WO2005090535A1 - Oil-based detergent preparation - Google Patents

Abstract

A liquid oil-based detergent preparation which comprises (a) 50-95 mass% liquid oily matter, (b) a nonionic surfactant having a C14 or higher alkyl chain and an HLB of 9-16, (c) a higher fatty acid and/or a higher alcohol, and (d) a compound having in the molecule a polyoxypropylene group having a number of moles of oxypropylene added of 5-35.

Description

Oil-based cleaning agent

Technical field

 TECHNICAL FIELD The present invention relates to an oil-based detergent, and more specifically, does not cause turbidity or thickening even when water is mixed, and irritates the mucous membranes such as eyes.

A book on oil-based cleaning agents that have an excellent makeup removal effect and a feeling of use

 Cleansing compositions for make-up can be broadly classified into aqueous cleansing and oily cleansing.The aqueous cleansing is a lotion type consisting of an aqueous ethanol solution of a surfactant, and an aqueous gel type thickening a surfactant with a polymer. Etc. are known. As oil-based cleansing, there are known a cream type in which an oZw emulsion is inverted by massage to exhibit a cleaning function, and an oil type comprising a surfactant oil solution. Among these, the oil type is particularly known to have a high cleaning effect. In recent years, the type of makeup has become the mainstream, with types that prevent secondary adhesion such as foundations and lipsticks, and types that include high molecular weight silicone such as mascara. Its value in the market is very high.

The oil-type cleansing composition is composed of a nonionic surfactant, an oil and a small amount of water, and the surfactant forms a reverse micelle oil solution in which a hydrophilic group is formed inside the oil to form a conjugate. Water is solubilized in the vicinity of the aggregation of the hydrophilic groups to form one phase, and is completely transparent. It is in a state. '

 Due to its microstructure, the Oinole type has a limited ability to completely and completely take in water, the so-called solubilization amount. If water is mixed in beyond the solubilized amount, it will be in a coexisting state with other phases (two-phase state), so it will be white and cloudy as a whole due to the refractive index difference between the two phases. It becomes. Depending on the type of coexisting phase, the desired cleaning performance as a cleaning agent cannot be exhibited, or the user is strongly impressed with the deterioration of cleansing performance, which is not desirable. Also, if water is mixed in beyond the amount of solubilization, the composition thickens and cannot be applied smoothly, making it difficult to blend in with makeup and failing to exert good massage properties. There was a point.

 From this point of view, when using oil-based cleansing agents, they cannot be used on wet faces after washing their hair in the bathroom, as well as using them with wet hands. .

 On the other hand, Japanese Patent Application Laid-Open No. 2000-32,729 / 29 discloses that the use of a polyglycerin fatty acid ester of HLB 10 or more in combination with a polyhydric alcohol of 3 or more causes skin Easy to fit into makeup even when wet. ぃ Cleansing fee is described. However, this method could not prevent the appearance from becoming cloudy, and the composition thickened, making it difficult to blend in with makeup, and in some cases the massage properties were not sufficient.

Further, JP-A-6-165224 and JP-A-2001-270809 disclose a combination of a nonionic surfactant and an amphoteric surfactant, and a nonionic surfactant. A cleansing agent that has high detergency even with hands wet with water is described as a combination of a surfactant and a glyceryl ether derivative. There was a problem with irritation to the mucous membranes. Disclosure of the invention

 The present invention has been made in view of the above-described conventional circumstances, and its purpose is to make the film become cloudy, increase in viscosity and increase the spread of water, and become familiar even if water is mixed in during use. According to the present invention, it is an object of the present invention to provide a liquid oil-based cleaning agent which does not deteriorate and does not deteriorate massage performance, has a good makeup removing effect, and has no irritation to mucous membranes such as eyes.

 (a) 50 to 95 mass of liquid oil. /. ,

 (b) a nonionic surfactant having an alkyl chain having 14 or more carbon atoms and an HLB of 9 to 16;

 (c) higher fatty acids and / or higher alcohols,

 (d) An oil-based detergent comprising a compound having a polyoxypropylene (POP) group having 5 to 35 addition moles in the molecule is provided. In the present invention, as the compound having a polyoxypropylene (POP) group in the molecule of the component (d), POP sorbitol, POP diglycerin, POP glycerin, POP butynoleatene or POP POE (polyoxyethylene) It is preferable that at least one selected from random copolymers, and it is particularly preferable that P〇P sorbite be used.

 In addition, the compounding amount of the nonionic surfactant having a carbon number of 14 or more in the component (b) and an HLB of 9 to 16 relative to the total amount of the detergent is 5 to 40% by mass, Compound having a compounding power s of 1 to 10% by mass of higher fatty acid and / or higher alcohol of component (c) and a compound having a polyoxypropylene group of 3 to 35 in the molecule of component (d). Is preferably 1 to 10% by mass.

Further, the higher fatty acid and Z or higher alcohol of the component (c) are It is preferably a branched higher fatty acid or higher alcohol. According to the present invention, due to the above configuration, even when water is mixed, high cleaning performance is maintained, there is no cloudiness or thickening on the appearance, no reduction in massage performance, and an excellent feeling of use. It can provide an oil-based cleaning agent that is less irritating to the eyes. BEST MODE FOR CARRYING OUT THE INVENTION

 The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a liquid oil, a specific / dione surfactant, a higher fatty acid and / or a higher alcohol, and a compound having a polyoxypropylene group in the molecule. The present inventor has found that an oil-based cleaning agent that combines and solves the above-mentioned problems, and has completed the present invention.

 Hereinafter, the best embodiment of the present invention will be described. It is to be understood that the singular forms (a, an, the) used in this specification and the appended claims also include plural objects unless the context clearly indicates otherwise.

 (a) Liquid oil

 The liquid oil used in the present invention is not particularly limited as long as it is a liquid oil normally used in cosmetics, and any liquid oil can be used.

Specifically, hydrocarbon oils such as liquid paraffin, squalane, orefin oil, light isoparaffin, etc .; triglyceride 2-ethylhexanoate, cetyl 2-ethylhexanoate, and 2-ethylhexane Pentaerythritol phosphate, trimethylolpropane 2-ethynolehexanoate, 2-ethylhexyl palmitate, isosocetyl isononanoate, isopropyl myristate, cetyl octanoate, dineopentane Ester oils such as acid tri-propylene polyglycol; Natural vegetable oils such as olive oil, macadamia nut oil, cottonseed oil, teaseed oil, safflower oil, rice bran oil; silicone oils such as decamethylpentacyclosiloxane, octamethinolete tricyclosiloxane, dimethinolesiloxane, and methylphenylsiloxane And the like, which can be used alone or in any mixture. Particularly preferred liquid oils include liquid paraffin, cetyl 2-ethylhexanoate, decamethylpentasiloxane, and the like.

 The compounding amount of the liquid oil is 50 to 95% by mass, and preferably 60 to 80% by mass, based on the whole oil-based cleaning agent. If the amount of the liquid oil is less than 50% by mass, it is difficult to obtain a sufficient cleaning effect, and if it exceeds 95% by mass, the water-washing property is impaired.

 (b) Nonionic surfactant having an alkyl chain of 14 or more carbon atoms and an HLB of 9 to 6

 As used in the present invention, the alkyl chain has 14 or more carbon atoms and HLB is 9

The nonionic surfactants of No. 1 to No. 16 are not particularly limited as long as they are commonly used in cosmetics, and any surfactant can be used. For example, P O E (10) Reinoreethenore (HLB = 10), Ρ

O E (10) Hexadecyl ether (HLB = 10), P o Ε (4

0) Glyceryl soy sauce (HLB = 17), POE (20)

Glyceryl Louis Sostearate (HLB = 14), POE (8) Glyceryl Louis Sostearate (HLB = 9), POE (40) Glyceryl Lysoisostearate (HLB = 11), POE (30) Glyceryl liloate (HL B = 10), POE (10) Monoisostearate (HLB = 12), POE (30) Hardened castor oil (HLB = 11), POE ( 50) Hardened castor oil monoisostearate (HLB = 12), POE (60) Hardened castor oil trisostearate (HLB = 10), sorbitan monoisostearate (HLB) = 9), and POE (8) glyceryl isostearate is particularly preferred.

 Here, when a surfactant having an alkyl group having 13 or less carbon atoms is used, the mucous membranes such as eyes are strongly irritated, and these are used particularly in a taring oil applied to a face or the like. It is not preferable. HLB is from 9 to 16, preferably from 9 to 14. If HLB is less than 9, it becomes cloudy when water is mixed, and if it exceeds 16, it is difficult to obtain a uniform composition, which is not preferable.

 The amount of the nonionic surfactant described above is preferably 5 to 40% by mass, more preferably 20 to 40% by mass, based on the whole oil-based detergent. If the amount of the nonionic surfactant is small, the mixture may become cloudy when mixed with water, and if it is too large, the viscosity may be increased when mixed with water and the spread may be increased.

 (c) Higher fatty acids and Z or higher alcohols

 As the higher fatty acid used in the present invention, all higher fatty acids usually used for cosmetic bases and the like can be applied.

 Specific examples include higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, araquinic acid, behenic acid, and other saturated fatty acids; 2-palmitoleic acid, petroserin Acids, unsaturated fatty acids such as oleic acid, elaidic acid, ricinoleic acid, linoleic acid, linoleic acid, linolenic acid, and arachidonic acid; and branched fatty acids such as isostearic acid.

Higher alcohols include saturated higher alcohols such as laurine alcohol, myristolenorecole, cetinoleanolecole, stealinelenorecole and behenyl alcohol; and unsaturated higher alcohols such as oleyl alcohol. Branched higher alcohols such as alcohol, otatyl dodecanol, hexyldecanol, and sostearyl alcohol. The .

 In the present invention, the component (C) is preferably a branched higher fatty acid or a higher alcohol from the viewpoint of system stability. It is particularly preferable to use isostearic acid and isostearyl alcohol, and it is particularly preferable to use isostearic acid.

 The blending amount of these higher fatty acids or higher alcohols is preferably 1 to 10% by mass, and more preferably 1 to 5% by mass. When the amount is small, it may be difficult to obtain a uniform composition. On the other hand, when the amount is large, the washing property may be impaired.

 (d) Compound having a polyoxypropylene (POP) group having 5 to 35 moles of addition in the molecule

 Examples of the compound having a propylene oxide group used as the component (d) in the present invention include, for example, 2-chain polyalkylene glycols, multi-chain polyalkylene glycols, and 2-chain polyalkylene glycol. Polyoxyalkylene groups containing a POP group, such as kill ethers, multi-chain polyoxyalkylene alkyl ethers, two-chain polyoxyalkylene esters, and multi-chain polyoxyalkylene esters, are particularly preferred.Polypropylene sorbitol Is preferred. When the number of moles of added polyoxypropylene is 2 or less or 40 or more, the stability of the system is impaired, which is not preferable. As the component (d), more specifically, POP (20 to 35) sorbit, POP (5 to 10) diglycerin, POP (6 to 20) glycerin, POP

(5 to 35) butyl ether or P O P (5 to 35) · P O E (5 to 30) random copolymers, with P O P sorbite being particularly preferred.

Here, the POP / POE random copolymer has the following general formula (I) It is represented by ■

^{R 1 O - [(PO)} m (EO) n] - 2 ·· (I)

(Where PO is an oxypropylene group, EO is an oxyethylene group, m and n are the average number of moles of an oxypropylene group and an oxethylene group having 3 to 4 carbon atoms, respectively, l ^ m≤70, l≤n ≤ 7 0, the ratio of Okishe styrene groups to the sum of O carboxymethyl propylene and Okishiechiren group is 2 0-8 0% by weight. Okishipuro pyrene group and Okishiechiren group is added to the random form. R ¹ and R ² is a hydrocarbon group or a hydrogen atom having 1 to 4 carbon atoms which may be the same or different, and the ratio of the number of hydrogen atoms to the number of hydrocarbon groups of R ¹ and R ² is 0.15 or less. )

 The details of the method for producing a random copolymer of POP and POE are described in, for example, JP-A-2003-113203.

The compounding amount of the compound having a POP group of the component (d) is preferably 1 to 10 mass ⁰ /. , And the good Ri preferably from 1 to 5 weight _^0/0. If the amount is less than 1% by mass, there is a risk that the effect of suppressing turbidity when water is mixed during use and an increase in viscosity to increase the spread may not be sufficiently exhibited. If it is added in excess of mass%, the stability of the system may be impaired.

The oil-based cleaning agent of the present invention is usually compounded in the fields of cosmetics and pharmaceuticals in addition to the above-mentioned components (a) to (d), which are essential components of the present invention, as long as the effects of the present invention are not impaired. Various additional components can be blended. For example, water-soluble active substances such as vitamin B group, vitamin C and derivatives thereof, tranexamic acid, pantothenic acid and derivatives thereof, and vitamins such as bition, water-soluble polymers such as guar gum, xanthan gum, and polyvinyl alcohol, Thickeners, buffers such as arginine, aspartic acid, citric acid, tartaric acid, and lactic acid; chelating agents such as EDTA Agents, preservatives, etc., ultraviolet absorbers, various powders, various dyes, and the like.

 The dosage form of the oil-based cleaning agent of the present invention is not particularly limited, and can be used as a liquid preparation, a gel preparation, an aerosol preparation, a sheet impregnated preparation, etc. Therefore, a liquid preparation is more preferable.

 The oil-based cleansing agent of the present invention can be used as a skin cleansing agent in, for example, the cosmetics field, the quasi-drug field, and the pharmaceutical field. In particular, it is preferable to use it as a makeup cleaning agent.

Example

 Next, examples of the present invention will be described. However, it goes without saying that the scope of the present invention is not limited to these examples.

Examples 1 to 10 and Comparative Examples 1 to 6

 An oil-based cleaning agent (cleaning oil) having the composition shown in Tables I to V below is prepared by a conventional method, and the stability of the composition, the transparency when mixed with water, and the Evaluation of skin extension and eye irritation was performed, and the results are shown in the respective tables. The unit of the compounding amount is mass%.

 In the table, the polyoxyethylene polyoxypropylene dimethyl ether is obtained by randomly adding a polyoxypropylene group and an oxyethylene group, and is described in JP-A-2003-113203. Manufactured in the manner described.

 The evaluation methods performed in each example and comparative example are as follows.

 (1) Evaluation of composition stability

The stability of the composition was evaluated by placing the test samples of Examples and Comparative Examples in 50 ml transparent glass bottles with screw caps, at 0 ° C, 25 ° C, and 50 ° C. The test was performed by leaving it at a temperature and observing its appearance for one month, and evaluated according to the following criteria. (Evaluation criteria) ·

 G: The appearance did not change at each temperature.

 F: A small amount of precipitate is formed at 0 ° C, but when returned to 25 ° C and allowed to stand, the precipitate disappears and returns to a uniform and normal appearance.

 P: Formation of precipitate or two-layer separation at any temperature of 0 ° C, 25 ° C and 50 ° C.

 (2) Evaluation of transparency when water is mixed

 The professional evaluation panel evaluated the state of the sample according to the following criteria when 2 g of the sample of the example and the comparative example were used with a hand wetted with 1.5 g of water.

 (Evaluation criteria)

 E: Transparent.

 G: Translucent.

 F:-part becomes white.

 P: Cloudy.

 (3) Evaluation of skin spread when water is mixed

 The expert evaluation panel evaluated the elongation to the skin when applying 2 g of the sample of the example and the comparative example to the face with a hand wetted with 1.5 g of water according to the following criteria.

 (Evaluation criteria)

 E: Light and easy to blend with makeup.

 G: It feels a little light.

 F: It's hard to spread with make-up.

 (4) Evaluation of eye irritation

Ten professional panels with eye makeup were asked to use the test purpose without notifying them. After use, they were asked if they had any eye irritation and evaluated according to the following criteria. (Evaluation criteria)

 G: Out of 10 people, 1 or less reported irritation to eyes. F: 2 or 3 out of 10 people report eye irritation

P Out of 0 people, 4 or more people report eye irritation

Table I

 Example Example Example Example Example Example Example Comparative example

1 2 3 4 5 6 1 Liquid paraffin 40 40 40 40 40 40 40

II

Cetyl octoate 20 20 20 20 20 20 20

P0E (8) glyceryl lysostearate 30 30 30-one--

(HLB = 9)

 POE (IO) glyceryl lysostearate 1--30---

(HLB = 12)

 P0E (20) glyceryl lysostearate 1 ―-1 30-1

P0E (20) hydrogenated castor oil (HLB = 11)-one--one 30 one

P0E (8) Glyceryl disisostearate-_----30

(HLB = 5)

Isostearic acid 5-5 5 5 5 5 Isostearyl alcohol 1 5-1---Polyoxyethylene polyoxypropylene 5 5----1 Dimethyl ether (7E0) (12P0)

Polyoxypropylene (25) sorbit--5 5 5 5 5 Composition stability GGGGGGG Transparency when mixed with water GGEEEEP Spread on skin when mixed with water GGEEEEG Eye irritation GGGGGGG

Table π

 Example 1 Example 7 Example 8 Example 9 Example 10 Liquid paraffin 40 40 40 40 40 Cetyl octoate 20 20 20 20 20

Ρ0Ε (8) glyceryl lysostearate (HLB = 9) 30 30 30 30 30

POE (IO) laurate (HLB = 12.5)--1-isostearic acid 5.5 5 5 5 5 isostearinoline alcohol-1---Polyoxyethylene polyoxypropylene 5-1--Dimethyl ether (7E0 12P0)

Polyoxypropylene (25) sorbit-5---Polyoxypropylene (20) butyl ether-5--Polyoxypropylene (9) diglyceryl ether-1-5-Polyoxypropylene (16) glycol--1-5 Polyoxypropylene (40) butyl ether---1-Polyoxyethylene (10) sorbitol 1-1--Polyoxyethylene (11) methyl glucoside-1---Polyoxyethylene polyoxypropylene 1 1---Dimethyl ester Tell (25E0) (40P0)

Composition stability GGGGG Transparency when mixed with water GEGGG Skin spread when mixed with water GEEEE Eye irritation GGGGG

Table m

 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Liquid paraffin 40 40 40 40 45 Cetyl octoate 20 20 20 20 20

POE (8) glyceryl isostearate (HLB = 9) 30 30 30 30-

POE (IO) laurate (HLB = 12.5)---30 isostearic acid 5.5 5 5 5 isosteararyl alcohol---1 1 polyoxyethylene polyoxypropylene-1-1 1 dimethyl ether (7E0) (12P0 )

Polyoxypropylene (25) sorbit---1-1 Polyoxypropylene (20) butyl ether---1-1 Polyoxypropylene (9) diglyceryl ether-1-1-Polyoxypropylene (16) dalicol---1-1 Polyoxypropylene (40) butyl ether 5--11 Polyoxyethylene (10) sorbit-5-11 Polyoxyethylene (11) methyl darcoside--5-11 Polyoxyethylene polyoxypropylene---5-Dimethyl ether (25E0) (40P0)

Composition stability PGGPG Transparency when mixed with water FFFGF Spread on skin when mixed with water FFFGF Stimulation of eyes GGGGP

Next, formulation examples of the oil-based cleaning agent according to the present invention will be described.

Example 11

 Component Mass% Liquid paraffin 3 4.4 Palmitic acid 2-ethyl alcohol

 Monoi Sostellarinate Sonorebitan 3 5

 (H L B = 9)

 I sostearyl alcohol 5

 P O P (7) Diglycerin 5 Tocopherol acetate 0.1 Water 0.5 Example 1 2

 Ingredient mass%

 Liquid paraffin 3 2.6 years old Refiners 5 years old

 Tri 2-ethyl hexyl hexanoate 20

 Methynorefinopolysiloxane 5

 P O E (10) Oleyl ether 3 0

 (H L B = 10)

 Isostearic acid 1

 P O P (15) Glycerin 5

 Tocopherol acetate 0.1 Water 0.3 Alcohol 1

Example 1 3

Component Mass% Liquid paraffin 39.4 Pentaerythritol 2-ethylhexanoate 20

 Decamethylpentacyclosiloxane 5

 POE (8) Glyceryl sostearate 20

 (H L B = 9)

 Isostearic acid 1 0

 Polyoxyethylene (25) · Poly

 Oxypropylene (40) Dimethinole ether 5

 Tocopherol acetate 0.1 Water 0.5

Example 14

 Ingredients% by weight Oligomers 37.6 Safflower oil 5 Tripropylenepentadonic acid polypropylene glycol 2 0 POE (30) Hardened castor oil (HLB = 1 1) 30

2-octyl dodecanol 5 Polyoxypropylene (20) butyl ether 1 Dibutynole hydroxytonolene 0.1 Water 0.3

Example 1 5

 Ingredients Mass% Liquid paraffin 39.5 Cetyl octanoate 20 Cyclomethicone 5 Macadamia nut oil 0.1

POE (20) Glyceryl sostearate 8 (HLB = 1 4)

 P O E (20)

 (H L B = 7)

Sostearic acid 1 Polyoxyprev pyrene (25) Sorbit 5 Tocopherol acetate 0 Water 0 Alcohol 1

Claims

The scope of the claims 1. (a) 50 to 95% by mass of liquid oil,  (b) a nonionic surfactant having an alkyl chain having 14 or more carbon atoms and an HLB of 9 to 16;  (c) higher fatty acids and / or higher alcohols,  (d) An oil-based detergent comprising a compound having a polyoxypropylene (POP) group having a molar number of addition of 5 to 35 in the molecule.  2. The compound having a polyoxypropylene (POP) group in the molecule of the component (d) is POP sorbitol, POP diglycerin, POP glycerin, POP butyl ether or POP · POE (polyoxyethylene) random copolymer. 2. The oil-based cleaning agent according to claim 1, wherein the oil-based cleaning agent is at least one selected from coalescing.  3. The oil-based cleaning agent according to claim 2, wherein the compound having a polyoxypropylene (POP) group in the molecule of the component (d) is a POP sorbite.  4. The compounding amount of the nonionic surfactant having a carbon number of the alkyl chain of the component (b) of 14 or more and the HLB of 9 to 16 with respect to the total amount of the detergent is 5 to 40% by mass, The compound having a higher fatty acid and Z or higher alcohol of the component (c) in an amount of 1 to 10% by mass, and a compound having a polyoxypropylene group having an addition mole number of 3 to 35 in a molecule of the component (d). The oil-based detergent according to claim 1, wherein the amount is 1 to 10% by mass.  5. The oily detergent according to claim 1, wherein the higher fatty acid and / or higher alcohol of the component (c) is a branched higher fatty acid or higher alcohol.