JP2020105080A - Method for expanding skin area to be wiped in skin cleaning - Google Patents

Abstract

To provide methods for imparting a sufficient refreshing feeling even if the area of the skin site to be wiped is widened, in the skin cleaning using a skin cleaning tool in which a wipe, such as cosmetic cotton, is impregnated with a skin cleaning composition.SOLUTION: A skin cleaning tool in which a wipe, such as cotton for makeup, is impregnated with a skin cleaning composition that contains polyethylene glycol together with 8 to 20 wt.% of ethanol has improved durability of the effect of imparting a refreshing feeling, and can impart a sufficient refreshing feeling even if the area of the skin site to be wiped is widened.SELECTED DRAWING: None

Description

The present invention relates to a method of enlarging a skin area to be wiped in the skin cleaning using a skin cleaning tool.

BACKGROUND ART A skin-cleaning composition is widely used as a skin care product that removes sebum and dirt on the skin to make the skin hygienic. In addition to the effect of removing sebum and dirt on the skin, a composition for cleaning skin is required to have a refreshing feeling during cleaning in order to obtain the actual effect. Since ethanol has an excellent degreasing action, it is effective in removing sebum and dirt, and can give a refreshing feeling of use, and is therefore widely used as a blending component of a skin cleansing composition.

In order to improve the effect of removing sebum and dirt on the skin and the refreshing feeling after wiping, it is effective to add ethanol at a high concentration to the skin wiping composition. However, since ethanol has a skin irritant property, there is a limit to improving the effect of removing sebum and dirt and the feeling of freshness during wiping with ethanol alone. Therefore, Patent Document 1 discloses an external composition for skin containing diethylene glycol monoether and/or triethylene glycol monoether having a specific structure as a preparation in which the amount of ethanol blended is reduced or the feeling of use is enhanced without blending ethanol. Proposed. However, the formulation described in Patent Document 1 does not yet have satisfactory performance because it also reduces the feeling of freshness during wiping.

Furthermore, conventionally, the composition for skin cleansing is used in a state in which it is impregnated into a wiping implement such as cotton for cosmetics, but the area of the skin site to be wiped is widened or the skin site is cleaned. There is a drawback in that the feeling of refreshing may be diminished if it is repeatedly used for wiping other skin parts as it is after once performing.

JP, 2008-50272, A

An object of the present invention is to clean the skin using a skin cleaning tool obtained by impregnating the skin cleaning composition with a cleaning tool such as cotton for cosmetic use, even if the area of the skin site to be cleaned is expanded. The purpose is to provide a method for imparting a sufficient refreshing feeling.

The present inventor has conducted diligent studies to solve the above problems, and impregnated a wipe such as cosmetic cotton with a skin cleansing composition containing polyethylene glycol together with 8 to 20% by weight of ethanol. It has been found that the skin cleansing tool has improved durability of the effect of imparting a refreshing feeling, and can provide a sufficient refreshing feeling even if the area of the skin site to be wiped is widened. The present invention has been completed by further studies based on such findings.

That is, the present invention provides the inventions of the following modes.
Item 1. A method for expanding a skin area to be wiped by a skin wiper,
In said skin cleaning, the said method which uses the skin cleaning composition which ethanol 8-20 weight% and polyethylene glycol impregnate in the wipe, The said method.
Item 2. Item 2. The method according to Item 1, wherein the polyethylene glycol has an average molecular weight of 200 to 20,000.
Item 3. Item 3. The method according to Item 1 or 2, wherein the wiper is a cosmetic cotton.
Item 4. Item 4. The method according to any one of Items 1 to 3, wherein the skin is wiped in an area that is 30 times or more the area of the contact surface with the skin of the skin wiper.
Item 5. Item 5. The method according to any one of Items 1 to 4, wherein one skin cleaning tool is used to clean two or more different skin sites.
Item 6. It is a method to expand the range to realize the cleaning effect when cleaning the skin,
In said skin cleaning, the said method which uses the skin cleaning composition which ethanol 8-20 weight% and polyethylene glycol impregnate in the wipe, The said method.
Item 7. A method for maintaining a refreshing feeling-providing effect in a skin cleansing composition, which comprises adding 8 to 20% by weight of ethanol and polyethylene glycol to the skin cleansing composition.

According to the method of the present invention, when the skin is wiped using the skin wiper in which the wiper is impregnated with the skin wiper composition, even if the area of the skin site to be wiped is widened. , Because it gives a sufficient refreshing feeling, you can wipe a wide range of skin parts at once, or you can use one skin wiper repeatedly for different skin parts. The convenience of time can be improved.

1. A method for expanding a skin area to be wiped by a skin wiper A method of the present invention is a method for expanding a skin area to be wiped by a skin wiper, wherein 8 to 20% by weight of ethanol is used for cleaning the skin. , And a skin-cleaning composition in which a wipe is impregnated with a skin-cleaning composition containing polyethylene glycol. In the present invention, “enlargement of the skin area to be wiped by the skin wiper” means that when the skin is wiped using the skin wiper, a wide range of skin sites are wiped at once. Or repeatedly used to wipe two or more skin areas. Hereinafter, the method of the present invention will be described in detail.

[Skin-cleaning composition]
In the method of the present invention, the composition for cleaning skin to be impregnated in the wiping tool contains 8 to 20% by weight of ethanol and polyethylene glycol. As described above, by using the skin cleansing composition containing 8 to 20% by weight of ethanol and polyethylene glycol, the sustainability of the effect of imparting a refreshing feeling in the skin cleansing device is improved, and the composition is to be cleaned. It becomes possible to give a sufficient refreshing feeling even if the area of the skin site is expanded.

-Ingredients The composition for cleaning skin used in the present invention contains 8 to 20% by weight of ethanol. Since ethanol is contained at such a concentration, a refreshing feeling can be sufficiently realized after the skin is wiped. From the viewpoint of more suitably providing the effect of removing sebum and dirt on the skin and the refreshing feeling after wiping, the concentration of ethanol in the composition for skin wiping of the present invention is preferably 8 to 17% by weight. %, more preferably 10 to 15% by weight, and particularly preferably 11 to 13% by weight.

The skin cleansing composition used in the present invention further comprises polyethylene glycol. By including polyethylene glycol, the durability of the effect of giving a refreshing feeling is improved, and when wiping with the wiper impregnated, the area of the skin part to be wiped is expanded or repeatedly used. Even if you do, it is possible to achieve a sufficient refreshing feeling.

The average molecular weight of the polyethylene glycol used in the present invention is not particularly limited, and examples thereof include about 200 to 20,000, preferably about 1000 to 20,000, and more preferably about 2,000 to 20,000. As the polyethylene glycol used in the present invention, specifically, polyethylene glycol 200, polyethylene glycol 300, polyethylene glycol 400, polyethylene glycol 600, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 1540, polyethylene glycol 2000, polyethylene glycol 3350. , Polyethylene glycol 4000, polyethylene glycol 6000, polyethylene glycol 8000, polyethylene glycol 9000, polyethylene glycol 11000, polyethylene glycol 12000, polyethylene glycol 20000 and the like can be used. Among these polyethylene glycols, polyethylene glycol 200, polyethylene glycol 400, polyethylene glycol 4000, polyethylene glycol 6000 and polyethylene glycol 20000 are preferable from the viewpoint of further improving the sustainability of the effect of imparting a refreshing feeling.

The concentration of polyethylene glycol in the skin cleansing composition used in the present invention is, for example, 0.1 to 3% by weight. From the viewpoint of further improving the sustainability of the effect of imparting a refreshing feeling, the concentration of polyethylene glycol in the skin cleansing composition of the present invention is preferably 0.3 to 2% by weight, more preferably 0.5. Up to 1% by weight.

The skin cleansing composition used in the present invention may further contain propylene glycol. Moisturizing properties can be imparted when propylene glycol is further contained. The concentration of propylene glycol in the skin cleansing composition of the present invention is not particularly limited, but is, for example, 0.1 to 30% by weight, preferably 0.5 to 20% by weight, more preferably 1 to 10% by weight. Are listed.

The skin cleansing composition used in the present invention may further contain glycerin. Moisturizing properties can be imparted when glycerin is further contained. The concentration of glycerin in the skin cleansing composition of the present invention is not particularly limited, but is, for example, 0.1 to 30% by weight, preferably 0.5 to 20% by weight, more preferably 1 to 10% by weight. Can be mentioned.

Further, the skin-cleaning composition used in the present invention preferably contains water as a base. The content of water in the composition for cleaning skin of the present invention may be the balance other than the components to be blended, but is, for example, 10 to 91.9% by weight, preferably 15 to 89.7% by weight, and further It is preferably 20 to 88.5% by weight.

The skin cleansing composition used in the present invention may contain, in addition to the above-mentioned components, if necessary, pharmacological components, additives and the like used in ordinary skin cleansing compositions. ..

Examples of the pharmacological component that can be added to the skin cleansing composition used in the present invention include antibacterial or bactericidal agents (isopropylmethylphenol, hinokitiol, chlorhexidine hydrochloride, chlorhexidine gluconate, triclosan, lysozyme chloride, sulfadiazine, benza chloride). Ruconium, decalinium chloride, benzethonium chloride, cetylpyridinium chloride, etc.), antihistamines (chlorpheniramine maleate, etc.), local anesthetics (procaine, tetracaine, bupipacaine, mepipacaine, chloroprocaine, proparacaine, meprilukaine or salts thereof, Orthocaine, oxesazein, oxypolyentoxydecane, funnel extract, percamine pase, tesitdecitin, etc.), anti-inflammatory agents (dipotassium glycyrrhizinate, glycyrrhetinic acid, allantoin, ε-aminocaproic acid, indomethacin, felbinac, diclofenac sodium, loxoprofen sodium, etc.), skin protection Agents (colodion, castor oil, etc.), blood circulation promoting components (nonyl acid vanillyl amide, nicotinic acid benzyl ester, capsaicin, capsicum extract, etc.), cooling agents (menthol, camphor, etc.), mucopolysaccharides (sodium chondroitin sulfate, glucosamine, etc.) Etc. These pharmacological components may be used alone or in combination of two or more. When these pharmacological components are contained, the content thereof may be appropriately set depending on the type of the pharmacological component to be used, the expected effect and the like.

Examples of the additive that can be added to the skin cleansing composition used in the present invention include monohydric lower alcohols other than ethanol (propanol, isopropanol, butanol, etc.) and polyhydric alcohols other than the above (ethylene glycol, 1,3-butylene glycol, isoprene glycol, diethylene glycol, dipropylene glycol, polypropylene glycol, etc., surfactants (nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants) Activator), preservative (methylparaben, propylparaben, benzoic acid, sodium benzoate, sorbic acid, etc.), flavoring agent (citral, 1,8-cionele, citronellol, farnesol, etc.), coloring agent (tar pigment (brown 201) No., Blue No. 201, Yellow No. 4, Yellow No. 403, etc.), cocoa pigment, chlorophyll, aluminum oxide, etc.), a thickener (polyvinylpyrrolidone, sodium alginate, ethyl cellulose, hydroxypropylmethyl cellulose, sodium carboxymethyl cellulose, xanthan gum, carrageenan, etc. ), pH adjusting agents (phosphoric acid, hydrochloric acid, citric acid, sodium citrate, succinic acid, tartaric acid, sodium hydroxide, potassium hydroxide, triethanolamine, triisopropanolamine, etc.), wetting agents (sodium dl-pyrrolidone carboxylate) Liquid, D-sorbitol liquid, etc.), stabilizer (dibutylhydroxytoluene, butylhydroxyanisole, sodium edetate, sodium metaphosphate, L-arginine, L-aspartic acid, DL-alanine, glycine, sodium erysorbate, gallic acid Propyl, sodium sulfite, sulfur dioxide, chlorogenic acid, catechin, rosemary extract, etc.), antioxidants, ultraviolet absorbers, chelating agents, adhesives, buffers, solubilizers, solubilizers and other additives. To be These additives may be used alone or in combination of two or more. The content of these additives can be appropriately set according to the formulation form and the like.

- the shape of the skin Qing拭用compositions for use in the formulation the present invention is not particularly limited, easy shape used to wipe the skin, is preferably easily shaped impregnating the particular wiping device, Specifically, it is preferably liquid or semisolid (gel, ointment, paste).

Specific examples of the formulation of the skin cleansing composition used in the present invention include solutions, emulsions, lotions, gels, ointments, creams and the like. Among these formulation forms, liquids, emulsions and lotions are preferable.

[Wiping tool]
In the present invention, the wiping tool impregnated with the composition for cleaning skin is not particularly limited as long as it can be used for cleaning the skin, but for example, cosmetic cotton, cosmetic puff, non-woven sheet, Woven sheet (gauze etc.), sponge etc. are mentioned. The constituent material of these wiping tools is not particularly limited and may be, for example, any of natural fibers, regenerated fibers, semi-synthetic fibers, synthetic fibers, synthetic resins, etc. From the viewpoint of, natural fibers are preferable, and cotton is more preferable.

Among these wiping tools, from the viewpoint of the feeling of use during wiping, preferred are cotton for makeup, non-woven fabric sheet, and more preferably cotton for makeup.

[Skin cleaning tool]
In the method of the present invention, the skin is wiped using a skin wiper in which the wiper composition is impregnated in the wiper. The amount of the skin-cleaning composition impregnated into the wiping device is not particularly limited, and, like the conventional skin-cleaning device, is appropriately within a range capable of skin-cleaning depending on the material of the wiping device and the like. Just set it.

[Cleaning the skin]
In the method of the present invention, the skin is wiped using the skin wiper.

The skin to which the wiping is applied may be a skin part where removal of sebum and dirt is required, and examples thereof include the face, neck, hands, arms and legs, and the face is preferable.

In the method of the present invention, the skin area to be wiped by the skin wiper is enlarged, so that a wide range of skin sites can be wiped at once, or one skin wiper can be used for different skin sites. It can be used repeatedly.

More specifically, in the method of the present invention, for example, about 30 times or more, preferably about 35 to 80 times, more preferably 40 to about the area of the wiping tool (the area of the surface of the wiping tool that contacts the skin). It is possible to wipe the skin of about 50 times the area at one time. In addition, in the method of the present invention, for example, two or more skin sites such as the right cheek, the left cheek, the forehead, the chin, the neck, the right hand, and the left hand can be repeatedly wiped.

2. Method for enlarging the range in which the effect of cleaning the skin is realized The present invention further includes a range in which the effect of cleaning the skin is realized by wiping the skin using the skin cleaning tool. Provide a way to expand. In the present invention, "enlarging the range in which the cleaning effect is actually felt at the time of cleaning the skin" means that when the skin is cleaned using a skin cleaning tool, a refreshing feeling of the skin can be realized. It refers to expanding the range, for example, to give a refreshing sensation to a wide skin site at once, or to repeatedly impart a refreshing sensation to two or more skin sites. , As described in the section of "1. Method of enlarging skin area to be wiped by skin wiper".

3. Method for sustaining the effect of imparting a refreshing feeling of use The present invention is further a method for maintaining the effect of imparting a refreshing feel of use in a composition for cleaning skin, wherein the composition for cleaning skin has ethanol. A method of incorporating 8 to 20% by weight and polyethylene glycol is provided. The components and concentrations used in the method, the formulation form of the composition for skin cleansing, the method of use, etc. are described in the section of "1. Method for expanding skin area to be wiped by skin cleansing tool" above. On the street.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not construed as being limited to these Examples.

Test example 1
A composition for skin cleansing (skin lotion for skin) having the composition shown in Tables 1 and 2 was prepared and applied to a cosmetic cotton (100% cotton, 3.5 cm×5 cm, 2 plies: 0.2 g). A skin-cleaning device was obtained by impregnating 0.8 ml (400% impregnation) of the skin-cleaning composition.

Using the obtained skin-cleaning tool, a refreshing feeling (at the time of first use), a refreshing feeling (after repeated use), a degree of stickiness, and an irritating property were evaluated by 10 professional evaluation panelists.

After washing the face, half of the face was wiped with a skin-cleaning tool about three times. After the wiping operation, the refreshing feeling (first time) and the irritation during the wiping operation were scored according to the following criteria. In addition, after wiping operation on half of the face, using the skin wiper as it is, wiping operation on the other half of the face that has not been wiped, feels refreshed (repeated use). The latter) was also scored according to the following criteria.
<Criteria for refreshing feeling after first and repeated use>
5 points: A refreshing feeling of use was fully felt.
4 points: A refreshing feeling of use was felt to some extent.
3 points: I felt a little refreshing feeling.
2 points: I did not feel a refreshing feeling.
1 point: No refreshing feeling was felt at all.
<Stimulation criteria>
3 points: No irritation was felt.
2 points: There was some irritation.
1 point: I felt a strong stimulus.

Then, the total value of the scores of each item of 10 professional evaluation panelists was calculated and judged according to the following criteria.
<A refreshing feeling after the first and repeated use>
⊚: The total score is 40 to 50 points (a level where a refreshing feeling can be fully felt)
○: The total score is 31 to 39 points (a level where a refreshing feeling can be felt to some extent)
Δ: Total score of 25 to 30 points (a level where a refreshing feeling is not felt very much)
X: Total score of 10 to 24 points (a level where no refreshing feeling is felt)
<Stimulation>
⊚: The total score is 28 to 30 points (a level with no irritation)
◯: Total score of 24 to 27 points (level at which stimulation is hardly noticeable)
Δ: Total score of 20 to 23 points (level at which slight irritation is felt)
X: Total score of 10 to 19 points (level at which strong irritation is felt)

The results are shown in Tables 1 and 2. With the composition for cleaning skin, which did not contain ethanol, the refreshing feeling was insufficient even after the first use (Comparative Example 6). The skin-cleaning composition containing 5% by weight of ethanol without containing polyethylene glycol had an insufficient refreshing feeling at the first use, and after repeated use, the refreshing feeling was not felt at all. Furthermore, even with a skin-cleaning composition containing 8 to 25% by weight of ethanol, a refreshing feeling after repeated use was insufficient when polyethylene glycol was not contained.

On the other hand, in the skin cleanser using the skin cleansing composition containing polyethylene glycol together with 8 to 20% by weight of ethanol, a refreshing feeling after repeated use is sufficiently felt, and the skin area to be wiped is It has become possible to expand or to expand the range in which the effect of cleaning the skin is actually felt (Examples 1 to 8). Furthermore, in Examples 1 to 8, irritation at the time of wiping the skin was suppressed.

Claims (5)

A method for expanding a skin area to be wiped by a skin wiper,
In said skin cleansing, the said skin cleansing composition which is impregnated with the skin cleansing composition containing 8 to 20 weight% of ethanol and polyethylene glycol is used. The method according to claim 1, wherein the polyethylene glycol has an average molecular weight of 200 to 20,000. The method of claim 1 or 2, wherein the wipe is a cosmetic cotton. The method according to any one of claims 1 to 3, wherein the skin is wiped in an area that is 30 times or more the area of the surface of the skin wiper that contacts the skin. The method according to any one of claims 1 to 4, wherein one skin cleaning tool is used to clean two or more different skin sites.