Gel composition

Abstract

To provide a gel composition which prevents dripping from skin or hair during application, delivers a substantive feel during spreading, and yet has outstanding spreadability and exhibits outstanding absorption into the skin or hair after spreading.SOLUTION: The present invention provides a gel composition which contains component A: ammonium acryloyldimethyltaurate / VP copolymer, component B: biosaccharide gum-1, and component C: water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a gel composition, more particularly to a gel composition to be applied to the skin or hair. [Background technology]

[0002] Most of the cosmetics distributed on the market are in the form of liquid, emulsion, gel, cream, solid, etc. Among these various formulations, gel formulations, which do not drip from the skin or hair when applied compared to liquid or emulsion formulations, and spread easily on the skin or hair compared to cream formulations, are in demand from customers to a certain extent because of their excellent spreadability.

[0003] On the other hand, gel-type formulations have the disadvantages that it is difficult to achieve a rich feel when spreading compared to cream-type formulations, and they are less compatible with the skin and hair after spreading compared to liquid and emulsion-type formulations, and many users who prefer the feel of gel-type formulations have called for improvements to these shortcomings.

[0004] Various attempts have been made to improve the feeling of use of gel-type compositions (see, for example, Patent Documents 1 to 4). However, although these attempts have made it possible to improve or improve the defects of gel-type formulations, they have not been fully satisfactory in terms of further improving the feeling of use while maintaining the original functions of gel-type formulations. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-182841 A [Patent Document 2] JP 2020-183357 A [Patent Document 3] JP 2022-131261 A [Patent Document 4] JP 2023-069601 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above-mentioned conventional techniques. That is, an object of the present invention is to provide a gel composition which does not drip off the skin or hair when applied, has a rich feel when spread, has exceptionally excellent spreadability, and exhibits exceptionally excellent effects in terms of compatibility after spreading. [Means for solving the problem]

[0007] That is, the present invention provides a gel composition comprising the following components A, B, and C: Component A: (Acryloyldimethyltaurate ammonium / VP) copolymer Ingredient B: Biosaccharide Gum-1 Component C: Water

[0008] It is preferable that the mass ratio of the component A to the component B (component A / component B) falls within the range of 5-800.

[0009] It is preferable that the gel composition of the present invention further contains Component D below. Component D: (Acrylates / C10-30 alkyl acrylate) crosspolymer

[0010] It is preferable that the gel composition of the present invention further contains Component E below. Ingredient E: PPG-6 (PEG / PPG-8 / 5) glycerin Effect of the Invention

[0011] The gel composition of the present invention satisfies the above-mentioned constituent requirements, and thus has the effect of not dripping off the skin or hair when applied. Furthermore, the gel composition of the present invention has a rich feel when spread after application, and spreads, so to speak, and has the effect of being remarkably excellent in terms of spreadability, and has the effect of being remarkably excellent in terms of compatibility with the skin or hair after spreading. In the present invention, the "rich feel" refers to a feeling of adhesion, a certain weight or thickness when spread, and a feeling of a highly concentrated agent on the skin or hair. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The gel composition of the present invention contains the following component A, component B, and component C. Component A: (Acryloyldimethyltaurate ammonium / VP) copolymer Ingredient B: Biosaccharide Gum-1 Component C: Water

[0013] Each component used in the gel composition of the present invention will be described in detail below.

[0014] [Component A] The component A is an ammonium acryloyldimethyltaurate / VP copolymer. In the present invention, the use of the component A leads to a gel formulation, which prevents dripping on the skin or hair when applied, provides a rich feel when spread, and enables good spreadability.

[0015] Ammonium acryloyldimethyltaurate / VP copolymer is a copolymer of ammonium salt of acryloyldimethyltaurate and vinylpyrrolidone, and is a compound known by the INCI name "Ammonium Acryloyldimethyltaurate / VP Copolymer."

[0016] In addition, a commercially available product can be used as the above-mentioned component A. The commercially available product of component A is not particularly limited as long as it exhibits the desired effect, even if it is a single raw material or a mixed raw material with other components.

[0017] The content of component A in the gel composition of the present invention is not particularly limited as long as the desired effect is sufficiently exhibited, but in general, from the viewpoint of forming a gel formulation, suppressing dripping during application, and exhibiting a rich feel and good spreadability during spreading, the content is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, based on 100% by mass of the composition. Also, from the viewpoint of suppressing deterioration of the feeling of use such as stickiness, the content is preferably 1.6% by mass or less, more preferably 1.2% by mass or less, based on 100% by mass of the composition. That is, the content of component A in the gel composition of the present invention is preferably 0.3 to 1.6% by mass, more preferably 0.5 to 1.2% by mass. The content of component A is the amount converted into a pure content.

[0018] [Component B] The component B is biosaccharide gum-1. In the present invention, by using the component B and combining it with the component A, it is possible to maintain a rich feel when spreading, improve the spreadability, and also to exert an excellent effect on the compatibility after application. In addition, due to its excellent moisture retention ability, it is possible to impart excellent moisture when applied to the skin or hair.

[0019] Biosaccharide Gum-1 is a fermented polysaccharide obtained from sorbitol, and is a compound with the INCI name "Biosaccharide Gum-1."

[0020] In addition, a commercially available product can be used as the above-mentioned component B. The commercially available product of component B is not particularly limited as long as it exhibits the desired effect, even if it is a single raw material or a mixed raw material with other components.

[0021] The content of component B in the gel composition of the present invention is not particularly limited as long as the desired effect is sufficiently exhibited, but in general, from the viewpoint of improving the spreadability while maintaining a rich feel when spreading, and from the viewpoint of improving the compatibility after application, it is preferably 0.002% by mass or more, more preferably 0.003% by mass or more, in 100% by mass of the composition. Also, from the viewpoint of suppressing deterioration of the feeling of use, it is preferably 0.05% by mass or less, more preferably 0.03% by mass or less, in 100% by mass of the composition. That is, the content of component B in the gel composition of the present invention is preferably 0.002 to 0.05% by mass, more preferably 0.003 to 0.03% by mass. The content of component B is the amount converted into a pure content.

[0022] In the gel composition of the present invention, from the viewpoint of improving spreadability while maintaining a rich feel when spread, and from the viewpoint of improving compatibility after application, the mass content ratio of the content of the component A to the content of the component B (component A / component B) is preferably prepared in the range of 5 or more, and more preferably prepared in the range of 10 or more. Also, from the viewpoint of suppressing deterioration of the feeling of use, it is preferably prepared in the range of 800 or less, and more preferably prepared in the range of 600 or less. That is, in order to exhibit a significantly excellent feeling of use, the mass content ratio (component B / component A) is preferably prepared to satisfy the range of 5 to 800, and more preferably prepared to satisfy the range of 10 to 600.

[0023] [Component C] The component C is water. There are no particular limitations on the water used as long as it can be used as a cosmetic raw material, but purified water is usually used.

[0024] The content of component C in the gel composition of the present invention is not particularly limited as long as the desired effect is sufficiently exhibited, and can be appropriately adjusted depending on the content of other blended components. However, from the viewpoint of making it into a gel formulation, it is usually preferably 50 to 95 mass %, more preferably 60 to 90 mass %, of 100 mass % of the composition.

[0025] [Component D] The gel composition of the present invention preferably further contains an (acrylates / C10-30 alkyl acrylate) crosspolymer as component D. By using component D, dripping during application can be suppressed and the feel during spreading can be improved (excellent spreadability while maintaining a rich feel).

[0026] (Acrylates / C10-30 Alkyl Acrylate Crosspolymer) is a copolymer of one or more monomers consisting of acrylic acid, methacrylic acid, or their simple esters and alkyl acrylate (C10-30) crosslinked with sucrose allyl ether or pentaerythritol allyl ether, and is a compound known by the INCI name "Acrylates / C10-30 Alkyl Acrylate Crosspolymer."

[0027] In addition, a commercially available product can be used as the above-mentioned component D. The commercially available product of component D is not particularly limited as long as it exhibits the desired effect, even if it is a single raw material or a mixed raw material with other components.

[0028] The content of component D in the gel composition of the present invention is not particularly limited as long as the desired effect is sufficiently exhibited, but in general, from the viewpoint of suppressing dripping during application and exhibiting good spreadability while maintaining a rich feel during spreading, it is preferably 0.05% by mass or more, more preferably 0.08% by mass or more, based on 100% by mass of the composition. Also, from the viewpoint of suppressing deterioration of the feeling of use such as stickiness, it is preferably 0.2% by mass or less, more preferably 0.15% by mass or less, based on 100% by mass of the composition. That is, the content of component D in the gel composition of the present invention is preferably 0.05 to 0.2% by mass, more preferably 0.08 to 0.15% by mass. The content of component D is the amount converted into a pure content.

[0029] [Component E] The gel composition of the present invention preferably further contains PPG-6 (PEG / PPG-8 / 5) glycerin as component E. By using component E, the rich feel when spreading can be further enhanced, and the moist feel on the skin or hair can be further enhanced.

[0030] PPG-6 (PEG / PPG-8 / 5) glycerin is a polyoxyethylene, polyoxypropylene ether of glycerin, obtained by first reacting 8 moles of ethylene oxide and 5 moles of propylene oxide, and then further reacting with 6 moles of propylene oxide. Its INCI name is "PPG-6 PEG / PPG-8 / 5 Glycerin."

[0031] In addition, a commercially available product can be used as the above-mentioned component E. The commercially available product of component E is not particularly limited as long as it exhibits the desired effect, even if it is a single raw material or a mixed raw material with other components.

[0032] The content of component E in the gel composition of the present invention is not particularly limited as long as the desired effect is sufficiently exhibited, but in general, from the viewpoint of further enhancing the rich feeling when spread, it is preferably 0.5% by mass or more, more preferably 1% by mass or more, in 100% by mass of the composition. Also, from the viewpoint of suppressing deterioration of the feeling of use such as stickiness, it is preferably 8% by mass or less, more preferably 6% by mass or less, in 100% by mass of the composition. That is, the content of component E in the gel composition of the present invention is preferably 0.5 to 8% by mass, more preferably 1 to 6% by mass. The content of component E is the amount converted into a pure content.

[0033] [Other ingredients] In addition to the above-mentioned components, the gel composition of the present invention may contain various surfactants, higher alcohols, sugar alcohols, lower alcohols, cooling agents, water-soluble thickeners, film-forming agents, fragrances, powders, colorants, antioxidants, preservatives, UV absorbers, inorganic pigments, pearlizing agents, vitamins, animal and plant extracts, sequestering agents, etc., depending on the purpose and use, as long as the effects of the present invention are not impaired. The above-mentioned other components may be used alone or in combination of two or more. The above-mentioned other components exclude those contained in the above-mentioned components A, B, C, D, and E.

[0034] The method for producing the gel composition of the present invention is not particularly limited, but it can be produced by, for example, a known method. Specifically, for example, the above-mentioned components are mixed and stirred using, for example, a paddle mixer, a dispersing mixer, etc., but the present invention is not limited to only these production methods.

[0035] The site to which the gel composition of the present invention is applied is not particularly limited, but examples thereof include the skin of the face (e.g., forehead, eyes, corners of the eyes, cheeks, mouth, etc.), arms, elbows, backs of the hands, fingertips, feet, knees, heels, neck, armpits, back, etc., or hair such as head hair. In the present invention, it is most preferable to use the gel composition for skin, which allows a more specific feeling of richness. The gel composition of the present invention may be any of cosmetics, quasi-drugs, and pharmaceuticals. EXAMPLES

[0036] The present invention will be described in more detail below based on examples, but the present invention is not limited to these examples. The amounts of ingredients are expressed in "mass %" unless otherwise specified, and the amounts of ingredients in the tables are all values ​​converted to pure contents. In addition, all evaluations were performed at a constant temperature (25±2°C).

[0037] (Sample preparation) According to the formulations shown in Table 1, gel compositions of Examples 1 to 5 and Comparative Examples 1 and 2 were prepared in a conventional manner and subjected to the following evaluation tests. The results are also shown in Table 1.

[0038] (Test Example 1: Evaluation upon application) Each sample obtained in the Examples and Comparative Examples was filled into a 150 g tube. Next, in a usage test in which 3.5 g of the sample was actually applied to the face, a sensory evaluation was performed on "dripping" during application, and a score was assigned according to the following evaluation points of 1 to 5. The evaluation was performed by five expert evaluators, and the average score of each evaluator was determined according to the following criteria. The evaluation criteria for "dripping" were such that the less dripping from the skin, the higher the score.

[0039] <Evaluation criteria> 5 points: very good 4 points: Good 3 points: normal 2 points: Defective 1 point: Very poor

[0040] <Judgment criteria> ◎:Average 4.0 or more ○: Average 3.0 or more and less than 4.0 △: Average 2.0 or more and less than 3.0 ×: Average less than 2.0

[0041] (Test Example 2: Evaluation during and after extension) After the evaluation of Test Example 1, a sensory evaluation was conducted on the "feel" and "spreadability" during spreading, and the "comfort" after spreading, and the results were scored according to the following evaluation points of 1 to 5. The evaluation was carried out by five expert evaluators, and the average score of each evaluator was used to determine the evaluation criteria below.

[0042] The evaluation criteria for "feel" when spreading were as follows: the more there was a feeling of adhesion, the more weight or thickness felt when spreading, and the stronger the feeling of a highly concentrated agent on the skin, the higher the score. The evaluation criteria for "spreadability" were as follows: the better the spreadability, the higher the score. The evaluation criteria for "comfort" after spreading were as follows: the stronger the feeling of penetration into the skin, the higher the score.

[0043] <Evaluation criteria> 5 points: very good 4 points: Good 3 points: normal 2 points: Defective 1 point: Very poor

[0044] <Judgment criteria> ◎:Average 4.0 or more ○: Average 3.0 or more and less than 4.0 △: Average 2.0 or more and less than 3.0 ×: Average less than 2.0

[0045] [Table 1]

[0046] From the results shown in Table 1, it can be seen that the gel compositions of the present invention obtained in each Example, compared to those obtained in each Comparative Example, do not drip from the skin when applied, have a rich feel when spread, have excellent spreadability, and exhibit excellent skin compatibility. In other words, it can be seen that the gel compositions of the present invention fully exhibit functions that were insufficient in conventional gel compositions in addition to the functions that gel formulations inherently have. In contrast, it can be seen that the Comparative Examples not containing the essential components of the present invention are unable to fully exhibit the unique effects of the present invention.

[0047] In addition, when the gel composition of the present invention in Example 3 was used to carry out a similar test on a bundle of hair, there was no dripping from the hair, and when spread, a rich feeling and good spreadability were obtained, and excellent compatibility with the hair was obtained. As is clear from these results, it can be said that the gel composition of the present invention exerts satisfactory effects in all situations, when applied to the skin or hair, when spread, and after spread, only by satisfying the essential components.

Claims

1. A gel composition comprising the following component A, component B, and component C: Component A: (Acryloyldimethyltaurate ammonium / VP) copolymer Component B: Biosaccharide Gum-1 Component C: water

2. The gel composition according to claim 1, characterized in that the mass ratio of component A to component B (component A / component B) is in the range of 5 to 800.

3. 3. The gel composition according to claim 1 or 2, further comprising the following component D: Component D: (Acrylates / C10-30 alkyl acrylate) crosspolymer

4. 3. The gel composition according to claim 1 or 2, further comprising the following component E: Component E: PPG-6 (PEG / PPG-8 / 5) Glycerin

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