JP2018177731A - Oily cleanser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent oily cleanser which has good washability, can effectively remove a makeup cosmetic, has good rinsability, can be easily taken out from a container, hardly causes dropping or stringing from hands when taken by hand and can be applied to the proper site in a proper amount.SOLUTION: There is provided an oily cleanser which comprises 0.2 to 20 mass% of the following component (A), 5 to 40 mass% of the component (B), 25 to 80 mass% of the component (C) and 0.5 to 15 mass% of the component (D): (A) an alkylene oxide derivative represented by the general formula (1) according to claim 1, (B) a nonionic surfactant having a polyoxyethylene group and a hydrocarbon group having 12 to 22 carbon atoms and an HLB of 6 to 15, (C) an oil agent which is in a liquid state at 25°C and (D) water.SELECTED DRAWING: None

Description

  The present invention has good washability and effectively removes makeup cosmetics, and also has good rinseability, is easy to take out from the container, and is unlikely to drip off or drop from the hand after it is picked up. It relates to an oily cleansing agent that is transparent.

The cleansing agents used to remove makeup cosmetics are in the form of creams, emulsions, lotions, oils and the like. In general, the emulsion type of the O / W type and the lotion type in which the cosmetic is removed by a surfactant and an alcohol have low detergency to the cosmetic because the blending amount of the oil component is small. Therefore, in recent years, in order to enhance the detergency, oil-type cleansing agents highly blended with oil components tend to be preferred.
However, oily components generally formulated in cleansing agents have low viscosity and it is difficult to take out an appropriate amount from the pump container, and even after they are picked up by hand, dripping from the hand may occur, and an appropriate amount may be applied There was a problem that it was difficult.

  Several proposals have been made to improve the viscosity. For example, oil gel cosmetic using dextrin fatty acid ester such as 12-hydroxystearic acid and dextrin palmitic acid (patent document 1), N-acyl amino acid derivative such as N-lauroyl-L-glutamic acid dibutylamide (patent document 2), etc. Has been proposed. These utilize the thickening mechanism brought about by the strongly interacting hydrogen bond in oil, and even if it can gel the oil with a small amount, it is difficult to cause dripping during use, but it forms a gel with low fluidity. As a result, there is a problem that the dischargeability from the pump container is deteriorated, and the transparency of the preparation is impaired.

  In view of these circumstances, a cosmetic composition containing a specific polyalkylene glycol derivative which is a block-type alkylene oxide derivative, a specific nonionic surfactant, an oil agent and water is also disclosed (Patent Document 3). . This composition is structurally recoverable, transparent, smooth during application, and good in familiarity with the skin, but when it is taken out from the container or when it is compatible with makeup cosmetics There is a problem that the usability may be deteriorated due to

On the other hand, a gel-like composition containing a specific block-type alkylene oxide derivative, an oily gelling agent having a hydrogen bonding site, and an oil component is also disclosed (Patent Document 4). The composition has excellent gel-forming ability to prevent dripping at the time of use, low spinnability, and excellent use feeling, but the oil solution and the dissolved make-up cosmetic after rinsing with water May remain and stickiness may occur.
Thus, in the development of an oil-based cleansing agent, the oil-based cleansing agent has good cleaning properties and rinseability, is easy to take out from the container, is less likely to drip off from the hand after taking it in the hand and torn off. It had not been reached.

Japanese Patent Laid-Open No. 2002-03340 Japanese Patent Laid-Open No. 2002-316971 JP, 2013-35827, A Unexamined-Japanese-Patent No. 2010-100555

  Under such technical background, the object of the present invention is to remove the make-up cosmetic effectively while having good washability and good rinseability, and it is easy to take it out of the container, and after taking it by hand The present invention is to provide an oily cleansing agent which is transparent and can be applied to an appropriate site with little dripping and stringing-free occurrence.

  As a result of intensive studies on the above problems, the inventors of the present invention have found that an oil cleansing agent containing a specific alkylene oxide derivative, a specific nonionic surfactant, an oil agent and water in predetermined amounts is the above-mentioned problem. As a result, the present invention has been completed.

That is, the present invention comprises 0.2 to 20% by mass of the following component (A), 5 to 40% by mass of the component (B), 25 to 80% by mass of the component (C), and 0.5 of the component (D) It is an oily cleansing agent characterized by containing -15 mass%.
(A) Alkylene oxide derivative represented by the following general formula (1) (B) A nonionic surfactant having a polyoxyethylene group and a hydrocarbon group having 12 to 22 carbon atoms and having an HLB of 6 to 15 C) Liquid oil at 25 ° C (D) Water

Z- [O- (AO) _m- (EO) _n- H] _x ... Formula (1)
(Wherein, Z is a residue having 2 or more carbon atoms and having 2 to 9 hydroxyl groups excluding any hydroxyl group, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO Is an oxyethylene group, m is an average addition mole number per hydroxyl group of AO, and is 10 to 50, n is an average addition mole number per hydroxyl group of EO, and is 5 to 50. AO and EO The mass ratio of EO to the total content of is 10 to 50% by mass, and AO and EO are bound in a block.)

  The oil-based cleansing agent of the present invention has good cleaning and rinsing properties, is easy to remove from the container, is unlikely to drip off from the hand after taking it out of the hand, and does not wrinkle, and an appropriate amount can be applied to an appropriate site. The effect of good transparency is exhibited.

Hereinafter, embodiments of the present invention will be described.
The oily cleansing agent of the present invention contains components (A) to (D) described below. In addition, total content of component (A)-component (D) is 100 mass%.

[Component (A)]
The component (A) according to the present invention is an alkylene oxide derivative represented by the following general formula (1). The component (A) prevents dripping during application, and improves the cleaning power and the rinseability when washing with water.

Z- [O- (AO) _m- (EO) _n- H] _x ... Formula (1)

In the formula, Z is a residue obtained by removing all the hydroxyl groups from a compound having 2 or more carbon atoms, preferably 2 to 20, particularly preferably 2 to 14, and 2 to 9 hydroxyl groups, and x is The number of hydroxyl groups of the compound of Z is 2 to 9.
As a compound having 2 to 9 hydroxyl groups, ethylene glycol, propylene glycol and hexylene glycol when x = 2, glycerin and trimethylolpropane when x = 3, and erythritol and pentaerythritol when x = 4 Sorbitan, diglycerin, alkyl glycoside, xylitol if x = 5, dipentaerythritol if sorbitol, inositol if x = 6, sucrose, trehalose if x = 8, maltitol if x = 9 Etc. Moreover, you may use these mixtures as a compound which has 2-9 hydroxyl groups.
x is preferably 3 to 6, particularly preferably 4. When x is 1, it may be difficult to crosslink reverse micelles and it may be difficult to obtain a drip-off preventing effect. If x is too large, a sufficient dripping prevention effect can not be obtained, which may result in stringing.

In formula, AO is a C3-C4 oxyalkylene group, and 2 types of AO may be contained in General formula (1). When two types of AO are included in the general formula (1), random addition or block addition may be used.
As AO, an oxypropylene group can be exemplified with 3 carbon atoms, and an oxybutylene group can be exemplified with 4 carbon atoms, but by using AO as an oxy (1-ethylethylene) group derived from 1,2-butylene oxide, the cleaning power, Rinseability and drip prevention effect can be further improved.
m is an average added mole number per hydroxyl group of AO, and is 10 to 50, preferably 15 to 40, and particularly preferably 20 to 30. If m is too small, it is difficult to obtain a sufficient dripping prevention effect, and the detergency may be insufficient. If m is too large, stringiness may occur or rinseability may decrease.

  In the formula, EO is an oxyethylene group, n is an average added mole number per hydroxyl group of EO, and n × x is a total EO added mole number of the general formula (1). The average addition mole number n is 5 to 50, preferably 10 to 25. When n is too small, the interaction with the polyoxyethylene chain of the component (B) may be insufficient and it may be difficult to obtain a sufficient dripping preventing effect, and when n is too large, the compatibility with oil is obtained. It may be reduced and the transparency may be lost.

  The mass ratio of EO to the total content of AO and EO is 10 to 50% by mass, preferably 20 to 40% by mass, and particularly preferably 25 to 35% by mass. When the mass ratio is too small, the interaction of the component (B) with the polyoxyethylene chain may not be obtained sufficiently, and the dripping prevention effect may be insufficient. In addition, when the mass ratio is too large, the ratio of EO chains becomes large, so the crystallinity becomes high, and it may be difficult to obtain a transparent oily cleansing agent.

  In the general formula (1), AO and EO are linked to Z in block order in this order. Bonding in the order of EO-AO to Z may lead to spinnability and decrease in rinseability. In addition, even when AO and EO are bonded in a random manner, it becomes difficult to obtain the intended oily cleansing agent.

  The alkylene oxide derivative represented by the general formula (1) can be produced by a known method. For example, it can be obtained by addition polymerization of an oxyalkylene having 3 to 4 carbon atoms and oxyethylene in this order to a compound having 2 to 9 hydroxyl groups under an alkali or acid catalyst.

The content of the component (A) is 0.2 to 20% by mass, preferably 1 to 15% by mass, and particularly preferably 5 to 10% by mass, with respect to the total mass of the oil-based cleansing agent. When the content of the component (A) is too small, it may be difficult to obtain the desired detergency, rinse performance, and drip-off prevention effect. Moreover, when content of a component (A) is too large, spinnability may arise, or a feeling of stickiness may arise at the time of application | coating.
Component (A) may be used as a mixture of two or more.

[Component (B)]
The component (B) according to the present invention is a nonionic surfactant having a polyoxyethylene group (EO chain) and a hydrocarbon group having 12 to 22 carbon atoms, and having an HLB of 6 to 15, and from the skin The removed makeup cosmetic is emulsified and washed away with water to improve the rinse property and interact with the component (A) to impart a drip-off preventing effect.
In addition, polyoxyethylene may be described with POE below.

HLB is an abbreviation of Hydrophile-Lipophile Balance, and is a concept which quantified the balance of the hydrophilic group and the lipophilic group of the surfactant. In general, HLB is indicated by a numerical value within the range of 0 to 20, with larger numerical values indicating higher hydrophilicity. HLB can be calculated by the following equation (a) or (b).
(A) POE alkyl ether type nonionic surfactant HLB = mass fraction of oxyethylene group / 5
(B) Polyhydric alcohol fatty acid ester type nonionic surfactant HLB = 20 (1-S / A)
S: Saponification value of ester, A: Acid value of fatty acid (Exhibit: “New version Surfactant Handbook”, Engineering Books Co., Ltd.)

If HLB is too small, dripping prevention effect and rinseability after washing may decrease, and if HLB is too high, compatibility with oil may decrease and transparency may be impaired, and good. Rinseability may be difficult to obtain.
From such a point of view, the HLB of the component (B) is preferably 8 to 14, and particularly preferably 9 to 13.

  Examples of the hydrocarbon group having 12 to 22 carbon atoms include lauryl group, tridecyl group, myristyl group, palmityl group, cetyl group, isopalmityl group, stearyl group, isostearyl group, oleyl group, octyldodecyl group, behenyl group and the like. It may be a mixed alkyl group containing two or more of these hydrocarbon groups. Among them, from the viewpoint of compatibility and transparency, a branched saturated hydrocarbon group having 12 to 22 carbon atoms, or an unsaturated hydrocarbon group is preferable. As such a lipophilic group, particularly preferred are an oleyl group, an isopalmityl group and an isostearyl group. When the carbon number of the hydrocarbon group is too small, the rinse property may be lowered, and when the carbon number is too large, the transparency may be impaired.

  Component (A) can impart an anti-sagging effect upon application by crosslinking the reverse micelles formed by component (B) in oil. From the viewpoint of the interaction between the component (A) and the component (B), the polymerization degree (number of moles of added EO) of the polyoxyethylene group of component (B) and the average number of moles added per hydroxyl group of EO of component (A) The ratio (l / n) to n is preferably in the range of 0.5 to 3.0, and if it is in this range, the interaction between the component (A) and the component (B) is promoted, and sag is caused. The fall prevention effect is further improved.

The component (B) may be any of ester type, ether type, linear type and multiple chain type. Also, the esterification rate is not particularly limited.
As component (B), for example, POE (polyoxyethylene) oleyl ether, POE isopalmityl ether, POE isostearyl ether, monooleic acid POE, monoisostearic acid POE, dioleic acid POE, diisostearic acid POE, monooleic acid POE sorbitol, dioleole POE sorbitol, trioleate POE sorbitol, tetraoleate POE sorbitol, pentaoleate POE sorbitol, hexaoleate POE sorbitol, monoisostearate POE sorbitol, diisostearate POE sorbitol, triisostearate POE sorbitol, tetrae Isostearic acid POE sorbitol, pentaisostearic acid POE sorbitol, hexaisostearic acid PO Sorbitol, POE glyceryl monooleate, POE glyceryl dioleate, POE glyceryl trioleate, POE glyceryl monoisostearate, POE glyceryl diisostearate, POE glyceryl triisostearate, POE glyceryl monooleate, SOE sorbitan monooleate, POE sorbitan sesquioleate, triolein Examples thereof include acid POE sorbitan, POE sorbitan monoisostearate, POE sorbitan sesquiisostearate, POE sorbitan triisostearate, and monocobalt oil fatty acid POE glyceryl.

  Among these, in order to improve transparency, it is preferable to be liquid at 25 ° C., and in order to make hydration with the component (D) stronger, ester type is preferable. Therefore, as component (B), monooleic acid POE, monoisostearic acid POE, dioleic acid POE, diisostearic acid POE, tetraoleic acid POE sorbitol, tetraisostearic acid POE sorbitol, tetraisostearic acid POE sorbitol, POE glyceryl triisostearate, POE monoisostearic acid is preferable. Glyceryl, POE sorbitan monooleate, POE sorbitan monoisostearate, mono coconut oil fatty acid POE glyceryl, etc. can be exemplified. In order to improve the refreshing feeling after washing, it is more preferable to be a multi-chain type. As such multi-chain non-ionic surfactants, for example, POE sorbitol tetraoleate, POE sorbitol tetraisostearate, POE glyceryl triisostearate, POE glyceryl monoisostearate, POE sorbitan monooleate, mono coconut oil The fatty acid POE glyceryl is mentioned.

The content of the component (B) is 5 to 40% by mass, preferably 5 to 30% by mass, and particularly preferably 10 to 25% by mass, based on the total mass of the oil-based cleansing agent. When the content of the component (B) is too small, the dripping prevention effect required and the rinse property after washing may be lowered. Moreover, when content of a component (B) is too large, a feeling of stickiness may arise at the time of application | coating.
Component (B) may be used as a mixture of two or more.

[Component (C)]
Component (C) according to the present invention is an oil that is liquid at 25 ° C.
Examples of the liquid agent liquid at 25 ° C. include polar oils such as ester oils and triglycerides, and nonpolar oils such as hydrocarbon oils and silicone oils. Among them, polar oils such as ester oils and triglycerides are preferably contained, and polar oils are preferable. It is further preferable to use an oil and a nonpolar oil in combination.

As ester oil liquid at 25 ° C., ethyl oleate, ethyl linoleate, isopropyl myristate, isopropyl palmitate, isopropyl isostearate, cetyl 2-ethylhexanoate, isocetyl 2-ethylhexanoate, 2-ethyl hexanoic acid Stearyl, isostearyl 2-ethylhexanoate, cetyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl isostearate, isostearyl isostearate, trimethylolpropane triisostearate, myristyl myristate, cetyl myristate, myristate Octyldodecyl, isostearyl myristate, isocetyl myristate, hexyl laurate, decyl oleate, octyldodecyl oleate, isostearyl pivalate, iso Isopropyl isolate thanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, octyldodecyl erbate, neopentyl glycol dodecanoate, pentaerythrityl tetraethylhexanoate, disisostearyl malate, triethylhexanoate Methylolpropane, didecyl adipate, cholesteryl isostearate, batyl isostearate, castor oil cured with monohydroxystearic acid, lanolin fatty acid isostearyl, lanolin fatty acid isopropyl, lanolin fatty acid octyldodecyl, licityl ricinoleate, dioctyl succinate, cetyl lactate, dicaprylic acid Propylene glycol, Propylene glycol dicaprate, Propylene glycol dinonanoic acid, Caprylic-capric acid) propylene glycol diisostearate propylene glycol, dioleate propylene glycol can be exemplified. As such an ester oil, one or more of these can be used.
Preferred ester oils include, for example, cetyl 2-ethylhexanoate, isocetyl 2-ethylhexanoate, isopropyl palmitate, 2-ethylhexyl palmitate, isopropyl isostearate, 2-hexyldecyl isostearate, octyldodecyl myristate, myristic acid Isopropyl, isostearyl myristate, isocetyl myristate, isononyl isononanoate, 2-ethylhexyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate.

As triglyceride liquid at 25 ° C., caproic acid, caprylic acid, capric acid, 2-ethylhexanoic acid, isotridecanoic acid, isopalmitic acid, isostearic acid, isicosanoic acid, higher fatty acid having 6 or more carbon atoms such as oleic acid and glycerin and Triglycerides; animal and animal fats and oils such as olive oil, sunflower oil, safflower oil, castor oil and camellia oil; As such triglyceride, one or more of these can be used.
Preferred triglycerides include, for example, triglycerides of glycerol and caproic acid, caprylic acid, capric acid, higher fatty acids having 6 to 10 carbon atoms such as 2-ethylhexanoic acid, or mixtures thereof, such as tri (capryl / capric acid) Examples include glycerides and glyceryl tri 2-ethylhexanoate.

Hydrocarbon oils liquid at 25 ° C. include liquid paraffin, hydrogenated polyisobutene, hydrogenated polydecene, squalane, squalene, pristane, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, liquid isoparaffin, tetradecene, isohexadecane, isododecane, An alpha-olefin oligomer etc. can be illustrated.
Preferred hydrocarbon oils are, for example, liquid paraffin, hydrogenated polyisobutene, squalane. As such hydrocarbon oil, one or more of these can be used.

  Examples of silicone oil liquid at 25 ° C. include dimethicone, cyclomethicone and phenyl dimethicone. Preferred silicone oils are, for example, cyclomethicone such as decamethylcyclopentasiloxane. As such silicone oil, one or more of these can be used.

  The content of the component (C) is 25 to 80% by mass, preferably 35 to 75% by mass, and particularly preferably 40 to 60% by mass, based on the total mass of the oily cleansing agent. When the content of the component (C) is too small, the washability may be insufficient, and when the content of the component (C) is too large, the rinseability may be reduced.

[Component (D)]
Component (D) according to the present invention is water. In the oil-based cleansing agent of the present invention, the component (D) can impart an anti-sagging effect by promoting the formation of reverse micelles in the oil of the component (B) nonionic surfactant. The water is not particularly limited as long as it is generally used for cosmetics, quasi-drugs and medicines. For example, purified water such as distilled water or ion exchange water, physiological saline, a phosphate buffer aqueous solution or the like can be used.

  The content of the component (D) is 0.1 to 15% by mass, preferably 1 to 10% by mass, and particularly preferably 2 to 6% by mass, based on the total mass of the oil-based cleansing agent. When the content of the component (D) is too small, it may be difficult to obtain the dripping prevention effect desired, and when the content of the component (D) is too large, the washability may be reduced or the transparency of the preparation may be impaired. Sometimes.

  The oil-based cleansing agent of the present invention further contains, if necessary, various components generally used in cosmetics as long as the effects of the present invention are not impaired, such as vitamins, UV absorbers, water-soluble polymers Antioxidants, anionic surfactants, cationic surfactants, amphoteric surfactants, other nonionic surfactants, sequestering agents, ethanol, thickeners such as carboxyvinyl polymers, preservatives, dyes And powders can be blended.

Hereinafter, the present invention will be more specifically described by way of examples and comparative examples.
First, a synthesis example of the component (A) according to the present invention will be shown. In addition, the hydroxyl value was measured according to JIS K155-1.

[Composition example]
Synthesis Example 1: Polyoxyethylene (60 moles) Polyoxybutylene (88 moles) Pentaerythritol Ether (Compound 1)
After 45 g of pentaerythritol, 50 g of toluene and 6 g of potassium hydroxide were charged in an autoclave and air in the autoclave was replaced with dry nitrogen, 2072 g of 1,2-butylene oxide was dropped from a dropping device at 110 ° C. while stirring. The mixture was stirred for 4 hours. Subsequently, 888 g of ethylene oxide was dropped at 110 ° C. and stirred for 1 hour. Thereafter, the reaction product is taken out of the autoclave, neutralized with hydrochloric acid to pH 6 to 7, and subjected to reduced pressure treatment at 115 ° C. for 1 hour to remove contained toluene and water, and finally filtered. The salt was removed to obtain polyoxyethylene (60 mol) polyoxybutylene (88 mol) pentaerythritol ether (compound 1).
The hydroxyl value of compound 1 was 35 mg KOH / g after the 1,2-butylene oxide reaction and 25 mg KOH / g after the ethylene oxide reaction.

Synthesis Example 2: Polyoxyethylene (32 moles) polyoxybutylene (60 moles) diglyceryl ether (compound 2)
After 45 g of diglycerin and 5 g of potassium hydroxide were charged into an autoclave and air in the autoclave was replaced with dry nitrogen, 1171 g of 1,2-butylene oxide was dropped from a dropping device at 120 ° C. while stirring for 4 hours It stirred. Subsequently, at 120 ° C., 382 g of ethylene oxide was dropped and stirred for 1 hour. Thereafter, the reaction product is taken out of the autoclave, neutralized with hydrochloric acid to pH 6 to 7, and subjected to reduced pressure treatment at 100 ° C. for 1 hour to remove water contained therein, and finally filtered for salt Removal gave polyoxyethylene (32 moles) polyoxybutylene (60 moles) diglyceryl ether (compound 2).
The hydroxyl value of Compound 2 was 50 mg KOH / g after the 1,2-butylene oxide reaction and 38 mg KOH / g after the ethylene oxide reaction.

  According to the above-mentioned Synthesis Examples 1 and 2, alkylene oxide derivatives having the composition shown in Table 1 below were synthesized. In Table 1, compounds 1 to 8 are the component (A) according to the present invention, and compounds 9 to 13 are the control component (A '). In addition, x, m and n in Table 1 represent x, m and n in the general formula (1). However, compounds 10 and 11 differ in the binding order of AO and EO to Z in General Formula (1).

Examples 1 to 9 and Comparative Examples 1 to 9
An oil-based cleansing agent is prepared according to an ordinary method using the components and compositions shown in Table 2, and the cleansing property, rinse property (fresh feeling after washing), ease of application (anti-drop effect), stringiness, transparency Was rated.

<Preparation method>
The components shown in Table 2 were uniformly dissolved at 70 ° C., and then cooled to 25 ° C. with stirring.

<Evaluation method>
(A) Washability Lipstick (INTEGRATE GRACY, manufactured by Shiseido Co., Ltd.) is uniformly applied in a circle with a diameter of 2 cm to the inner upper arm of five panelists engaged in cosmetic raw material development, at 25 ° C and 50% relative humidity. It was dried in a constant temperature and humidity chamber for 30 minutes. Each 50 mg of each of the product of the present invention and the comparative product was blended with a finger for 5 seconds, and the fall of the lipstick was evaluated and rated by each panelist in four stages according to the following evaluation criteria. The average of five panelists' evaluations is 2.0 or more and less than 3.0 as "○" (good), 1.0 or more and less than 2.0 as "△" (possible), less than 1.0 as "X" ( It evaluated as bad). However, when two or more panelists gave a score of 0, it was evaluated as "x" (defect).
3: Good familiarity with lipstick.
2: Familiarity with lipstick is somewhat good.
1: The familiarity with lipstick is a little bad.
0: Poor familiarity with lipstick.

(B) Rinsing After the evaluation of the above (a), each panelist evaluated the state immediately after being rinsed with lukewarm water for 5 seconds, and rated it in 5 steps according to the following evaluation criteria. The average of the evaluation of five panelists is 3.0 or more as "◎" (excellent), 2.0 or more and less than 3.0 as "○" (good), 1.0 or more and less than 2.0 as "△" ( Yes, less than 1.0 was evaluated as "x" (defect). However, when two or more panelists gave a score of 0, it was evaluated as "x" (defect).
4: The oil was completely washed away and the feel was very refreshing.
3: The oil was almost washed away and it has a refreshing feel.
2: Some oil remains, feeling somewhat sticky.
1: A considerable amount of oil remains, making it feel sticky.
0: The oil can not be washed out at all and feels quite sticky.

(C) Ease of application When 20 g each of the product of the present invention and the comparative product is filled in a 30 mL glass container and discharged onto the skin using a pump (M pump L-40, manufactured by Higashi Shizuka Container Co., Ltd.) Each of the panelists rated the dischargeability and non-sagging of the ink in 5 levels on the basis of the following evaluation criteria, and rated them. The average of the evaluation of five panelists is 3.0 or more as "◎" (excellent), 2.0 or more and less than 3.0 as "○" (good), 1.0 or more and less than 2.0 as "△" ( Yes, less than 1.0 was evaluated as "x" (defect). However, when two or more panelists gave a score of 0, it was evaluated as "x" (defect).
4: There is no dripping and an appropriate amount can be applied to an appropriate site.
3: There is almost no dripping and an appropriate amount can be applied to an appropriate site.
2: Some dripping is felt, but it can be applied to an appropriate site.
1: There is no dripping, but the dischargeability from the pump is poor, and it is difficult to apply an appropriate amount.
0: The dripping is severe, and the appropriate amount can not be applied to the appropriate site.

(D) Spinnable (no threading)
When the evaluation of (c) above was carried out, each panelist evaluated the spinnability at the time of discharge from the pump or when it became familiar with the skin in four stages according to the following absolute evaluation criteria, and scored. The average of the evaluation of five panelists is 2.0 or more as "○" (good), 1.0 or more and less than 2.0 as "△" (possible), less than 1.0 as "x" (defect) did. However, when two or more panelists gave a score of 0, it was evaluated as "x" (defect).
3: There is no threading at all.
2: Some stringing can be seen, but it soon disappears.
1: It can be seen that it does not lose its ability to fit the skin.
0: The threading is strong and the preparation can not be applied to the proper site.

(E) Transparency When the above (c) was evaluated, the external appearance at 25 ° C. of the present invention and the comparative product filled in a glass pump container was visually evaluated as follows.
○: Transparent
X: There is separation or cloudiness.

  The oil-based cleansing agents of Examples 1 to 9 are good or excellent in any of the washing properties, the rinsing properties (fresh feeling after washing), the easiness of coating (anti-drop effect), the spinnability, and the transparency. there were.

On the other hand, since the oil cleansing agent of Comparative Example 1 uses an alkylene oxide derivative in which x in the general formula (1) is out of the range defined in the present invention, the cleaning property is insufficient, and the rinse property is easy to apply. Was bad.
The oil-based cleansing agent of Comparative Example 2 was poor in rinseability and ease of application since an alkylene oxide derivative in which addition polymerization was performed in the order of EO-AO with respect to Z in General Formula (1) was used. .
The oil-based cleansing agent of Comparative Example 3 is addition-polymerized in the order of EO-AO with respect to Z in the general formula (1), and uses an alkylene oxide derivative whose mass% of EO is outside the range defined in the present invention. And spinnability was poor.
The oil-based cleansing agent of Comparative Example 4 is insufficient in washability and spinnability since it uses an alkylene oxide derivative having n and EO mass% outside the range defined in the present invention in the general formula (1). The sex was bad.
In the oil-based cleansing agent of Comparative Example 5, since m and n in the general formula (1) use an alkylene oxide derivative outside the range defined by the present invention, the cleaning property, the rinse property and the ease of application are insufficient. there were.

Since the oil-based cleansing agent of Comparative Example 6 uses dextrin palmitate instead of the component (A), the rinse property and the ease of application are insufficient, and the transparency is poor.
Since the oil-based cleansing agent of Comparative Example 7 uses dibutyl lauroyl glutamide instead of the component (A), the rinse property is insufficient, and the easiness of application and the transparency are poor.
The oil-based cleansing composition of Comparative Example 8 had insufficient content of the component (A), so that the cleansing properties were insufficient, and the rinsing properties and the easiness of application were poor.
The oil-based cleansing agent of Comparative Example 9 uses a nonionic surfactant whose HLB is out of the range defined by the present invention instead of the component (B), so that the rinseability, the easiness of application, the transparency It was bad.

Claims (1)

0.2 to 20% by mass of the following component (A), 5 to 40% by mass of the component (B), 25 to 80% by mass of the component (C), 0.5 to 15% by mass of the component (D) An oily cleansing agent characterized by having.
(A) Alkylene oxide derivative represented by the following general formula (1) (B) A nonionic surfactant having a polyoxyethylene group and a hydrocarbon group having 12 to 22 carbon atoms and having an HLB of 6 to 15 C) Liquid oil at 25 ° C (D) Water

Z- [O- (AO) _m- (EO) _n- H] _x ... Formula (1)
(Wherein, Z is a residue having 2 or more carbon atoms and having 2 to 9 hydroxyl groups excluding any hydroxyl group, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO Is an oxyethylene group, m is an average addition mole number per hydroxyl group of AO, and is 10 to 50, n is an average addition mole number per hydroxyl group of EO, and is 5 to 50. AO and EO The mass ratio of EO to the total content of is 10 to 50% by mass, and AO and EO are bound in a block.)