JPWO2019054362A1 - Oil-based cleaning agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil-based cleaning agent which does not become cloudy or thickened even when mixed with water and can exhibit an excellent cleaning effect even when used by a user with wet hands. An oil-based cleaning agent containing (A) a nonionic surfactant of HLB 9 to 16, (B) a liquid oil component, and (C) propylene glycol laurate. [Selection diagram] None

Description

The present invention relates to an oil-based cleaning agent that exhibits an excellent cleaning effect without becoming cloudy or thickening even when mixed with water.

So-called cleansing oils are widely used as oil-based cleansing agents for washing off makeup cosmetics containing oils such as lipsticks, foundations, mascaras, and eye shadows.

Cleansing oils are usually based on large amounts of oil and small amounts of nonionic surfactants, and when used, first apply the cleansing oil to the make-up cosmetics, then wash off the makeup cosmetics with the cleansing oil. It is often used in washrooms or bathrooms because it is washed by cleaning.

However, when water is mixed in the cleansing oil, the mixed water is not dissolved, and the cleansing oil is separated into two layers to become cloudy or thickened. The white turbidity of the cleansing oil leads to a decrease in the cleaning effect of the make-up cosmetics because the surfactant is localized at the interface between the two layers, and the thickening of the cleansing oil is blended into the make-up cosmetics. Is likely to be difficult. For this reason, the user needs to be careful not to use the cleansing oil with wet hands or on the wet face such as after washing the hair in the bathroom, and it is not always convenient for the user. There wasn't.

Therefore, it is desired to develop an oil-based cleaning agent that does not become cloudy or thickened even if water is mixed in and can exhibit an excellent cleaning effect even when the user uses it with wet hands.

Japanese Unexamined Patent Publication No. 2014-152108

An object of the present invention is to provide an oil-based cleaning agent that does not become cloudy or thickened even when mixed with water and can exhibit an excellent cleaning effect even when used by a user with wet hands. To do.

As a result of studies conducted by the present inventors in order to solve the above problems, it contains (A) a nonionic surfactant of HLB 9 to 16, (B) a liquid oil component, and (C) propylene glycol laurate. As a result, it has been found that even if water is mixed in, it does not become cloudy or thickened, and an excellent cleaning effect is exhibited, and the present invention has been completed.

That is, the present invention is an oil-based cleaning agent containing (A) a nonionic surfactant of HLB 9 to 16, (B) a liquid oil component, and (C) propylene glycol laurate.

The present invention is an oil-based cleaning agent further containing (D) polyalkylene glycol or polyoxyethylene / polyoxypropylene dimethyl ether.

According to the oil-based cleaning agent of the present invention, even if water is mixed in, it does not become cloudy or thickened, and even if the user uses it with wet hands, an excellent cleaning effect can be obtained.

The oil-based cleaning agent of the present invention is characterized by containing (A) a nonionic surfactant of HLB 9 to 16, (B) a liquid oil component, and (C) propylene glycol laurate.

(A) The nonionic surfactants of HLB 9 to 16 are not particularly limited as long as they can be usually blended in cosmetics, and for example, POE (10) oleyl ether (HLB = 10), POE (10). ) Hexadecyl ether (HLB = 10), POE (20) glyceryl isostearate (HLB = 14), POE (8) glyceryl monoisostearate (HLB = 12), POE (40) glyceryl triisostearate (HLB) = 11), POE (30) glyceryl trioleate (HLB = 10), POE (10) monoisostearate (HLB = 12), POE (30) hardened castor oil (HLB = 11), POE (50) hardened castor Examples include oil monoisostearate (HLB = 12), POE (60) hardened castor oil triisostearate (HLB = 10), sorbitan monoisostearate (HLB = 9), and in particular POE (8) glyceryl monoiso. Steerate is preferred.

When the HLB of the nonionic surfactant is less than 9, it becomes cloudy due to the mixing of water, and when the HLB exceeds 16, it becomes difficult to obtain a uniform composition.

The liquid oil (B) is not particularly limited as long as it is a liquid oil usually used in cosmetics, but for example, hydrocarbon oils such as liquid paraffin, squalane, olefin oligomer, and light isoparaffin, 2-ethyl. Triglyceride hexanoate, cetyl 2-ethylhexanoate, pentaerythritol 2-ethylhexanoate, trimethyl propane 2-ethylhexaneate, 2-ethylhexyl palmitate, isocetyl isononanoate, isopropyl myristate, cetyl octanoate, tripropylene dineopentanoate Ester oils such as polyglycol, jojoba oil, olive oil, macadamia nut oil, cotton seed oil, tea seed oil, paraffin oil, rice bran oil and other natural vegetable oils, decamethylpentacyclosiloxane, octamethyltetracyclosiloxane, dimethylsiloxane, methylphenyl Examples thereof include silicone oil such as siloxane, and preferably liquid paraffin, cetyl 2-ethylhexanoate, decamethylpentasiloxane and the like can be used.

When propylene glycol laurate (C) is added to the oil-based cleaning agent, the state of the oil-based cleaning agent can be stably maintained for a long period of time at a high temperature. In addition, it is possible to effectively suppress an increase in viscosity and the occurrence of cloudiness caused by the mixing of water. The HLB value of propylene glycol laurate is 5.

It is preferable that the oil-based cleaning agent of the present invention further contains (D) polyalkylene glycol or polyoxyethylene / polyoxypropylene dimethyl ether. By blending such a polyalkylene glycol or the like, it is possible to remarkably suppress the increase in viscosity and the occurrence of cloudiness due to the mixing of water, and the detergency of the makeup cosmetics is improved. As the polyalkylene glycol, polyethylene glycol, polypropylene glycol, and polybutylene glycol can be blended. As the polyoxyethylene / polyoxypropylene dimethyl ether, POE (14) POP (7) dimethyl ether, POE (17) POP (4) dimethyl ether and the like, which are polyoxyethylene polyoxypropylene random copolymer dimethyl ether, may be blended. it can.

In addition to the above-mentioned essential ingredients, the oil-based cleaning agent of the present invention may contain one or more other ingredients usually blended in cosmetics and pharmaceuticals as long as the effects of the present invention are not impaired. For example, in an oil-based cleaning agent, components usually blended in a cleaning composition can be blended. Specific examples are given below, but the present invention is not limited to these.

Titanium dioxide, mica, talc and the like can be blended as powder components. Further, as the ultraviolet absorber, an benzoic acid-based ultraviolet absorber such as paraaminobenzoic acid, an anthranil-based ultraviolet absorber such as homomentyl-7N-acetylanthranilate, a benzoyl-based ultraviolet absorber such as butylmethoxybenzoylmethane, and octyl cinnamate. , Diparamethoxysilicic acid-mono2-ethylhexarate and other silicic acid-based UV absorbers, amylsalicylate and other salicylate-based UV absorbers, and 2,4-dihydroxybenzophenone and other benzophenone-based UV absorbers. be able to.

As the moisturizing agent, polyethylene glycol, glycerin, sorbitol, xylitol, maltitol, mucopolysaccharide, hyaluronic acid, chondroitin sulfate, chitosan and the like can be blended. As the thickener, methyl cellulose, ethyl cellulose, gum arabic, polyvinyl alcohol, montmorillonite, laponite and the like can be blended. Further, ethanol, 1,3-butylene glycol and the like can be blended as the organic solvent.

Butylhydroxytoluene, tocopherol, phytic acid, etc. can be added as antioxidants, and benzoic acid, salicylic acid, sorbic acid, paraoxybenzoic acid alkyl esters (ethylparaben, butylparaben, etc.), hexachlorophene, etc. can be added as antibacterial preservatives. it can.

As other components, pigments, fragrances, purified water and the like can be appropriately blended.

Hereinafter, the present invention will be described in more detail with reference to Examples, but these Examples do not limit the present invention. The numerical values in the table indicate mass% unless otherwise specified.

The oil-based cleaning agent was adjusted by a conventional method, and "stability", "make-up removal", and "easiness of rinsing" were evaluated.

"Stability" was evaluated according to the following criteria as to the presence or absence of haze and scumming based on the appearance after being left at a high temperature of 50 ° C. and a low temperature of 0 ° C. for 3 days.

Evaluation criteria for "stability" ○: Transparent (passed)
×: Occurrence of moya and kasumi (failure)

"Make-off" is a tissue paper containing 0.2g of oil-based cleaning agent on the upper surface of artificial leather evenly coated with liquid foundation, and the remaining condition of the liquid foundation after 20 reciprocations while applying a weight of 300g. It was evaluated visually.

Evaluation criteria for "make-up" ◎: Very good (pass)
○: Excellent (pass)
△: Slightly inferior (failed)
×: Inferior (failed)

The "easiness of rinsing" was determined by a sensory evaluation of the time required for the face to no longer feel slimy when 3 g of an oil-based cleansing agent was applied to the entire face, and after being well blended and washed with water.

Evaluation criteria for "easy to rinse" ◎: Very good (pass)
○: Excellent (pass)
△: Slightly inferior (failed)
×: Inferior (failed)

When water is mixed in the oil-based cleaning agent, the viscosity may increase or the oil-based cleaning agent may become cloudy. As the viscosity increases, the oil-based cleaning agent becomes less familiar with the make-up. In addition, the cloudy cleaning agent tends to make it difficult for the surfactant as a cleaning component to bind to the make-up, and the effect of removing the make-up tends to decrease. Therefore, the viscosity, transparency, and make-up removal when mixed with water were evaluated.

To measure the "viscosity when mixed with water", add water to the oil-based cleaning agent so that the mixing ratio of the oil-based cleaning agent: water is 7: 3, mix by inversion mixing, and then add 40 g of the mixed solution. The mixture was filled in a 50 ml glass bottle, measured at a temperature of 30 ° C. using a BL type No. 3 rotor (rotation speed 12 rpm), and then evaluated according to the following criteria. The viscosity of the oil-based cleaning agent before mixing with water is about 40 mPa · s (BL type No. 1 rotor rotation speed 60 rpm). It is preferable that the oil-based cleaning agent has as little increase in viscosity as possible due to water contamination. As the criteria for evaluation, the acceptance criteria was that the viscosity when mixed with water was 3500 mPa · s or less.

Evaluation criteria for "viscosity when mixed with water" ◎: 1500 mPa ・ s or less (passed)
○: 1500-3500 mPa ・ s (passed)
△: 3500 to 6000 mPa ・ s (failed)
×: 6000mPa ・ s ~ (failed)

"Transparency when mixed with water" means that water is added to the oil-based cleaning agent so that the mixing ratio of the oil-based cleaning agent: water is 7: 3, and the mixture is mixed by inversion mixing, and then the appearance of the mixed solution is changed. Evaluation was made according to the following criteria.

Evaluation criteria for "transparency when mixed with water" ◎: Transparent (passed)
○: pale (passed)
△: Slightly cloudy (failed)
×: Cloudy (failed)

For "make-up removal when water is mixed", 0.2 g of oil-based cleaning agent and 0.09 g of water (mixing ratio of oil-based cleaning agent and water is about 7: 3) on the upper surface of artificial leather to which liquid foundation is evenly applied. The remaining condition of the liquid foundation after 20 reciprocations while applying a load of 300 g was visually evaluated with a tissue paper containing (corresponding to).

Evaluation criteria for "make-up removal when water is mixed" ◎: Very good (pass)
○: Excellent (pass)
△: Slightly inferior (failed)
×: Inferior (failed)

As shown in Table 1, in Examples 1 to 4 in which POE (8) glyceryl monoisostearate and propylene glycol laurate were blended, good results could be obtained in all the evaluation items.

As shown in Table 2, good results were obtained in Examples 5 and 11 in which POE (8) glyceryl monoisostearate and propylene glycol laurate were blended, but more excellent results were obtained by further blending polypropylene glycol. The evaluation results were obtained (Examples 6 to 10, 12 and 13).

Further, from the results of Examples 6, 7, 14 to 21 in Table 3, not only polypropylene glycol but also polyalkylene glycol such as polyethylene glycol and polybutylene glycol or polyoxyethylene / polyoxypropylene dimethyl ether was evaluated. Was confirmed to improve.

Claims (2)

(A) Nonionic surfactants of HLB 9 to 16 and
(B) Liquid oil and
(C) Propylene glycol laurate and
An oil-based cleaning agent characterized by containing. The oil-based cleaning agent according to claim 1, further comprising (D) polyalkylene glycol or polyoxyethylene / polyoxypropylene dimethyl ether.