CN105686968B - Skin cosmetic and skin care method - Google Patents
Skin cosmetic and skin care method Download PDFInfo
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- CN105686968B CN105686968B CN201510531073.8A CN201510531073A CN105686968B CN 105686968 B CN105686968 B CN 105686968B CN 201510531073 A CN201510531073 A CN 201510531073A CN 105686968 B CN105686968 B CN 105686968B
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Abstract
The invention provides a skin cosmetic which has excellent massage performance, forms a bubble-containing coating film by involving bubbles during massage, has excellent coating film performance and is easy to clean, and comprises the following components (A) to (E): (A) 0.9 to 13.5% by weight of an alkyl ether carboxylic acid or a salt thereof; (B) 3.0-40.0 wt% of an oil agent; (C) 0.3-1.9 wt% of xanthan gum; (D) 0.35 to 1.5 wt% of an acrylic polymer; (E) water, as the total content of the component (C) and the component (D), (C) + (D) being 0.8 to 3.0 wt%, and as the weight ratio of the total content of the component (C) and the component (D) to the component (A), ((C) + (D))/(A) being 0.18 to 3.33. Further, the present invention provides a skin care method of applying the skin cosmetic of the present invention to the skin, massaging and washing the skin.
Description
Technical Field
The present invention relates to a skin cosmetic and a skin care method.
Background
In modern society, as the pace of life of people increases, there is an increasing demand for skin care while washing away dirt in showering or bathing, in order to save time.
In skin care, a massage cosmetic or a mask is used, and for example, patent documents 1 and 2 disclose massage cosmetics related thereto.
Patent document 1 relates to an aqueous massage cosmetic composition comprising an aqueous cosmetic base containing a water-soluble polymer and a specific surfactant, and further comprising a whitening agent and a blood circulation-promoting agent in combination. The aqueous massage cosmetic composition is described to have effects of improving skin color, massaging property, and performance of a mask. Further, it is described that skin color is improved by kneading air by massage to make the cosmetic white turbid and then placing the cosmetic in a state of white turbid and thickened on the skin.
Patent document 2 relates to an aqueous massage cosmetic containing an anionic surfactant, an amphoteric surfactant, a water-soluble polymer, and an oil agent. Further, there is described an effect that air bubbles are incorporated into a coating film of a massage cosmetic to make the coating film opaque, and sufficient viscosity is maintained so as not to drip during massage, and the coating film has excellent retentivity.
Patent document 3 discloses a mild detergent composition containing a nonionic surfactant, another surfactant, a perfume or cosmetic oil, and a stabilizer comprising clay and polysaccharide gel. In addition, it is described that the composition containing a large amount of oil has effects of improving foaming properties, stability, cleansing effect, and skin dryness.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2004-339110
Patent document 2: japanese laid-open patent publication No. 2006-
Patent document 3: CN1166855A
Disclosure of Invention
However, the cosmetics according to patent documents 1 and 2 are high-viscosity cosmetics formed to prevent dripping while maintaining a cosmetic film formed by massage, and are difficult to wash and low in cleansing effect.
Further, the cleansing composition according to patent document 3 cannot form a film that can be kept on the face for a long time in a humid environment such as a bathroom, a shower room, or the like, and therefore cannot be kept on the skin for a long time to achieve an excellent skin care effect.
The invention provides a skin cosmetic which has excellent massage performance, forms and keeps a capsule containing bubbles by enabling the bubbles to be involved in the skin in the massage process, and further, the formed capsule has moisture retention and cleaning performance.
The present inventors have found that by using an acrylic polymer and xanthan gum in combination at a certain ratio and containing an alkyl ether carboxylic acid or a salt thereof at a certain ratio in an O/W system containing a large amount of an oil agent, a skin cosmetic can be obtained which forms a white-looking film (white film) by being applied to the skin and massaged to cause air to be entrained and contain bubbles, is further excellent in massaging properties (easy spreading and non-slipping), and achieves both cleansing and skin care effects. Further, it was found that the formed coating film was continuously maintained on the skin, and further, a white appearance was maintained, and even if water was mixed into the coating film, dripping was less likely to occur, and the white appearance was maintained. Therefore, the skin cosmetic of the present invention can be used in a humid environment such as a bathroom or a shower stall, and can provide a skin care effect and a cleansing effect by a sufficient massage in a shower or a bath. The present invention provides a skin cosmetic comprising the following components (a) to (E):
(A) 0.9 to 13.5% by weight of an alkyl ether carboxylic acid or a salt thereof;
(B) 3.0-40.0 wt% of an oil agent;
(C) 0.3-1.9 wt% of xanthan gum;
(D) 0.35 to 1.5 wt% of an acrylic polymer;
(E) the amount of water is controlled by the amount of water,
the total content of the component (C) and the component (D) is 0.8 to 3.0% by weight of (C) + (D),
the total content of the component (C) and the component (D) is 0.18 to 3.33 in terms of the weight ratio of the component (A) ((C) + (D))/(A).
Further, the present invention provides a skin care method of applying the skin cosmetic of the present invention to the skin, massaging and washing the skin.
Detailed Description
The components of the skin cosmetic of the present invention will be described in detail below.
[ component (A) ]
The alkyl ether carboxylic acid or a salt thereof as the component (a) used in the present invention is represented by the following formula.
R-O-(CH2CH2O)nCH2-COOX
(wherein R represents an alkyl group having 10 to 18 carbon atoms, n represents an average number of 0.5 to 10, and X represents a hydrogen atom or a cation derived from an inorganic base or an organic base.)
In the formula, R is preferably an alkyl group having 12 to 16 carbon atoms, and more preferably a mixture of 12 to 14. The average molar number of addition of ethylene oxide is preferably 0.5 to 10, more preferably 1 to 8, and still more preferably 2 to 5.
Further, as X, a hydrogen atom; alkali metals such as sodium and potassium; ammonium; ammonium of alkanolamines from monoethanolamine, diethanolamine, triethanolamine, and the like; cations derived from basic amino acids such as arginine and lysine.
The component (A) may be used alone or in combination of 2 or more. The component (a) is likely to foam during massage, and forms a white coating film containing uniform bubbles on the skin surface together with the components (C) and (D) described later. From the viewpoint of water resistance, detergency, massaging property of the coating film and detergency of the skin, the content of the component (a) in the skin cosmetic of the present invention is 0.9% by weight or more, preferably 1.8% by weight or more, and 13.5% by weight or less, preferably 9.0% by weight or less. From these viewpoints, the content of the component (a) in the skin cosmetic of the present invention is 0.9 to 13.5% by weight, preferably 1.8 to 9.0% by weight.
[ component (B) ]
As the oil agent of the component (B) used in the present invention, oil agents commonly used in massage cosmetics or skin care products can be used, and specific examples thereof include: mineral oils such as vaseline, liquid mineral oil, polyolefin, paraffin, microcrystalline wax, paraffin, etc.; silicone oils such as polydimethylsiloxane, cyclomethicone, alkylsiloxane, polymethylsiloxane, methylphenylpolysiloxane and the like; for example, lanolin and its derivatives; vegetable oils such as castor oil, cottonseed oil, peanut oil, corn oil, rice bran oil, rice germ oil, olive oil, almond oil, palm oil, sesame oil, evening primrose oil, safflower oil, avocado oil, coconut oil, jojoba oil and the like, or derivatives thereof; and glycerides such as caprylic capric glyceride and glyceryl myristate stearate; esters formed from alcohols and fatty acids, such as isopropyl myristate, isopropyl palmitate, octyl stearate, butyl stearate, tetradecyl myristate, and isopropyl decanoate. Among these, from the viewpoint of providing an excellent skin care effect and enhancing the affinity effect between the oil agent and the skin to achieve a more excellent skin softening effect, among these oil agents, glycerides and esters of alcohols and fatty acids are preferable, and glycerides are more preferable.
The oil agent of the component (B) does not contain the following linear fatty alcohol having 14 to 18 carbon atoms as the component (F) and a linear fatty acid having 14 to 18 carbon atoms as the component (G).
The component (B) may be used singly or in combination of 2 or more. The content of the component (B) in the skin cosmetic of the present invention is 3.0 wt% or more, preferably 5.0 wt% or more, and 40.0 wt% or less, preferably 30.0 wt% or less, from the viewpoint of removing dirt on the skin surface and imparting softness and moisturizing effect to the skin. From these viewpoints, the content of the component (B) in the skin cosmetic of the present invention is 3.0 to 40.0% by weight, preferably 5.0 to 30.0% by weight.
[ component (C) ]
Examples of commercially available Xanthan gum (Xanthan gum) as the component (C) used in the present invention include ECHOGUM T and KELDENT (manufactured by DSP GOKYO FOOD & CHEMICAL co., ltd.).
The component (C) can spread easily on the skin surface when the skin cosmetic is applied to the skin. Further, by using the component (C) in combination with the component (a), bubbles are entangled by massage to form a film containing bubbles.
The content of the component (C) in the skin cosmetic of the present invention is 0.3% by weight or more, preferably 0.4% by weight or more, and 1.9% by weight or less, preferably 1.2% by weight or less, from the viewpoints of uniformity and stability of a film formed by entraining air bubbles during massage, and water resistance of the film. From these viewpoints, the content of the component (C) in the skin cosmetic of the present invention is 0.3 to 1.9% by weight, preferably 0.4 to 1.2% by weight.
[ component (D) ]
The acrylic polymer as the component (D) used in the present invention is a generic term for polymers containing acrylic acid and methacrylic acid as a structural unit, and may be either a crosslinked type or a non-crosslinked type, and is preferably a crosslinked type polymer. For example, an alkyl-modified acrylic polymer or a non-modified acrylic polymer may be used. Further, various commercially available products can BE used, for example, as the acrylic/C10-30 alkanol acrylate crosslinked polymer, CARBOPOLED 2020(BE), PEMULEN TR-1, PEMULEN TR-2 (manufactured by Lubrizol Advanced Materials, Inc.); examples of carbomers include CARBOPOL 980 polymerr (BE), CARBOPOL 981(BE) (manufactured by lubrizol advanced Materials, inc.); examples of the acrylic/steareth-20 methacrylate copolymer include ACULYN 22POLYMER (the Dow Chemical company); examples of the acrylic/beheneth-25 methacrylate copolymer include NOVETHIX L-10 Polymer (manufactured by Lubrizol advanced materials, Inc.); examples of the acrylic/vinyl isostearate crosslinked polymer include Stabylen 30 (manufactured by 3V SIGMA); examples of the polyacrylate-6 crosslinked polymer include SEPIMAX ZEN (manufactured by SEPPIC). Among them, acrylic acid (ester)/C10-30 alkanol acrylate crosspolymer and carbomer are preferable, and acrylic acid (ester)/C10-30 alkanol acrylate crosspolymer is more preferable.
The component (D) can improve the massage property of the skin cosmetic, and the skin cosmetic and the skin generate gripping force during massage, so that the skin cosmetic is not easy to slip; and also can improve the uniformity of the coating.
The component (D) can be used alone or in combination of more than 2 kinds, so as to improve the massage performance of the cosmetic, and to generate grip force during massage and prevent slipping; in the skin cosmetic of the present invention, the content of the component (D) is 0.35% by weight or more, preferably 0.6% by weight or more, and 1.5% by weight or less, preferably 1.0% by weight or less, from the viewpoints of uniformity, stability, and water resistance of the formed film. From these viewpoints, the content of the component (D) in the skin cosmetic of the present invention is 0.35 to 1.5% by weight, preferably 0.6 to 1.0% by weight.
The total content ((C) + (D)) of the component (C) and the component (D) is 0.8% by weight or more, preferably 1.2% by weight or more, and 3.0% by weight or less, preferably 2.0% by weight or less, from the viewpoint of having an appropriate viscosity, a liquid property that facilitates massaging, stability of the preparation, and prevention of dripping of a liquid at the time of application or after massaging. From these viewpoints, the total content ((C) + (D)) of the component (C) and the component (D) in the skin cosmetic of the present invention is 0.8 to 3.0% by weight, preferably 1.2 to 2.0% by weight.
And, from the viewpoints of the speed of forming a coating by entraining air bubbles during massage, uniformity of the coating, and ease of cleaning, the content ratio of the total content of the component (C) and the component (D) to the content of the component (a) [ ((C) + (D))/(a) ] is 0.18 to 3.33.
Further, from the viewpoint of the cosmetic not being liable to slip during massage, the content ratio ((C)/(D)) of the component (C) to the component (D) is 0.25 or more, preferably 0.5 or more, and 3 or less, preferably 1.5 or less, and more preferably 0.7 or less. From these viewpoints, the content ratio ((C)/(D)) of the component (C) to the component (D) in the skin cosmetic of the present invention is 0.25 to 3.0, preferably 0.5 to 1.5, and more preferably 0.5 to 0.7.
[ component (E) ]
Examples of the water as the component (E) used in the present invention include deionized water, distilled water, high purity water, and ultrapure water.
In the skin cosmetic of the present invention, the content of the component (E) is the balance (adjusted to 100% by weight) excluding the above components (a) to (D) and the components (F), component (G) and other components described later.
[ component (F) ]
The skin cosmetic of the present invention may further contain (F) a linear fatty alcohol having 14 to 18 carbon atoms as a component, from the viewpoints of the speed of forming a film by entraining air bubbles during massage, the stability of the film, and the uniformity of the film.
Examples of the straight-chain aliphatic alcohol having 14 to 18 carbon atoms as the component (F) used in the present invention include tetradecanol (myristyl alcohol), pentadecanol, hexadecanol (cetyl alcohol), heptadecanol, and octadecanol (stearyl alcohol). Among them, myristyl alcohol, cetyl alcohol and stearyl alcohol are preferable.
The component (F) may be used alone or in combination of 2 or more, and the content of the component (F) in the skin cosmetic of the present invention is 1.0% by weight or more, preferably 3.0% by weight or more, and 10.0% by weight or less, preferably 5.0% by weight or less, from the viewpoints of the speed of forming a film by entraining air bubbles, and the stability and uniformity of the film. From these viewpoints, the content of the component (F) in the skin cosmetic of the present invention is 1.0 to 10.0% by weight, preferably 1.0 to 5.0% by weight, and more preferably 3.0 to 5.0% by weight.
[ component (G) ]
The skin cosmetic of the present invention may further contain a component (G) of a linear fatty acid having 14 to 18 carbon atoms, from the viewpoints of the speed of forming a film by entraining air bubbles, and the stability and uniformity of the film.
Examples of the linear fatty acid having 14 to 18 carbon atoms as the component (G) used in the present invention include myristic acid (C14), pentadecanoic acid (C15), palmitic acid (C16), pearl fatty acid (C17), and stearic acid (C18). Among them, myristic acid, palmitic acid, and stearic acid are preferable.
The component (G) may be used alone or in combination of 2 or more, and the content of the component (G) in the skin cosmetic of the present invention is 1.0% by weight or more, preferably 3.0% by weight or more, and 10.0% by weight or less, preferably 7.5% by weight or less, from the viewpoints of the speed of forming a film by entraining air bubbles, and the stability and uniformity of the film. From these viewpoints, the content of the component (G) in the skin cosmetic of the present invention is 1.0 to 10.0% by weight, preferably 3.0 to 7.5% by weight.
[ other ingredients ]
In addition, in the skin cosmetic of the present invention, components used in general cosmetics, for example, surfactants other than the component (a), moisturizers, whitening agents, blood circulation promoters, anti-inflammatory agents, bactericides, ultraviolet absorbers, colorants, preservatives, antioxidants, perfumes, pH adjusters, chelating agents, and the like may be used in addition to the above components within a range not affecting the effects of the present invention.
Examples of the surfactant other than the component (a) include alkyl sulfates such as sodium polyoxyethylene lauryl ether sulfate and ammonium polyoxyethylene lauryl ether sulfate; fatty acids such as lauric acid, myristic acid, and palmitic acid; alkyl glycosides and the like.
From the viewpoint of stability, moisture retention, and detergency of the skin cosmetic composition, the content of the surfactant other than the component (a) in the skin cosmetic composition of the present invention is 50% by weight or less, preferably 25% by weight or less, more preferably 10% by weight or less, further preferably 1% by weight or less, particularly preferably 0.1% by weight or less, and most preferably substantially not contained.
The skin cosmetic of the present invention can be produced by a conventional method and prepared into an O/W type emulsion cosmetic. The skin cosmetic of the present invention has a viscosity of 79 dPas or more, preferably 90 dPas or more, and 3200 dPas or less, preferably 1000 dPas or less, at 30 ℃. From these viewpoints, the skin cosmetic of the present invention has a viscosity of 79 to 3200 dPas, preferably 90 to 1000 dPas, at 30 ℃. Within this range, the skin cosmetic is difficult to drip when applied on the skin, is easy to spread on the skin when massaged, and is easy to rinse, and furthermore, is easy to squeeze out without remaining in a package when filled into a package such as a tube-shaped, pump-shaped container.
In the present invention, the viscosity is measured at 30 ℃ using a VISCOMETER TVB-10 (manufactured by Toyobo industries Co., Ltd.).
The skin cosmetic of the present invention is useful as a skin cosmetic such as a massage cleansing agent, a massage bathing agent, and a pack.
The skin cosmetic of the present invention is applied to the skin, preferably to any part of the face, body, hand and foot other than the scalp.
[ skin Care method ]
In any case, the skin cosmetic of the present invention can be applied to the skin, massaged and rinsed, thereby achieving skin care.
Specifically, the skin cosmetic of the present invention can be used in a bath, or can be used in a non-bath, preferably in a bath. In application, skin cosmetic is applied to skin, and bubbles are involved by massage. The skin cosmetic is spread uniformly on the skin to form a film having a white appearance, and then immediately rinsed with water or left on the skin for a certain period of time, preferably for 1 to 600 seconds, more preferably for 10 to 300 seconds, and further preferably for 50 to 300 seconds, and then rinsed again, thereby obtaining a good skin care effect while cleaning the skin. In addition, the massage may be performed by hand or by using a tool such as a sponge.
Further, the present invention provides a cleansing method in which the skin cosmetic of the present invention is applied to the skin and cleansed. Specifically, the present invention provides a cleansing method in which the skin cosmetic of the present invention is applied to the skin, spread on the skin, and then washed with water. Further, the present invention provides a cleansing method comprising applying the skin cosmetic of the present invention to the skin, spreading the skin cosmetic on the skin, allowing the skin to stand for a desired time, preferably for 1 to 600 seconds, more preferably for 10 to 300 seconds, and further preferably for 50 to 300 seconds, and then rinsing the skin with water to cleanse the skin.
Further, the present invention provides a skin moisturizing method, wherein the skin cosmetic of the present invention is applied to the skin to moisturize the skin.
Preferred embodiments of the present invention are further disclosed below with respect to the above-described embodiments.
<1> a skin cosmetic, wherein,
comprises the following components (A) to (E):
(A) 0.9 to 13.5% by weight of an alkyl ether carboxylic acid or a salt thereof;
(B) 3.0-40.0 wt% of an oil agent;
(C) 0.3-1.9 wt% of xanthan gum;
(D) 0.35 to 1.5 wt% of an acrylic polymer;
(E) the amount of water is controlled by the amount of water,
the total content of the component (C) and the component (D) is 0.8 to 3.0% by weight of (C) + (D),
the total content of the component (C) and the component (D) is 0.18 to 3.33 in terms of the weight ratio of the component (A) ((C) + (D))/(A).
<2> the skin cosmetic according to <1>, wherein the oil agent of the component (B) is an oil agent other than the component (F) of the straight-chain fatty alcohol having 14 to 18 carbon atoms and the component (G) of the straight-chain fatty acid having 14 to 18 carbon atoms.
<3> the skin cosmetic according to <1> or <2>, wherein the alkyl group of the component (A) has 10 to 18, preferably 12 to 16, and more preferably 12 to 14 carbon atoms.
<4> the skin cosmetic according to any one of <1> to <3>, wherein the content of the component (A) is preferably 1.8 to 9.0% by weight.
<5> the skin cosmetic according to any one of <1> to <4>, wherein the content of the component (B) is preferably 5.0 to 30.0% by weight.
<6> the skin cosmetic according to any one of <1> to <5>, wherein the content of the component (C) is preferably 0.4 to 1.2% by weight.
<7> the skin cosmetic according to any one of <1> to <6>, wherein the content of the component (D) is preferably 0.6 to 1.0% by weight.
<8> the skin cosmetic according to any one of <1> to <7>, wherein the total content ((C) + (D)) of the component (C) and the component (D) is preferably 1.2 to 2.0% by weight.
<9> the skin cosmetic according to any one of <1> to <8>, wherein the content ratio ((C)/(D)) of the component (C) to the component (D) is 0.25 to 3.0, preferably 0.5 to 1.5, and more preferably 0.5 to 0.7.
<10> the skin cosmetic according to any one of <1> to <9>, wherein the skin cosmetic further comprises (F) a linear fatty alcohol having 14 to 18 carbon atoms.
<11> the skin cosmetic according to <10>, wherein the component (F) is one or more selected from the group consisting of myristyl alcohol, cetyl alcohol and stearyl alcohol.
<12> the skin cosmetic according to <10>, wherein the content of the component (F) is 1.0 to 10.0% by weight, preferably 1.0 to 5.0% by weight, more preferably 3.0 to 5.0% by weight.
<13> the skin cosmetic according to any one of <1> to <12>, wherein the skin cosmetic further comprises a component (G) of a linear fatty acid having 14 to 18 carbon atoms.
<14> the skin cosmetic according to <13>, wherein the ingredient (G) is one or more selected from myristic acid, palmitic acid and stearic acid.
<15> the skin cosmetic according to <13>, wherein the content of the component (G) is 1.0 to 10.0% by weight, preferably 3.0 to 7.5% by weight.
<16> the skin cosmetic according to any one of <1> to <15>, wherein the skin cosmetic has a viscosity of 79 to 3200dPa · s, preferably 90 to 1000dPa · s, at 30 ℃.
<17> A skin care method, wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin, massaged, and washed.
<18> a skin care method, wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin, massaged, kept on the skin for a certain period of time, and then washed.
<19> A skin care method, wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin, massaged, kept on the skin for a certain period of time, preferably for 1 to 600 seconds, more preferably for 10 to 300 seconds, and still more preferably for 50 to 300 seconds, and then washed off.
<20> A cleansing method wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin and cleansed.
<21> a washing method, wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin, spread on the skin, and washed with water.
<22> A cleansing method, wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin, spread on the skin, allowed to stand on the skin for a desired period of time, preferably for 1 to 600 seconds, more preferably for 10 to 300 seconds, and still more preferably for 50 to 300 seconds, and then rinsed with water to cleanse the skin.
<23> A skin moisturizing method, wherein the skin cosmetic according to any one of <1> to <16> is applied to the skin to moisturize the skin.
[ examples ]
The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to the following examples. The amount of each component is% by weight.
Examples
Examples 1 to 68 and comparative examples 1 to 12
Skin cosmetics having compositions shown in tables 1 to 12 were produced by the following methods, and the obtained skin cosmetics were evaluated for viscosity, massaging property, and a coating film (white coating film) having a white appearance formed by involving air bubbles during massage, and water resistance of the coating film, based on the following criteria. The results are shown in tables 1 to 12.
< production method >
First, the component (C) is dispersed in a part of the component (E) by a high-speed stirrer at room temperature to form a B phase. Then, the component (D) was dispersed in the remaining component (E) by a high-speed stirrer at room temperature to form a phase a. Further, the component (A) and the component (B), and if necessary, the component (F) and/or the component (G) are mixed at 70 to 80 ℃ to form a C phase.
Then, the other components such as L-arginine and sodium hydroxide are added to the phase A, and the mixture is mixed for 20 minutes at a rotation speed of 200rpm at 70-80 ℃. Next, phase B was added to phase A and mixed under the same conditions for 10 minutes. Subsequently, phase C was added to phase A and mixed under the same conditions for 20 minutes. Finally, the mixture was cooled to room temperature with ice water, thereby obtaining an O/W type emulsion composition as a skin cosmetic used in examples and comparative examples.
< measurement of viscosity >
The viscosity measurement conditions are as follows.
The temperature is 30 ℃: the skin cosmetic samples were measured after being placed in a thermostatic bath at 30 ℃. + -. 1 ℃ for 1 hour.
Viscometer: VISCOMETER TVB-10 (manufactured by Toho industry Co., Ltd.)
An elevating support (Helipath Stand) was used.
Rotor/speed: T-B/5rpm measurement time: 1 minute
< evaluation criteria >
1. Massage property
1g of skin cosmetic samples were placed on the backs of hands and massaged with the fingers and the abdomen, and the panelists 1 rated each sample for 1 to 5 minutes by the evaluator according to the following criteria, and rated each of the two evaluation items of "easy spreading" and "easy massaging without slipping" of the skin cosmetic during massaging, thereby comprehensively evaluating the massaging property of the skin cosmetic.
(1) Is easy to spread
5: it is very easy to spread.
4: easy to spread.
3: it is not said that.
2: is not easy to spread.
1: it is very difficult to spread.
(2) Easy to massage without slipping
5: no slipping at all and easy massage.
4: no slipping and easy massage.
3: slightly slippery, easy to massage.
2: slipping and difficulty in massaging.
1: it is very slippery and difficult to massage.
2. Coating film
The three evaluation items of "formation speed (sec)", "uniformity", and "stability" of the film formed by entraining air bubbles during massage of the skin cosmetic were evaluated according to the following methods, and the film formed during massage of the skin cosmetic was comprehensively evaluated.
(1) Speed of formation of coating film (second)
A sample of 1g of skin cosmetic was placed on the back of the hand, and massaged with the finger belly at 1.5 cycles/second, and the time (in seconds) from the start of the circling massage until the appearance of the film formed by the entrainment of air bubbles became no longer whiter from the appearance of white was recorded.
(2) Uniformity of coating film
A sample of 1g of skin cosmetic was placed on the back of the hand, and the finger was massaged for 45 seconds at 1.5 cycles/second with the finger belly to engulf air bubbles to form a coating film, and then the appearance of the coating film was visually observed by an evaluator of professional panelist 1 based on the following criteria, and each sample was rated for 1 to 5 minutes.
5: the coating film is milky white and has very uniform and fine texture.
4: the capsule film is milky white and has uniform and fine texture.
3: the coating was slightly milky white and had a slightly rough texture.
2: the coating was slightly milky white and had a rough texture.
1: the coating film was not milky white and had a very rough texture.
(3) Stability of bubble-containing coating film
A sample of 1g of skin cosmetic was placed on the back of the hand, and the skin was wrapped with air bubbles by massaging the finger belly at 1.5 cycles/second for 45 seconds to form a coating film, followed by holding on the back of the hand for 5 minutes, and then the appearance of the coating film was visually observed by an evaluator of professional panelist 1 based on the following criteria, and each sample was rated for 1 to 5 minutes.
5: the coating film had very high persistence and maintained a white appearance.
4: the coating film had high durability and the white appearance was maintained.
3: the coating film had a slight change in white appearance without showing high durability.
2: the coating film had poor persistence and the white appearance was largely changed.
1: the film disappeared, the white appearance disappeared, and dripping occurred.
3. Water resistance of coating film
The evaluation items of "resistance of the film to water" formed during the massage of the skin cosmetic were evaluated according to the following methods, thereby evaluating the water resistance of the film formed during the massage of the skin cosmetic.
(1) Resistance of the coating to water
A sample of 1g of skin cosmetic was placed on the back of the hand, and air bubbles were rolled in with the finger belly for 45 seconds with a massage of 1.5 cycles/second to form a coating film, followed immediately by rinsing with 100ml of water at 30 ℃ for 15 seconds, and then the white appearance of the coating film was visually observed by an evaluator of professional panelist 1 on the basis of the following criteria, and each sample was rated for 1 to 5 minutes.
5: the film was firmly held by the film and the white appearance was continuously maintained.
4: the film was retained and the white appearance was substantially maintained.
3: the appearance of the film slightly changed, and the white appearance slightly changed.
2: a part of the coating film was lost and the white appearance was largely changed.
1: the outline of the film disappeared, there was a trace of running off, and the white appearance disappeared, and dripping occurred.
TABLE 1
As is clear from table 1, in the skin cosmetic of the comparative example, since at least one of the component (a), the component (C), or the component (D) is not contained, any evaluation of the massage property, the film formed by involving air bubbles during massage, and the water resistance of the film is inferior to that of the example.
TABLE 2
TABLE 3
As is clear from tables 2 to 4, in the skin cosmetics of the comparative examples, since the total content ((C) + (D)) of the component (C) and the component (D) or the content ratio [ ((C) + (D))/(a) ] of the total content of the component (C) and the component (D) to the component (a) is out of the range of the present invention, any of the evaluation of the massage property, the film formed by involving air bubbles during massage, and the water resistance of the film is inferior to that of the examples.
In addition, in the case of using a skin cosmetic in which the total content of the component (C) and the component (D) ((C) + (D)) is used and the content ratio of the total content of the component (C) and the component (D) [ ((C) + (D))/(a) ] to the content of the component (a) is within the range of the present invention, excellent massage properties can be obtained, an excellent film can be formed by involving air bubbles during massage, and the water resistance of the film is excellent.
As is clear from table 4, in the case of using the skin cosmetic in which the content of the component (D) is within the range of the present invention, excellent massage property can be obtained, an excellent film can be formed by involving air bubbles during massage, and the water resistance of the film is excellent.
Further, if the content of the component (D) is within the preferable range of the present invention, more excellent massage property, uniformity and stability of the coating film, and resistance of the coating film to water can be obtained.
TABLE 5
As is clear from table 5, in the skin cosmetic compositions of the comparative examples, since the content of the component (a) is out of the range of the present invention, any evaluation of the massage property, the film formed by involving air bubbles during massage, and the water resistance of the film was inferior to that of the examples.
In addition, when a skin cosmetic in which the component (a) is within the range of the present invention is used, excellent massage properties can be obtained, an excellent film can be formed by entraining air bubbles during massage, and the film has excellent water resistance.
TABLE 6
As is clear from table 6, when the skin cosmetic having the content of the component (B) within the range of the present invention was used, excellent massage properties were obtained, an excellent film was formed by causing air bubbles to be entangled during massage, and the film had excellent water resistance.
Further, when the content of the component (B) is within the preferable range of the present invention, more excellent uniformity of the coating film and water resistance of the coating film can be obtained.
TABLE 7
As is clear from table 7, in the case of using the skin cosmetic in which the content of the component (C) is within the range of the present invention, excellent uniformity and stability of the coating film can be obtained.
Further, when the component (C) is within the preferable range of the present invention, more excellent uniformity and stability of the coating film and water resistance of the coating film can be obtained.
As is clear from table 8, in the skin cosmetic compositions of the comparative examples, since the content ratio ((C)/(D)) of the component (C) to the component (D) is out of the range of the present invention, any of the evaluation of the massage property, the film formed by involving air bubbles during massage, and the water resistance of the film was inferior to that of the examples.
In addition, in the case of using a skin cosmetic in which the content ratio ((C)/(D)) of the component (C) to the component (D) is within the range of the present invention, the skin cosmetic does not slip during massage, the speed at which the film is formed by involving air bubbles during massage is increased, and the formed film is excellent in uniformity and stability and water resistance of the film.
TABLE 9
As is clear from table 9, in the skin cosmetic of the present invention, the acrylic polymer as the component (D) can be widely used, excellent massage properties can be obtained in all cases, an excellent film is formed by entraining air bubbles during massage, and the water resistance of the film is excellent. The skin cosmetic of the present invention uses an acrylic acid (ester)/C10-30 alkanol acrylate cross-linked polymer or carbomer, and is more excellent in the uniformity of a film formed by entrainment of air bubbles during massage.
Watch 10
As is clear from table 10, the skin cosmetic of the present invention may further contain the component (F) and/or the component (G), thereby further improving the speed of forming a film by entraining air bubbles during massage and the stability of the film.
TABLE 11
As is clear from table 11, the skin cosmetic of the present invention can further contain the component (F), thereby further improving the speed of forming a film by entraining air bubbles during massage and the stability of the film. In the skin cosmetic of the present invention, when the component (F) is in a preferred range, a faster film formation rate and more excellent film stability can be obtained.
TABLE 12
As is clear from table 12, the skin cosmetic of the present invention can further contain the component (G), thereby further improving the speed of forming a film by entraining air bubbles during massage and the stability of the film.
Further, in the skin cosmetic of the present invention, when the component (G) is in a preferable range, a higher film formation rate and more excellent film stability can be obtained.
The components in tables 1 to 12 are as follows.
Polyoxyethylene (5) lauryl ether carboxylic acid*1: AKYP198452O RLM 45 CA (90%) manufactured by Kao chemical smbH.
Caprylic/capric triglyceride*2: COCONAD MT, manufactured by Kao Corporation.
Xanthan gum*3: ECHO GUM T by DSP GOKYO FOOD&CHEMICAL co., ltd.
Acrylic acid (ester)/C10-30 alkanol acrylate crosspolymer ①*4: CARBOPOL ETD2020(BE), manufactured by Lubrizol Advanced Materials, Inc.
Acrylic acid (ester)/C10-30 alkanol acrylate crosspolymer ②*5: manufactured by PEMULEN TR-1 lubrizol advanced Materials, inc.
Acrylic acid (ester)/C10-30 alkanol acrylate crosspolymer ③*6: manufactured by PEMULEN TR-2 lubrizol advanced Materials, inc.
Carbomer ①*7: carbopol 980, manufactured by Lubrizol Advanced Materials, inc.
Carbomer ②*8: carbopol 981 manufactured by Lubrizol Advanced Materials, inc.
acrylic/Steareth-20 methacrylate copolymers*9: aculyn 22 (30%) manufactured by the Dow Chemical Company.
Acrylic acid (ester)/behenyl alcohol polyether-25 methacrylate copolymer*10：NOVETHIX L-10(40％)，Manufactured by Lubrizol Advanced Materials, inc.
Acrylic/vinyl isostearate crosspolymer*11: stabylen 30, manufactured by 3V SIGMA.
Polyacrylate-6 crosslinked polymers*12: SEPIMAX ZEN, manufactured by SEPPIC.
Myristyl alcohol*13: KALCOL 4098, manufactured by Kao Corporation.
Cetyl alcohol*14: CETYL ALCOHOL NX manufactured by Kokyu ALCOHOL Kogyo co.
Stearyl alcohol*15: STEARYL ALCOHOL NX manufactured by Kokyu ALCOHOL Kogyo co.
Myristic acid*16: pamac 98-14, manufactured by acidchen intermedium sdn.bhd.
Palmitic acid*17: pamac 98-16, manufactured by ACIDCHEM intermedium sdn.bhd.
Stearic acid*18: pamac 98-18, manufactured by acidchen intermedium sdn.bhd.
Claims (9)
1. A skin cosmetic is prepared by mixing, in a solvent,
comprises the following components (A) to (E):
(A) 0.9 to 13.5% by weight of an alkyl ether carboxylic acid represented by the following formula or a salt thereof,
R-O-(CH2CH2O)nCH2-COOX
wherein R represents an alkyl group having 10 to 18 carbon atoms, n represents an average number of 0.5 to 10, and X represents a hydrogen atom or a cation derived from an inorganic base or an organic base;
(B) 3.0 to 40.0 wt% of an oil agent selected from the group consisting of glycerides and esters of an alcohol and a fatty acid;
(C) 0.3-1.9 wt% of xanthan gum;
(D) 0.35 to 1.5 wt% of an acrylic polymer;
(E) the amount of water is controlled by the amount of water,
the total content of the component (C) and the component (D) is 0.8 to 3.0% by weight of (C) + (D),
the total content of the component (C) and the component (D) is 0.18 to 3.33 in terms of the weight ratio of the component (A) ((C) + (D))/(A),
the content ratio of the component (C) to the component (D), (C)/(D), being 0.25 to 3.0.
2. The skin cosmetic according to claim 1,
the alkyl group of the component (A) has 12 to 16 carbon atoms.
3. The skin cosmetic according to claim 1 or 2, wherein,
the skin cosmetic further contains (F) a linear fatty alcohol having 14 to 18 carbon atoms.
4. The skin cosmetic according to claim 3,
the content of the ingredient (F) in the skin cosmetic is 1.0 to 10.0 wt%.
5. The skin cosmetic according to claim 1 or 2, wherein,
the skin cosmetic further contains a component (G) which is a C14-18 linear fatty acid.
6. The skin cosmetic according to claim 5,
the content of the ingredient (G) in the skin cosmetic is 1.0 to 10.0 wt%.
7. The skin cosmetic according to claim 1 or 2, wherein,
the viscosity of the skin cosmetic at 30 ℃ is 79-3200 dPa & s.
8. A non-therapeutic skin care method, wherein,
applying the skin cosmetic as defined in any one of claims 1 to 7 to the skin, massaging and washing.
9. A non-therapeutic skin care method, wherein,
applying the skin cosmetic as claimed in any one of claims 1 to 7 to the skin, massaging, holding on the skin for 1 to 300 seconds, and then washing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2015/084592 WO2016093291A1 (en) | 2014-12-11 | 2015-12-10 | Skin cosmetic and skincare method |
| JP2016563724A JP6454356B2 (en) | 2014-12-11 | 2015-12-10 | Skin cosmetic and skin care method |
| TW104141722A TWI689318B (en) | 2014-12-11 | 2015-12-11 | Skin cosmetics and skin care methods |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410766251 | 2014-12-11 | ||
| CN2014107662510 | 2014-12-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001213761A (en) * | 2000-01-31 | 2001-08-07 | Kao Corp | Skin cleaning agent composition |
| JP2004339110A (en) * | 2003-05-14 | 2004-12-02 | Kao Corp | Aqueous massage cosmetic |
| JP2013253203A (en) * | 2012-06-08 | 2013-12-19 | Kao Corp | Detergent composition |
| CN103974690A (en) * | 2011-12-08 | 2014-08-06 | 花王株式会社 | Skin cleansing agent composition |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103500A (en) * | 1989-09-18 | 1991-04-30 | Kurooda Japan Kk | Detergent composition |
| JP5000978B2 (en) * | 2006-10-25 | 2012-08-15 | 株式会社コーセー | Stick cosmetic |
| CN104203205B (en) * | 2012-03-22 | 2017-06-23 | 富士胶片株式会社 | Transparency emulsification composition high and transparency cosmetic preparation high |
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2015
- 2015-08-26 CN CN201510531073.8A patent/CN105686968B/en active Active
- 2015-12-10 JP JP2016563724A patent/JP6454356B2/en active Active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001213761A (en) * | 2000-01-31 | 2001-08-07 | Kao Corp | Skin cleaning agent composition |
| JP2004339110A (en) * | 2003-05-14 | 2004-12-02 | Kao Corp | Aqueous massage cosmetic |
| CN103974690A (en) * | 2011-12-08 | 2014-08-06 | 花王株式会社 | Skin cleansing agent composition |
| JP2013253203A (en) * | 2012-06-08 | 2013-12-19 | Kao Corp | Detergent composition |
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| Publication number | Publication date |
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| JP6454356B2 (en) | 2019-01-16 |
| TWI689318B (en) | 2020-04-01 |
| TW201626981A (en) | 2016-08-01 |
| CN105686968A (en) | 2016-06-22 |
| JPWO2016093291A1 (en) | 2017-09-21 |
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