JP2003073257A - Skin cleanser composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cleanser composition having good cleansing effect, foamability, foam quality, rinsability, feeling in finish and low-temperature stability, and developing no greasy feeling even after long-term continual use. SOLUTION: This skin cleanser composition comprises (A) a higher fatty acid salt, (B) an anionic surfactant having sulfate group, (C) an amphoteric polymer and (D) a cationic polymer.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a skin cleansing composition, which is excellent in detergency, foaming property, foam quality, rinsability, finish feeling, low temperature stability, and has a sticky feeling even after continuous use for a long period of time. The present invention relates to a skin cleansing composition that does not occur.

[0002]

2. Description of the Related Art In recent years, skin cleansing agents such as body shampoos and facial cleansers have a rich foaming property, a creamy foam quality, a rinsing property, and a tight feeling after use, in addition to their original purpose of cleansing properties. There is a need for a feeling of finish, such as smoothness without any scratches. Conventionally, for the purpose of increasing foam and adjusting foam quality, higher fatty acid alkanolamides such as lauric acid monoethanolamide and coconut oil fatty acid diethanolamide have been widely used in combination with a cleaning base such as anionic surfactant and amphoteric surfactant. Has been. Further, as an agent for adjusting the feeling of finish, attempts have been made to add oil or polymers.

However, when oils or polymers are blended, there are problems that foaming or foam quality is deteriorated, slimy at the time of rinsing, and sticky feeling is caused by continuous use for a long period of time. Incorporation of higher fatty acid diethanolamide inevitably causes foaming and deterioration of foam quality due to oil content, and when a large amount of higher fatty acid diethanolamide is added to improve this, rinsing properties and a feeling of finish are adversely affected. There was a problem such as exerting it. Further, when higher fatty acid monoethanolamide or the like was used, crystals were sometimes precipitated at low temperature.

[0004]

The object of the present invention is to provide a skin cleansing composition excellent in detergency, foaming property, foam quality, rinsing property, feeling of finishing and low temperature stability against the background of the above prior art. There is.

[0005]

Means for Solving the Problems As a result of intensive studies for achieving the object of the present invention, the present inventors found that the combination of a specific surfactant and a specific polymer in a skin cleansing composition causes the above-mentioned drawbacks. The present invention has been completed and the present invention has been completed.

That is, claim 1 of the present invention is a skin cleansing composition containing the following (A) to (D). (A) Higher fatty acid salt (B) Sulfate group-containing anionic surfactant (C) Amphoteric polymer (D) Cationic polymer

According to claim 2 of the present invention, as the higher fatty acid salt (A), the total mass of fatty acid salts having 13 or less carbon atoms is less than the total mass of fatty acid salts having 14 or more carbon atoms, and myristic acid salt. 1 or 2 or more kinds selected from the group consisting of, a palmitate and a stearate, and 15 to 50% by mass of laurate in total with respect to the total amount of the detergent composition. A skin cleansing composition. A third aspect of the present invention is the skin cleansing composition according to the first or second aspect, which comprises, as the (C) amphoteric polymer, an acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer. A fourth aspect of the present invention is the skin cleansing composition according to any one of the first to third aspects, wherein the cationic polymer (D) contains a dimethyldiallylammonium chloride / acrylamide copolymer. Further, claim 5 of the present invention is the skin cleansing composition according to any one of claims 1 to 4, further comprising (E) an amphoteric surfactant and / or a semipolar surfactant. And Claim 6 of the present invention is the skin cleansing composition according to any one of Claims 1 to 5, which does not substantially contain higher fatty acid diethanolamide.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The constitution of the present invention will be described in detail below.

The higher fatty acid used in the higher fatty acid salt of the present invention is not particularly limited, but generally has 8 to 22 carbon atoms.
What is used. Specifically, lauric acid, myristic acid, palmitic acid, stearic acid, arachidonic acid,
Behenic acid, isostearic acid, oleic acid, 2-palmitoleic acid, petroselinic acid, oleic acid, elaidic acid, ricinoleic acid, linoleic acid, linoelaidic acid, linolenic acid, arachidonic acid, and other coconut oil fatty acid, palm kernel fatty acid Mixed fatty acids such as beef tallow fatty acid can also be used.

The base as a counter ion of these higher fatty acids includes inorganic bases such as sodium, potassium and magnesium, ammonium, monoethanolamine, diethanolamine, triethanolamine and 2-
Examples thereof include alkanolamines such as amino-2-methylpropanol and 2-amino-2-methylpropanediol, and basic amino acids such as lysine and arginine.

These higher fatty acid salts may be blended as a fatty acid salt, or a fatty acid and a base may be blended independently to form a fatty acid salt in the formulation system. In addition, these higher fatty acid salts may be used alone or in combination of two or more, and as the higher fatty acid salt, the total mass of the fatty acid salts having 13 or less carbon atoms is the fatty acid salt having 14 or more carbon atoms. It is desirable to have less than the total mass. If the total mass of fatty acids having 13 or less carbon atoms is relatively large, bubbles may become coarse.

Of these higher fatty acid salts, one or more selected from the group consisting of myristic acid salts, palmitic acid salts and stearic acid salts, and laurate are 10 to 60% by mass in total. (Hereinafter, abbreviated as%.) It is desirable to contain, and more desirably 15 to 5 in total.
It is 0%. If the total amount of these fatty acid salts is less than 10%, foaming and foam quality may not be sufficient, and 60%
If it exceeds, the stability at low temperature may deteriorate. Even when other higher fatty acid salts are contained, it is desirable that the blending amounts of these four higher fatty acid salts be within the above range. In addition, the neutralization ratio of the higher fatty acid with a base is preferably 80% to 110%, and more preferably 90% to 100%, especially in the case of a liquid form, but it is necessary to adjust the viscosity and appearance. Therefore, the neutralization rate may be intentionally reduced to mix the unneutralized higher fatty acid in a mixed state.

The sulfate group-containing anionic surfactant used in the present invention is not particularly limited, but sulfate salts such as alkyl sulfates, alkyl ether sulfates and alkyl amide ether sulfates are preferably used. Alkyl group of sulfate ester has about 8 carbon atoms
Those having a carbon number of 22 to 22 are used, those having a carbon number of 10 to 18 are desirable, and those having a carbon number of 10 to 16 are desirable. Specific examples of desirable compounds include lauryl sulfate, myristyl sulfate, cetyl sulfate, coconut oil alkyl sulfate, palm kernel oil alkyl sulfate, polyoxyethylene (hereinafter, referred to as PO
E)) lauryl ether sulfate, POE myristyl ether sulfate, POE cetyl ether sulfate, POE
Examples thereof include coconut oil alkyl ether sulfate, POE palm kernel oil alkyl ether sulfate, and POE coconut oil fatty acid monoethanolamide sulfate. Among these, POE alkyl ether sulfate having an alkyl group having 12 to 14 carbon atoms is used. , Especially desirable.

As a base as a counter ion of the sulfate group of these surfactants, inorganic bases such as sodium, potassium and magnesium, ammonium, monoethanolamine, diethanolamine, triethanolamine, 2-
Examples thereof include alkanolamines such as amino-2-methylpropanol and 2-amino-2-methylpropanediol, and basic amino acids such as lysine and arginine. The average number of POE groups in the POE alkyl ether sulfate is preferably 0.5 to 10 moles, more preferably 1 to 5 moles, and particularly preferably 2 to 4 moles.

These anionic surfactants having a sulfate group may be used alone or in combination of two or more,
The composition of the present invention preferably contains 1 to 20%, more preferably 2 to 10%. If it is less than 1%, the foaming effect due to the synergistic effect with the higher fatty acid salt may not be obtained in some cases, and if it exceeds 20%, the synergistic effect in proportion to the blended amount may not be obtained.

The composition of the present invention contains an amphoteric surfactant and / or
Alternatively, when a semipolar surfactant is added, the foam quality is further improved due to a synergistic effect. As the amphoteric surfactant,
Although not particularly limited, for example, alkylbetaine type, amidobetaine type, sulfobetaine type, amidosulfobetaine type, imidazolinium betaine type, amino acid type, phosphobetaine type, phosphate ester type, and the like, semipolar surfactant The agent is not particularly limited, but examples thereof include amine oxide type and the like. Among these, it is desirable to blend an amphoteric surfactant, and further, lauryldimethylaminoacetic acid betaine, alkyl betaine type such as myristyl betaine, lauric acid amidopropyl betaine, myristic acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine. , Amide betaine type such as palm kernel oil fatty acid amide propyl betaine, commercially available as 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine (trade name: Obazoline 662N [manufactured by Toho Kagaku], Imidazolinium betaine type surfactants such as softazoline CL-R (manufactured by Kawaken Fine Chemicals Co., Ltd.) are preferable, and amido betaine type amphoteric surfactants are particularly preferably used.

These amphoteric surfactants and semipolar surfactants can be used alone or in admixture of two or more.
The composition of the present invention is preferably incorporated in an amount of 0.1 to 10%, more preferably 0.5 to 5%.
If it is less than 0.1%, the foaming effect due to the synergistic effect may not be obtained in some cases, and even if it exceeds 10%, the synergistic effect in proportion to the blended amount may not be obtained.

The amphoteric polymer used in the present invention may be any of a homopolymer, a copolymer, a terpolymer, or a monomer polymer having more than one of them, and has 1 in the molecule.
Polymer containing a monomer having one kind or two or more kinds of betaine skeletons (including a copolymer with one kind or two or more kinds of other monomers), one kind or two or more kinds of anionic monomers in the molecule, and 1 Polymers containing one or more kinds of cationic monomers (including copolymers with one or more kinds of other monomers), etc., and polymers in which an anion group and a cation group are present in the molecule. Any form may be used.
Among these, acrylic acid / dimethyldiallylammonium chloride copolymer (trade name: MERQUAT 28
0,295 (manufactured by Nalco) and the like, acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer (trade name: MERQUAT PLUS 3330, 333).
1 (manufactured by Nalco), etc.), acrylic acid / methacrylamidopropyltrimethylammonium chloride / methyl acrylate copolymer (trade name: MERQUAT 2001 [manufactured by Narco], etc.), and more preferably acrylamide / acrylic acid. A dimethyldiallylammonium chloride copolymer is used, in which the mass ratio of acrylic acid monomer in the polymer molecule is 20% or more and the mass ratio of dimethyldiallylammonium chloride monomer is 60%.
The following are particularly preferably used.

These amphoteric polymers can be used alone or in admixture of two or more, and in order to give sufficient performance within the range not impairing usability, 0.001 to 0.001 is used in the composition of the present invention. It is preferable to add 5%, more preferably 0.01 to 2%.

The cationic polymer used in the present invention is not particularly limited, but for example, a cationized cellulose derivative (trade name: polymer JR-400 [UCC
Company], Leoguard G [Lion Company], Kachinaru H
C-200 [manufactured by Toho Chemical Industry Co., Ltd.], cationized guar gum derivative (trade name: Jaguar C-17 and C-13).
-S [manufactured by Celanese, etc.], quaternized polyvinylpyrrolidone derivative (trade name: GAFQUAT 734, 755
[Manufactured by ISP] and the like), dimethyldiallylammonium derivative (trade name: MERQUAT 100, 550, 22)
20 [manufactured by Nalco, etc.], polyglycol polyamine condensate (trade name: Polycoat NH [manufactured by Henkel], etc.),
Cationized starch (trade name: SENSOMER CI-5
0 (manufactured by Nalco) and the like, cationized polypeptide and the like. Among these, a cationized cellulose derivative, a cationized guar gum derivative, and a dimethyldiallylammonium derivative are preferable, and more preferably, a dimethyldiallylammonium chloride / acrylamide copolymer is used.

These cationic polymers may be used alone or in combination.
It is possible to mix and use one or more kinds, and in order to give sufficient performance within the range where the usability is not impaired, it is preferable to add 0.001 to 5% in the composition of the present invention, and more preferably 0 0.01-2% is blended.

According to the composition of the present invention, the desired effect can be obtained without substantially blending the higher fatty acid diethanolamide which has been generally used in the past with the expectation of a foaming effect and a thickening effect. In addition, the drawbacks of rinsing property and feeling of finishing due to the addition of a large amount of higher fatty acid diethanolamide can be eliminated. Incidentally, when a mixed raw material containing a higher fatty acid diethanolamide is added as an additive, or when a higher fatty acid diethanolamide is added in the expectation of other effects, it is not a range in which the target performance of the present invention is affected. If there is no problem. The term "not substantially blended" means that the blended amount in the composition of the present invention is 1% or less, preferably 0.1% or less, and more preferably 0%.

The detergent composition of the present invention may optionally contain ingredients commonly incorporated in detergents, such as higher alcohols,
Lanolin derivatives, oily ingredients such as fatty acid esters of polyethylene glycol, moisturizing ingredients such as propylene glycol, glycerin, polyethylene glycol, pearlescent agents such as fatty acid ethylene glycol, other water-soluble polymer compounds (nonionic, anionic, etc. Including), animal- and plant-derived extracts, sequestering agents, preservatives, pH adjusters,
An ultraviolet absorber, an antioxidant, a dye, a fragrance, etc. can be appropriately mixed.

The cleansing composition of the present invention can be applied to any of the skin cleansing agents for the scalp and various parts of the body, and can be suitably used as a cleansing agent for body such as body shampoo, hand soap and face wash. Further, it can be used in various forms such as solid, liquid, cream, gel, aerosol foam and mist, and is preferably used as a liquid detergent.

[0025]

EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited thereto. Prior to the examples, the test method and evaluation method adopted in each example will be described.

A) Detergency Test Method A 5 cm × 5 cm wool muslin cloth with 0.4% chloroform solution of 7% lanolin and 0.005% Sudan III.
mL was evenly applied and dried, and the contaminated cloth was placed in a glass cylinder of about 100 mL containing 40 mL of a 3% detergent solution, and shaken in a constant temperature bath at 40 ° C. for 15 minutes,
Rinse the contaminated cloth well under running water, dry it, check the reflectance,
The cleaning rate was calculated by the following formula.

The evaluation criteria were set as follows. ◎ ... Excellent detergency Detergency rate 85% or more ○: Good detergency Detergency: 70% or more and less than 85% △: Detergency is normal Normal cleaning rate is 55% or more and less than 70% ×: Poor cleanability Cleaning rate less than 55%

B) Feeling of use / finishing test panel (30 persons), a body shampoo of the following composition was applied as a control to the left foot and the left hand, and a sample was applied to the right foot and the right hand, respectively, and foamed when washed simultaneously. , Foam quality, rinsability during rinsing, no feeling of tightness after use,
The finished feeling (non-stickiness) was sensory-evaluated for each of the left and right hands and feet. In addition, wash 1 times a day as above.
Sensory evaluation was performed according to the above items for the sticky feeling after drying after repeated use for 30 days.

[0029] Control (%) ・ Palm oil fatty acid potassium 20.0 ・ Cationized cellulose derivative 0.5   (Product name: Polymer JR-400 [UCC]) ・ Residue of purified water

The criteria for evaluation were set as follows. <Bubbling and foam quality> ◎ ・ ・ ・ More than 19 people answered that they are good ○: 16-18 people answered that they are good △: 8 to 15 people answered that they were good ×: The number of people who answered “good” is 7 or less

<Tightening sensation during rinsing and stickiness after drying> ◎ ... 19 or more respondents who said that it was better than control ○ ・ ・ ・ 16 to 1 respondents who answered that it was better than control
8 people △ ・ ・ ・ 8 to 15 people answered that it was better than control
No. of people: 7 or less respondents said better than control

C) Low-temperature stability test method The sample was left in a constant temperature bath at 0 ° C. for 1 week, and the presence or absence of crystal precipitation was visually confirmed.

The evaluation criteria were set as follows. ◎ ... no crystal precipitation ×: Crystal precipitation is observed

Examples 1 to 8 and Comparative Examples 1 to 6 Body shampoos having the composition shown in Table 1 were prepared by a conventional method, and the washability, foaming, foam quality, rinsing property at the time of rinsing and tautness after use were obtained. The lack of feeling, the feeling of finish (no stickiness), and the stability at low temperature were evaluated, and the results are shown in Table 1.

[0035]

[Table 1]

As is clear from Table 1, all the body shampoos of Examples 1 to 8 using the components of the present invention showed excellent performance.

On the other hand, in Comparative Examples 1 to 6, the characteristics of any of the feeling of use, the feeling of finish and the stability at low temperature were inferior, and the object of the present invention could not be achieved.

[0038] Example 9 (body shampoo) (mass%) ・ Lauric acid 8.0 ・ Myristic acid 7.0 ・ Palmitic acid 6.0 -POE (3) sodium lauryl ether sulfate 4.0 -POE (3) sodium myristyl ether sulfate 1.5 ・ Palm oil fatty acid acylglutamic acid triethanolamine 5.0 ・ Lauric acid amidopropyl betaine 1.0 * 2-alkyl-N-carboxymethyl-N-       Hydroxyethyl imidazolinium betaine   (Product name: softazoline CL-R; manufactured by Kawaken Fine Chemical Co., Ltd.) 1.0 ・ Acrylamide ・ Acrylic acid ・       Dimethyldiallylammonium chloride copolymer liquid   (Brand name: MERQUAT PLUS 3330; Nalco) 1.5 ・ Dimethyldiallylammonium chloride / acrylamide copolymer liquid   (Brand name: MERQUAT 550; Nalco) 1.0 ・ Cationized guar gum derivative   (Brand name: Laborgum CG-M8M; manufactured by Dainippon Pharmaceutical Co., Ltd.) 0.1 ・ Ethylene glycol distearate 2.0 ・ Hydroxypropyl methylcellulose 0.3 ・ POE cetostearyl hydroxymyristyrene ether   (Product name: Elfacos GT282S; manufactured by Lion Akzo) 0.2 ・ Alkyl glucoside   (Product name: APG600; manufactured by Cognis) 2.0 ・ Hydrolysis wheat liquid   (Product name: GLUADIN W-20; manufactured by Cognis) 0.5 ・ High molecular silicone aqueous emulsion (Brand name: BY22-029       [Toray Dow Corning Silicone]] 2.0 ・ Glycerin 5.0 ・ Propylene glycol 5.0 ・ EDTA 0.1 ・ Potential amount of potassium hydroxide ・ Dye / fragrance ・ Water balance

A body shampoo (pH 9.0) having the above composition was prepared by a conventional method, and the feeling of use, the feeling of finish and the stability at low temperature were evaluated, and all the properties were excellent, and good results were obtained.

[0040] Example 10 (hand soap) (mass%) ・ Lauric acid 5.0 ・ Myristic acid 8.0 ・ Palmitic acid 5.0 -POE (3) sodium lauryl ether sulfate 10.0 ・ Palm kernel oil fatty acid amide propyl betaine 0.5 ・ Lauryl dimethylamine oxide 2.0 ・ Acrylamide ・ Acrylic acid ・       Dimethyldiallylammonium chloride copolymer liquid   (Brand name: MERQUAT PLUS 3330; Nalco) 1.0 ・ Dimethyldiallylammonium chloride / acrylamide copolymer liquid   (Brand name: MERQUAT 550; Nalco) 2.0 ・ Ethylene glycol distearate 1.5 ・ Hydroxyethyl cellulose 0.3 ・ Lemon extract     (Product name: Lemon Extract BG; Maruzen Pharmaceutical Co., Ltd.) 0.2 ・ Carrot extract     (Product name: carrot extract BG; manufactured by Maruzen Pharmaceutical Co., Ltd.) 0.2 ・ Hydrolysis silk liquid     (Product name: Promois Silk-1000; manufactured by Seiwa Kasei Co., Ltd.) 1.0 ・ Glycerin 5.0 * 1,3-butylene glycol 5.0 ・ EDTA 0.1 ・ Triethanolamine Suitable amount ・ Dye / fragrance ・ Water balance

A hand soap (pH of the above composition is prepared by a conventional method.
8.5) was prepared and the feeling of use, the feeling of finish and the stability at low temperature were evaluated, and all the properties were excellent, and good results were obtained.

[0042] Example 11 (face wash) (mass%) ・ Lauric acid 7.0 ・ Myristic acid 6.0 ・ Palmitic acid 4.0 ・ Stearic acid 2.0 -POE (3) coconut oil alkyl ether sodium sulfate 8.0 ・ Lauric acid amidopropyl betaine 2.5 ・ Acrylamide ・ Acrylic acid ・       Dimethyldiallylammonium chloride copolymer liquid   (Brand name: MERQUAT PLUS 3330; Nalco) 1.0 ・ Dimethyldiallylammonium chloride / acrylamide copolymer liquid   (Brand name: MERQUAT 550; Nalco) 2.0 ・ Cationized cellulose derivative   (Brand name: Katinal HC-200; manufactured by Toho Chemical Co., Ltd.) 0.05 ・ Ethylene glycol distearate 2.5 ・ Yukinoshita extract     (Product name: Yukinoshita extract BG; manufactured by Maruzen Pharmaceutical Co., Ltd.) 1.0 ・ Seaweed extract (trade name: Kaiso extract; manufactured by Maruzen Pharmaceutical Co., Ltd.) 0.5 ・ Glycerin 2.0 * 1,3-butylene glycol 10.0 ・ EDTA 0.1 ・ Potential amount of potassium hydroxide ・ Dye / fragrance ・ Water balance

A face wash (pH 8.
When 8) was prepared and the feeling in use, the feeling in finishing, and the stability at low temperature were evaluated, all the properties were excellent and good results were obtained.

[0044]

As described above, according to the present invention, the cleansing, foaming, foaming quality, rinsing property, finished feeling, low temperature stability is excellent, and the sticky feeling does not occur even after continuous use for a long time. An agent composition can be provided.

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) C11D 1/12 C11D 1/12 3/37 3/37 F term (reference) 4C083 AA112 AB032 AC122 AC182 AC241 AC242 AC392 AC532 AC542 AC562 AC662 AC712 AC782 AD131 AD132 AD152 AD202 AD262 AD352 AD452 BB05 BB34 BB35 CC23 DD23 DD31 EE01 EE12 4H003 AB03 AB27 AB31 AB44 AB46 AD04 DA02 EB30 EB41 ED02 FA16 FA18 FA21 FA23

Claims (6)

[Claims] 1. A skin cleansing composition containing the following (A) to (D). (A) Higher fatty acid salt (B) Sulfate group-containing anionic surfactant (C) Amphoteric polymer (D) Cationic polymer 2. The (A) higher fatty acid salt has 13 carbon atoms.
The total mass of the following fatty acid salts is less than the total mass of the fatty acid salts having 14 or more carbon atoms and is selected from the group consisting of myristate, palmitate and stearate.
The skin cleansing composition according to claim 1, which contains 15 to 50% by mass of the total amount of one kind or two kinds or more and laurate of the cleansing composition. 3. The skin cleansing composition according to claim 1, which contains an acrylamide / acrylic acid / dimethyldiallylammonium chloride copolymer as the amphoteric polymer (C). 4. The skin cleansing composition according to claim 1, which comprises (D) a cationic polymer containing a dimethyldiallylammonium chloride / acrylamide copolymer. 5. The skin cleansing composition according to claim 1, further comprising (E) an amphoteric surfactant and / or a semipolar surfactant. 6. The skin cleansing composition according to claim 1, which is substantially free of higher fatty acid diethanolamide.