JP2018070669A - Gel composition and method for producing the same, and gel composition shrinkage improving agent and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for obtaining a gel composition that shrinks into a similar shape with the volatilization of a solvent or an active ingredient, and makes it easy to visually recognize the end point of its effect.SOLUTION: An alcoholic gel composition contains following components (A)-(D): (A) gelator, (B) glycerol, (C) alcohol and (D) water. The component (A) gelator contains following component (a1) or (a2): (a1) hydroxypropylated guar gum; (a2) hydroxyalkyl cellulose and hydroxyalkyl alkyl cellulose.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a gel-like composition, and more specifically, when a gel shrinks as a volatile substance volatilizes, it shrinks to a similar shape while maintaining a smooth surface state without causing cloudiness or voids. Therefore, the present invention relates to an alcohol-based gel-like composition that can easily recognize the end point of use and has an excellent appearance.

Conventionally, in various fields, gel-like compositions obtained by using water or alcohol as a solvent and gelling with a gelling agent have been widely used. By using alcohol as the main solvent, the freezing point is lower than that of gels using water as the main solvent, and an antifreeze effect in a low-temperature environment can be obtained, so it can also be used in freezers and cold districts. A gel-like composition.
Moreover, it is useful also when using alcohol itself as an active ingredient, or using it for the environment which dislikes water. However, there are few reports of practical techniques for gelling alcohol compared to water.

For example, water and a lower alcohol such as ethanol are used as the gelling agent dibenzylidene-D-
A gel-like fragrance gelled with sorbitol has been reported (Patent Document 1). However, this dibenzylidene-D-sorbitol has low solubility in ethanol at room temperature, and in order to produce a gel, it is necessary to heat the ethanol to around 80 ° C., which is its boiling point, to dissolve the dibenzylidene-D-sorbitol. As a result, a large amount of ethanol volatilized, causing dangers such as ignition and explosion. In addition, volatile substances such as fragrances are denatured or volatilized by heating during the gel preparation process, and it is difficult to maintain a predetermined blending amount in the gel composition or the fragrance changes. There was a risk of doing so.

  As a method to obtain a lower alcohol gel while eliminating the above problems, by adding acid to a modified guar gum obtained by chemically modifying guar gum, which is a polysaccharide, it is easily elastic even at room temperature without heating. A technique for obtaining a gel having a thickness has been reported (Patent Document 2). However, one of the characteristics of volatile gel-like materials is that the end point of the effect can be easily grasped by shrinking from the shape of the gel at the start of use to a similar shape with the volatilization of the solvent and active ingredient. As a result, this gel did not shrink into a similar shape, and it was difficult to determine whether or not the active ingredient had disappeared.

  Further, an aqueous gel composition containing 0.1 to 5% by mass of a gelling agent such as gellan gum, 5 to 65% by mass of glycerin and an aqueous solvent is disclosed (Patent Document 3). However, since this gel composition shrinks only in the thickness direction while maintaining the surface shape, it is difficult to grasp the end point of use in the same manner.

  On the other hand, a gel composition in which a polyalkyl-modified silicone is blended with a specific copolymer has been disclosed in order to improve the releasability of the gel and to shrink the gel as a whole (Patent Document 4). ). However, since the copolymer is an alkylacrylamide-based special polymer, it is difficult to produce and generally obtain the copolymer. In addition, this gel composition is not actively used as a gel preparation for indoor use or in a car because unpolymerized acrylamide monomer may remain in the gel.

JP 60-41967 A JP 2002-212298 A JP 2012-67027 A JP 2006-131697 A

  The present invention has been made in view of the above circumstances, and it provides a technique for obtaining a gel-like composition that shrinks into a similar shape with the volatilization of a solvent and an active ingredient and can easily visually recognize the end point of the effect. Let it be an issue.

  The inventors of the present invention have repeatedly researched on the shrinkability of the gel, and while using a specific gelling agent and blending glycerin, with the volatilization of the solvent and active ingredient, The present invention was completed by finding that the shape contracts to a similar shape.

That is, the present invention provides the following components (A) to (D);
(A) Gelling agent (B) Glycerin (C) Alcohol (D) Water is included, and component (A) gelling agent is the following component (a1) or (a2);
(A1) Hydroxypropylated guar gum (a2) An alcohol-based gel composition containing hydroxyalkyl cellulose and hydroxyalkylalkyl cellulose.

  Moreover, this invention is a manufacturing method of the said alcohol-type gel-like composition characterized by adding 1-30 degreeC component (D) to the said mixture, after mixing the said component (A)-(C). is there.

  Moreover, this invention is the shrinkage | contraction improvement agent of the alcohol-type gel-like composition which contains glycerol as an active ingredient.

  The alcohol-based gel composition of the present invention gradually shrinks to a similar shape while maintaining the three-dimensional shape of the gel at the start of use as the solvent and active ingredients are volatilized. Can be visually recognized. Moreover, since it shrinks, maintaining a smooth surface state, without producing cloudiness or a space | gap, the beauty | look is maintained from the initial stage of use to the last stage. Furthermore, it is excellent in stability without causing water separation in a wide temperature range.

It is an external appearance photograph of the gel-like composition of this invention product 1 after 14 days volatilization in 25 degreeC environment. It is an external appearance photograph of the gel-like composition of this invention product 2 after 14 days volatilization in 25 degreeC environment. It is an external appearance photograph of the gel-like composition of this invention product 3 after 14 days volatilization in 25 degreeC environment. It is an external appearance photograph of the gel composition of the comparative product 1 after volatilization for 14 days in 25 degreeC environment. It is an external appearance photograph of the gel composition of the comparative product 2 after 14 days volatilization in 25 degreeC environment.

  The alcohol-based gel-like composition of the present invention (hereinafter sometimes referred to as “gel-like composition”) means a gel-like appearance using a solvent containing alcohol. In addition, “gel” means a state in which the fluidity is lost due to high viscosity and the appearance is generally called gel. It means that the distance from the position of the top end of the gel surface after 5 minutes have passed since the gel was laid down side by side with the beaker from 0 mm to 45 mm.

  In the gel composition of the present invention, (a1) hydroxypropylated guar gum is used as the component (A) gelling agent, or (a2) hydroxyalkylcellulose and hydroxyalkylalkylcellulose are used in combination.

  (A1) Hydroxypropylated guar gum is obtained by propyl etherification of a hydroxyl group present in conventional guar gum using propylene oxide. As the hydroxypropyl etherified guar gum, it is preferable to use one that is 0.5 or more, preferably 1.0 or more hydroxypropyl etherified per saccharide unit. The content of hydroxypropylated guar gum is preferably 0.1 to 30% by mass (hereinafter referred to as “%”), more preferably 1 to 20%, and particularly preferably 3 to 15% with respect to the total composition. %.

Among (a2), hydroxyalkyl cellulose (hereinafter sometimes abbreviated as “HAC”) is a nonionic water-soluble cellulose ether obtained by treating cellulose with caustic soda and then reacting with alkylene oxide. By substituting a part of the hydrogen atom of the hydroxyl group of cellulose with a hydroxyalkyl group, the hydrogen bond disappears and water-solubility is achieved. Specific examples include hydroxy C _2-4 alkyl celluloses such as hydroxyethyl cellulose and hydroxypropyl cellulose. Among these, hydroxyethyl cellulose (hereinafter sometimes abbreviated as “HEC”) is preferable. HEC is commercially available, for example, as “HEC Daicel” (manufactured by Daicel Finechem Co., Ltd.), and such commercially available products can also be used.

  The degree of substitution of HAC, that is, the average number of hydroxyl groups substituted with hydroxyalkyl groups present per cellulose glucose ring unit is preferably in the range of 0.5 to 2.0, more preferably 0.8 to 1.5. It is. The number of substituted moles, that is, the average number of moles of hydroxyalkyl groups added per glucose ring unit of cellulose is preferably in the range of 1.0 to 3.0, more preferably 1.5 to 2.8.

  Moreover, as for the HAC, the viscosity of the aqueous solution when dissolved in water is preferably in the range of 20 to 100,000 mPa · s as a 2% aqueous solution, and more preferably in the range of 80 to 100,000 mPa · s. The viscosity is a value measured at 25 ° C. using a B-type viscometer.

  The HAC content is preferably 0.1 to 10%, more preferably 0.5 to 5%, based on the total composition.

On the other hand, among (a2), hydroxyalkylalkylcellulose (hereinafter sometimes abbreviated as “HAAC”) is obtained by treating cellulose with caustic soda and then reacting with an etherifying agent such as alkyl chloride or alkylene oxide. It is a nonionic water-soluble cellulose ether, which is made water-soluble by eliminating hydrogen bonds by substituting a part of hydrogen atoms of the hydroxyl group of cellulose with an alkyl group or a hydroxyalkyl group. Specific examples include hydroxy C _2-4 alkyl C _1-4 alkyl cellulose such as hydroxyethyl methyl cellulose, hydroxyethyl ethyl cellulose, and hydroxypropyl methyl cellulose. Among these, hydroxypropyl methylcellulose (hereinafter sometimes abbreviated as “HPMC”) is preferable. HPMC is commercially available, for example, as “Metroze” (manufactured by Shin-Etsu Chemical Co., Ltd.), and such commercially available products can also be used.

  The degree of substitution of HAAC, that is, the average number of hydroxyl groups substituted with alkoxyl groups present per cellulose glucose ring unit is preferably in the range of 1.0 to 2.5, more preferably 1.5 to 2.5. is there. The number of substituted moles, that is, the average number of moles of hydroxyalkoxy groups added per glucose ring unit of cellulose is preferably in the range of 0.05 to 0.40, more preferably 0.10 to 0.30.

  HAAC preferably has a 2% aqueous solution viscosity in the range of 300 to 100,000 mPa · s, more preferably 3000 to 40000 mPa · s, when dissolved in water. The viscosity is a value measured at 20 ° C. using a B-type viscometer.

  The HAAC content is preferably 0.1 to 10%, more preferably 0.5 to 5%, based on the total composition.

  The content of component (B) glycerin is preferably 0.1 to 10%, more preferably 0.5 to 5% with respect to the total composition.

  As the component (C) alcohol, a lower alcohol having 5 or less carbon atoms or an aromatic alcohol represented by the following formula (1) is preferably used.

(Where n represents a natural number of 1 to 3)

  Specifically, methanol, ethanol, propanol, isopropanol, n-butanol, isobutanol, sec-butanol, tert-butanol, 2-methyl-1-propanol, 2-methyl-2-propanol, pentanol, phenoxyethanol, etc. A monoalcohol is mentioned. The content of the component (B) alcohol is preferably 50% or more, more preferably 60 to 85%, and particularly preferably 60 to 80% with respect to the total composition.

  The content of component (D) water is preferably 10 to 30%, more preferably 10 to 20%, and particularly preferably 10 to 20% with respect to the total composition.

  By adding the component (E) silicone to the gel composition of the present invention, the releasability of the gel from the container is improved, the decrease in the gel can be visually confirmed, and occurs on the gel surface with volatilization. The effect of preventing whitening derived from the obtained gelling agent is further improved.

  Component (E) silicone is not particularly limited, and examples thereof include hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, 3,3-diphenylpolysiloxane, Polyoxyethylenemethylpolysiloxane copolymer, poly (oxyethylene-oxypropylene) methylpolysiloxane copolymer, laurylmethicone copolyol, aminomethylaminopropylsiloxane dimethylsiloxane copolymer, hexamethylcyclotrisiloxane, octamethylcyclo Tetrasiloxane, decamethylcyclopentasiloxane, 1,3,5,7-tetramethyltetravinylcyclotetrasiloxane, 1,3,5,7,9-pentamethylpentavinylcyclo Ntasiloxane, 1,3,5,7,9-pentamethylpentaphenylcyclopentasiloxane, trimethylpentaphenyltrisiloxane, methylphenylsilicone, diphenylsiloxyphenylmethicone, caprylylmethicone, phenyltrimethicone, diphenylsiloxyphenyltrimethicone, Examples thereof include carbinol-modified silicone oil, polyglyceryl-3disiloxane dimethicone, polyether-modified silicone oil, and the like, and one or more of these can be used.

  As the component (E) silicone, any of high volatile silicone, low volatile (non-volatile) silicone, and non-volatile (non-volatile) silicone can be used, but non-volatile or non-volatile silicone. (The vapor pressure at 20 ° C. is preferably 100 Pa or less). Moreover, it is preferable to use silicone which dissolves in a mixed solvent of (C) alcohol and (D) water. Suitable silicones satisfying such conditions include, for example, caprylyl methicone, polyglycer-3-disiloxane dimethicone, bis (hydroxyethoxypropyl) dimethicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone and the like.

  The content of the component (E) is preferably from 0.1 to 10%, more preferably from 0.5 to 5%, based on the entire composition.

  In the alcohol-based gel-like composition of the present invention, the component (B) glycerin and (E) silicone act as a shrinkage improving agent that contracts into a similar shape while maintaining the three-dimensional shape of the gel at the start of use. When mix | blending a component (E), it is preferable that the sum total of content of a component (B) and (E) is 0.1 to 10% with respect to the whole composition, More preferably, it is 1 to 5%. . If the amount is less than 0.1%, the shrinkage improvement effect may not be obtained. If the amount is more than 10%, the amount of the residue relative to the remaining amount of the active ingredient increases, and the end point may not be clear. In addition, the mass ratio of components (B) and (E) is preferably 1:10 to 10: 1, and more preferably 1: 2 to 2: 1.

  A gel composition having lower fluidity can be obtained by adding an acid or an alkali agent to the components (C) and (D), which are solvent components, to cause gelation. Examples of the acid include citric acid, malic acid, succinic acid, acetic acid, hydrochloric acid, hypophosphorous acid, hyposulfite, sulfurous acid, sulfuric acid, nitrous acid, nitric acid, formic acid and the like. Examples of the alkaline agent include carbonates such as sodium bicarbonate, sesquicarbonate, sodium carbonate, inorganic hydroxides such as sodium hydroxide, potassium hydroxide, and calcium hydroxide, organic alkalis such as alkanolamine, methylamine, and ethylamine, Examples thereof include alkali metal salts of organic acids such as sodium acetate and sodium citrate, among which sodium sesquicarbonate and potassium hydroxide are preferable.

  Moreover, you may add active ingredients, such as a fragrance | flavor component, a deodorizing component, an insecticide / insecticide component, and a bactericidal component, in the said solvent component (C) and (D).

  There are no particular restrictions on the active ingredient, but examples include aromatic components such as fragrances and essential oils, aluminum sulfate, ammonium chloride, alum, copper sulfate, zinc sulfide, zinc stearate, aluminum stearate, zinc oxide oxide, and flavonoids. Compound, catechin, polyphenol, cyclodextrin, zeolite, layered zinc aluminosilicate, activated carbon, Bincho charcoal and other deodorant ingredients, empentrin, transfluthrin, allethrin, phenothrin, metfluthrin, profluthrin, paradichlorobenzene, naphthalene, camphor, 2-phenoxyethanol , Insecticide / insecticide / bactericidal components such as pepper powder, burdock powder, cuminaldehyde, 2-isobutyl-3-methoxypyrazine, benzalkonium chloride, alkyltrimethylammonium chloride, etc.

  Since the selectivity of an active ingredient spreads in the gel-like composition of the present invention, 3-methoxy-3-methyl-1-butanol can be further used. The content of 3-methoxy-3-methyl-1-butanol is preferably 0.1 to 10%, more preferably 1 to 5% with respect to the total composition.

  Furthermore, if necessary, an emulsifying / dispersing component such as a surfactant, a pH adjusting component such as an acid / alkali, a coloring component such as a synthetic coloring matter or a natural coloring matter, or the like may be added.

  In addition, since hydroxypropylated guar gum, HAC, and HAAC are nonionic compounds, they have high selectivity with respect to surfactants to be added, volatile active ingredients, and the like. Further, since hydroxypropylated guar gum, HAC, and HAAC have a very low substrate odor, they are hardly affected even when a fragrance is used, and can be used for a wide range of volatile active ingredients. Can be obtained. Furthermore, the gel-like composition containing the volatile active ingredient including a high concentration fragrance | flavor can be obtained, suppressing the addition amount of surfactant by surface active action which HAAC has. In addition, although content in particular of a fragrance | flavor does not have a restriction | limiting, Generally 0.1 to 30% is preferable with respect to the whole composition, and 1 to 20% is more preferable. Moreover, although content of surfactant is based also on the kind of the fragrance | flavor mix | blended, generally it is 1% or less with respect to 1% of fragrance | flavors, More preferably, it is 0.5% or less.

  In the preparation of the gel composition of the present invention, (a1) hydroxypropylated guar gum or (a2) HAC and HAAC and (B) glycerin are added and dispersed in component (C) alcohol, and then special heating or the like is performed. Without performing, it is carried out by adding (D) water at 1 ° C. to 30 ° C., preferably 1 ° C. to 20 ° C. at room temperature (about 25 ° C.), stirring and homogenizing. In this method, (C) alcohol, (a1) hydroxypropylated guar gum or (a2) HAC and HAAC, (B) glycerin is a highly fluid dispersion, By adding water, (a1) hydroxypropylated guar gum or (a2) HAC and HAAC dissolve in water and the entire composition gels.

  As described above, the gel-like composition of the present invention is a non-heated, high-concentration alcohol that is gelled by adding water using hydroxypropylated guar gum or HAC and HAAC which are easy to handle. Therefore, there is no risk of explosion or fire due to heating of alcohol, and an alcohol-based gel composition can be obtained safely and easily.

  Due to the above properties, the gel composition of the present invention can be advantageously used as a volatile fragrance, a deodorant, an insecticide / insecticide, a bactericide and the like. Since this gel composition shrinks to a similar shape while maintaining the three-dimensional shape of the gel at the start of use as the solvent and active ingredients are volatilized, the end point of efficacy can be easily visually confirmed. . Moreover, since it shrink | contracts, maintaining a smooth surface state, without producing white turbidity or a space | gap, the beauty | look is maintained from the initial stage of use to the last stage. Furthermore, it is excellent in stability without causing water separation in a wide temperature range. Therefore, it is suitably used as a volatilization type gel composition that volatilizes an active ingredient and exerts its effect.

  EXAMPLES Next, although an Example is given and this invention is demonstrated in more detail, this invention is not restrict | limited at all by these Examples.

Example 1
Preparation of gel composition and evaluation of physical properties:
According to the composition shown in Table 1, a gel composition was prepared at room temperature by the following method. About the obtained gel-like composition, the physical property was evaluated by the following evaluation criteria. The results are also shown in Table 1. Moreover, the photograph of the external appearance of the gel-like composition of this invention products 1-3 after volatilization for 14 days in a 25 degreeC environment is shown in FIGS. The products 1 to 3 of the present invention did not show water separation after 14 days of volatilization and had good stability.

[Production method]
In a plastic 100 ml beaker at room temperature, a suspension containing ingredients other than the ion-exchanged water shown in Table 1 above was stirred with a stirrer and gelled by adding ion-exchanged water at 20 ° C. A composition was obtained.

[Evaluation of physical properties of gel composition]
About the said gel-like composition, the physical property was evaluated by the following evaluation criteria.
<Shrinkage due to volatilization>
The following criteria evaluated the property of the residue of the gel after 14 days volatilization in 25 degreeC environment.
◎: The gel shrinks in a similar shape, leaving a uniform residue ○: The gel shrinks but slightly indefinite shape △: The gel shrinks, but the shape is undefined ×: The volume shrinkage rate is small and the shrinkage is difficult to understand < Gel surface whitening>
The surface state of the gel residue after 14 days volatilization was observed in a 25 ° C. environment and evaluated according to the following criteria.
○… It looks clean and even × ×… It looks like white powder and is dirty

Example 2
In accordance with the formulation shown in Table 2 below, a solution obtained by dispersing hydroxypropylated guar gum as a gelling agent and activated carbon, glycerin and / or silicone and 3-methyl-methoxy-1-butanol as an adsorbent in ethanol, After the B liquid dispersed in water was added and stirred, the container was filled to obtain a gel. The shrinkage due to volatilization was evaluated in the same manner as in Example 1. The results are also shown in Table 2. In addition, this invention products 4-6 did not see water separation after 14 days volatilization, and stability was favorable.

Since the gel composition of the present invention shrinks to a similar shape while maintaining the three-dimensional shape of the gel at the start of use as the solvent and active ingredient are volatilized, the end point of efficacy can be easily visually confirmed. it can. Moreover, since it shrink | contracts, maintaining a smooth surface state, without producing white turbidity or a space | gap, the beauty | look is maintained from the initial stage of use to the last stage. Furthermore, it is excellent in stability without causing water separation in a wide temperature range. Therefore, it can be used in applications such as fragrances, deodorants, insecticides / insecticides, and bactericides as volatilization-type gel compositions that volatilize active ingredients and exert their effects.

Claims (18)

The following components (A) to (D);
(A) Gelling agent (B) Glycerin (C) Alcohol (D) Water is included, and component (A) gelling agent is the following component (a1) or (a2);
(A1) Hydroxypropylated guar gum (a2) An alcohol-based gel composition containing hydroxyalkyl cellulose and hydroxyalkylalkyl cellulose.   The alcohol-based gel composition according to claim 1, further comprising a component (E) silicone.   Component (E) silicone comprises methylphenyl silicone, diphenylsiloxyphenyl methicone, caprylyl methicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, carbinol modified silicone oil, polyglyceryl-3 disiloxane dimethicone and polyether modified silicone oil The alcohol-based gel-like composition according to claim 2, which is one or more selected from the group.   The content of a component (B) is 0.1-10 mass%, The alcohol-type gel-like composition in any one of Claims 1-3. The component (A) contains the component (a2) hydroxyalkyl cellulose and hydroxyalkylalkyl cellulose, the hydroxyalkyl cellulose is hydroxy C _2-4 alkyl cellulose, and the hydroxyalkyl alkyl cellulose is hydroxy C _{2. It is -4} alkyl _C1-4 alkylcellulose, The alcohol-type gel-like composition in any one of Claims _1-4 . The alcohol-based gel composition according to claim 5, wherein the hydroxy C _2-4 alkyl cellulose is hydroxyethyl cellulose, and the hydroxy C _2-4 alkyl C _1-4 alkyl cellulose is hydroxypropylmethyl cellulose.   The alcohol-based gel composition according to claim 5 or 6, wherein the content of hydroxyalkyl cellulose is 0.1 to 10% by mass and the content of hydroxyalkyl alkyl cellulose is 0.1 to 10% by mass. Component (C) the alcohol is a lower alcohol having 5 or less carbon atoms or the following formula (1)
(Where n represents a natural number of 1 to 3)
The alcohol-based gel composition according to any one of claims 1 to 7, which is an aromatic alcohol represented by the formula:   The alcohol-based gel composition according to any one of claims 1 to 8, wherein the content of the component (D) water is 10 to 30% by mass. The following components (A) to (D);
(A) Gelling agent (B) Glycerin (C) Alcohol (D) Water is included, and component (A) gelling agent is the following component (a1) or (a2);
(A1) Hydroxypropylated guar gum (a2) A method for producing an alcohol-based gel composition containing hydroxyalkyl cellulose and hydroxyalkylalkyl cellulose, and after mixing components (A) to (C), A method for producing an alcohol-based gel-like composition, comprising adding a component (D) at 1 to 30 ° C.   A shrinkage improving agent for an alcohol-based gel composition containing glycerin as an active ingredient.   Furthermore, the shrinkage | contraction improvement agent of the alcohol type gel-like composition of Claim 11 containing silicone.   The silicone is selected from the group consisting of methylphenyl silicone, diphenylsiloxyphenyl methicone, caprylyl methicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, carbinol modified silicone oil, polyglyceryl-3 disiloxane dimethicone and polyether modified silicone oil. The shrinkage-improving agent for an alcoholic gel composition according to claim 12, wherein the shrinkage-improving agent is one or more. The alcohol-based gel composition contains the following component (a1) or (a2);
(A1) Hydroxypropylated guar gum (a2) Gelatinized using hydroxyalkylcellulose and hydroxyalkylalkylcellulose The shrinkage-improving agent for an alcoholic gel-like composition according to any one of claims 11 to 13 .   A method for improving shrinkage of an alcoholic gel composition, which comprises adding glycerin to an alcoholic gel composition.   The method for improving shrinkage of an alcohol-based gel composition according to claim 15, further comprising adding silicone.   The silicone is selected from the group consisting of methylphenyl silicone, diphenylsiloxyphenyl methicone, caprylyl methicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, carbinol modified silicone oil, polyglyceryl-3 disiloxane dimethicone and polyether modified silicone oil. The method for improving shrinkage of an alcohol-based gel composition according to claim 16, wherein the method is one type or two or more types. The alcohol-based gel composition contains the following component (a1) or (a2);
The method for improving shrinkage of an alcohol-based gel composition according to any one of claims 15 to 17, wherein (a1) hydroxypropylated guar gum (a2) is made into a gel using hydroxyalkylcellulose and hydroxyalkylalkylcellulose. .