CN109498505A

CN109498505A - Gel skin conditioner

Info

Publication number: CN109498505A
Application number: CN201810550927.0A
Authority: CN
Inventors: 山崎律子; 朱开琦
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2017-09-15
Filing date: 2018-05-31
Publication date: 2019-03-22

Abstract

The present invention relates to a kind of gel skin conditioners.Gel skin conditioner of the invention contains ingredient (a) below, (b), (c) and water: (a) polyvinyl alcohol, (b) boric acid and/or its salt (c) are selected from least one of acrylic acid (ester) quasi polymer, polyethylene glycol, hydroxypropyl methyl cellulose high-molecular compound.

Description

Gel skin conditioner

Technical field

The present invention relates to a kind of gel skin conditioners.

Background technique

In China, as mask product is more and more, consumer is gradually increasing the cognition degree of facial mask category and starts handle Mask product is used as the necessity of skin care step.

Currently, mask product in the market, using patch type facial mask as main product, advantage is that moisturizing sense is strong, the disadvantage is that fitting Degree is not enough and use feeling is not good enough (liquid is sticky)；It secondly is daubing-type facial mask (such as: creams facial mask, mud mask etc.), disadvantage It is that moisturizing sense is inadequate and usability is not good enough (needing to clean after use)；And tearing type facial mask, advantage are to be easy use and compactness Height, the disadvantage is that moistening effect is low, especially because adherence force is strong, when removing, is big to skin irritatin, and long-time service be easy to cause skin Damage.

High-molecular compound such as polyvinyl alcohol, hydroxypropyl methyl cellulose, ethylene-vinyl acetate copolymer etc. is due to having Good epithelium performance is used as always the main component of tearing type facial mask as film forming agent.Skin is caused in order to solve removing Damage, a kind of lactic acid for cooperating the above metal of divalent in first dose containing polyvinyl alcohol is disclosed in patent document 1,2 Salt or chloride cooperate the double-formulation facial mask of borax in second dose containing alginate and/or triethanolamine salt.Due to Irreversible gelation reaction occurs when borax is mixed with polyvinyl alcohol water solution, hinders the film forming of polyvinyl alcohol, it is this kind of to tear The form of double-formulation must be made in pull-type facial mask.

In addition, the high-molecular compounds such as polyvinyl alcohol, acrylamide, polyoxyethylene are a kind of good gel forming materials again, There is the report for being used for gel mask in recent years.It is as a kind of by olefin monomer, biological high score in disclosed in patent document 3 Son, chemical cross-linking agent, Physical crosslinking agent and active constituent are dissolved in the gel mask that water is polymerized；It is disclosed in patent document 4 One kind is by water-soluble high-molecular compound carbomer, polyacrylic acid resin, polyvinyl alcohol, sodium carboxymethylcellulose, polyethylene The gel mask of the compositions such as pyrrole network alkanone, moisturizer, crosslinking agent, EDTA.

Although gel form is made by adding above-mentioned high-molecular compound in these facial masks, the comfortable of user is improved Sense, but there is a problem of that hardness and ductility are insufficient, and the effect of compactness, moisturizing sense etc. is still not enough.

Therefore, consumer be badly in need of can solve commercial goods be not easy to stick, compactness not enough, moisturizing in short-term the problems such as, And maintain the mask product of skin-protecting function.

On the other hand, with the aqueous solution of the high-molecular compounds such as polyvinyl alcohol gelation reaction can either occur for borate, The water-insoluble gel of physical crosslinking is formed, and neutralization reaction can occur as inorganic base and acid ingredient etc., further Gel structure and gel characteristic are influenced, is affected by these factors, uses borate, macromolecule chemical combination simultaneously in the composition Object, and on this basis in the case where cooperation other compositions, the variation of gel rubber system is more complicated.And above patent document 1 Preparation in~4 for the gel skin conditioner containing borate, polyvinyl alcohol and acrylic acid (ester) class etc. forms and its effect Fruit is all without carrying out any discussion.

Patent document:

Patent document 1: the clear 63-35511 bulletin of Japan

Patent document 2: the clear 55-127311 bulletin of Japan

Patent document 3:CN103520070A

Patent document 4:CN102370585A

Summary of the invention

The purpose of the present invention is to provide one kind with suitable hardness, ductility, moisturizing sense and use feeling (without viscous Soapy feeling) gel skin conditioner.

Present inventor have discovered that polyvinyl alcohol, boric acid and/or its salt is applied in combination and is selected from acrylic acid (ester) Type of Collective In the case where at least one of object, polyethylene glycol, hydroxypropyl methyl cellulose high-molecular compound, polyvinyl alcohol water solution with When mixing irreversible gelation reaction occurs for boric acid (salt) aqueous solution, forms water-insoluble network by polyvinyl alcohol and boric acid (salt) Close object；On the one hand, in the water-insoluble complex compound, polyvinyl alcohol is dissolved in water and constitutes reticular structure, and boric acid (salt) is in netted knot The crosspoint of structure further fixes structure, it is hereby achieved that appropriateness when suitable hardness and on the skin use extends Property, keep compactness good and without sticky sense；On the other hand above-mentioned high-molecular compound keeps reticular structure loose, can obtain more Good moisturizing sense is acted synergistically by these, and thus, it is possible to obtain with suitable hardness, ductility and excellent moisturizing Feel, the gel skin conditioner of use feeling (without sticky sense).

Specifically, the present invention provides a kind of gel skin conditioner, wherein containing ingredient (a) below, (b), (c) with And water:

(a) polyvinyl alcohol,

(b) boric acid and/or its salt,

(c) at least one of acrylic acid (ester) quasi polymer, polyethylene glycol, hydroxypropyl methyl cellulose macromolecule are selected from Compound.

Specific embodiment

Gel skin conditioner of the invention and skin care method are described in detail respectively below.

[ingredient (a)]

The polyvinyl alcohol for the ingredient (a) being used in the present invention is not particularly limited, and can be with the following general formula (1) institute The polyvinyl alcohol for the basic structure shown.

In formula, m isThe degree of polymerization, n isThe degree of polymerization.It is obtained from gel skin conditioner From the perspective of suitable hardness, average degree of polymerization (m+n) is 250 or more, preferably 400 or more, more preferably 500 or more； From the viewpoint of obtaining suitable softness, (m+n) is for 5000 hereinafter, preferably 4000 hereinafter, more preferably 1000 or less.Cause This, from the viewpoint of obtaining suitable hardness, (m+n) is 250~5000, preferably 400~4000, more preferably 500 ~1000.

From the viewpoint of obtaining suitable hardness, the viscosity of polyvinyl alcohol 4% aqueous solution at 20 DEG C of ingredient (a) is excellent It is selected as 3mPas or more, more preferably 10mPas or more, further preferably 30mPas or more, it is suitable soft from obtaining From the perspective of degree, viscosity is preferably 80mPas hereinafter, more preferably 70mPas is hereinafter, further preferably 55mPas Below.Therefore, from the viewpoint of obtaining suitable hardness, viscosity is preferably 3~80mPas, more preferably 10~ 70mPas, further preferably 30~55mPas.

From the viewpoint of obtaining suitable hardness, the alcoholysis degree of the polyvinyl alcohol of ingredient (a) be preferably 70mol% with On, more preferably 75mol% or more, from the viewpoint of obtaining suitable hardness, alcoholysis degree is preferably less than 100mol%, More preferably 99mol% or less.Therefore, from the viewpoint of obtaining suitable hardness, alcoholysis degree is preferably 70~it is less than 100mol%, more preferably 75~99mol%.

Wherein, alcoholysis degree is calculated by following calculating formulas.

* 100 moles of % of alcoholysis degree=m/ (m+n).

In gel skin conditioner of the invention, the polyvinyl alcohol of ingredient (a) is soluble in water to be made aqueous solution and comes using can be with It is used singly or in combination two or more, from the viewpoint of obtaining suitable hardness, the polyvinyl alcohol of ingredient (a) contains Preferably 1 mass % or more, more preferably 2 mass % or more, further preferably 3 mass % or more are measured, it is suitable from obtaining From the perspective of softness, the content of polyvinyl alcohol is 15 mass % hereinafter, preferably 12 mass % are hereinafter, more preferably 10 matter Measure % or less.Therefore, from the viewpoint of obtaining suitable hardness, the content of polyvinyl alcohol is preferably 1~15 mass %, more Preferably 2~12 mass %, further preferably 3~10 mass %.

As the polyvinyl alcohol of ingredient (a), commercially available product can enumerate GohsenolEG-40C, and (alcoholysis degree 86.5~89 rubs You are %, 20 DEG C of 4% solution viscosity: 34.4~51.6mPas) (the Nippon Synthetic Chemical Industry Co., Ltd's system), GohsenolEG-05C (86.5~89 moles of % of alcoholysis degree, 20 DEG C of 4% solution viscosity: 4.2~6.3mPas) (close by Japan At chemical industry Co. Ltd. system), PVA-220S (87~89 moles of % of alcoholysis degree, 20 DEG C of 4% solution viscosity: 27~ 33mPas) (Co., Ltd.'s KURARAY system), PVA-205S (86.5~89 moles of % of alcoholysis degree, 20 DEG C of 4% solution viscosity: 4.6~5.4mPas) (Co., Ltd.'s KURARAY system), PVA-117S (98~99 moles of % of alcoholysis degree, 20 DEG C of 4% aqueous solution Viscosity: 25~31mPas) (Co., Ltd.'s KURARAY system), (87~89 moles of % of alcoholysis degree, 20 DEG C 4% water-soluble by PVA-217S Fluid viscosity: 20.5~24.5mPas) (Co., Ltd.'s KURARAY system) etc..

[ingredient (b)]

Ingredient (b) used in the present invention is boric acid and/or its salt, as borate can enumerate dipotassium tetraborate, The alkali borate etc. of sodium tetraborate, wherein from the viewpoint of start with it is convenient, preferred sodium tetraborate, commercially available product can be with Enumerate the BORAX of Wako Pure Chemical Industries, Ltd.'s manufacture.

In gel skin conditioner of the invention, ingredient (b) can directly using or soluble in water aqueous solution be made make With may be used singly or in combin two or more, from the viewpoint of suitable ductility, in gel of the invention In skin conditioner, the content of ingredient (b) is 0.2 mass % or more, preferably 0.3 mass % or more, more preferably 0.4 mass % with On, and be 2 mass % hereinafter, preferably 1.8 mass % are hereinafter, more preferably 1.5 mass % or less.Specifically, ingredient (b) content is 0.2~2 mass %, preferably 0.3~1.8 mass %, more preferably 0.4~1.5 mass %.

In gel skin conditioner of the invention, the poly- second of the boric acid of ingredient (b) and/or its salt (borax) in ingredient (a) Intersections of reticular structure that enol is formed lights the effect of fixed structure, thus make the suitable hardness of gel skin conditioner acquisition and Ductility stops for a long time also be able to maintain its form on the skin.Therefore, pass through the polyvinyl alcohol of modifying ingredients (a) and ingredient (b) ratio of boric acid and/or its salt obtains suitable hardness, ductility, and without sticky sense.From suitable hardness, extension Property and without sticky sense from the perspective of, the mass ratio ((a)/(b)) of ingredient (a) and ingredient (b) be 1.4 or more, preferably 3 with On, more preferably 6 or more, and preferably 10 or less.Specifically, (a)/(b) is preferably 1.4~10, more preferably 3~ 10, further preferably 6~10.

[ingredient (c)]

Ingredient (c) used in the present invention is selected from acrylic acid (ester) quasi polymer, polyethylene glycol, hydroxypropyl methyl At least one of cellulose high-molecular compound.It can enumerate as acrylic acid (ester) quasi polymer selected from metering system Acid, acrylic acid, methacrylate, acrylate, Methacrylamide and acrylamide monomer as structural unit Homopolymer or containing the two or more copolymers as structural unit in these monomers, preferred acrylate/acrylic acid/ The alkyl ester copolymer of C10~30, acrylic acid/2- acrylamide-2- methyl-1-propane sulfonic acid amide copolymer salt.It is glued from suitable From the perspective of degree, the viscosity of the high-molecular compound of ingredient (c) is 8000mPas or more and 14000mPas or less.From Suitable ductility, without sticky sense and excellent moisturizing sense from the perspective of, ingredient (c) is preferably acrylic acid (ester) Type of Collective Object, commercially available product can enumerate the PEMULEN TR-1 of Lu Borun special type chemical industry manufacture.

In gel skin conditioner of the invention, the high-molecular compound of ingredient (c) is soluble in water be made aqueous solution come using, Ingredient (c) may be used singly or in combin two or more, from the viewpoint of moisturizing sense, ductility and without sticky sense, In gel skin conditioner of the invention, the content of ingredient (c) is preferably 0.001 mass % or more, more preferably 0.01 matter % or more, further preferably 0.02 mass % or more, and preferably 0.6 mass % are measured hereinafter, more preferably 0.4 mass % Hereinafter, further preferably 0.1 mass % or less.Specifically, the content of ingredient (c) is preferably 0.001~0.6 mass %, More preferably 0.01~0.4 mass %, further preferably 0.02~0.1 mass %.

In gel skin conditioner of the invention, pass through the polyvinyl alcohol of modifying ingredients (a) and the producing high-molecular of ingredient (c) The ratio for closing object, obtains suitable hardness, ductility and excellent moisturizing sense.From suitable hardness, ductility, without sticky sense And from the perspective of excellent moisturizing sense, the mass ratio ((a)/(c)) of ingredient (a) and ingredient (c) is preferably 10 or more, more excellent Be selected as 60 or more, further preferably 150 or more, and preferably 420 hereinafter, more preferably 400 hereinafter, further preferably 250 or less.Specifically, (a)/(c) is preferably 10~420, more preferably 60~400, further preferably 150~250.

[ingredient (d)]

In gel skin conditioner of the invention, it can also further contain ingredient (d) neutralizer, hydroxide can be enumerated Potassium, sodium hydroxide, arginine etc., preferably potassium hydroxide.The neutralizer of ingredient (d) and the high-molecular compound one of ingredient (c) It rises and uses, the viscosity and pH of adjustable gel skin conditioner.

Ingredient (d) may be used singly or in combin two or more, from the viewpoint of moisturizing sense, ductility, at this In the gel skin conditioner of invention, the content of ingredient (d) is preferably 0.005 mass % or more, more preferably 0.01 mass % with On, further preferably 0.015 mass % or more, and preferably 0.4 mass % hereinafter, more preferably 0.3 mass % hereinafter, Further preferably 0.1 mass % or less.Specifically, the content of ingredient (d) is preferably 0.005~0.4 mass %, more preferably For 0.01~0.3 mass %, further preferably 0.015~0.1 mass %.

[ingredient (e)]

In gel skin conditioner of the invention, can also further contain ingredient (e) moisturizer, can enumerate glycerol, D-sorbite, butanediol, dipropylene glycol, ethoxydiglycol, ethyl alcohol etc., preferably butanediol.

Ingredient (e) may be used singly or in combin two or more, and there is no limit for the content of the moisturizer of ingredient (e), From the viewpoint of moisturizing sense, ductility, in gel skin conditioner of the invention, the content of ingredient (e) is preferably 1 mass % More than, more preferably 1.5 mass % or more, further preferably 2 mass % or more, and preferably 20 mass % are hereinafter, more Preferably 10 mass % are hereinafter, further preferably 5 mass % or less.Specifically, the content of ingredient (e) is preferably 1~20 Quality %, more preferably 1.5~10 mass %, further preferably 2~5 mass %.

In gel skin conditioner of the invention, pass through the moisturizer of the polyvinyl alcohol and ingredient (e) of modifying ingredients (a) Ratio obtains suitable ductility and excellent moisturizing sense.Go out from the viewpoint of suitable ductility and excellent moisturizing sense The mass ratio ((a)/(e)) of hair, ingredient (a) and ingredient (e) is preferably 1 or more, and more preferably 1.4 or more, further preferably 1.6 or more, and preferably 10 hereinafter, more preferably 7 hereinafter, further preferably 3.5 or less.Specifically, (a)/(e) is excellent It is selected as 1~10, more preferably 1.4~7, further preferably 1.6~3.5.

[water]

Water used in the present invention can enumerate deionized water, distilled water, high purity water, ultrapure water etc..

In gel skin conditioner of the invention, the content of ingredient (c) is to remove mentioned component (a)~(e) and aftermentioned Other ingredients except surplus (being adjusted to 100 mass %), preferably 35 mass % or more, more preferably 55 mass % with On, further preferably 75 mass % or more, and preferably 98.8 mass % hereinafter, more preferably 95 mass % hereinafter, into One step is preferably 90 mass % or less.Specifically, the content of water is preferably 35~98.8 mass %, more preferably 55~95 matter Measure %, further preferably 75~90 mass %.

[other ingredients]

In addition, in gel skin conditioner of the invention, in addition to the foregoing, in the model for not influencing effect of the present invention In enclosing, component used in usual cosmetics can be used, for example, polymer, whitening agent other than ingredient (a) and ingredient (c), Blood circulation accelerant, antiphlogistic, fungicide, ultraviolet absorbing agent, colorant, preservative, antioxidant, fragrance, pH are adjusted Agent, chelating agent etc..

As the polymer other than ingredient (a) and ingredient (c), xanthan gum, carrageenan, hydroxypropyl cellulose can be enumerated Deng.The content of polymer is 0.1~2 mass %.

As whitening agent, 1~3 mass % of ascorbic acid and its salt can be contained, 0.5~5 matter of niacinamide can also be contained Measure %.

The manufacturing method of gel skin conditioner of the invention can be enumerated ingredient (a), ingredient (b), ingredient (c) respectively It is soluble in water that aqueous solution is made, the aqueous solution of ingredient (c) is then added in the aqueous solution of ingredient (a), alternatively, in ingredient (c) Aqueous solution in the aqueous solution of ingredient (a) is added, be eventually adding the aqueous solution of ingredient (b), stirring stands and obtains gel skin care The method of agent.

Gel skin conditioner of the invention preferably fits in face, body, brothers in addition to scalp by fitting in skin Equal any parts come using.Optionally-stretchable extends when in use, has a good compactness for skin, and to user with Carry out good moisturizing sense and not sticky, is easy to remove from skin after use.Gel skin conditioner of the invention is filled in pipe It is also easy to take out and will not remain in packaging when in the portable packaging such as shape, bag-shaped.

[skin care method]

It is in any case possible to gel skin conditioner of the invention is applied to skin, to realize skin nursing.Tool For body, when in use, gel skin conditioner first can be extended into modest size, be then bonded on the skin；Alternatively, first will Then gel skin conditioner patch extends into modest size on the skin, so that it is kept a period of time on the skin, preferably protect It holds 1 minute~2 hours, is more preferably kept for 5 minutes~1 hour, be easily peeled off after use, thus obtain good skin nursing Effect.In addition, can cooperate massage while using gel skin conditioner, massage can directly be massaged with hand, can also be made It is carried out with tools such as sponges.

In turn, the present invention provides a kind of skin moisturization process, wherein gel skin conditioner of the invention is applied to skin Skin carries out moisturizing to skin.

For embodiments described above, the preferred embodiments of the present invention disclosed further below.

[1] a kind of gel skin conditioner, wherein contain ingredient (a) below, (b), (c) and water:

(a) polyvinyl alcohol,

(b) boric acid and/or its salt,

[2] the gel skin conditioner according to above-mentioned [1] or [2], wherein the gel skin conditioner further contains Ingredient (d) neutralizer.

[3] the gel skin conditioner according to above-mentioned [1], wherein the gel skin conditioner further contains ingredient (e) moisturizer.

[4] the gel skin conditioner according to any one of above-mentioned [1]~[3], wherein the alcoholysis degree of ingredient (a) is excellent Be selected as 70mol% or more, more preferably 75mol% or more, and preferably less than 100mol%, more preferably 99mol% with Under；I.e. alcoholysis degree be preferably 70~be less than 100mol%, more preferably 75~99mol%.

[5] the gel skin conditioner according to any one of above-mentioned [1]~[4], wherein the polyvinyl alcohol of ingredient (a) At 20 DEG C, the viscosity of 4% aqueous solution is preferably 3mPas or more, more preferably 10mPas or more, further preferably 30mPas or more, viscosity is preferably 80mPas hereinafter, more preferably 70mPas is hereinafter, further preferably 55mPas Below.Therefore, viscosity is preferably 3~80mPas, more preferably 10~70mPas, further preferably 30~55mPas.

[6] the gel skin conditioner according to any one of above-mentioned [1]~[5], wherein the content of ingredient (a) is preferred For 1 mass % or more, more preferably 2 mass % or more, further preferably 3 mass % or more, and be 15 mass % hereinafter, Preferably 12 mass % are hereinafter, more preferably 10 mass % or less；That is the content of polyvinyl alcohol is preferably 1~15 mass %, more Preferably 2~12 mass %, further preferably 3~10 mass %.

[7] the gel skin conditioner according to any one of above-mentioned [1]~[6], wherein the content of ingredient (b) is 0.2 Quality % or more, preferably 0.3 mass % or more, more preferably 0.4 mass % or more, and be 2 mass % hereinafter, preferably 1.8 mass % hereinafter, more preferably 1.5 mass % hereinafter, below further preferably 0.8 mass；I.e. content is 0.2~2 matter Measure %, preferably 0.3~1.8 mass %, more preferably 0.4~1.5 mass %.

[8] the gel skin conditioner according to any one of above-mentioned [1]~[7], wherein ingredient (a) and ingredient (b) Mass ratio (a)/(b) is 1.4 or more, preferably 3 or more, more preferably 6 or more, and preferably 10 hereinafter, more preferably 7.5 Below；That is (a)/(b) is preferably 1.4~10, and more preferably 3~10, further preferably 6~10.

[9] the gel skin conditioner according to any one of above-mentioned [1]~[8], wherein ingredient (c) is preferably selected from Acrylate/the alkyl ester copolymer of acrylic acid/C10~30, acrylic acid/2- acrylamide-2- methyl-1-propane sulfonic acid amide copolymerization At least one of object salt, polyethylene glycol, hydroxypropyl methyl cellulose high-molecular compound, more preferably selected from acrylate/ In acrylic acid/C10~30 alkyl ester copolymers, acrylic acid/2- acrylamide-2- methyl-1-propane sulfonic acid amide copolymer salt At least one high-molecular compound.

[10] the gel skin conditioner according to any one of above-mentioned [1]~[9], wherein the content of ingredient (c) is preferred For 0.001 mass % or more, more preferably 0.01 mass % or more, further preferably 0.02 mass % or more, and preferably For 0.6 mass % hereinafter, more preferably 0.4 mass % is hereinafter, further preferably 0.1 mass % or less；That is ingredient (c) contains Amount is preferably 0.001~0.6 mass %, more preferably 0.01~0.4 mass %, further preferably 0.02~0.1 mass %.

[11] the gel skin conditioner according to any one of above-mentioned [1]~[10], wherein ingredient (a) and ingredient (c) Mass ratio ((a)/(c)) be preferably 10 or more, more preferably 60 or more, further preferably 150 or more, and preferably 420 hereinafter, more preferably 400 hereinafter, further preferably 250 or less；That is (a)/(c) is preferably 10~420, and more preferably 60 ~400, further preferably 150~250.

[12] the gel skin conditioner according to any one of above-mentioned [1]~[11], wherein the content of ingredient (d) is excellent It is selected as 0.005 mass % or more, more preferably 0.01 mass % or more, further preferably 0.015 mass % or more, and excellent 0.4 mass % is selected as hereinafter, more preferably 0.3 mass % is hereinafter, further preferably 0.1 mass % or less；I.e. content is preferred For 0.005~0.4 mass %, more preferably 0.01~0.3 mass %, further preferably 0.015~0.1 mass %.

[13] the gel skin conditioner according to any one of above-mentioned [1]~[12], wherein ingredient (e) preferably selects From at least one of glycerol, D-sorbite, butanediol, dipropylene glycol, ethoxydiglycol, ethyl alcohol moisturizer, more preferably Selected from least one of butanediol, dipropylene glycol, ethyl alcohol moisturizer, further preferably butanediol.

[14] the gel skin conditioner according to any one of above-mentioned [1]~[13], wherein the content of ingredient (e) is excellent It is selected as 1 mass % or more, more preferably 1.5 mass % or more, further preferably 2 mass % or more, and preferably 20 matter % is measured hereinafter, more preferably 10 mass % are hereinafter, further preferably 5 mass % or less；I.e. content is preferably 1~20 matter Measure %, more preferably 1.5~10 mass %, further preferably 2~5 mass %.

[15] the gel skin conditioner according to any one of above-mentioned [1]~[14], wherein ingredient (a) and ingredient (e) Mass ratio ((a)/(e)) be preferably 1 or more, more preferably 1.4 or more, further preferably 1.6 or more, and preferably 10 Hereinafter, more preferably 7 hereinafter, further preferably 3.5 or less；That is (a)/(e) is preferably 1~10, and more preferably 1.4~7, into One step is preferably 1.6~3.5.

[16] a kind of skin care method, wherein by gel skin conditioner described in any one of above-mentioned [1]~[15] Applied to skin.

[17] manufacturing method of gel skin conditioner described in a kind of any one of above-mentioned [1]~[15], wherein by ingredient (a), ingredient (b), ingredient (c) are soluble in water respectively is made aqueous solution, and the water of ingredient (c) is added in the aqueous solution of ingredient (a) Solution or the aqueous solution that ingredient (a) is added in the aqueous solution of ingredient (c), are then added the aqueous solution of ingredient (b), stir quiet It sets, to obtain gel skin conditioner.

Embodiment

Hereinafter, enumerate embodiment and comparative example further specifically describes the present invention, but the present invention is not defined In following embodiments.In addition, the amount of each ingredient is quality %.

Embodiment 1~16, comparative example 1~3

Manufacture the gel skin conditioner formed shown in table 1~4, evaluation ductility, hardness, use feeling (no sticky sense) and guarantor Wet sense.By result unified representation in table 1~4.

(manufacturing method)

It forms, ingredient (a) is suspended in deionized water at room temperature, and stirred in 80 DEG C of water-baths according to shown in table 1~4 Mix make its all dissolve, supply the water content evaporated after being cooled to room temperature, then be added ingredient (c) aqueous solution, at The ingredient (e) for dividing (d) and being added as needed, the aqueous solution of last adding ingredient (b) stir obtained mixed liquor manually Mixing makes ingredient (a) and ingredient (b) that gelation reaction occur, and is stirred for after standing once, to obtain gel skin conditioner.

(evaluation method)

(1) evaluation of ductility

Composition (gel skin conditioner) 2g prepared in table 1~4 is taken, horizontal table top is placed on, with the hands in composition 3cm is laterally pullled at both ends, longitudinally pulls 3cm.Ductility is evaluated according to following standards of grading.

Evaluation criterion:

1: fracture completely during pullling.

2: being slightly broken during pullling.

3: unbroken during pullling, rebound resistance when pullling.

4: unbroken during pullling, slightly rebound resistance when pullling.

5: it is unbroken during pullling, it pulls easily without the resistance that obviously rebounds.

(2) evaluation of hardness

The composition 2g prepared in table 1~4 is taken, ball is twisted into, is placed on horizontal table top, pushes down composition with the lead of 500g 10 seconds.Carry out evaluation hardness according to following standards of grading.

Evaluation criterion:

1: composition hardly deforms and (can't be film-form) after pressure, quite firmly.

2: composition is in film-form in uneven thickness after pressure, and the balance of hardness and pliability can not receive.

3: composition is in the more uniform film-form of thickness after pressure, and the balance of hardness and pliability can slightly receive.

4: composition is in the more uniform film-form of thickness after pressure, and the balance of hardness and pliability can receive.

5: composition is in film-form in homogeneous thickness after pressure, and the balance of hardness and pliability is quite excellent.

(3) evaluation of use feeling (without sticky sense)

Take the composition 2g prepared in table 1~4, be put on the inside of wrist, with hand slightly extension composition at uniform film-form, Composition is disposably taken off after sticking 1 minute, the skin surface sticked with feel by composition.Come according to following standards of grading It evaluates use feeling (without sticky sense).

Evaluation criterion:

1: skin has strong sticky sense, residual composition.

2: skin has sticky sense, and composition, which has, slightly to be remained.

3: skin slightly has sticky sense, and composition, which has, slightly to be remained.

4: without sticky sense, composition has slightly to be remained skin.

5: skin is without sticky sense, composition noresidue.

(4) evaluation of moisturizing sense

Take the composition 2g prepared in table 1~3, be put on the inside of wrist, with hand slightly extension composition at uniform film-form, Composition is disposably taken off after sticking 1 minute, the skin surface sticked with feel by composition.Come according to following standards of grading Evaluate moisturizing sense.

Evaluation criterion:

1. skin is without moist feeling.

2. skin is almost without moist feeling.

3. skin slightly has moist feeling.

4. skin has moist feeling.

5. skin has obvious moist feeling.

Table 2

Table 3

Table 4

Polyvinyl alcohol (1): GohsenolEG-40C, the Nippon Synthetic Chemical Industry Co., Ltd's manufacture；

Polyvinyl alcohol (2): PVA-117s, Co., Ltd. KURARAY manufacture；

Borate: borax, Wako Pure Chemical Industries, Ltd.'s manufacture；

Acrylic acid (ester) class: PEMULEN TR-1, Lu Borun special type chemical industry manufacture；

Potassium hydroxide: Sinopharm Chemical Reagent Co., Ltd.'s manufacture；

1,3 butylene glycol: OXEA GmbH manufacture；

Hydroxypropyl methyl cellulose: Shin-Etsu Chemial Co., Ltd's manufacture；

Polyethylene glycol: PEG-20000, Sanyo Chemical Industries, Ltd.'s manufacture；

Dipropylene glycol: DPG-RF, Asahi Denka Co., Ltd.'s manufacture.

By above-mentioned table 1~4 it has been confirmed that the obtained gel skin conditioner of embodiment 1~16 have the hardness of appropriateness and Ductility when using on the skin is good, and use feeling and moisturizing sense are excellent.

Claims

1. a kind of gel skin conditioner, wherein contain ingredient (a) below, (b), (c) and water:

(a) polyvinyl alcohol,

(b) boric acid and/or its salt,

(c) at least one of acrylic acid (ester) quasi polymer, polyethylene glycol, hydroxypropyl methyl cellulose macromolecule chemical combination are selected from Object.

2. gel skin conditioner according to claim 1, wherein

The gel skin conditioner further contains ingredient (d) neutralizer.

3. gel skin conditioner according to claim 1, wherein

The gel skin conditioner further contains ingredient (e) moisturizer.

4. gel skin conditioner according to claim 1, wherein

Mass ratio (a)/(b) of ingredient (a) and ingredient (b) is 5 or more and 10 or less.

5. gel skin conditioner according to claim 1, wherein

Mass ratio (a)/(c) of ingredient (a) and ingredient (c) is 10 or more and 420 or less.

6. gel skin conditioner according to claim 1, wherein

Mass ratio (a)/(e) of ingredient (a) and ingredient (e) is 1 or more and 10 or less.

7. gel skin conditioner according to claim 1, wherein

The content of ingredient (c) is 0.001 mass % or more and 0.6 mass % or less.

8. gel skin conditioner according to claim 2, wherein

The content of ingredient (d) is 0.005 mass % or more and 0.4 mass % or less.

9. a kind of skin care method, wherein

Gel skin conditioner described in any one of described claim 1~8 is applied to skin.

10. a kind of manufacturing method of gel skin conditioner according to any one of claims 1 to 8, wherein

Aqueous solution is made by ingredient (a), ingredient (b), ingredient (c) are soluble in water respectively, be added in the aqueous solution of ingredient (a) at Divide the aqueous solution of (c) or the aqueous solution of ingredient (a) is added in the aqueous solution of ingredient (c), the water-soluble of ingredient (b) is then added Liquid, stirring is stood, to obtain gel skin conditioner.