JPH07138593A - Cleaning composition - Google Patents

Abstract

(57) [Summary] [Constitution] An alkyl phosphate ester surfactant and an ether type acetic acid surfactant represented by the general formula (3) are contained, and the content of the alkyl phosphate ester surfactant is A detergent composition containing 30% by weight or more. R ⁴ -O- (CH ₂ CH ₂ O) _p -CH ₂ CO ₂ X ³ (3) (R ⁴ is an alkyl group or an alkenyl group having 8 to 18 carbon atoms, X ³ is a hydrogen atom, an alkali metal, trialkyl (Ethanolamine or ammonium, p is a number from 3 to 15) [Effect] It has excellent detergency for skin and hair, is hypoallergenic, and increases the viscosity even when the phosphate ester salt has a high concentration of 30% by weight or more. It is a detergent composition in which the third component is easy to be blended.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention has an excellent detergency and does not cause an increase in viscosity or gelation even when a phosphoric acid ester-based surfactant is contained in a high concentration, and has an irritating property to skin and hair. The present invention relates to a cleansing composition useful as a skin cleansing agent such as a low face cleansing agent, a shampoo, a body shampoo or a hair cleansing agent.

[0002]

2. Description of the Related Art Phosphate ester type surfactants are soaps,
Compared to alkyl ether sulphate and alkyl sulphate, it has less irritation to the skin and hair and is widely applied as a component of body wash (Japanese Patent Publication No. 55-903).
3 gazette, Japanese Patent Publication No. 57-47959 gazette, etc.). Further, due to its characteristics, it is applied to a wide range of other anionic surfactants and mixed systems with nonionic surfactants (JP-B-59-18440 and JP-B-58-101197).
JP-A-61-272296, etc.).

By the way, when preparing a detergent for hair shampoo, body shampoo, etc., a concentrated surfactant solution is usually prepared, and then a moisturizer, an oily component, a rinse component, powder and other components and water are added. Means for adding a desired concentration is adopted. However, when the phosphate ester-based surfactant is neutralized with a triethanolamine salt or an alkali metal salt, a rapid increase in viscosity or gelation occurs at a concentration of 30% by weight or more as a phosphate ester salt, making handling difficult. Therefore, conventionally, in the case of neutralizing a high-concentration phosphoric acid ester-based surfactant, there has been no method except to reduce the viscosity by adding a large amount of a solvent or to neutralize at a low concentration. Addition of a large amount of solvent or the like causes deterioration in performance as a detergent in foamability and feel, while neutralization of the phosphoric acid ester at a low concentration, when the neutralized product is blended in the final formulation,
Since it naturally contains a large amount of water, there is a problem that the amount of the third component to be blended is limited.

[0004]

Therefore, according to the present invention, while maintaining the cleansing properties and low irritation to the skin, which are the characteristics of the phosphoric acid ester type surfactant, the phosphoric acid ester salt is used in an amount of 30% by weight or more. It is an object of the present invention to provide a detergent composition that does not cause an increase in viscosity even when the concentration is increased.

[0005]

Means for Solving the Problems The inventors of the present invention have made extensive studies in such circumstances, and as a result, by using an alkyl phosphate ester surfactant in combination with a specific ether type acetic acid surfactant, The present invention has been completed by finding that a detergent composition satisfying the requirements can be obtained.

That is, the present invention provides the following components (A) and (B) (A) a phosphoric acid ester-based surfactant represented by the general formula (1) or a phosphoric acid ester-based surfactant represented by the general formula (2). A mixture with a surfactant, the content weight ratio of which is (1) / (2) = 100/0 to 70/30

[0007]

[Chemical 3]

(Wherein R ¹ , R ² and R ³ each represent a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, X ¹ , X ² and Y each represent a hydrogen atom,
Indicates an alkali metal, triethanolamine or ammonium. (B) Ether-type acetic acid-based surfactant represented by the general formula (3)

[0009]

Embedded image R ⁴ —O— (CH ₂ CH ₂ O) _p —CH ₂ CO ₂ X ³ (3)

(In the formula, R ⁴ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, X ³ represents a hydrogen atom, an alkali metal, triethanolamine or ammonium, and p is 3 No. to 15) and the content of the component (A) is 30% by weight or more.

The present invention also relates to a method for preventing viscosity increase of a solution containing 30% by weight or more of the component (A), which is characterized by adding the component (B).

The phosphoric acid ester type surfactant used as the component (A) in the present invention is represented by the general formulas (1) and (2)
10 to 16 carbon atoms as R ¹ , R ² and R ³ in
Particularly, those having an alkyl group having 12 to 14 carbon atoms are preferable, and those in which X ¹ , X ² and Y are potassium, particularly potassium in view of solubility in water, are preferable.

The content of the monoalkyl phosphate ester (1) in the component (A) must be 70% by weight or more, preferably 80% by weight or more. When the amount of the monoalkyl phosphate ester (1) is less than 70% by weight, the foaming property and detergency are poor, which is not preferable.

As the ether acetic acid type surfactant (3) which is the component (B) used in the present invention, R ⁴ in the general formula (3) having 10 to 16 carbon atoms, particularly 12 to 14 carbon atoms is preferable. preferable. Further, p in the general formula (3) is 3 to 15
It is necessary to be 8 and 12 are preferable. p is 1
When it exceeds 5, the foaming power is inferior, and when it is less than 3, it is impossible to prevent the viscosity increase at a high concentration of the component (A).

Specific examples of the ether acetic acid surfactant (3) include polyoxyethylene (10) lauryl ether acetic acid and polyoxyethylene (8) myristyl ether acetic acid. The degree of neutralization is 60-120%
Is preferred, and as the counter ion X ³ , an alkali metal, particularly potassium is preferred.

The mixing ratio of the component (A) and the component (B) in the detergent composition of the present invention is (A) / (B) = 75 / by weight.
It is preferably from 25 to 98/2, and particularly (A) /
(B) = 85/15 to 95/5 is preferable. (A) /
When (B) is less than 75/25, it is not preferable in terms of foaming power and detergency, and when (A) / (B) exceeds 98/2, the component (A) is contained in a solution at a high concentration of 30% by weight or more. It becomes difficult to blend in.

The detergent composition of the present invention is prepared by adding component (A) at a concentration of 3
In order to obtain a solution with a high concentration of 5% by weight or more, it is preferable to further add a polyhydric alcohol. As the polyhydric alcohol, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol,
Examples thereof include lower polyhydric alcohols such as glycerin, diglycerin and triglycerin, among which propylene glycol, ethylene glycol and glycerin are preferable. Further, the blending amount is such that the weight ratio of the total content of the component (A) and the component (B) and the content of the polyhydric alcohol is [(A)
+ (B)] / polyhydric alcohol = 80/20 to 99/1,
Further 85/15 to 98/2, especially 90/108 to 96 /
A range of 4 is preferable. If this ratio is less than 80/20, the concentration of the component (A) solution can be increased, but the foamability and detergency are poor, and if it exceeds 99/1, the component (A) is 35% by weight.
The above high-concentration solution cannot be prepared.

The detergent composition of the present invention contains 30% by weight or more (preferably 30 to 60% by weight, more preferably 30 to 50% by weight, particularly preferably 35 to 50% by weight of the component (A) in the entire composition. %), Even when blended, the viscosity does not increase and gelation does not occur, and good fluidity is exhibited at room temperature (25 ° C.). In addition, this viscosity, using a B-type viscometer,
At a measurement temperature of 30 ° C., 10,000 to 50 cps, preferably 8,000 to 50 cps, more preferably 5,000 to 50 cps
Maintained at. At this time, the measurement condition is to select the rotor and rotation speed of the following B-type viscometer as the average value according to the measured viscosity.

[0019]

[Table 1]

The cleansing composition of the present invention is useful as a skin cleansing agent such as a facial cleanser, a hair shampoo, a body shampoo and a hair cleansing agent. These cleansing products are usually the components (A) and (B). ) And optionally a polyhydric alcohol (A) is added to the detergent composition of the present invention containing a concentration of 30% by weight or more to obtain an optional component according to various uses. Here, examples of the optional components include other anionic surfactants, nonionic surfactants, amphoteric surfactants, cationic surfactants, conditioning components and the like which are usually blended with these detergents.

Other anionic surfactants include fatty acid salts, alkyl sulfates, polyoxyalkylene alkyl ether sulfates, sulfosuccinic acid-based active agents, sulfosuccinamate-based active agents, polyoxyalkylene alkyl amide ether sulfates, Monoglyceride sulfates, olefin sulfonates, alkane sulfonates, acylated isethionates, acylated amino acid salts, polyoxyalkylene alkyl ether phosphates and the like; as nonionic surfactants, alkyl polyglucosides, Examples thereof include sucrose fatty acid ester, polyglycerin fatty acid ester, polyoxyalkylene alkyl ether, fatty acid alkanolamide, alkylamine oxide, and fatty acid polyhydric alcohol ester. Examples of cationic surfactants include linear or branched long-chain mono- or di-chain alkyl quaternary ammonium salts, mono- or di-long chain alkyl tertiary amines, and the like; amphoteric surfactants include amide amino acids. Examples thereof include system activators, carbobetaine activators, sulfobetaine activators, amidosulfobetaine activators, imidazolinium betaine activators, amino acid betaine activators, and phosphobetaine activators.

The conditioning components include higher alcohols, silicones and silicone derivatives, lanolin, squalene, hydrocarbons, protein derivatives, oil agents such as fatty acid esters of polyethylene glycol, cationized cellulose, cationized guar gum and Mercoat 550 (manufactured by Merck). And other cationic polymers. Other components usually used in detergent compositions, for example, water-soluble polymers such as methyl cellulose, hydroxyethyl cellulose, carboxyvinyl polymer, polysaccharides such as xanthan gum; polyoxyalkylene sorbitan ester,
Viscosity modifiers such as polyoxyethylene glycol distearate and ethanol; ethylenediaminetetraacetic acid (EDT
A), chelating agents such as phosphonates; preservatives such as methylparaben and butylparaben; active ingredients such as vitamins and their precursors; animal and plant extracts such as lecithin and gelatin or derivatives thereof; polymer fine powders such as nylon and polyethylene. Anti-inflammatory agents such as dipotassium glycyrrhizinate; bactericidal agents and anti-dandruff agents such as triclosan, trichlorocarban, octopirox, zinc pyrithione; antioxidants such as dibutylhydroxytoluene; pearling agents, UV absorbers, pH adjusters, pigments , Fragrance, and water may be added as needed within the range not impairing the effects of the present invention.

As described above, in the detergent composition of the present invention, the component (A) and the component (B) are essential components, and the component (A) is 3 parts.
Not only a low-viscosity solution containing 0% by weight or more, but also a composition containing 30% by weight or more of the component (A) in the entire composition, in which the above-mentioned various optional components are further mixed in the solution. The former is usually used as a base for producing a detergent, and the latter is used as a final product of various detergents. Further, in the present invention, it is preferable that each of them is a liquid such as an emulsion, a solution or a dispersion.

[0024]

EXAMPLES The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto.

Example 1 A detergent composition having the composition shown in Tables 2 and 3 was prepared according to a conventional method, and the viscosity, the amount of foaming and the washing rate were measured by the following methods, and the sensory evaluation of the feeling during washing was conducted. I went. In addition, all the measurements and evaluations were performed at a solution pH of 7. The results are shown in Tables 2 and 3.

<Viscosity> Using a B-type viscometer, measuring temperature 30
The measurement was carried out at a temperature of the product of the present invention itself and a solution diluted with a 35% aqueous solution of a phosphate ester salt activator. <Foaming amount> Each cleaning composition and lanolin are dissolved in water,
100 ml of an aqueous solution having a total active agent concentration of 1% by weight and a lanolin concentration of 0.5% by weight was prepared, and the temperature was adjusted to 40 ° C. This was stirred for 5 minutes by the inversion stirring method, and the amount of bubbles was measured after 30 seconds. <Washing ratio> 0.4 ml of a chloroform solution containing 7% by weight of lanolin and 0.005% by weight of Sudan III (manufactured by Wako Pure Chemical Industries, Ltd.) was uniformly applied to a 5 × 5 cm wool muslin cloth and dried to prepare a contaminated cloth. . 2% by weight of this contaminated cloth was used as a cleaning agent aqueous solution 4
After washing with 0 ml by stirring at 40 ° C. for 10 minutes, it was rinsed well in running water, dried and the reflectance was measured to obtain the washing rate according to the following formula. It evaluated according to the following criteria.

[0027]

[Equation 1]

⊚: Washing rate of 85% or more ◯: Washing rate of 70% or more and less than 85% △: Washing rate of 60% or more and less than 70% ×: Washing rate of less than 60% <Feeling during washing> Feeling of hands during washing , Specialized panel 1
It was evaluated by 0 persons according to the following criteria. ○: Good touch △: Somewhat poor touch ×: Poor touch

[0029]

[Table 2]

[0030]

[Table 3]

Using the products of the present invention shown in Tables 2 and 3, the following body shampoos, facial cleansers and shampoos of Formulation Examples 1 to 7 were prepared. The pH was adjusted with citric acid and an aqueous solution of NaOH. All of them are hypoallergenic and have excellent detergency and feel of hair and skin after washing.

[0032]

[Table 4] Prescription example 1 (body shampoo, pH 7.7) (wt%) Inventive product 5 30.0 2. Lauryl hydroxysulfobetaine 5.0 3. 3. N-lauroyl-N'-carboxymethyl-N '-(2-hydroxyethyl) ethylenediamine Na 3.0 4. Coconut oil fatty acid diethanolamide 5.0 5. Polyoxyethylene sorbitan diisostearate (EO 140) 0.5 6. Paraben 0.2 7. Dibutylhydroxytoluene 0.2 8. Dye trace amount 9. Fragrance 0.3 10. Purified water balance

[0033]

[Table 5] Formulation example 2 (deodorant body shampoo, pH 7.2) (% by weight) Inventive product 5 30.0 2. Polyoxyethylene lauryl ether phosphate Na salt (EO 2) 4.0 3. Lauroyl glutamate Na 3.0 4. Coconut oil fatty acid monoethanolamide 2.0 5. Zinc stearate 1.0 6. Ethylene glycol distearate 1.0 7. Triclosan 0.3 8. Paraben 0.2 9. Trace amount of dye 10. Fragrance 0.3 11. Purified water balance

[0034]

[Table 6] Formulation example 3 (body shampoo, pH 6.7) (wt%) Invention product 6 32.0 2. Lauryl polyglycoside 3.0 3. Polyoxyethylene lauryl ether sulfosuccinate diNa (EO.3) 2.0 4. Lauryl dimethylamino acetic acid betaine 2.0 5. Cationized cellulose (polymer LR30M; UCC) 0.2 6. Paraben 0.2 7. Dye trace amount 8. Fragrance 0.3 9. Purified water balance

[0035]

Table 7 Formulation Example 4 (Anti-dandruff shampoo, pH 7.4) (wt%) 1. Inventive product 6 10.0 2. Olefin sulfonic acid Na salt (R = C _{12 to} C ₁₆ ) 7.0 3. Polyoxyethylene coconut oil fatty acid monoethanolamide sodium sulfate (EO 2) 5.0 4. Lauryl dimethylamine oxide 3.0 5. Polyether-modified silicone (KF352 (A); manufactured by Shin-Etsu Chemical Co., Ltd.) 0.4 6. Stearyl trimethyl ammonium chloride 0.1 7. Hydroxyethyl cellulose 0.3 8. Octopirox 0.3 9. EDTA 0.2 10. Paraben 0.2 11. Trace amount of dye 12. Perfume 0.1 13. Purified water balance

[0036]

[Table 8] Prescription example 5 (scrub body shampoo, pH 7.8) (wt%) Invention product 6 32.0 2. Lauric acid K 7.0 3. Coconut oil fatty acid amidopropyl betaine 3.0 4. Glycerin 3.0 5. Nylon powder 0.1 6. Carboxy vinyl polymer (Carbopol 941; manufactured by Goodrich Co.) 0.2 7. Dye trace amount 8. Fragrance 0.3 9. Purified water balance

[0037]

[Table 9] Formulation example 6 (facial cleanser, pH 7.4) (wt%) Invention product 9 40.0 2. Triethanolamine laurate 3.0 3.0. Lauroyl methyl taurine sodium 2.0 4. Polyethylene glycol 60000 4.0 5. Lauroyl sarcosinate 6.0 6. Sodium chloride 10.0 7. Paraben 0.2 8. Dye trace amount 9. Fragrance 0.3 10. Purified water balance

[0038]

EFFECTS OF THE INVENTION The cleaning composition of the present invention has excellent detergency for skin and hair, is low in irritation, and has a low viscosity even at a phosphate ester salt concentration of 30% by weight or more. A detergent composition that is easy to mix.

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Claims (7)

[Claims] 1. The following component (A) and component (B); (A) Phosphate ester-based surfactant represented by the general formula (1) or a phosphate ester-based interface represented by the general formula (2). A mixture with an activator, the content weight ratio of which is (1) / (2) = 100/0 to 70/30. (In the formula, R ¹ , R ² and R ³ each have 8 to 18 carbon atoms.
Is a linear or branched alkyl group or alkenyl group, and X ¹ , X ² and Y each represent a hydrogen atom, an alkali metal, triethanolamine or ammonium. (B) An ether type acetic acid surfactant represented by the general formula (3): embedded image R ⁴ —O— (CH ₂ CH ₂ O) _p —CH ₂ CO ₂ X ³ (3) (wherein , R ⁴ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, X ³ represents a hydrogen atom, an alkali metal, triethanolamine or ammonium, and p represents a number of 3 to 15. .) And component (A)
A cleaning composition having a content of 30% by weight or more. 2. The cleaning composition according to claim 1, wherein the weight ratio of the contents of the component (A) and the component (B) is (A) / (B) = 75/25 to 98/2. 3. A polyhydric alcohol is further contained.
Or the cleaning composition according to 2. 4. The weight ratio of the total content of the component (A) and the component (B) to the content of the polyhydric alcohol is [(A) +
(B)] / polyhydric alcohol = 80 / 20-99 / 1 The cleaning composition according to claim 3. 5. The weight ratio of the total content of the component (A) and the component (B) to the content of the polyhydric alcohol is [(A) +
(B)] / polyhydric alcohol = 90/10 to 99/1, The cleaning composition according to claim 3. 6. X ¹ and X in the general formulas (1) to (3)
The cleaning composition according to claim 1, wherein ² , Y and X ³ are alkali metals. 7. A method for preventing an increase in viscosity of a solution containing 30% by weight or more of the component (A), which comprises adding the component (B) according to claim 1.