JPH045213A - Cleansing composition - Google Patents

Abstract

PURPOSE:To obtain a one-phase type composition, containing a hydrophilic nonionic surfactant having an HLB exceeding a specific value, a nonionic surfactant having an HLB within another specified range, a water-soluble compound having hydroxyl groups, a liquid oil and water and excellent in feeling of use and permeability. CONSTITUTION:The subject composition containing 5-25 wt.% hydrophilic nonionic surfactant (e.g. a polyoxyethylene alkyl ether) having an HLB exceeding 9, 1-10 wt.% nonionic surfactant (e.g. polyglycerol ester of a fatty acid) having an HLB within the range of 3-9, 3-30 wt.% nonionic surfactant (e.g. glycerol) having OH groups, 30-80 wt.% liquid oil (e.g. liquid paraffin) and 3-30 wt.% water. The aforementioned composition is a readily handleable gelatinous or liquid form and can be massaged while keeping the smoothness without readily increasing the viscosity even if water is mixed from the outside therein. Furthermore, if water is added, oily ingredients are converted into oil-in-water type emulsified particles and readily removed together with dirt from the skin.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cleansing composition, and more particularly to a cleansing composition that has good permeability into the skin details and an excellent feeling of use, and is suitable for use in cleansing creams, pine surge creams, etc. The present invention relates to a cleansing composition useful as a cosmetic composition.

[Conventional technology]

There are cleansing cosmetics, pine surge cosmetics, etc. as cosmetics that apply oil components to the skin for the purpose of removing skin dirt and makeup cosmetics, or for the purpose of pine surges the skin, and these are applied to the skin and spread. , which is removed from the skin after its intended use has been fulfilled. These cosmetics are commercially available in the form of oils, creams of oil-in-water or water-in-oil emulsions, or gels of oil-in-surfactant emulsions.

However, these conventional cleansing cosmetics and pine surge cosmetics containing oil components have drawbacks such as being sticky when used and having poor storage stability.

Recently, cleansing cosmetics, pine surge cosmetics, etc. that utilize liquid crystal structures made of hydrophilic nonionic surfactants have been reported as techniques to solve these drawbacks (Japanese Patent Publication No. 1-53845). .

[Problem to be solved by the invention]

However, this liquid crystal type oil-based cosmetic is not suitable for use in humid conditions such as when sweating or in a bathroom, and the viscosity increases due to the incorporation of water, making it difficult to spread, which is not desirable.

For this reason, it spreads easily when applied to the skin, can be easily muffed, does not easily thicken due to contamination with moisture from the outside, and can be completely removed with water alone without tissue removal, making it easy to clean. It has been desired to develop a composition that can be used as a cleansing cosmetic, a pine surge cosmetic, etc., which is excellent and does not leave a sticky feeling when used.

[Means to solve the problem]

Under these circumstances, the present inventors have conducted intensive research to solve the above problems, and as a result, we have developed an excellent cleansing agent that satisfies the above requirements by using two or more types of nonionic surfactants with different HLB values in specific ranges. The present invention was completed based on the discovery that a composition useful as cosmetics, pine surge cosmetics, etc. can be obtained.

That is, the present invention provides a one-phase cleansing agent containing a hydrophilic nonionic surfactant with an HLB of more than 9, a nonionic surfactant with an HLB of 3 to 9, a water-soluble compound having a hydroxyl group, liquid oil, and water. A composition is provided.

Furthermore, in the present invention, the one-phase emulsion refers to a transparent or translucent emulsion, rather than an O/W emulsion or a W10 emulsion.

Note that HLB refers to the balance between hydrophilicity and lipophilicity, and in the present invention, the value calculated by the following formula by Koguchi and Maetsuke et al. was used.

To increase the HLB value, there are methods such as increasing the number of moles of ethylene oxide added or using polyethylene glycol or polyglycerin with a large molecular weight.On the other hand, to lower the HLB value, the degree of esterification or This can be achieved by increasing the degree of etherification (in the case of polyhydric alcohols).

Examples of the hydrophilic nonionic surfactant having an HLB of more than 9 used in the present invention include polyoxyethylene alkyl ether, polyoxypropylene alkyl ether,
Polyoxyethylene alkylphenyl ether, polyethylene glycol fatty acid ester, ethylene oxide derivative of propylene glycol fatty acid ester, polyoxyethylene sorbitan fatty acid ester, ethylene oxide derivative of mono- or polyglycerin fatty acid ester, ethylene oxide derivative of trimethylolpropane fatty acid ester, poly Polyoxyalkylene type nonionic surfactants such as oxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid ester, polyoxyethylene hydrogenated castor oil pyroglutamic acid ester, polyoxyethylene glyceryl pyroglutamic acid ester; sucrose fatty acid esters; Examples include alkyl glucosides; polyglycerin fatty acid esters; polyglycerin alkyl ethers. These are nonionic surfactants whose hydrophobic groups, such as alkyl groups, phenyl groups, and fatty acid residues, have 8 to 36 carbon atoms. More specifically, polyoxyethylene (30) hydrogenated castor oil, polyoxyethylene (40) hydrogenated castor oil, polyoxyethylene (50) hydrogenated castor oil, polyoxyethylene (60) hydrogenated castor oil, polyoxyethylene ( 15) Decyltetradecyl ether, polyoxyethylene (20) decyltetradecyl ether, polyoxyethylene (25) decyltetradecyl ether, polyoxyethylene (10) hexyldecyl ether, polyoxyethylene (15) hexyldecyl ether , polyoxyethylene (20) hexyldecyl ether, polyoxyethylene (25) hexyldecyl ether, polyoxyethylene (10) octyl dodecyl ether, polyoxyethylene (16) octyl dodecyl ether, polyoxyethylene (20) octyl dodecyl ether,
Polyoxyethylene (25) octyl dodecyl ether, polyoxyethylene (15) glyceryl monoisostearate, polyoxyethylene (30) glyceryl monoisostearate, polyoxyethylene (30) glyceryl triisostearate, polyoxyethylene ( 40
) Glyceryl triisostearate, polyoxyethylene (30)) Limethylolpropane trimyristate, polyoxyethylene (6) Sorbitan monolaurate, Polyoxyethylene (20) Sorbitan monolaurate, Polyoxyethylene (20) Sorbitan Monostearate, polyoxyethylene (20) sorbitan monooleate, polyoxyethylene (30) sorbitol tetraoleate, polyoxyethylene (40) sorbitol tetraoleate, and the like. Of these,
Particularly preferred are polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, and the like. These may be used alone or in combination of two or more.

The hydrophilic nonionic surfactant is 1 to 30% by weight (hereinafter simply %) based on the total composition of the cleansing composition of the present invention.
It is particularly preferable to mix the amount in the range of 5 to 25%. If it is less than 1%, the detergency and washability of the composition will be insufficient, and if it exceeds 30%, the composition may thicken or solidify, which is not preferable.

Examples of nonionic surfactants with HLB in the range of 3 to 9 used in the present invention include polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, polyoxyethylene alkylphenyl ether, polyethylene glycol fatty acid ester, propylene glycol fatty acid ester ethylene oxide derivatives of polyoxyethylene sorbitan fatty acid esters, ethylene oxide derivatives of mono- or polyglycerin fatty acid esters, ethylene oxide derivatives of trimethylolpropane fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, Examples include polyoxyalkylene type nonionic surfactants such as oxyethylene hydrogenated castor oil pyroglutamic acid ester and polyoxyethylene glyceryl pyroglutamic acid ester; sucrose fatty acid esters; polyglycerin fatty acid esters; polyglycerin ethers. These include hydrophobic carbon atoms such as alkyl groups, phenyl groups, fatty acid residues, etc.
36 nonionic activator. More specifically, polyoxyethylene (5) hydrogenated castor oil, polyoxyethylene (7) hydrogenated castor oil, polyoxyethylene (10) hydrogenated castor oil, polyoxyethylene (20) hydrogenated castor oil,
Polyoxyethylene (3) lauryl ether, polyoxyethylene (5) stearyl ether, polyoxyethylene (5) decyltetradecyl ether, polyoxyethylene (10) decyltetradecyl ether, polyoxyethylene (5) hexyldecyl ether , polyoxyethylene (5) octyl dodecyl ether, polyoxyethylene (3) glyceryl monoisostearate, polyoxyethylene (6) glyceryl monoisostearate, polyoxyethylene (10) glyceryl triisostearate, polyoxyethylene (20) Glyceryl triisostearate, sorbitan monooleate, sorbitan monostearate, diglycerol monostearate, diglycerol distearate, polyoxyethylene (
8) ) Limethylolpropane trimyristate, polyoxyethylene (20) ) Limethylolpropane trimyristate, polyoxyethylene (6) diisostearate, polyoxyethylene (12) diisostearate, polyoxyethylene ( 5) Cetyl ether stearate, polyoxyethylene (10) cetyl ether stearate, and the like. Among these, polyoxyethylene alkyl ether, polyglycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, etc. are particularly suitable, and they further contain one or more branched alkyl groups in the molecule as a hydrophobic part. A nonionic surfactant having two or more long-chain alkyl groups in the molecule as a hydrophobic portion is preferred. These may be used alone or in combination of two or more. Such a nonionic surfactant having an HLB in the range of 3 to 9 is
It is preferably blended in a range of 0.5 to 20%, particularly 1 to 10%. If it is less than 0.5%, the reduction in viscosity, improvement in spreadability, etc. will be insufficient, and if it exceeds 20%, the effect will not increase much, which is not preferable.

Examples of water-soluble compounds having a hydroxyl group used in the present invention include propylene glycol, isoprene glycol (manufactured by Kuraray Co., Ltd.), 1,3-j9 diol, dipropylene glycol, glycerin, diglycerin, triglycerin, polyglycerin, and trimethylol. Propane, erythritol, pentaerythritol, sorbitan, sorbitol, glucose, maltitol, saccharose, trehalose, ethylene oxide or propylene oxide adducts of sugars or sugar derivatives, polyethylene glycol, ethanol, etc., especially glycerin, sorbitol, maltitol, Preferred are ethylene oxide adducts of sugar derivatives such as polyoxyethylene methyl glucoside, and ethanol.

These may be used alone or in combination of two or more. The amount of the water-soluble compound having a hydroxyl group varies depending on the feeling of use, consistency, etc. of the composition, but it is preferably blended in an amount of 1 to 50%, particularly 3 to 30%, based on the total composition of the cleansing composition of the present invention. .

Among these, ethylene oxide or propylene oxide adducts of sugar derivatives have the effect of eliminating the heat sensation, stickiness, etc. caused by oil and the like and significantly improving the feel during use. Particularly preferred is an adduct of methyl glucoside with 10 to 30 moles of ethylene oxide.

When an effect as a feel improver is expected, it is desirable that the compound be present in the cleansing composition in an amount of 1% or more.

The liquid oil used in the present invention may be one commonly used in cosmetics and the like. The liquid here refers to a liquid or paste at 25°C, such as hydrocarbons, higher alcohols, higher fatty acids, higher alcohol higher fatty acid esters, animal and vegetable oils, cholesterol fatty acid esters, and silicones. Preferred examples include liquid paraffin, polyisobutyne, isostearyl cholesteryl ester, 2-ethylhexanoic acid triglyceride, hexadecyl 2-ethylhexanoate, octadecyl myristate, olive oil, linear or cyclic methylpolysiloxane, etc. Can be mentioned. These may be used alone or in combination of two or more. The liquid oil is preferably blended in an amount of 1 to 90%, particularly 30 to 80%, based on the total composition of the cleansing composition of the present invention.

Further, the amount of water can be appropriately selected depending on the purpose of use of the cleansing composition of the present invention, required physical properties, etc., but it is preferably blended in an amount of 1 to 90%, particularly 3 to 30%, based on the total composition.

The cleansing composition of the present invention is produced by mixing the above-mentioned components in a composition that forms a gel and liquid state. Such a blending composition can be appropriately determined by a blending test of each component usually performed by experts in this field. The basic point that must be kept in mind when selecting the composition is to select the type and amount of the water-soluble compound and the mixing ratio that will maximize the association of surfactant molecules when forming the composition of the present invention. . In addition, its production is
Usually, each component is mixed and dissolved at a temperature above their melting points, and the mixture is cooled to around room temperature while stirring. The cleansing composition of the present invention is not an emulsified composition consisting of two phases, a dispersed phase and a continuous phase, but is in the form of a homogeneous gel or liquid having one phase.

The cleansing composition of the present invention further includes ionic surfactants and medicinal agents commonly used in cosmetics, pharmaceuticals, etc.
Moisturizing ingredients, anti-inflammatory agents, bactericidal agents, preservatives, ultraviolet absorbers,
Antioxidants, organic and inorganic powders, pigments, fragrances, etc. can be added as necessary. Furthermore, solid oil or semi-solid oil can be added within a range that does not impair the effects of the invention.

The cleansing composition of the present invention can be used for cleansing, pine surgery, etc., and is particularly preferably used as a face wash for removing make-up cosmetics.

〔Example〕

Next, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples.

Example 1 Cleansing compositions shown in Table 1 below were prepared by the following method, and their appearance and spreadability were evaluated.

Regarding water resistance, hardness and spreadability during use in the bathroom were evaluated. The results are shown in Table 1.

(Manufacturing method) Each component in the table is heated and melted and mixed at 80°C. This is stirred and cooled to around room temperature to obtain each cleansing composition.

(Evaluation) Very good ◎ Good ○ Fair △ Bad × Below margins The product of the present invention spreads very well and has good pine surge properties.
It was light and non-sticky, felt good in use, and had excellent detergency and washability.

Example 2 Cleansing Cosmetic: A cleansing cosmetic was prepared by heating, dissolving, mixing, and cooling all the components of the following composition.

(Composition) (%) Fragrance
0.1 ethanol
1.0 Purified water
Since it is in a balanced liquid state, it can disperse and dissolve dirt on the skin, and after cleansing, it can be washed away with just water, making it convenient and extremely effective in removing dirt.

Example 3 Cleansing Cosmetic: A cleansing cosmetic was prepared by heating, dissolving, mixing, and cooling all the components of the following composition.

(Composition) (%) Polyisobutyne (trimer) Glycerin methyl paraben Butyl paraben 25.0 10.0 0.1 0.1 Polyisobutyne (trimer) 29.0 Sorbitol 11,0 Cyphthyl hydroxytoluene 0.1 Methyl paraben
0.1 Butylparaben
0.1 Fragrance 0.
1 Ethanol 1.0 Purified Ice Because it is in a balanced gel state, it can disperse and dissolve even the dirt on the skin.
After cleansing, it was easy to wash off with just water, and the dirt removal ability was also extremely good.

Example 4 Pine surge cream: Pine surge cream was prepared by heating and dissolving all the components of the following composition, mixing and cooling operations.

(Composition) (%) Olive oil 53.0 Sorbitol
4.0 jojoba oil
1.0 Glycerin 6
．． 0 dibutylhydroxytoluene 0.1 methylparaben 0.1 butylparaben
0.1 fragrance
0.1 ethanol
1.0 Refined Ice Balance Because it is in a gel state, it can disperse and dissolve dirt on the skin, and it is convenient because it can be washed away with just water after the pine surge.
The ability to remove dirt was also extremely good.

〔Effect of the invention〕

The cleansing composition of the present invention is in the form of an easy-to-handle gel or liquid, and has an excellent feel when applied to the skin, such as spreading and slipping, and has good penetration into the fine details of the skin. be.

In addition, it does not easily thicken even when moisture is mixed in from the outside, and it can be applied to pine while maintaining a smooth feel during application. Furthermore, when water is added, the oil component becomes extremely fine oil-in-water emulsion particles and is easily removed from the skin along with makeup and other dirt, so no base component remains and it has excellent detergency and washability. Provides a light feeling of use.

that's all

Claims (1)

[Claims] (1) A hydrophilic nonionic surfactant with an HLB of more than 9,
A one-phase cleansing composition containing a nonionic surfactant having an HLB of 3 to 9, a water-soluble compound having a hydroxyl group, liquid oil, and water.