40 carbon atoms, (b') a hydroxyl group Is preferably substituted with an optionally substituted sulfoalkyl group having 1 to 5 carbon atoms or a salt thereof. Here, when the substituents (a ′) and (b ′) have a hydroxyl group, the hydroxyl group may be further substituted with another substituent (a ′) or (b ′).

Such a water-soluble alkyl-substituted polysaccharide derivative is obtained by partially hydrophobizing (introducing a substituent (a ')) or sulfonating (substituent having a sulfonic acid group) a hydrogen atom of a hydroxyl group of the polysaccharide or a derivative thereof. After the introduction of the group (b ')), it can be produced by sulfonating or hydrophobizing all or a part of the hydrogen atoms of the remaining hydroxyl groups, or by simultaneously performing hydrophobization and sulfonation.

Hereinafter, the hydrophobization reaction and the sulfonation reaction will be described separately. As described above, either of the hydrophobizing reaction and the sulfonating reaction may be performed first, or may be performed simultaneously. However, it is more preferable that the hydrophobizing is performed and then the sulfonating is performed.

<Hydrophobic Reaction> The hydrophobizing reaction of the polysaccharide or the sulfonated polysaccharide is carried out by dissolving or dispersing the polysaccharide or the sulfonated polysaccharide in an appropriate solvent, and adding a C ₁₀ -C ₄₀ alkyl glycidyl ether and / or C selected from ₁₀ -C ₄₀ alkenyl glycidyl ether is carried out by reacting a hydrophobic agent.

C used in the hydrophobic reaction_Ten~ C₄₀Archi
Luglycidyl ether and C_Ten~ C ₄₀Alkenyl glyci
Alkyl and alkenyl groups of the gill ether are straight-chain and
Branch position.
The number and position of the unsaturated bonds in the kenyl group are not particularly limited.
No. Specific examples of the alkyl group include a straight-chain alkyl group.
And n-decyl group, n-undecyl group, n-dodecyl
Group, n-tridecyl group, n-tetradecyl group, n-pen
Tadecyl group, n-hexadecyl group, n-heptadecyl
Group, n-octadecyl group, n-nonadecyl group, n-ico
A sil group, an n-henicosyl group, an n-docosyl group, an n-to
Lycosyl group, n-tetracosyl group, n-pentacosyl
Group, n-hexacosyl group, n-heptacosyl group, n-o
Kutakosyl group, n-nonakosyl group, n-triacontyl
Group, n-hentriacontyl group, n-dotriacontyl
Group, n-tritriacontyl group, n-tetratriacon
Tyl group, n-pentatriacontyl group, n-hexatri
Acontyl group, n-heptatriacontyl group, n-oct
Tatriacontyl group, n-nonatriacontyl group and n
A tetracontyl group is a methyl group as a branched alkyl group;
Undecyl group, methylheptadecyl group, ethylhexadec
Sil group, methyl octadecyl group, propyl pentadecyl
Group, 2-hexyldecyl group, 2-octyldodecyl, 2
-Heptylundecyl group, 2-decyltetradecyl group,
2-dodecylhexadecyl group, 2-tetradecylocta
Decyl group, 2-tetradecylbehenyl group and the like.
You. Specific examples of the alkenyl group include a decenyl group,
Decenyl, dodecenyl, tridecenyl, tetrade
Cenyl, pentadecenyl, hexadecenyl, hept
Tadecenyl group, octadecenyl group, nonadecenyl group, i
Cosenyl group, henicocenyl group, docosenyl group, tricho
Senyl, tetracosenyl, pentacosenyl, hex
Sacocenyl group, heptacocenyl group, octacocenyl group,
Nonacocenyl group, triacontenyl group, oleyl group,
Examples include a noreyl group and a linolenyl group. These
And an alkyl group having 12 to 36 carbon atoms, particularly 16 to 24 carbon atoms.
And alkenyl groups are preferred.
Alkyl groups, especially linear alkyl groups, are preferred. These al
Kill glycidyl ether and alkenyl glycidyl ether
Tell may be used alone or in combination of two or more.
Can be. Alkyl glycidyl ether and / or
The amount of lucenyl glycidyl ether used depends on the polysaccharide or its
Depending on the desired amount of hydrophobic substituent introduced into the derivative of
Usually, polysaccharides or their derivatives can be adjusted.
0.001 to 10 equivalents, particularly per monosaccharide residue constituting body
A range of 0.003 to 1 equivalent is preferred.

The hydrophobizing reaction is preferably carried out in the presence of an alkali, if necessary. The alkali is not particularly limited, and may be an alkali metal or alkaline earth metal hydroxide, carbonate, bicarbonate or the like. Among them, sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide and the like are preferable. The amount of alkali used is
0.01 to 10 mol times, especially 0.1 to 5 mol times, of the alkyl glycidyl ether or alkenyl glycidyl ether to be used gives good results, and thus is preferred.

Examples of the solvent include lower alcohols such as isopropyl alcohol and tert-butyl alcohol. For the purpose of swelling the polysaccharide or the sulfonated polysaccharide to increase the reactivity with the hydrophobizing agent, a mixed solvent obtained by adding 1 to 50% by weight, more preferably 2 to 30% by weight of water to the lower alcohol is used. May be used to carry out the reaction.

The reaction temperature is from 0 to 200 ° C., especially from 30 to 10 ° C.
A range of 0 ° C. is preferred. After completion of the reaction, the alkali is neutralized using an acid. As the acid, inorganic acids such as sulfuric acid, hydrochloric acid and phosphoric acid, and organic acids such as acetic acid can be used. Also,
The next reaction can be carried out without neutralization on the way.

When the hydrophobized polysaccharide thus obtained is subsequently used for a sulfonation reaction, it can be used as it is without neutralization, and if necessary, it can be separated by filtration or the like, It can also be used after washing with aqueous isopropyl alcohol, aqueous acetone solvent or the like to remove unreacted hydrophobizing agents or salts produced as a result of neutralization or the like.
If a sulfonation reaction has already been performed before the hydrophobization reaction, after separation by filtration, etc., washing, if necessary,
After neutralization or the like, the polysaccharide derivative of the component (A) can be obtained by drying.

<Sulfonation Reaction> The sulfonation reaction of the polysaccharide or the hydrophobized polysaccharide is carried out by dissolving or dispersing the polysaccharide or the hydrophobized polysaccharide in an appropriate solvent, even if the vinyl sulfonic acid or the hydroxyl group is substituted. It is carried out by reacting with a sulfonating agent selected from good halo C ₁ -C ₅ alkanesulfonic acids and their salts.

Among the sulfonating agents used for the sulfonation reaction, halo C ₁ optionally substituted with a hydroxyl group.
The -C ₅ alkane sulfonic acid, 3-halo-2-hydroxy propane sulfonic acid, 2-halo-2- (hydroxymethyl) ethane sulfonic acid, 3-halopropanoic acid, include such as 2-halo-ethanesulfonic acid The substituted halogen atom includes a fluorine atom, a chlorine atom, a bromine atom and the like. Examples of these salts include alkali metal salts such as sodium salts and potassium salts, alkaline earth metal salts such as calcium salts and magnesium salts, and ammonium salts. These sulfonating agents can be used alone or in combination of two or more. The amount of the sulfonating agent used can be appropriately adjusted depending on the amount of the sulfonic acid group introduced into the polysaccharide, but is usually 0.1 to 10 equivalents, particularly preferably 0 to 10 per monosaccharide residue of the polysaccharide or the hydrophobized polysaccharide. .
A range of 2 to 5 equivalents is preferred.

This reaction is preferably carried out in the presence of an alkali, if necessary. Such an alkali is not particularly limited, but may be the same as that used in the hydrophobization reaction, that is, an alkali metal or an alkaline earth metal. Hydroxide, carbonate, bicarbonate and the like, among which sodium hydroxide, potassium hydroxide, calcium hydroxide,
Magnesium hydroxide and the like are preferred. The amount of the alkali to be used is preferably 1.0 to 3.0 mol times, particularly 1.05 to 1.5 mol times with respect to the sulfonating agent to be used, to give good results, and is preferable.

Examples of the solvent include lower alcohols such as isopropyl alcohol and tert-butyl alcohol. In order to increase the reactivity between the polysaccharide or the hydrophobized polysaccharide and the sulfonating agent, a mixed solvent obtained by adding 0.1 to 100% by weight, more preferably 1 to 50% by weight of water to the lower alcohol. May be used to carry out the reaction.

The reaction temperature is 0 to 150 ° C., especially 30 to 10 ° C.
A range of 0 ° C. is preferred. After completion of the reaction, the alkali is neutralized using an acid. As the acid, inorganic acids such as sulfuric acid, hydrochloric acid and phosphoric acid, and organic acids such as acetic acid can be used. The next reaction can be carried out without neutralization on the way.

When the sulfonated polysaccharide thus obtained is subsequently used in a hydrophobic reaction, it can be used as it is without neutralization, and if necessary, can be separated by filtration or the like, It can also be used after washing with aqueous isopropyl alcohol, aqueous acetone solvent or the like to remove unreacted alkylating agent or salts produced as a result of neutralization or the like. If the hydrophobization reaction has already been carried out before the sulfonation reaction, after separation by filtration or the like, washing and neutralization are carried out as necessary, and then drying to obtain the polysaccharide derivative of the component (A). Obtainable.

As described above, the substituents (a) and (b) in the polysaccharide derivative obtained as described above include not only the hydroxyl group of the polysaccharide or its derivative used as a raw material, but also other substituents ( In some cases, the hydroxyl group of a) or the substituent (b) may be substituted, and such substitution may occur in a superimposed manner. That is, only the hydrogen atom of the hydroxyl group of the polysaccharide or a derivative thereof has the substituent (a)
In addition to the compounds substituted with (b) and (b), when sulfonated after hydrophobization, the substituent (a) is further substituted with the substituent (a).
Or (b) may be substituted, and the substituent (b) may further include a substituent (b). When the sulfonation is followed by hydrophobization, the substituent (a) is further substituted. The group (a) is substituted and the substituent (b) is further substituted with the substituent (b)
Or (a) may be substituted, and when hydrophobization and sulfonation are performed simultaneously, the substituent (a)
Is further substituted with a substituent (a) or (b), and the substituent (b)
May further include those further substituted by the substituent (a) or (b), and may further include those further substituted by other substituents. In the present invention, any of such polysaccharide derivatives can be used.

Examples of the water-soluble alkyl-substituted polysaccharide derivative of the component (A) include Examples 1 to 3 of JP-A-3-24001.
3 and the nonionic long-chain alkylated cellulose ethers described in US Pat. No. 4,228,277; commercially available products such as NATROSOL PLUS 330 and NATROSOL PLUS CS ) D-6
Alkyl-modified hydroxyethylcellulose such as No. 7 (manufactured by Aqualon Co., Ltd.), and hydrophobized-modified sulfonated polysaccharide derivatives can be preferably used.

The water-soluble alkyl-substituted polysaccharide derivative of the component (A) can be used alone or in combination of two or more. It is preferable that the water-soluble alkyl-substituted polysaccharide derivative is used in an amount of 0.01 to 10% by weight in the whole composition. 0.02 to 5% by weight, and further 0.05 to 3% by weight, sufficient powder dispersibility can be obtained,
The feeling of use is also good and preferable.

The powder of the component (B) used in the present invention is not particularly limited as long as it is used in ordinary make-up cosmetics. Pages 330 to 3)
Those described on page 87 can be used. Specifically, kaolin, phlogopite, aluminum magnesium silicate, calcium silicate, synthetic aluminum silicate, sericite, talc, natural aluminum silicate, pyroferritic clay, bentonite, mica, silicic anhydride, silicic anhydride Aluminum oxide, montmorillonite, yellow iron oxide, loess, black iron oxide, red iron oxide, black titanium oxide, zinc oxide, aluminum oxide, aluminum cobalt oxide, chromium oxide, zirconium oxide, titanium oxide, titanium oxide sol, iron oxide / titanium oxide sinter Material, cerium oxide, magnesium oxide, chromium hydroxide, titanium
Titanium oxide sinter, cobalt titanate, gunjo, gunjo violet, gunjo pink, konjo, manganese violet, carbon black, light calcium carbonate, heavy magnesium carbonate, heavy calcium carbonate, heavy magnesium carbonate, barium sulfate, Titanium mica, bismuth oxychloride, pearl powder, calamine,
Epoxy-treated aluminum, acrylic resin-coated aluminum powder, aluminum powder, gold colloid, gold foil, sodium rosinate-treated magnesium oxide, calamine, magnesium silicate, boron nitride, and other inorganic powders; nylon powder, polyethylene powder, PMMA, tetrafluoride Examples include polyethylene resin, crosslinked polystyrene, synthetic resin powder such as silicone resin powder, natural fiber powder such as silk, wool, cellulose, and the like, starch powder such as rice, corn, potato, and organic dyes. In addition, those obtained by compounding two or more of these powders by physical action in advance can be used.

Further, those powders which have been subjected to a hydrophobic treatment can also be used, which is preferable since the water resistance is further improved. For the hydrophobizing treatment, a normal surface treatment method can be used.For example, fats and oils are adsorbed on the powder surface, or esterification or etherification is caused by using a functional group such as a hydroxyl group, and the powder is made lipophilic. Grease treatment method, metal soap treatment method using zinc salt, magnesium salt or aluminum salt of fatty acid, silicone treatment method using silicone compound such as dimethyl siloxane or methyl hydrogen siloxane, treatment with fluorine compound having perfluoroalkyl group And the like.

The powder of the component (B) can be used alone or in combination of two or more. It is preferable to mix 1 to 50% by weight, particularly 2 to 40% by weight, more preferably 3
It is preferable to mix the powder in an amount of up to 35% by weight because a sufficient make-up effect can be obtained and the feeling in use is more excellent.

The water of the component (C) used in the present invention is not particularly limited as long as it is used for ordinary cosmetics. For example, purified water, ion-exchanged water, natural water, mineral water, etc. Any of those having no problem can be used.

The amount of water of component (C) varies depending on the type of make-up cosmetics and the like, and is not particularly limited. However, substantially 1 to 95% by weight, particularly 2 to 93% by weight in the total composition,
More preferably, it is 5 to 90% by weight.

The make-up cosmetics of the present invention include, in addition to the above-mentioned essential components, components to be blended with ordinary cosmetics, such as surfactants, oils, silicone oils, perfluoropolyethers, humectants, and film-forming agents. , Oil gelling agents, organic UV absorbers, inorganic metal salts, organic metal salts, alcohols,
Chelating agents, pH adjusters, preservatives, other thickeners, medicinal ingredients, pigments, fragrances, and the like can be appropriately compounded as long as the effects of the present invention are not impaired.

The makeup cosmetic of the present invention can be produced according to a usual method, and the dosage form is not particularly limited. For example, an aqueous dispersion type, an O / W emulsification type, a W / O
It is prepared as an emulsion type, gel type or the like.
Also, foundations, sun care agents, lipsticks, eye shadows, eye liners, mascaras, nail enamels, carmine lotions, tint lotions, leg make-up agents, arm make-up agents, neck make-up agents, finger make-up agents, etc. Can be applied as

The make-up cosmetic of the present invention is excellent in water resistance. The contact angle of the cosmetic coating film to water, which is used as a standard of the water resistance, is such that the skin cosmetic is exposed to sweat or external contact. It indicates the degree to which it is hard to be washed away, and can be measured by the following method. That is, an artificial leather (polyurethane sheet 10 cm square) is prepared, and a sample of 80 mg is applied with a finger to the surface of the artificial leather sheet 5 cm square (25 cm ² ) so as to be uniform, and 40 ° C.
-Dry for 1 hour at a humidity of 50% ± 10%. Then, the sheet is divided into equal parts using a cutter to a size that can be inserted into the contact angle measuring device, and one drop of ion-exchanged water is applied from the tip of the micro syringe to the sample surface in an environment of 20 ° C. and 50% ± 10% humidity. The contact angle (degree) at that time is measured after 1 minute.

In the present invention, it is possible to obtain a highly water-resistant makeup cosmetic having a contact angle thus determined of 60 degrees or more.

[0043]

According to the makeup cosmetic of the present invention, the powder is dispersed in the cosmetic in a very stable and highly dispersible manner.
It has good usability and excellent water resistance.

[0044]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto.

In the following production examples, the degree of substitution of the hydrophobic substituent of the water-soluble alkyl-substituted polysaccharide derivative was determined by NMR.
(Solvent: deuterated DMSO). The substitution degree of the sulfone group was determined by a colloid titration method. That is, a thickener solution having a known concentration is prepared, and under stirring,
An N / 200 methyl glycol chitosan solution of known weight (Wako Pure Chemicals, for colloid titration) was added, and several drops of a toluidine blue indicator solution (Wako Pure Chemicals, for colloid titration) were added. This was back-titrated with an N / 400 polyvinyl potassium sulfate solution (Wako Pure Chemicals, for colloid titration), and the degree of substitution was calculated from the titer. In the following Production Examples, the “degree of substitution” indicates the number of substituents per constituent monosaccharide residue.

Production Example 1 (1) A 1000 ml glass separable reaction vessel equipped with a stirrer, a thermometer and a cooling tube was charged with a weight average molecular weight of about 80.
50 g of hydroxyethyl cellulose (HEC-QP4400, manufactured by Union Carbide) having a degree of substitution of hydroxyethyl groups of 1.8, 88% isopropyl alcohol 4
A slurry liquid was prepared by adding 00 g and 3.5 g of a 48% aqueous sodium hydroxide solution, and the mixture was stirred at room temperature under a nitrogen atmosphere for 30 minutes. This is followed by stearyl glycidyl ether 5.4
g was added, and the mixture was reacted at 80 ° C. for 8 hours to perform hydrophobization.
After the completion of the hydrophobization reaction, the reaction solution was neutralized with acetic acid, and the reaction product was separated by filtration. The reaction product was washed with 500 g of 80% acetone 2
Twice, followed by washing twice with 500 g of acetone.
Drying at ℃ for 24 hours gave 49.4 g of a hydrophobized hydroxyethylcellulose derivative.

(2) In a 500 ml glass separable reaction vessel equipped with a stirrer, thermometer and cooling tube, the hydrophobized hydroxyethylcellulose derivative obtained in (1).
A slurry liquid was prepared by charging 0 g, 80.0 g of isopropyl alcohol and 0.33 g of a 48% aqueous sodium hydroxide solution, and the mixture was stirred at room temperature for 30 minutes under a nitrogen stream. 6.4 g of sodium 3-chloro-2-hydroxypropanesulfonate and 2.7% of a 48% aqueous sodium hydroxide solution were added to the reaction solution.
g of water and 20.0 g of water.
Time sulfonation was performed. After completion of the reaction, the reaction solution was neutralized with acetic acid, and the product was separated by filtration. The product was washed three times with 500 g of 80% acetone (20% water) and then 2 times with 500 g of acetone.
After washing twice, drying at 70 ° C. under reduced pressure for one day and night, a water-soluble alkyl-substituted polysaccharide derivative substituted with a stearyl glyceryl ether group and a sulfo-2-hydroxypropyl group (1)
7.2 g were obtained.

The degree of substitution of the stearyl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (1) was 0.030, the degree of substitution of the sulfo-2-hydroxypropyl group was 0.15, and the hydrophobic part substituent ( The ratio between the number of a) and the number of the hydrophilic group substituent (b) was 30: 150.

Preparation Example 2 Hydrophobization was carried out in the same manner as in Preparation Example 1 except that the amount of stearyl glycidyl ether was changed to 10.8 g.
9.6 g of sodium chloro-2-hydroxypropanesulfonate, 48% aqueous sodium hydroxide solution
Sulfonation was carried out in the same manner except that the amount of 7 g was changed to 4.0 g to obtain a water-soluble alkyl-substituted polysaccharide derivative (2).

The degree of substitution of the stearyl glyceryl ether group of the resulting water-soluble alkyl-substituted polysaccharide derivative (2) was 0.058, the degree of substitution of the sulfo-2-hydroxypropyl group was 0.20, and the hydrophobic substituent ( The ratio of the number of a) to the number of the hydrophilic group substituent (b) was 58: 200.

Production Example 3 10.0 g of the hydrophobized hydroxyethylcellulose obtained in Production Example 1 (1), 160 g of isopropyl alcohol and 25% were placed in a 500 ml glass separable reaction vessel equipped with a stirrer, thermometer and cooling tube. A slurry liquid was prepared by charging 18.0 g of an aqueous solution of sodium vinyl sulfonate. This was stirred at room temperature for 30 minutes under a nitrogen stream,
A 1.2% aqueous sodium hydroxide solution was charged, and the mixture was further stirred at room temperature for 60 minutes under a nitrogen stream. 80 ℃ of slurry liquid
The mixture was stirred at 80 ° C. for 2 hours to perform sulfonation. After completion of the reaction, the reaction solution was cooled to 60 ° C., neutralized with acetic acid, and the product was separated by filtration. The product was treated with 80% acetone (water 20
%) Three times with 500 g and then twice with 500 g of acetone, dried under reduced pressure at 70 ° C. for one day and night, and 8.9 g of a water-soluble alkyl-substituted polysaccharide derivative (3) substituted with a stearyl glyceryl ether group and a sulfoethyl group was obtained. Obtained.

The degree of substitution of the stearyl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (3) was 0.030, the degree of substitution of the sulfoethyl group was 0.18, and the hydrophobic part substituent (a) and the hydrophilic part were The ratio of the number of the substituents (b) was 30: 180.

Production Example 4 The hydrophobized hydroxycellulose used in Production Example 2 was sulfonated in the same manner as in Production Example 3 except that the amount of a 25% aqueous solution of sodium vinyl sulfonate was 36.0 g, and a stearyl glyceryl ether group and a sulfoethyl group were used. The substituted water-soluble alkyl-substituted polysaccharide derivative (4) was obtained.

The degree of substitution of the stearyl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (4) was 0.058, the degree of substitution of the sulfoethyl group was 0.34, and the hydrophobic part (a) and the hydrophilic part were substituted. The ratio of the number of the substituents (b) was 58: 340.

Production Example 5 10.0 g of the hydrophobized hydroxyethyl cellulose obtained in Production Example 1 (1), 160 g of 90% isopropyl alcohol, and 500 g of a separable glass reaction vessel equipped with a stirrer, a thermometer, and a cooling tube were added. A slurry solution was prepared by adding 7.2 g of a 48% aqueous sodium hydroxide solution, and the mixture was stirred at room temperature for 30 minutes under a nitrogen stream. The reaction solution is further cooled to 10 ° C under ice cooling.
After cooling to below, 15.0 g of sodium 3-bromopropanesulfonate was charged and stirred at 10 ° C. or lower for 60 minutes. Further, the temperature of the reaction solution was raised to 80 ° C., and the mixture was stirred at 80 ° C. for 2 hours to perform sulfonation. After the completion of the reaction, the reaction solution was cooled to 60 ° C., neutralized with acetic acid, and the product was separated by filtration. The product was washed three times with 500 g of 80% acetone (20% water) and then twice with 500 g of acetone.
After drying day and night, 8.9 g of a water-soluble alkyl-substituted polysaccharide derivative (5) substituted with a stearyl glyceryl ether group and a sulfopropyl group was obtained.

The degree of substitution of the stearyl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (5) was 0.030, the degree of substitution of the sulfopropyl group was 0.10. The ratio of the number of the partial substituents (b) was 30: 100.

Production Example 6 (1) A 1000 ml glass separable reaction vessel equipped with a stirrer, a thermometer and a cooling tube was charged with a weight average molecular weight of about 80.
50 g of hydroxyethyl cellulose (HEC-QP4400, manufactured by Union Carbide) having a degree of substitution of hydroxyethyl groups of 1.8, 88% isopropyl alcohol 4
A slurry liquid was prepared by adding 00 g and 3.5 g of a 48% aqueous sodium hydroxide solution, and the mixture was stirred at room temperature under a nitrogen atmosphere for 30 minutes. To this, palmityl glycidyl ether 8.5
g was added and reacted at 80 ° C. for 9 hours to effect hydrophobicization.
After the completion of the hydrophobization reaction, the reaction solution was neutralized with acetic acid, and the reaction product was separated by filtration. The reaction product was washed with 500 g of 80% acetone 2
Twice, followed by washing twice with 500 g of acetone.
Drying at ℃ for one day and night gave 50.3 g of a hydrophobized hydroxyethylcellulose derivative.

(2) In a 500 ml glass separable reaction vessel equipped with a stirrer, thermometer and condenser, 10.0 g of the hydrophobized hydroxyethyl cellulose obtained in (1), 160 g of isopropyl alcohol and 25% vinyl sulfonic acid A slurry solution was prepared by charging 36.0 g of an aqueous sodium solution, and the mixture was stirred at room temperature under a nitrogen stream for 30 minutes.
A 1.2% aqueous sodium hydroxide solution was charged, and the mixture was further stirred at room temperature for 60 minutes under a nitrogen stream. 80 ℃ of slurry liquid
And stirred at 80 ° C. for 2 hours to perform sulfonation. After completion of the reaction, the reaction solution was cooled to 60 ° C., neutralized with acetic acid, and the product was separated by filtration. The product was treated with 80% acetone (water 20
%) 3 times with 500 g and then twice with 500 g of acetone, dried under reduced pressure at 70 ° C. for 24 hours, and 8.9 g of a water-soluble alkyl-substituted polysaccharide derivative (6) substituted with a palmityl glyceryl ether group and a sulfoethyl group. I got

The degree of substitution of the palmityl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (6) was 0.060 and the degree of substitution of the sulfoethyl group was 0.35. The ratio of the number of the partial substituents (b) was 60: 350.

Production Example 7 (1) A weight average molecular weight of about 40 was added to a 1000 ml glass separable reaction vessel equipped with a stirrer, thermometer and cooling tube.
Then, 50 g of methyl cellulose (Metroose SM-800, manufactured by Shin-Etsu Chemical Co., Ltd.) having a degree of substitution of methyl group of 1.8, 400 g of isopropyl alcohol and 4.5 g of a 48% aqueous sodium hydroxide solution were added, and the mixture was heated at room temperature for 30 minutes under a nitrogen atmosphere. Stirred. This is followed by stearyl glycidyl ether6.
0 g was added, and the mixture was reacted at 80 ° C. for 8 hours to perform hydrophobization. After the completion of the hydrophobization reaction, the reaction solution was neutralized with acetic acid, and the reaction product was separated by filtration. 500 g of 80% acetone as a reaction product
And twice with 500 g of acetone, and dried under reduced pressure at 70 ° C. for one day to obtain 48.5 g of hydrophobized methyl cellulose.

(2) In a 500 ml glass separable reaction vessel equipped with a stirrer, thermometer and cooling tube, 10.0 g of the hydrophobized methylcellulose obtained in (1), 80.0 g of isopropyl alcohol and 48% hydroxide A slurry liquid was prepared by charging 0.33 g of a sodium aqueous solution, and the mixture was stirred at room temperature for 30 minutes under a nitrogen stream. 3-Chloro-2 was added to the reaction mixture.
-7.7 g of sodium hydroxypropanesulfonate,
After adding a mixed solution consisting of 3.2 g of a 48% aqueous sodium hydroxide solution and 20.0 g of water, sulfonation was performed at 50 ° C. for 8 hours. After completion of the reaction, the reaction solution was neutralized with acetic acid, and the product was separated by filtration. The product was treated with 80% acetone (water 20
%) Three times with 500 g and then twice with 500 g of acetone, dried under reduced pressure at 70 ° C. for one day, and then water-soluble alkyl-substituted polysaccharide derivative (7) substituted with stearyl glyceryl ether group and sulfo-2-hydroxypropyl group. ) 8.3
g was obtained.

The degree of substitution of the stearyl glyceryl ether group of the resulting water-soluble alkyl-substituted polysaccharide derivative (7) was 0.027, the degree of substitution of the sulfo-2-hydroxypropyl group was 0.15, and the hydrophobic moiety ( The ratio between the number of a) and the number of the hydrophilic group substituent (b) was 27: 150.

Production Example 8 10.0 g of the hydrophobized methylcellulose obtained in Production Example 7 (1), 160 g of isopropyl alcohol and 25% vinyl were placed in a 500 ml glass separable reaction vessel equipped with a stirrer, a thermometer and a condenser. A slurry liquid was prepared by charging 21.6 g of an aqueous sodium sulfonate solution, and the mixture was stirred at room temperature under a nitrogen stream for 30 minutes. Then, 1.5 g of a 48% aqueous sodium hydroxide solution was charged, and further stirred at room temperature under a nitrogen stream.
Stirred for minutes. The slurry was heated to 80 ° C. and stirred at 80 ° C. for 2 hours to perform sulfonation. After completion of the reaction, the reaction solution was cooled to 60 ° C., neutralized with acetic acid, and the product was separated by filtration.
The product was washed three times with 500 g of 80% acetone (20% water),
Next, the mixture was washed twice with 500 g of acetone and dried under reduced pressure at 70 ° C. for one day to obtain 9.6 g of a water-soluble alkyl-substituted polysaccharide derivative (8) substituted with a stearyl glyceryl ether group and a sulfoethyl group.

The degree of substitution of the stearyl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (8) was 0.027, the degree of substitution of the sulfoethyl group was 0.17, and the hydrophobic part substituent (a) and the hydrophilic part were The ratio of the number of the substituents (b) was 27: 170.

Production Example 9 16.2 g of cellulose powder (manufactured by Merck), 250 g of tert-butyl alcohol and a 25% aqueous solution of sodium vinyl sulfonate were placed in a 500-ml glass separable reaction vessel equipped with a stirrer, a thermometer and a cooling tube. A slurry liquid was prepared by adding 52.0 g, and the mixture was stirred at room temperature for 30 minutes under a nitrogen stream. Further, 8.0 g of powdered sodium hydroxide was added, and the mixture was stirred at room temperature for 60 minutes. The reaction temperature was raised to 80 ° C., and the mixture was further stirred at 80 ° C. for 2 hours to perform sulfonation. After cooling the reaction solution to 60 ° C., 21.0 g of water was added,
Further, 3.2 g of stearyl glycidyl ether was added, and 8
The temperature was raised to 0 ° C., and the mixture was stirred at 80 ° C. for 8 hours to perform hydrophobization. After the completion of the reaction, the reaction solution was cooled to 60 ° C., acetic acid was added to neutralize excess alkali, and then a cake was obtained by filtration. The cake obtained is 80% acetone (water 20%)
After washing five times with 500 g and then twice with 500 g of acetone, the resultant was dried under reduced pressure at 70 ° C. for one day to obtain 10.3 g of a water-soluble alkyl-substituted polysaccharide derivative (9) substituted with a stearyl glyceryl ether group and a sulfoethyl group. .

In the obtained water-soluble alkyl-substituted polysaccharide derivative (9), the degree of substitution of the stearyl glyceryl ether group was 0.025, the degree of substitution of the sulfoethyl group was 0.53, and the hydrophobic part (a) and the hydrophilic part were substituted. The ratio of the number of the substituents (b) was 25: 530.

Production Example 10 A reaction was carried out in the same manner as in Production Example 9 except that the amount of stearyl glycidyl ether was changed to 6.4 g, and a water-soluble alkyl-substituted polysaccharide derivative (10) substituted with a stearyl glyceryl ether group and a sulfoethyl group was prepared. ) Got.

The degree of substitution of the stearyl glyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (10) was 0.049, the degree of substitution of the sulfoethyl group was 0.53, and the hydrophobic part substituent (a) and the hydrophilic part were substituted. The ratio of the number of the substituents (b) was 49: 530.

Production Example 11 (1) A 1000 ml glass separable reaction vessel equipped with a stirrer, a thermometer and a condenser was charged with a weight average molecular weight of about 15
50,000 g of hydroxyethyl cellulose (HEC-QP100M, manufactured by Union Carbide) having a substitution degree of hydroxyethyl group of 1.8, 400 g of 88% isopropyl alcohol, and 3 g of a 48% sodium hydroxide aqueous solution were added to prepare a slurry liquid. The mixture was stirred at room temperature for 30 minutes under an atmosphere. Add octadecyl glycidyl ether 1.5
g was added and the mixture was reacted at 80 ° C. for 7 hours to effect hydrophobicization.
After completion of the hydrophobization reaction, the reaction solution was neutralized with hydrochloric acid, and the reaction product was filtered. The reaction product was treated with 500 g of 80% acetone.
And twice with 500 g of acetone, and dried under reduced pressure at 70 ° C. for one day to obtain 44.3 g of a hydrophobized hydroxyethylcellulose derivative.

(2) The hydrophobized hydroxyethylcellulose derivative obtained in (1) was placed in a 500-ml separable glass reaction vessel equipped with a stirrer, thermometer and cooling tube.
A slurry was prepared by charging 0 g, 80.0 g of isopropyl alcohol and 0.33 g of a 48% aqueous sodium hydroxide solution, and stirred at room temperature for 30 minutes under a nitrogen stream. 12.8 g of sodium 3-chloro-2-hydroxypropanesulfonate and 5.4 g of a 48% aqueous sodium hydroxide solution were added to the reaction solution.
And 20.0 g of water, and sulfonated at 50 ° C. for 8 hours. After completion of the reaction, the reaction solution was neutralized with hydrochloric acid, and the product was filtered. The product was washed 3 times with 500 g of 80% acetone (20% water) and then 2 times with 600 g of acetone.
After washing twice, it was dried under reduced pressure at 70 ° C. for one day and night to obtain 7.5 g of a water-soluble alkyl-substituted polysaccharide derivative (11) substituted with an octadecylglyceryl ether group and a 3-sulfo-2-hydroxypropyl group.

The degree of substitution of the octadecylglyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (11) was 0.007, the degree of substitution of the 3-sulfo-2-hydroxypropyl group was 0.31, and the substitution with the hydrophobic part was carried out. The ratio of the number of the group (a) to the number of the hydrophilic moiety substituent (b) was 7: 310.

Production Example 12 (1) A 1000 ml glass separable reaction vessel equipped with a stirrer, a thermometer and a condenser was charged with a weight average molecular weight of about 15
50,000 g of hydroxyethyl cellulose (HEC-QP100M, manufactured by Union Carbide) having a substitution degree of hydroxyethyl group of 1.8, 400 g of 88% isopropyl alcohol, and 3 g of a 48% sodium hydroxide aqueous solution were added to prepare a slurry liquid. The mixture was stirred at room temperature for 30 minutes under an atmosphere. Add octadecyl glycidyl ether 1.0
g was added and the mixture was reacted at 80 ° C. for 7 hours to effect hydrophobicization.
After completion of the hydrophobization reaction, the reaction solution was neutralized with hydrochloric acid, and the reaction product was filtered. The reaction product was treated with 500 g of 80% acetone.
And then twice with 500 g of acetone, and dried under reduced pressure at 70 ° C. for 24 hours to obtain 45.1 g of a hydrophobized hydroxyethylcellulose derivative.

(2) The hydrophobized hydroxyethylcellulose derivative obtained in (1) was placed in a 500-ml separable glass reaction vessel equipped with a stirrer, thermometer and cooling tube.
A slurry was prepared by charging 0 g, 80.0 g of isopropyl alcohol and 0.33 g of a 48% aqueous sodium hydroxide solution, and the mixture was stirred at room temperature under a nitrogen stream for 30 minutes. 12.8 g of sodium 3-chloro-2-hydroxypropanesulfonate and 48% aqueous sodium hydroxide solution were added to the reaction solution.
A mixed solution consisting of 4 g and 20.0 g of water was added, and sulfonation was performed at 50 ° C. for 8 hours. After completion of the reaction, the reaction solution was neutralized with hydrochloric acid, and the product was filtered. The product was washed three times with 500 g of 80% acetone (20% water) and then with 500 g of acetone
After drying twice at 70 ° C. under reduced pressure for one day, 7.6 g of a water-soluble alkyl-substituted polysaccharide derivative (12) substituted with an octadecylglyceryl ether group and a 3-sulfo-2-hydroxypropyl group was obtained.

The degree of substitution of the octadecylglyceryl ether group of the obtained water-soluble alkyl-substituted polysaccharide derivative (12) was 0.004, the degree of substitution of the 3-sulfo-2-hydroxypropyl group was 0.31, and the substitution of the hydrophobic part was carried out. The ratio of the number of groups (a) to the number of hydrophilic moiety substituents (b) was 40: 310.

Examples 1 to 24 and Comparative Examples 1 to 7 Foundations having the compositions shown in Tables 1 to 3 were produced and evaluated for powder dispersibility, storage stability, usability and water resistance. The results are shown in Tables 1 to 3.

(Production method) Using a propeller stirrer, a water-soluble alkyl-substituted polysaccharide derivative is dissolved in purified water at room temperature, and then another aqueous phase component is added and mixed. Further, a powder component is added and strongly dispersed using a disper. The mixture was transferred to an Ajihomo mixer, the oil phase component was slowly added while stirring at 50 ° C. at high speed, and the mixture was stirred at high speed for 30 minutes to obtain a foundation.

(Evaluation method) (1) Powder dispersibility: Each foundation was filled in a glass bottle containing 50 ml, and the appearance was visually judged according to the following criteria. ◎: good. ：: The surface is slightly uneven. Δ: There is unevenness on the surface. ×: Sedimentation of powder was observed within 1 hour.

(2) Storage stability: The powder dispersion was evaluated and stored at 40 ° C. for one month, and the powder dispersion was evaluated in the same manner.

(3) Feeling of use: Ten specialized panelists made sensory evaluations of “freshness” and “no stickiness” when each foundation was actually used, and were judged according to the following criteria. ：: 7 or more evaluated good. Δ: 4 to 6 persons evaluated it as good. ×: Three or less evaluated as good.

(4) Water resistance: The contact angle with respect to water was measured by the method described above, and evaluated according to the following criteria. A: Contact angle of 80 degrees or more. ：: contact angle 60 to 80 degrees. Δ: contact angle 40 to 60 degrees. X: Contact angle less than 40 degrees.

[0081]

[Table 1]

[0082]

[Table 2]

[0083]

[Table 3]

As is clear from the results shown in Tables 1 to 3, all of the foundations of the present invention have excellent powder dispersibility and dispersion stability, a good feeling in use, and excellent water resistance. Was something. In particular, when the hydrophobized powder was used as the powder, the powder had higher water resistance. In contrast, when the water-soluble alkyl-substituted polysaccharide derivative was not used (Comparative Example 1), the dispersibility of the powder was poor, and when the dispersibility was improved by blending a hydrophilic surfactant at a high concentration (Comparative Example 1). In (2) and (3), the dispersibility of the powder was improved, but the feeling of use and the water resistance were lowered. Also,
When a water-soluble polymer conventionally known as a water thickener is used (Comparative Examples 4 to 7), the dispersibility and dispersion stability of the powder are low, and especially, In the case where the content was increased, the feeling of use and the water resistance were lowered.

Example 25 (Brush pen type eyeliner) A brush pen type eyeliner having the following composition was produced.

TABLE 4 (Components) (% by weight) Carbon black 5.0 Polyoxyethylene (10) dodecyl ether 2.0 1,3-butylene glycol 5.0 Water-soluble alkyl-substituted polysaccharide derivative (NATROSOL PLUS 330, Aqualon Company) 0.1 Methylparaben 0.3 Purified water 87.6 Total 100.0

(Production method) (1) After dissolving an activator and a humectant in a part of purified water,
The pigment is added and pulverized by a roll mill. (2) To the obtained mixture, a solution obtained by stirring and dissolving other components in the remaining purified water was added and diluted to obtain an eyeliner.

The obtained eyeliner had a stable dispersion of the pigment, little change in viscosity upon storage at 50 ° C. over time, good feeling in use, and excellent water resistance.

Example 26 (Film-type eyeliner) A film-type eyeliner having the following composition was produced.

Table 5 (Components) (% by weight) Black iron oxide 10.0 Acrylic acid / acrylic acid amide / ethyl acrylate copolymer 2.5 Ethanol 5.0 2-Amino-2-methyl-1-propanol Reference Signs List 1 polyoxyethylene sorbitan monooleate 1.0 glycerin 10.0 methyl paraben 0.2 water-soluble alkyl-substituted polysaccharide derivative (Production Example 12) 0.4 purified water 70.8 total 100.0

(Production method) (1) Pigment is added to an activator and a humectant and pulverized by a roll mill or the like. (2) Acrylic acid / acrylic amide / ethyl acrylate copolymer is dissolved in ethanol, and 2-amino-2-methyl-1-propanol is added. (3) Other components were mixed and dissolved, (1) and (2) were added, and the mixture was uniformly dispersed with a disper to obtain an eyeliner.

The obtained eyeliner had a pigment dispersed stably, had little change in viscosity when stored at 50 ° C. over time, had a good feeling in use, and was excellent in water resistance.

Example 27 (Aqueous nail enamel) An aqueous nail enamel having the following composition was produced.

[Table 6] (Components) (% by weight) Alkyl acrylate / styrene copolymer emulsion (solid content: 45%) 70.0 Ethanol 5.0 Bentonite 0.5 Water-soluble alkyl-substituted polysaccharide derivative (JP-A-3-24001) No. 1, modified cellulose ether described in Example 1) 0.5 diethylene glycol monoethyl ether 5.0 polyoxyethylene sorbitan monooleate 1.0 red No. 202 0.3 red No. 220 0.4 yellow iron oxide 0.2 oxidation Titanium 0.7 Mica Titanium 1.0 Ethyl paraben 0.2 Defoamer 0.1 Purified water 15.1 Total 100.0

(Production method) (1) The pigment, titanium mica, pigment dispersant and purified water are uniformly dispersed with a disper or a homomixer. (2) Bentonite is met with ethanol, and a water-soluble alkyl-substituted polysaccharide derivative and purified water are added and uniformly dispersed. (3) A pigment dispersion (1) and a thickener mixture (2), purified water, a film forming aid, a preservative, and an antifoaming agent are added to the polymer emulsion, and the mixture is uniformly stirred and mixed, followed by defoaming. , To obtain nail enamel.

The obtained aqueous nail enamel is one in which the pigment is stably dispersed, sedimentation does not easily occur, the change in viscosity upon storage at 50 ° C. over time is small, the usability is good, and the water resistance is excellent. Was.

Example 28 (Eye shadow) An eye shadow having the following composition was produced.

(Component) (% by weight) Powder: silicone-coated mica 10.0 Titanium mica 5.0 pigment 3.0 Oil phase: stearic acid 3.0 isopropyl myristate 3.0 dimethylpolysiloxane (6cs) 10.0 Propylene glycol monolaurate 3.0 Dibutylhydroxytoluene 0.02 Aqueous phase: Purified water Balance 1,3-butylene glycol 5.0 Water-soluble alkyl-substituted polysaccharide derivative (JP-A-3-24001, described in Example 2) Modified cellulose ether) 0.3 ethyl paraben 0.2 disodium edetate 0.1 total 100.0

(Manufacturing method) (1) The powder portion is uniformly mixed. (2) Heat and dissolve the oil phase at 70 ° C. (3) The water-soluble alkyl-substituted polysaccharide derivative is dissolved in purified water, and the remaining aqueous phase component is heated and dissolved at 70 ° C. (4) The powder portion of (1) is added to the aqueous phase portion of (3), mixed uniformly, and highly dispersed by a disper. (5) The oil phase of (2) was added to the pigment dispersion of (4) with stirring, uniformly dispersed and mixed with a homomixer, and cooled to room temperature with stirring to obtain an eye shadow.

The obtained eyeshadow has a stable dispersion of powder, no sedimentation and separation of the pigment, a small change in viscosity when stored at 50 ° C. over time, a good feeling in use, and excellent water resistance. there were.

Example 29 (lipstick) A lipstick having the following composition was produced.

Table 8 (Components) (% by weight) Celesin 4.0 Candelilla wax 7.0 Carnauba wax 2.0 Dimethylpolysiloxane (10cs) 20.0 Decamethylcyclopentasiloxane 10.0 Octyldodecyl myristate 39.0 Poly Oxyethylene (20) polyoxypropylene (2) cetyl ether 1.0 Water-soluble alkyl-substituted polysaccharide derivative (NATROSOL PLUS 330, manufactured by Aqualon Company) 0.3 Purified water 7.0 Glycerin 2.0 Propylene glycol 1.0 BHT Appropriate amount Silicone 2% treated titanium oxide 5.0 Red 201 No. 0.4 Red 202 No. 1.0 Lauroyl lysine 2% treated Bengala 0.3 Total 100.0

(Production method) (1) Color pigment (titanium oxide, Red No. 201, Red 20)
No. 2 / Bengala), add a part of dimethylpolysiloxane (10cs) and mix uniformly with a three-roll mill. (2) A water-soluble alkyl-substituted polysaccharide derivative is dissolved in a part of purified water, and glycerin and propylene glycol are further dissolved by heating. (3) After other components are mixed and uniformly dissolved, (1) and (2) are added and dispersed and mixed by a homomixer. Thereafter, purified water was added, emulsified and dispersed by a homomixer, poured into a mold, cooled, and molded into a stick shape to obtain a lipstick.

The lipstick obtained did not cause perspiration during storage at 40 ° C. over time, had a small change in breaking strength, had good pigment dispersibility and feeling of use, and was excellent in water resistance.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI A61K 7/043 A61K 7/043 (72) Inventor Tomohito Kitsuki 1334 Minato, Wakayama-shi, Wakayama Pref.

Claims (9)

[Claims] 1. The following components (A), (B) and (C): (A) a water-soluble alkyl-substituted polysaccharide derivative, (B) a powder,
(C) Make-up cosmetics containing water. 2. The makeup cosmetic according to claim 1, wherein the component (B) is a hydrophobized powder. 3. The component (A) is characterized in that some or all of the hydrogen atoms of the hydroxyl group of the polysaccharide or a derivative thereof have the following groups (a) and (b): (a) a straight chain having 8 to 40 carbon atoms; A substituent having a hydrophobic part selected from a chain or branched alkyl group, alkenyl group, arylalkyl group, alkylaryl group and a mixture thereof; (b) an ionic or nonionic group which may be substituted by a hydroxyl group A substituent having a hydrophilic part, and the ratio of the number of the substituents (a) to the number of the substituents (b) is 1:
The makeup cosmetic according to claim 1 or 2, which is a water-soluble alkyl-substituted polysaccharide derivative having a ratio of 1000 to 100: 1. 4. The method according to claim 1, wherein the substituent (a) of the component (A) has 1 carbon atom.
The makeup cosmetic according to claim 3, which is an alkyl glyceryl ether group having a linear or branched alkyl group having 0 to 40 and / or an alkenyl glyceryl ether group having a linear or branched alkenyl group having 10 to 40 carbon atoms. . 5. The make-up cosmetic according to claim 3, wherein the substituent (b) of the component (A) is a sulfoalkyl group having 1 to 5 carbon atoms which may be substituted by a hydroxyl group or a salt thereof. Fees. 6. The substituent (b) of the component (A) is a 2-sulfoethyl group, a 3-sulfopropyl group, or a 3-sulfo-2- group.
The makeup cosmetic according to claim 3 or 4, wherein the cosmetic is one or more selected from a hydroxypropyl group and a 2-sulfo-1- (hydroxymethyl) ethyl group. 7. The polysaccharide of component (A) or a derivative thereof,
Cellulose, guar gum, starch, hydroxyethyl cellulose, hydroxyethyl guar gum, hydroxyethyl starch, methyl cellulose, methyl guar gum, methyl starch, ethyl cellulose, ethyl guar gum, ethyl starch, hydroxypropyl cellulose, hydroxypropyl guar gum, hydroxypropyl starch, hydroxyethyl methyl cellulose, hydroxy 4. It is selected from ethyl methyl guar gum, hydroxyethyl methyl starch, hydroxypropyl methyl cellulose, hydroxypropyl methyl guar gum and hydroxypropyl methyl starch.
The makeup cosmetic according to any one of claims 6 to 10. 8. The makeup cosmetic according to claim 1, comprising 0.01 to 10% by weight of the component (A) and 1 to 50% by weight of the component (B). 9. The makeup cosmetic according to claim 1, wherein a contact angle of the makeup coating film with water is 60 degrees or more.