TWI689318B - Skin cosmetics and skin care methods - Google Patents

Abstract

The invention provides a skin cosmetic material, which has excellent massage properties, and can be used to wrap air bubbles during massage to form a film containing air bubbles. The film has excellent performance and is easy to wash. Furthermore, the present invention provides a skin care method which applies the skin cosmetic of the present invention to the skin, massages and cleanses.

The skin cosmetic of the present invention contains the following components (A) to (E): (A) alkyl ether carboxylic acid or its salt 0.9 to 13.5% by weight (B) oil agent 3.0 to 40.0% by weight (C) Sanxian gum 0.3 ~1.9% by weight (D) acrylic polymer 0.35~1.5% by weight (E) water, the total content of components (C) and (D) (C)+(D) is 0.8~3.0% by weight, component (C) The weight ratio ((C)+(D))/(A) of the total content of (D) to component (A) is 0.18 to 3.33, and the content ratio of component (C) to component (D) is ((C )/(D)] is 0.25~3.0.

Description

Skin cosmetics and skin care methods

The invention relates to a skin cosmetic and a skin care method.

In modern society, people's life rhythm is gradually accelerating. Among them, in order to save time, the need for skin care while taking a shower or bath to remove dirt has also increased.

For skin care, use compresses or massage agents. For example, Patent Documents 1 and 2 disclose related massage agents.

Patent Document 1 relates to a water-based massage cosmetic compound in which a predetermined surfactant is blended in a water-based cosmetic base material containing a water-soluble polymer, and a whitening agent and a blood circulation accelerator are used together. It is described that the water-based massage cosmetics have the effects of improving the complexion, massage and the performance of the dressing. It is also described that by massaging the air, the cosmetics are clouded, and then the cosmetics in a clouded and thickened state are applied to the skin, thereby improving the complexion.

Patent Document 2 relates to an aqueous massage cosmetic containing an anionic surfactant, an amphoteric surfactant, a water-soluble polymer, and an oil. It is also described that air bubbles are drawn into the coating film of the massage cosmetics to make it opaque and maintain a sufficient viscosity that does not drip during the massage, and the effect of the coating film's retention is excellent.

Patent Document 3 discloses a stabilizer containing nonionic surfactants, other surfactants, perfume or cosmetic oils, and a stabilizer composed of clay and polysaccharide gel The mild cleansing composition further describes the effect of improving the foamability, stability, cleansing effect, and dryness of the skin in a composition containing more oil.

(Patent Document 1) Japanese Patent Laid-Open No. 2004-339110

(Patent Document 2) Japanese Patent Laid-Open No. 2006-137731

(Patent Document 3) China Patent No. 1166855A Specification

The present invention provides a skin cosmetic comprising the following components (A) to (E): (A) alkyl ether carboxylic acid or its salt 0.9 to 13.5% by weight (B) oil agent 3.0 to 40.0% by weight (C) Xanthan 0.3~1.9% by weight (D) acrylic polymer 0.35~1.5% by weight (E) water, the total content of components (C) and (D) [(C)+(D)] is 0.8~3.0% by weight , The total content of component (C) and (D) relative to component (A) weight ratio [((C)+(D))/(A)] is 0.18~3.33, component (C) relative to component (D ) Content ratio [(C)/(D)] is 0.25~3.0.

Furthermore, the present invention provides a skin care method in which the skin cosmetic of the present invention is applied to the skin and massaged and washed.

However, the cosmetics of Patent Documents 1 and 2 are designed to keep Next, if the makeup film formed by massage has a higher viscosity, it is difficult to wash off, and the washing effect is also low.

Moreover, the skin cosmetics of Patent Citation 3 cannot form a coating that can be kept on the face for a long time in a wet place such as a bathroom or shower room. Therefore, the skin cosmetics cannot be kept on the skin for a long period of time, and an excellent skin care effect cannot be achieved.

The massage of the present invention is excellent, and can form and maintain a film containing bubbles on the skin during the massage. Furthermore, it is to provide a skin care cosmetic having a formed film having moisturizing properties and cleansing properties.

The present inventors found that in an O/W system containing a large amount of oil agent, the acrylic polymer and the three xanthan gum are used together at a predetermined ratio, and the alkyl ether carboxylic acid or its salt is contained at a predetermined ratio. Apply to the skin and massage to draw in air and contain air bubbles, which can form a white appearance film (white film), which can obtain excellent massage properties (diffusability of diffusion, no slippage), both cleansing and skin Skin cosmetics for maintenance effect. In addition, the formed film can be kept on the skin continuously, thereby maintaining a white appearance. Even if water is mixed into the film, the liquid is not likely to drip, and the white appearance remains unchanged.

Therefore, the skin cosmetics of the present invention can be used, for example, in a wet place such as a bathroom or a shower room, by which a sufficient skin care effect and washing effect caused by massaging can be obtained in the shower or bath.

Hereinafter, the components of the skin cosmetic of the present invention will be described in detail.

<ingredient (A)>

The alkyl ether carboxylic acid or its salt as the component (A) used in the present invention is represented by the following general formula (1).

[化1] RO-(CH ₂ CH ₂ 0) _n CH ₂ -COOX

(In the formula, 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 cation derived from a hydrogen atom, an inorganic base, or an organic base)

In the above general formula, R is preferably an alkyl group having 12 to 16 carbon atoms, and more preferably a mixture having 12 to 14 carbon atoms. In addition, the average addition mole number of ethylene oxide is 0.5 to 10, further preferably 1 to 8, and particularly preferably 2 to 5.

Furthermore, examples of X include: alkali metals such as hydrogen atoms, sodium, and potassium; ammonium; ammonium derived from alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine; and basic amines derived from spermine and lysine. Base acid cations, etc.

The component (A) can be used alone or in combination of two or more. The component (A) tends to foam during massage, and together with the following components (C) and (D), a white film containing foam uniformly is formed on the skin surface. From the viewpoints of the water resistance, cleansing property, massage properties and skin cleansing properties of the coating, the content of component (A) in the skin cosmetic of the present invention is 0.9% by weight or more, preferably 1.8% by weight Above, it is 13.5% by weight or less, preferably 9.0% by weight or less. Summarizing these viewpoints, the content of 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.

<ingredient (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 include: petrolatum, liquid mineral oil, polyolefins, alkanes, and microcrystalline Mineral oils such as wax and paraffin; for example, polysilicone such as siloxane, cyclosilan, alkylsiloxane, polymethylsiloxane, methylphenylpolysiloxane; for example lanolin and its derivatives; Castor oil, cottonseed oil, groundnut oil, corn oil, rice bran oil, rice germ oil, olive oil, almond oil, palm oil, sesame oil, evening primrose oil, safflower oil, Glycerides such as calyx pear oil, coconut oil, jojoba oil and other vegetable oils or their derivatives, caprylic acid/capric acid glyceride, myristic acid/stearic acid glyceride; for example isopropyl myristate, isopalmitic acid Esters formed from alcohol and fatty acid such as propyl ester, isooctyl palmitate, 2-ethylhexyl stearate, butyl stearate, myristyl myristate, and isopropyl alcohol caprate. Among these, from the viewpoint of providing a good skin care effect, improving the affinity effect of the oil agent and the skin, and obtaining an excellent skin softening effect, glycerides, alcohols and fatty acids are preferred The esters formed are more preferably glycerides.

Furthermore, the oil agent of component (B) does not contain the following component (F) linear aliphatic alcohol having 14 to 18 carbon atoms and component (G) linear fatty acid having 14 to 18 carbon atoms.

The component (B) can be used alone or in combination of two or more. Regarding component (B), from the viewpoint of removing dirt on the skin surface and imparting softness and moisturizing effect to the skin, the content of component (B) in the skin cosmetic of the present invention is 3.0% by weight or more, preferably 5.0% by weight or more and 40.0% by weight or less, preferably 30.0% by weight or less. Summarizing these viewpoints, the content of 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.

<ingredient (C)>

Regarding the component (C) Sanxian gum used in the present invention, ECHO GUM T and KELDENT (manufactured by DSP GOKYO FOOD & CHEMICAL Co. Ltd.) can be cited as its commercially available products.

With the component (C), the skin cosmetics are easy to spread on the skin surface when applied to the skin. In addition, by using in combination with the component (A), if massage is performed, air bubbles are drawn in, and a film containing air bubbles can be formed.

The uniformity and stability of the film formed by the air bubbles involved during massage From the viewpoint of water resistance and water resistance of the coating, the content of 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 Weight% or less. Summarizing these viewpoints, the content of 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.

<ingredient (D)>

The component (D) acrylic polymer used in the present invention is a general term for polymers containing acrylic acid and methacrylic acid as constituent units, and may be either a cross-linked type or a non-cross-linked type. It is preferably a cross-linked polymer. For example, an alkyl-modified acrylic polymer or a non-modified acrylic polymer can be used. Further, various commercially available products can be used, for example, as (acrylic acid/ester/C10-30 alkanol acrylate) cross-linked polymer, CARBOPOL ET D2020 (BE), PEMULEN TR-1, PEMULEN TR-2 ( Lubrizol Advanced Materials, Inc., etc., as Carbomer, CARBOPOL 980 POLYMER (BE), CARBOPOL 981 (BE) (manufactured by Lubrizol Advanced Materials, Inc.), etc., as (acrylic (ester)/CETETH- 20 methacrylate) copolymer, ACULYN 22 POLYMER (The Dow Chemical Company) and the like, and as the (acrylic acid ester/methacrylic acid behenyl-25) copolymer, NOVETHIX L-10 Polymer ( Lubrizol Advanced Materials, Inc., etc., as the (acrylic acid/vinyl isostearate) cross-linked polymer, Stabylen 30 (manufactured by 3V SIGMA), etc., may be cited, and polyacrylate-6 cross-linked polymerization Examples include SEPIMAX ZEN (manufactured by SEPPIC). Among these, preferably, acrylics/C10-30 alkanol acrylates and carbomers are used, and more preferably, acrylics/C10-30 alkanol acrylates are mentioned.

Ingredient (D) can improve the massage properties of skin cosmetics Skin cosmetics produce a force to grip the skin, making skin cosmetics less slippery, and can improve the uniformity of the coating.

The component (D) may be used alone or in combination of two or more. The skin cosmetics of the present invention improve the massaging properties of cosmetics, generate gripping force during massage, and are not easy to slip, as well as the uniformity, stability, and water resistance of the formed film. Among them, 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. If these are summarized, 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.

Furthermore, the total content of component (C) and component (D) in terms of having appropriate viscosity, liquidity that is easy to massage, stability of the agent, and prevention of dripping of liquid during coating or after massage [(C )+(D)] is 0.8% by weight or more, preferably 1.2% by weight or more, 3.0% by weight or less, preferably 2.0% by weight. Summarizing these points, the skin cosmetic of the present invention is 0.8 to 3.0% by weight, preferably 1.2 to 2.0% by weight.

In addition, the total content of the component (C) and the component (D) relative to the component (A ) The content ratio [((C)+(D))/(A)] is 0.18~3.33.

Furthermore, in terms of the ease of slippage of the cosmetics 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 The following is preferably 1.5 or less, and more preferably 0.7 or less. If these points are summarized, 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.

<ingredient (E)>

Examples of the component (E) water used in the present invention include deionized water, distilled water, high-purity water, and ultra-high-purity water.

In the cosmetic of the present invention, the content of the component (E) is the residual amount (excluding the entirety of the above components (A) to (D) and the following components (F), component (G) and other components (the whole is set to 100 weight%).

<ingredient (F)>

The skin cosmetics of the present invention may further contain a straight chain of 14 to 18 carbon components (F) in terms of the speed at which the bubbles are drawn into the coating during massage, and the stability and uniformity of the coating Aliphatic alcohol.

Examples of the component (F) linear aliphatic alcohol having 14 to 18 carbon atoms used in the present invention include myristyl alcohol (myristyl alcohol), pentadecyl alcohol, cetyl alcohol (cetyl alcohol), and ten Heptanol, stearyl alcohol (stearyl alcohol). Among them, myristyl alcohol, cetyl alcohol, and stearyl alcohol are preferred.

The component (F) may be used alone or in combination of two or more. The content of component (F) in the skin cosmetic of the present invention is 1.0% by weight or more, preferably 3.0 in terms of the speed at which the bubbles are drawn to form a film, and the stability and uniformity of the film It is 1% by weight or more and 10.0% by weight or less, preferably 5.0% by weight or less. To summarize these points, 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.

<ingredient (G)>

The speed at which the bubbles are drawn into the coating and the stability and uniformity of the coating In terms of uniformity, the skin cosmetic of the present invention may further contain a straight chain fatty acid having a carbon number of 14 to 18 as component (G).

Examples of the component (G) linear fatty acid having 14 to 18 carbon atoms used in the present invention include myristic acid (C14), pentadecanoic acid (C15), palmitic acid (C16), heptadecanoic acid (C17), and hard Fatty acid (C18). Among them, myristic acid, palmitic acid, and stearic acid are preferred.

The component (G) can be used alone or in combination of two or more. The content of component (G) in the skin cosmetic of the present invention is 1.0% by weight or more, preferably 3.0 in terms of the speed at which the bubbles are drawn to form a film, and the stability and uniformity of the film It is 1% by weight or more and 10.0% by weight or less, preferably 7.5% by weight or less. Summarizing these points, 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>

Furthermore, in the skin cosmetics of the present invention, in addition to the above-mentioned components, as long as it does not affect the effect of the present invention, it may contain components used in general skin cosmetics, such as surfactants, moisturizers, etc. other than the component (A), Whitening agent, blood circulation promoter, anti-inflammatory agent, bactericide, ultraviolet absorber, colorant, preservative, antioxidant, fragrance, pH adjuster, chelating agent, etc.

Examples of surfactants other than the component (A) include alkyl sulfates such as sodium polyoxyethylene lauryl ether sulfate, polyoxyethylene lauryl ether ammonium sulfate, fatty acids such as lauric acid, myristic acid, palmitic acid, and alkyl glucoside Glycosides, etc.

From the viewpoint of the stability, moisture retention and cleansability of skin cosmetics, surfactants other than component (A) account for 50% by weight or less in the composition, preferably 25% by weight or less, and more preferably 10% by weight or less, more preferably 1% by weight % Or less, particularly preferably 0.1% by weight or less, and most preferably it does not substantially contain.

The skin cosmetics of the present invention are manufactured by a conventional method, and can be manufactured as O/W-type emulsified cosmetics. The viscosity of the skin cosmetics of the present invention at 30°C is 79dPa. s or more, preferably 90dPa. s, and is 3200dPa. Below s, preferably 1000dPa. s. If these points are summarized, the viscosity of the skin cosmetic of the present invention at 30°C is 79 to 3200 dPa. s, preferably 90~1000dPa‧s. If it is within this range, the skin cosmetic material is not likely to drip liquid after being applied to the skin, and it is easy to spread on the skin during massage and becomes easy to rinse. Furthermore, when filling into a tube-shaped or pump-shaped container or the like, it can be simply extruded without remaining.

Furthermore, in the present invention, the viscosity is a value measured by VISCOMETER TVB-10 (manufactured by Toki Industries Co., Ltd.) at 30°C.

The skin cosmetics of the present invention can be used as massage cosmetics, massage bathing agents, facial masks and other skin cosmetics.

The skin cosmetics of the present invention can be used by applying to the skin, preferably removing the scalp, and more preferably any of the face, body, hands and feet.

<skin care method>

In any case, skin care can be achieved by applying the skin cosmetics of the present invention to the skin, performing massage, and rinsing with water.

Specifically, the cosmetic material of the present invention can be used at the time of bathing, and can also be used other than at the time of bathing, and is preferably used at the time of bathing. In use, the skin cosmetics are applied to the skin and massaged to draw air bubbles. The skin cosmetic material spreads evenly on the skin to form a coating with a white appearance. After that, rinse immediately with water or leave it on the skin for a predetermined period of time, then rinse and cleanse the skin. Skin care effect. Furthermore, massage can be performed directly with the hand, or with props such as sponges.

In addition, specifically, the cosmetic of the present invention can be used at the time of bathing, or can be used other than at the time of bathing, and is preferably used at the time of bathing. At the time of use, the skin cosmetics are applied to the skin and massaged to draw air bubbles. The skin cosmetic material spreads evenly on the skin to form a coating with a white appearance. After that, rinse immediately with water or keep it on the skin for a predetermined period of time, preferably for 1 to 600 seconds, more preferably for 10 to 300 seconds, further preferably for 50 to 300 seconds, and then rinse. Wash the skin and get good skin care effect. Furthermore, massage can be performed directly with the hand, or with props such as sponges.

In addition, the present invention provides a washing method for applying the skin cosmetic of the present invention to the skin and washing. In particular, the present invention provides a washing method of applying the skin cosmetics of the present invention to the skin, spreading the skin cosmetics on the skin, and rinsing with water. Furthermore, the present invention provides a method for applying the skin cosmetics of the present invention to the skin and applying the skin cosmetics to the skin. After the required time is maintained, it is preferably maintained for 1 to 600 seconds, more preferably for 10 to 300 seconds. Furthermore, a washing method of washing with water after washing for 50 to 300 seconds is preferable.

Furthermore, it provides a method of applying the skin cosmetics of the present invention to the skin to impart moisture to the skin.

With regard to the above-mentioned embodiments, the following will further disclose preferred embodiments of the present invention.

<1>

A skin cosmetic containing the following components (A) to (E): (A) Alkyl ether carboxylic acid or its salt 0.9-13.5% by weight (B) Oil agent 3.0-40.0% by weight (C) Sanxian gum 0.3-1.9% by weight (D) Acrylic polymer 0.35-1.5% by weight ( E) Water, the total content of components (C) and (D) [(C)+(D)] is 0.8 to 3.0% by weight, the total content of components (C) and (D) relative to the weight of component (A) The ratio [((C)+(D))/(A)] is 0.18~3.33, and the content ratio of component (C) to component (D) [(C)/(D)] is 0.25~3.0.

<2>

Skin cosmetics such as <1>, wherein the oil of component (B) is an oil other than component (F) linear aliphatic alcohol having 14 to 18 carbon atoms and component (G) linear alcohol having 14 to 18 carbon atoms Agent.

<3>

Skin cosmetics such as <1> or <2>, wherein the alkyl group of component (A) has a carbon number of 10 to 18, preferably 12 to 16, more preferably 12 to 14.

<4>

The skin cosmetics according to any one of <1> to <3>, wherein the content of component (A) is preferably 1.8 to 9.0% by weight.

<5>

Skin cosmetics according to any one of <1> to <4>, wherein the content of component (B) It is preferably 5.0 to 30.0% by weight.

<6>

The skin cosmetics according to any one of <1> to <5>, wherein the content of component (C) is preferably 0.4 to 1.2% by weight.

<7>

The skin cosmetics according to any one of <1> to <6>, wherein the content of component (D) is preferably 0.6 to 1.0% by weight.

<8>

The skin cosmetics according to any one of <1> to <7>, wherein the total content of component (C) and component (D) [(C)+(D)] is preferably 1.2 to 2.0.

<9>

The skin cosmetics according to any one of <1> to <8>, wherein the content ratio (C)/(D) of component (C) relative to component (D) is preferably 0.5 to 1.5, more preferably 0.5 to 0.7.

<10>

The skin cosmetic according to any one of <1> to <9>, which further contains a linear aliphatic alcohol having a carbon number of 14 to 18 as component (F).

<11>

Skin cosmetics such as <10>, wherein the above component (F) is selected from myristyl alcohol, whale One or more of wax alcohol and stearyl alcohol.

<12>

The skin cosmetic as described in <10>, wherein the content of the component (F) 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.

<13>

The skin cosmetic according to any one of <1> to <12>, which further contains a straight chain fatty acid having a carbon number of 14 to 18 as component (G).

<14>

The skin cosmetic as described in <13>, wherein the above component (G) is one or more selected from myristic acid, palmitic acid, and stearic acid.

<15>

The skin cosmetic as described in <13>, wherein the content of component (G) is 1.0 to 10.0% by weight, preferably 3.0 to 7.5% by weight.

<16>

Such as <1> to <15> any one of the skin cosmetics, wherein the viscosity at 30 ℃ is 79 ~ 3200dPa. s, preferably 90~1000dPa. s.

<17>

A skin care method that transforms skin like any of <1> to <16> Makeup is applied to the skin, massaged and washed.

<18>

A skin care method that applies the skin cosmetics as described in any one of <1> to <16> to the skin, massages it, and keeps it on the skin for a predetermined period of time before washing.

<19>

A skin care method, which applies the skin makeup as described in any one of <1> to <16> diagonally to the skin, massages it, and keeps it on the skin for a predetermined time, preferably for 1 to 600 seconds, more preferably After holding for 10 to 300 seconds, and more preferably for 50 to 300 seconds, washing is performed.

<20>

A cleansing method which applies the skin cosmetics according to any one of <1> to <16> to the skin for cleansing.

<21>

A washing method which applies the skin cosmetics as described in any one of <1> to <16> to the skin, spreads the skin cosmetics on the skin, and rinses with water.

<22>

The present invention provides a washing method, which applies the skin cosmetics according to any one of <1> to <16> to the skin, so that the skin cosmetics are spread on the skin, and it is preferably maintained after the required time 1 to 600 seconds, preferably 10 to 300 seconds, and more preferably 50 to 300 seconds, rinsed with water.

<23>

The present invention provides a washing method which applies the skin cosmetics according to any one of <1> to <16> to the skin to moisturize the skin.

[Example 1]

Hereinafter, Examples and Comparative Examples will be listed to further explain the present invention in detail. However, the present invention is not limited to the following examples. Furthermore, the amount of each component is% by weight.

[Examples 1 to 68, Comparative Examples 1 to 12]

The skin cosmetics having the composition shown in Tables 1 to 12 are manufactured by the following manufacturing method, and the viscosity of the skin cosmetics, the massage properties, and the air-involved coating formed by the air during massage are evaluated according to the following evaluation criteria (White coating), and the water resistance of the coating. The results are shown in Tables 1-12.

<Manufacturing method>

First, at room temperature, the component (C) is dispersed in a part of the component (E) by a high-speed stirrer to form phase B. Then, the component (D) is dispersed in the remaining component (E) by a high-speed stirrer to form phase A. Furthermore, the component (A), the component (B), and optionally the component (F) and/or the component (G) are mixed at 70 to 80°C to form the C phase.

Then, add other components such as L-arginine and sodium hydroxide to Phase A, and mix at 70-80°C for 20 minutes at 200 rpm. Next, add phase B to phase A and mix for 10 minutes under the same conditions. Thereafter, phase C was mixed with phase A and mixed under the same conditions for 20 minutes. Finally, it was cooled to room temperature with ice water to obtain an O/W-type emulsified composition, and made into skin cosmetics used in Examples and Comparative Examples.

<Measurement of viscosity>

The measurement conditions of viscosity are as follows.

The sample was placed in a thermostat at a temperature of 30°C: 30°C ± 1°C for 1 hour, and then measured.

Viscometer: VISCOMETER TVB-10 (manufactured by Toki Industry Co., Ltd.)

Use Helipath bracket

Rotor speed: T-B/5rpm

Measurement time: 1 minute

<evaluation criteria> 1. Massage

Put 1g of the skin cosmetics sample on the nail of the hand, use the finger massage, a professional functional inspector as the evaluator, score each sample on the following criteria with a score of 1-5, and massage the skin cosmetics The two items of "Easy to Wipe" and "Easy to Massage without Slipping" were scored separately to comprehensively evaluate the massage properties of skin cosmetics.

(1) Ease of wiping

5: Very easy to wipe off.

4: Easy to wipe off.

3: Neither.

2: Not easy to open.

1: Very difficult to wipe off.

(2) The ease of massage without slipping

5: No surface slippage at all, easy to massage.

4: No surface slip, easy to massage.

3: Slight surface slip, but easy to massage.

2: The surface is slippery and not easy to massage.

1: The surface is quite slippery and not easy to massage.

2. <Make the air into the film formed during massage>

The following methods were used to evaluate the three items of "skin forming speed (seconds)", "uniformity" and "stability" of skin cosmetics to be involved in the formation of the film during massage, and comprehensive evaluation of skin cosmetics to massage The film formed at the time.

(1) Film formation speed (seconds)

Put 1g of skin cosmetics sample on the nail of the picking hand, massage with the fingertips at 1.5 cycles/second, and record that the appearance of the film formed by the air bubbles involved becomes no more than that after the massage is started by rotating Time until white (unit: seconds).

(2) Uniformity of coating

Put 1g of the skin cosmetic sample on the nail of the hand, and massage it with the fingertips at 1.5 cycles/second for 45 seconds to entrap the air bubbles to form a film. A professional functional inspector is the evaluator based on the following criteria Visually inspect the appearance of the film, and score 1 to 5 on each sample.

5: The coating is milky white, and the material is very uniform and fine.

4: The coating is milky white, and the material is uniform and fine.

3: The coating is slightly milky and the material is slightly thick.

2: The coating is slightly milky white, and the material is thicker.

1: The coating does not appear milky white, and the material is very thick.

(3) Stability of the film containing bubbles

Put 1g of skin cosmetics sample on the nail of the hand, and massage it with the fingertips at 1.5 cycles/second for 45 seconds to make the air bubbles wrap to form a coating. Afterwards, keep it on the nail for 5 minutes. The inspector is the evaluator. Next, the appearance of the film is visually evaluated on the following criteria, and each sample is scored with a score of 1 to 5.

5: The persistence of the coating is very high, maintaining a white appearance.

4: The persistence of the coating is high, and the white appearance is basically maintained.

3: The persistence of the coating is not high, and the white appearance changes slightly.

2: The persistence of the coating is poor, and the white appearance changes greatly.

1: The coating disappeared, the white appearance disappeared, and liquid dripped.

3. <Water resistance of the coating>

Use the following method to evaluate the "water resistance of the film" formed during the massage of the skin cosmetics, and comprehensively evaluate the water resistance of the film formed during the massage of the skin cosmetics.

(1) The resistance of the coating to water

Put 1g of the skin cosmetic sample on the nail of the hand, and massage it with the fingertips at 1.5 cycles/second for 45 seconds to entrap air bubbles to form a coating. Thereafter, it took 15 seconds to inject 100 ml of water at 30°C. A professional functional inspector is the evaluator, based on the following The white appearance of the coating was quasi-visually evaluated, and each sample was scored on a scale of 1 to 5.

5: The coating is stably maintained. Continue to maintain a white appearance.

4: The coating is maintained. Maintain a white appearance.

3: The appearance of the coating is slightly changed. The white appearance changed slightly.

2: A part of the film flows through. The appearance of white changes greatly.

1: The outline of the film disappears, and there are traces of the film flowing through. The white appearance disappeared and liquid dripped.

From Table 1, it can be seen that the skin cosmetics of the comparative examples do not contain at least one of component (A), component (C) or component (D), so regarding the massage properties, the film formed by entrapment of air bubbles during massage And the evaluation of the water resistance of the coating is worse than the examples in all items.

From Tables 2 to 4, it can be seen that the total content of component (C) and component (D) in the skin cosmetics of the comparative example [(C)+(D)], or the total of component (C) and component (D) The content ratio [((C)+(D))/(A)] of the content with respect to the component (A) is outside the scope of the present invention, so regarding the massage property, the film and the film formed by entrapment of air bubbles during massage The evaluation of water resistance is worse than the examples in all items.

In addition, it can be seen that the total content of component (C) and component (D) [(C)+(D)] or the content ratio of the total content of component (C) and component (D) relative to component (A) [ ((C)+(D))/(A)] In the case of skin cosmetics within the scope of the present invention, excellent massage properties can be obtained, air bubbles can be involved during massage to form an excellent film, and the film The water resistance is excellent.

According to Table 4, it can be known that when the content of the component (D) is a skin cosmetic material within the scope of the present invention, excellent massage properties can be obtained, and bubbles can be involved during massage to form an excellent film, and the film Excellent water resistance.

Furthermore, if the content of the component (D) is within the preferred range of the present invention, more excellent massage properties, uniformity and stability of the coating, and resistance of the coating to water can be obtained.

According to Table 5, the content of the component (A) in the skin cosmetics of the comparative example is outside the scope of the present invention. Therefore, regarding the massage properties, the film formed by entrapment of air bubbles during massage and any water resistance of the film The evaluation of one item is worse than the examples.

In addition, it can be seen that when the component (A) is a skin cosmetic material within the scope of the present invention, excellent massage properties can be obtained, air bubbles can be involved during massage to form an excellent coating, and the coating has excellent water resistance .

According to Table 6, it can be seen that when the content of the component (B) is a skin cosmetic material within the scope of the present invention, excellent massage properties can be obtained, air bubbles can be involved during massage to form an excellent film, and the film The water resistance is excellent.

Furthermore, if the content of the component (B) is within the preferred range of the present invention, more excellent uniformity of the coating and water resistance of the coating can be obtained.

From Table 7, it can be seen that when the content of the component (C) is within the range of the skin cosmetics of the present invention, excellent uniformity and stability of the coating can be obtained.

Furthermore, if the component (C) is within the preferred range of the present invention, more excellent uniformity and stability of the coating and water resistance of the coating can be obtained.

According to Table 8, in the skin cosmetics of the comparative example, the content ratio (C)/(D) of the component (C) to the component (D) is outside the scope of the present invention. The evaluation of the film formed by the involvement and the water resistance of the film is inferior to the examples in all items.

In addition, when the content ratio (C)/(D) of the component (C) to the component (D) is a skin cosmetic material within the scope of the present invention, the cosmetic material does not slip during massage, and air is used during massage. The speed of drawing in the formed film becomes faster, and the formed film has excellent uniformity, stability, and water resistance of the film.

According to Table 9, it can be seen that in the skin cosmetics of the present invention, the acrylic polymer of component (D) can generally be used, and excellent massage properties can be obtained. Air bubbles can be involved during massage to form an excellent coating, and the coating is water-resistant Excellent power. In the case of the skin cosmetics of the present invention, when acrylic/C10-30 alkanol acrylate cross-linked polymer or carbomer is used, the uniformity of the coating formed by entrapment of air bubbles during massage is more Excellent.

According to Table 10, it can be seen that the skin cosmetics of the present invention, by further containing the component (F) and/or component (G), improve the skin cosmetics of the present invention during massage The speed at which air is drawn into the formed film and the stability of the film.

According to Table 11, it can be seen that by further containing the component (F) in the skin cosmetic of the present invention, the speed of the skin cosmetic of the present invention to entrap air into the coating formed during massage and the stability of the coating can be improved. With regard to the skin cosmetics of the present invention, if the component (F) is within a preferable range, a faster film formation speed and more excellent film stability can be obtained.

According to Table 12, it can be seen that by further containing the component (G) in the skin cosmetic of the present invention, the speed of the skin cosmetic of the present invention to entrap air into the formed film during massage and the stability of the film can be improved.

Furthermore, regarding the skin cosmetics of the present invention, if the component (G) is within a preferable range, a faster film forming speed and more excellent film stability can be obtained.

(Note) The ingredients in Tables 1 to 12 are the following.

Polyoxyethylene (5) lauryl ether carboxylic acid ^*1 : AKYP 1984520 RLM 45 CA (90%), manufactured by Kao Chemicals mbH.

Caprylic acid/caprylic acid/capric acid triglyceride ^*2 : COCONAD MT, manufactured by Kao Corporation.

Sanxian gum ^*3 : manufactured by ECHO GUM T, DSP GOKYO FOOD & CHEMICAL Co., Ltd.

Acrylic (ester)/C10~30 alkanol acrylate cross-linked polymer 1) ^{* 4} : CARBOPOL ETD2020 (BE), manufactured by Lubrizol Advanced Materials, Inc.

Acrylic (ester)/C10~30 alkanol acrylate cross-linked polymer 2) ^{* 5} : manufactured by PEMULEN TR-1 Lubrizol Advanced Materials, Inc.

Acrylic (ester)/C10~30 alkanol acrylate cross-linked polymer 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 acid/steareth-20 methacrylate copolymer ^{* 9} : Aculyn 22 (30%), manufactured by The Dow Chemical Company.

Acrylic acid/ester polyether-25 methacrylate copolymer ^{* 10} : NOVETHIX L-10 (40%), manufactured by Lubrizol Advanced Materials, Inc.

Acrylic acid/vinyl isostearate cross-linked polymer ^{* 11} : manufactured by Stabylen 30, 3V SIGMA.

Polyacrylate-6-6 cross-linked polymer ^{* 12} : manufactured by SEPIMAX ZEN and SEPPIC.

Myristyl alcohol ^*13 : KALCOL 4098, manufactured by Kao Corporation.

Cetyl alcohol ^{* 14} : CETYL ALCOHOL NX, manufactured by Kokyu Alcohol Kogyo Co., Ltd.

Stearyl alcohol ^*15 : STEARYL ALCOHOL NX, manufactured by Kokyu Alcohol Kogyo Co., Ltd.

Myristic acid ^{* 16} : PALMAC 98-14, manufactured by ACIDCHEM INTERNATIONAL SDN.BHD.

Palmitic acid ^*17 : PALMAC 98-16, manufactured by ACIDCHEM INTERNATIONAL SDN.BHD.

Stearic acid ^{* 18} : PALMAC 98-18, manufactured by ACIDCHEM INTERNATIONAL SDN.BHD.

Claims (9)

A skin cosmetic material containing the following components (A) to (E): (A) General formula (1) [Chem 1] RO-(CH ₂ CH ₂ 0) _n CH ₂ -COOX (where R represents carbon Alkyl groups of 10 to 18, n represents an average of 0.5 to 10, X represents a cation derived from a hydrogen atom, an inorganic base or an organic base) alkyl ether carboxylic acid or its salt represented by 0.9 to 13.5% by weight; ( B) One or more oil agents selected from mineral oil, silicone oil, lanolin or its derivatives, vegetable oil or its derivatives, glycerides, esters formed from alcohols and fatty acids 3.0 to 40.0% by weight; (C) Sanxian gum 0.3~1.9% by weight; (D) Cross-linked polymer from (acrylic acid esters/C10-30 alkanol acrylates), carbomer, (acrylic acid esters/CETETH-20 (Methacrylate) copolymer, (acrylic acid/behenyl methacrylate-25) copolymer, (acrylic acid/vinyl isostearate) cross-linked polymer, polyacrylate- 6 More than one acrylic polymer selected from the cross-linked polymer is 0.35 to 1.5% by weight; (E) water; the total content of components (C) and (D) (C) + (D) is 0.8 to 3.0% by weight, The weight ratio ((C)+(D))/(A) of the total content of components (C) and (D) relative to component (A) is 0.18~3.33, and the content of component (C) relative to component (D) The ratio [(C)/(D)] is 0.25 to 3.0. The skin cosmetics according to claim 1, wherein the oil of component (B) is a straight chain aliphatic alcohol with a carbon number of 14 to 18 for component (F) and a straight chain fatty acid with a carbon number of 14 to 18 for component (G) Outside the oil. The skin cosmetic according to claim 1, which further contains a straight chain aliphatic alcohol having a carbon number of 14 to 18 as component (F). The skin cosmetic according to claim 3, wherein the content of the component (F) is 1.0 to 10.0% by weight. The skin cosmetic as claimed in claim 1, which further contains a straight chain fatty acid having a carbon number of 14 to 18 as component (G). The skin cosmetic according to claim 5, wherein the content of the component (G) is 1.0 to 10.0% by weight. Such as the skin cosmetics of claim 1, wherein the viscosity at 30 ℃ is 79 ~ 3200dPa. s. A skin care method that applies the skin cosmetic material according to any one of claims 1 to 7 to the skin, massages and cleanses. A skin care method that applies the skin cosmetics of any one of claims 1 to 7 to the skin, massages it, and keeps it on the skin for 1 to 300 seconds before washing.