JP2005306823A - Oily cleansing cosmetic in which enzyme is formulated - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an enzyme-formulated oily cleansing cosmetic in which excellent makeup removing action and protein stain-removing action, aged keratin-removing action, etc., can simultaneously be obtained and transparency is kept. <P>SOLUTION: The oily cleansing cosmetic comprises an oily component, a nonionic surfactant (A) having 7-17 HLB, e.g. a sugar fatty acid ester-based nonionic surfactant, a polyglycerol fatty acid ester-based nonionic surfactant or a glycerol fatty acid ester-based nonionic surfactant and a protease. In the oily cleansing cosmetic, the content of the oily component is 65-94 mass% and the content of the nonionic surfactant (A) is 5-25 mass% and transparency is kept. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an oil-based cleansing cosmetic, and more specifically, in the oil-based cleansing cosmetic, a makeup removing action caused by oil and a protein stain and aging keratin removing action caused by a hydrophilic proteolytic enzyme. The present invention relates to a transparent oil-based cleansing cosmetic that can be obtained simultaneously.

Cleansing cosmetics are mainly used for removing makeup with oil components. For example, cleansing cosmetics are allowed to act on makeup stains as they are, and the stains are transferred to cleansing cosmetics. It is used by methods such as washing away or wiping off.
Such cleansing cosmetics include oil-based cleansing cosmetics that do not contain water or water that can be solubilized in oily components, and milky or cream-like cleansings that contain a large amount of water by emulsification. Cosmetics are generally known.

By the way, in the field of cosmetics, it is already known that various enzymes can be blended, but the effect is not obtained in any product by blending enzymes. For example, when an enzyme that generally acts in water is exposed to oil such as an oil-based cleansing cosmetic, its structure changes and a desired effect cannot be obtained. In addition, since the enzyme exhibits its active action in the presence of water, for example, it is considered that the effect cannot be exerted in an environment containing no or little water such as oil-based cleansing cosmetics. .
Furthermore, oil-based cleansing cosmetics usually need to ensure transparency in order to increase the value as a product. However, when an enzyme is blended in an oily cleansing cosmetic whose main component is an oily component and the structure of the enzyme is changed, a precipitate is formed, and transparency cannot be maintained.
Therefore, in the past, for example, as represented by Patent Document 1, in the case of an emulsified type or cream-type cleansing cosmetic containing a large amount of water, it has been proposed to add an enzyme. In the case of oil-based cleansing cosmetics represented by No. 2, it is the actual situation that it cannot be proposed for blending enzymes. Therefore, in oil-based cleansing cosmetics, there is currently no commercial or proposal for a product that can simultaneously obtain a makeup removing action and a protein stain or aging keratin removing action.
JP 2000-34221 A JP 2004-75566 A

  An object of the present invention is to provide an oil-based cleansing cosmetic with an enzyme that can simultaneously obtain an excellent makeup removing action and an action for removing protein stains and aging keratin in an oil-based cleansing cosmetic, while maintaining transparency. It is to provide.

  According to the present invention, the nonionic surfactant includes an oily component, a nonionic surfactant (A) having an HLB of 7 to 17 and a proteolytic enzyme, and the content of the oily component is 65 to 94% by mass. A transparent enzyme-containing oil-based cleansing cosmetic with a content of (A) of 5 to 25% by mass is provided.

  The enzyme-containing oil-based cleansing cosmetic composition of the present invention contains a specific proportion of an oily component, a specific proportion of a specific nonionic surfactant (A), and a proteolytic enzyme. It is possible to obtain aging exfoliating action at the same time, and also maintain transparency, so that the commercial value of conventional oil-based cleansing cosmetics can be maintained, and dirt that cannot be exhibited by conventional oil-based cleansing cosmetics It also has a removal action.

The present invention will be described in detail below.
The enzyme-containing oil-based cleansing cosmetic composition of the present invention is a cleansing cosmetic composition that includes a specific proportion of an oily component, a specific proportion of a specific nonionic surfactant (A), and a proteolytic enzyme, and exhibits transparency.
Here, the term “transparent” refers to a liquid in which titanium oxide (titanium oxide JA-C, particle size of about 0.1 to 0.5 μm (manufactured by Teika)) is suspended in water to 0.001% by mass. Also means that it is clear by visual judgment, and if it contains pigments and powder, it means that it is clear by visual judgment in comparison with the titanium oxide suspension in a state where these are removed. . Therefore, in the present invention, known milky cleansing cosmetics and cream-type cleansing cosmetics that are cloudy are excluded.

The oily component used in the present invention is a component that has affinity with makeup and its stains and can remove these, and examples thereof include hydrocarbon oil, fatty acid ester oil, vegetable oil, etc. It can be used as a mixture of seeds or more.
Examples of the hydrocarbon oil include liquid paraffin, squalane, squalene and the like.
Examples of fatty acid ester oils include glyceryl tri-2-ethylhexanoate, glyceryl tri (capryl / caprate), cetyl 2-ethylhexanoate, butyl myristate, butyl stearate, cetyl isooctanoate, ethyl oleate, isostearic acid Examples include 2-hexyldecyl, 2-hexyldecyl myristate, 2-hexyldecyl stearate, 2-hexyldecyl palmitate, isopropyl isostearate, isopropyl myristate, isopropyl palmitate, cetyl palmitate, cholesteryl stearate, and the like.
Examples of vegetable oils include palm oil, palm oil, olive oil, apricot oil, coconut oil, grape seed oil, sasanqua oil, safflower oil, sweet almond oil, corn oil, sunflower oil, hazelnut oil, jojoba oil, macadamian nut Oil, rosehip oil, rice bran oil, sesame oil, cocoon oil, orange oil, eucalyptus oil, cottonseed oil and the like.

  In this invention, the content rate of an oil-based component is 65-94 mass% with respect to cleansing cosmetics whole quantity, Preferably it is 70-90 mass%. If the oil component is less than 65% by mass, the desired transparent oil-based cleansing cosmetic cannot be obtained. On the other hand, if it exceeds 94% by mass, it is difficult to blend without destroying the proteolytic enzyme described later. It becomes difficult to maintain transparency.

The nonionic surfactant (A) used in the present invention is not particularly limited as long as the HLB is 7 to 17 and the desired effect of the present invention can be obtained. For example, sugar fatty acid ester nonionic surfactant, polyglycerin fatty acid The use of one or more selected from the group consisting of ester-based nonionic surfactants and glycerin fatty acid ester-based nonionic surfactants is preferred.
If the nonionic surfactant used in the present invention is, for example, HLB is out of the above range, the proteolytic enzyme described later cannot be stably retained in the cleansing cosmetic, and further, transparency can be maintained. Can not.

  Examples of the sugar fatty acid ester nonionic surfactant include sorbitan fatty acid esters such as sorbitan laurate, sorbitan caprate, coconut oil fatty acid sorbitan; coconut oil fatty acid POE sorbitan, palmitic acid POE sorbitan, stearic acid POE sorbitan, isostearic acid POE sorbitan fatty acid esters such as POE sorbitan and oleic acid POE sorbitan; POE sorbit fatty acid esters such as lauric acid POE sorbite, stearic acid POE sorbit, oleic acid POE sorbit; sucrose stearate, sucrose palmitate, sucrose myristic acid, sucrose laurate And sucrose fatty acid esters such as sucrose oleate.

Examples of the polyglycerin fatty acid ester nonionic surfactant include diglyceryl oleate, hexaglyceryl laurate, hexaglyceryl myristate, hexaglyceryl stearate, hexaglyceryl oleate, decaglyceryl laurate, decaglyceryl myristate, Examples include decaglyceryl stearate, decaglyceryl isostearate, decaglyceryl oleate, decaglyceryl linoleate, decaglyceryl behenate, decaglyceryl erucate, and the like.
Examples of the glycerin fatty acid ester nonionic surfactant include POE glyceryl stearate, POE glyceryl oleate, and POE glyceryl isostearate.

In this invention, the content rate of nonionic surfactant (A) is 5-25 mass% with respect to the cleansing cosmetics whole quantity, Preferably it is 7-20 mass%. If the nonionic surfactant (A) is less than 5% by mass, it becomes difficult to mix without changing the structure of the protease described later, and it becomes difficult to maintain transparency, while it exceeds 25% by mass. In some cases, it is difficult to obtain a desired transparent oil-based cleansing cosmetic.
Here, in the cleansing cosmetic of the present invention, as described later, a surfactant other than the nonionic surfactant (A), for example, a nonionic surfactant having an HLB in the range of 7 to 17 can be contained. It is. However, the ratio in the case of including a nonionic surfactant having such an HLB not in the range of 7 to 17 is that the total HLB in all the nonionic surfactants contained in the cleansing cosmetic is in the range of 7 to 17. It is preferable to make it contain in such a ratio.

The proteolytic enzyme used in the present invention is not particularly limited as long as it can efficiently remove protein stains and aging keratin on the skin. For example, proteolytic enzymes derived from microorganisms such as Bacillus subtilis, animal origins such as pancreatin, etc. And proteolytic enzymes of plant origin such as papain and bromelain.
In the present invention, the content of the proteolytic enzyme can be appropriately determined according to the titer of the enzyme and the like, but is usually preferably 0.001 to 2% by mass with respect to the total amount of the cleansing cosmetic.

In addition to the above essential components, the cleansing cosmetic of the present invention may contain other components within a range that does not impair the desired purpose of the present invention or to achieve other purposes.
For example, it preferably contains a protease stabilizer and / or a protease aid, and in addition, a surfactant other than the nonionic surfactant (A), an antioxidant, a plant extract, Examples include, but are not limited to, preservatives, plant extracts, fats and oils, alcohol, and water.

Examples of the proteolytic enzyme stabilizer include hydrolyzed soy protein, betaine amphoteric surfactant, polyvinylpyrrolidone, amino acids, trimethylglycine, cationized cellulose, collagen, elastin, albumin, keratin, isomaltoligosaccharide, and raffinose. Fructose, glycylglycine, L-arginine-L-glutamic acid, mussel glycogen and the like, and can be used alone or as a mixture of two or more.
Examples of the proteolytic enzyme solubilizing agent include liquid polyhydric alcohols such as glycerin, 1,3-butylene glycol, propylene glycol, isoprene glycol, dipropylene glycol, and polyethylene glycol. Or it can use as a mixture of 2 or more types.
The blending ratio of the protease stabilizer and / or the protease aid can be appropriately determined according to the type and amount of the protease.

  The cleansing cosmetic composition of the present invention is oily and not emulsified, but can contain water as long as the transparent oiliness can be maintained. The content ratio in the case of containing water is preferably 10% by mass or less so that water can be solubilized without emulsification.

  The cleansing cosmetic of the present invention can be produced according to a conventional method, and the method of use is the same as the oil-based cleansing cosmetic containing a conventional surfactant. Use oil-based cleansing cosmetics for makeup removal as it is, apply a small amount of water along the way, and then rinse off with water. Aging skin can be removed.

EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further in detail, this invention is not limited to these.
Examples 1-22, Comparative Examples 1-4
Cleansing cosmetics having the compositions shown in Tables 1 to 4 were produced and subjected to the following measurements and tests. The results are shown in Table 5. In Table 5, “-” indicates that each measurement and test was not performed.
<Property measurement>
Suspend titanium oxide (titanium oxide JA-C, particle size of about 0.1 to 0.5 μm (manufactured by Teika)) so that the transparency of the obtained cleansing cosmetic is 0.001% by mass in water. The liquid was visually compared, and a transparent one was evaluated as “◯” and a non-transparent one was evaluated as “X”.

<Stain washing test for makeup and protein stains>
(1) The following soil washing test was conducted using pseudo-protein stains obtained by immobilizing casein dyed blue-purple with Coomassie Brilliant Blue on the skin.
First, a commercially available foundation and lipstick were applied on the skin on which the pseudo protein stain was fixed. Next, after the cleansing cosmetic prepared above was applied to the foundation and lipstick, a small amount of water was added on the skin and further applied. Subsequently, it was washed away with a large amount of water.
As a result, it was visually evaluated as ○ when the pseudo protein stain, foundation and lipstick were all removed, and x when the pseudo protein stain was hardly removed.
(2) In the above (1), when a rinse with a large amount of water was finally washed out, the ease of washing the cleansing cosmetic was evaluated on a 5-point scale from 1 to 5 points by 10 panels. The result is an average value of 10 people, and the higher the score, the easier it is to emulsify during washing and the easier it is to wash.

<Measurement of residual rate of enzyme activity>
About the obtained cleansing cosmetics, the enzyme activity immediately after the production based on the “former test method for protease component titer third method”, and the enzyme activity after storage for 30 days at 40 ° C. Measurement was made and the residual rate of enzyme activity was calculated.

Claims (3)

An oily component, a nonionic surfactant (A) having an HLB of 7 to 17, and a proteolytic enzyme,
A transparent enzyme-containing oil-based cleansing cosmetic in which the content of the oil component is 65 to 94% by mass and the content of the nonionic surfactant (A) is 5 to 25% by mass.   The nonionic surfactant (A) is one or more selected from the group consisting of a sugar fatty acid ester nonionic surfactant, a polyglycerol fatty acid ester nonionic surfactant and a glycerin fatty acid ester nonionic surfactant. The oil-based cleansing cosmetic according to claim 1, wherein The oil-based cleansing cosmetic according to claim 1 or 2, further comprising a proteolytic enzyme stabilizer and / or a proteolytic enzyme solubilizing agent.