JPH0789846A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition containing a phosphoric acid ester and a glycerin monofatty acid ester and having low irritation to skin and rich foaming and smooth feeling. CONSTITUTION:This detergent composition contains 5-80wt.% of a phosphoric acid ester of the formula (R<1> is a 8-15C hydrocarbon; X<1> and X<2> are H, alkali metals, ammonium, basic amino acid or alkanolamine having 2-3C hydroxyalkyl) and 0.1-20wt.% of a glycerin monofatty acid ester. Formability and feeling of foam are made better by further adding a 8-22C fatty acid salt thereto. Since the detergent provides rich foaming in cleansing and smooth feeling after drying while keeping low irritation to skin or hair, the agent is extremely useful as a facial detergent, shampoo, body shampoo, detergent, etc., for kitchen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, and more particularly to a detergent composition which is mild to the skin, gives a rich lather and gives a smooth feel.

[0002]

2. Description of the Related Art Phosphate ester-based surfactants, which are a type of anionic surfactant, are extremely mild surfactants with low irritation to skin and hair. Widespread use in various cleaning agents is expected.

However, since the phosphoric acid ester surfactant generally has a low foaming property, it is greatly inferior in sensory evaluation and is difficult to use as a detergent component.

Therefore, there has been a demand for the development of a detergent composition which gives rich foaming while maintaining a low irritation to the skin and hair and which gives a smooth feel after drying.

[0005]

Means for Solving the Problems The inventors of the present invention have made earnest studies in view of such circumstances, and as a result, a cleaning agent containing a phosphoric acid ester and a glycerin monofatty acid ester has a rich foaming effect during cleaning and a smooth feel after drying. The present invention has been completed and the present invention has been completed, and it was found that it does not impair the hypoallergenicity to the skin and hair.

That is, the present invention provides the following components (A) and (B); (A) the following general formula (1)

[0007]

[Chemical 2]

(In the formula, R ¹ represents a linear or branched hydrocarbon group having 8 to 15 carbon atoms, and X ¹ and X ² are each a hydrogen atom, an alkali metal, ammonium, a basic amino acid or a carbon atom having 2 carbon atoms. To alkanolamine having a hydroxyalkyl group of 3 to 3), and one or more kinds selected from phosphoric acid esters and salts thereof, and (B) glycerin monofatty acid ester. It is to provide things.

The phosphoric acid ester of the component (A) and its salt used in the present invention are represented by the above formula (1).
Examples of the linear hydrocarbon group having 8 to 15 carbon atoms represented by R ¹ in the formula (1) include a linear alkyl group or alkenyl group having 8 to 15 carbon atoms, such as an octyl group, a nonyl group, A linear alkyl group such as a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group and a pentadecyl group is preferable. Further, as the branched chain hydrocarbon group having 8 to 15 carbon atoms, R ² —CH (CH ₃ ) CH ₂ — (R ² has 5 to 5 carbon atoms
The group represented by 12 is a linear hydrocarbon group of 12) is preferable. Examples of the linear hydrocarbon group having 5 to 12 carbon atoms represented by R ² include linear alkyl groups or alkenyl groups having 5 to 12 carbon atoms, such as pentyl group, hexyl group,
Straight-chain alkyl groups such as heptyl group, octyl group, nonyl group, decyl group, undecyl group and dodecyl group are preferred. In the present invention, in addition to these methyl-branched alkyl phosphates, ethyl-branched, propyl-branched, butyl-branched or pentyl-branched alkyl phosphates may be mixed. Of X ¹ and X ² , the alkali metal is, for example, lithium, sodium, potassium or the like; the basic amino acid is, for example, arginine, lysine, histidine, ornithine or the like; the alkanolamine is, for example, triethanolamine. , Diethanolamine, monoethanolamine and the like.

The content of the component (A) in the detergent composition of the present invention is preferably 5 to 80% by weight (hereinafter simply referred to as "%"), particularly 10 to 50% from the viewpoint of formulation. The component (A) may be used alone or in combination of two or more.

The glycerin monofatty acid ester of component (B) used in the present invention has a carbon chain of 8 to 22 carbon atoms.
It is preferably a linear or branched alkyl group, alkenyl group or alkylphenyl group. Preferred specific examples include lauric acid glyceride, myristic acid glyceride, palmitic acid glyceride, stearic acid glyceride, behenic acid glyceride, oleic acid glyceride, isostearic acid glyceride, coconut oil fatty acid glyceride, hardened tallow oil fatty acid glyceride and the like.

The content of the component (B) in the detergent composition of the present invention is 0.1 to 20%, particularly 1 to 10%, in order to obtain a composition which has a good foaming property and gives a smooth feel. preferable. The component (B) may be used alone or in combination of two or more.

In the detergent composition of the present invention, by adding a higher fatty acid salt having 8 to 22 carbon atoms (component (C)) in addition to the components (A) and (B), foaming property and foaming property are obtained. It is possible to obtain a detergent composition having a better feeling.

Specific examples of the component (C) include lauric acid, myristic acid, palmitic acid, isostearic acid,
In addition to single fatty acids such as oleic acid, inorganic basic salts such as sodium and potassium of mixed fatty acids such as coconut oil fatty acids and beef fatty acids, ammonium salts, monoethanolamine salts,
Diethanolamine salt, triethanolamine salt, 2-
In addition to alkanolamine salts such as amino-2-methylpropanol and 2-amino-2-methylpropanediol,
Examples include basic amino acids such as lysine and arginine.

Component (C) does not necessarily have to be incorporated as a fatty acid salt in the detergent composition of the present invention, and the higher fatty acid and the base may be added separately to form a fatty acid salt in the composition. Good.

The blending amount of the component (C) in the detergent composition of the present invention varies depending on the blending amounts of the components (A) and (B).
When the weight ratio of the component (C) to the sum of the component (A) and the component (B) is 1/20 to 1/1, particularly 1/10 to 1/2 improves the foaming property, and yet has low irritation. It is preferable because it does not damage. The component (C) may be used alone or in combination of two or more.

The detergent composition of the present invention contains, in addition to the above-mentioned components, other surfactants such as alkyl sulfates and alkyl sulfonates as long as the effects of the present invention are not impaired.
Polyoxyethylene alkyl sulfate, alkylbenzene sulfonate, N-acyl sarcosine salt, N-acyl-
Anionic surfactants such as N-methyl taurine salt, alpha olefisosulfonate, higher fatty acid ester sulfonate, alkyl ether acetate, polyoxyethylene alkyl ether acetate, fatty acid soap, fatty acid amide, polyoxyethylene Nonionic surfactants such as alkyl ethers, sugar ester-based, sugar ether-based and sugar amide-based surfactants, and amphoteric surfactants such as imidazoline-based and betaine-based surfactants can be added.

Further, as other additives, the components usually used in detergents can be optionally used in combination within a range not impairing the object of the present invention. For example, propylene glycol, sorbitol, humectants such as glycerin, carboxyvinyl polymer, methyl cellulose, ethanol,
Viscosity modifiers such as polyoxyethylene glycol distearate and polyoxyethylene sorbitan tristearate, pearling agents, perfumes, dyes, ultraviolet absorbers, antioxidants and the like can also be added.

The detergent composition of the present invention can be prepared by uniformly stirring and mixing the components according to a conventional method. Moreover, a paste-like, emulsion-like, liquid-like composition or the like can be obtained depending on the blending amount and blending ratio of each component.

[0020]

EFFECT OF THE INVENTION The cleaning composition of the present invention provides a rich lather during washing and a smooth feel after drying while maintaining low irritation to skin and hair.
It is extremely useful as a shampoo, body shampoo, kitchen cleaner, etc.

[0021]

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

Example 1 A cleaning composition having the composition shown in Table 1 and Table 2 below was prepared, and the foaming amount of each of these cleaning compositions was measured by the following method (measurement method of foaming amount). The following criteria evaluated. In addition, the feeling of use was evaluated based on the following (evaluation method and evaluation criteria for feeling of use). The results are shown in Tables 1 and 2 below. Incidentally, No. The detergent compositions 11 to 14 are comparative products.

(Measuring Method of Amount of Foaming) A 20-fold diluted aqueous solution was prepared for each detergent composition, and 100 ml of this solution was prepared.
(Liquid temperature 40 ° C.) was poured into a graduated graduated cylinder. Next, a stirring blade was placed in the above solution, and the volume (ml) of the foam generated 30 seconds after the start of stirring was measured.
It was defined as the amount of foaming. The rotation speed of the stirring blade is 1000 rpm
And was reversed every 5 seconds. (Evaluation Criteria) A: A foaming amount of 250 ml or more. ◯: Foaming amount of 200 ml or more and less than 250 ml. X: Foaming less than 200 ml.

(Evaluation Method of Use Feeling and Evaluation Criteria) With respect to each detergent composition, 10 panelists each of men and women washed their bodies, and sensory evaluation was performed. For the evaluation, an average value was calculated according to the following criteria. When the average value was 4.5 or more, it was very good (⊚), when 3.5 to 4.4, it was good (∘), and 2.5 to 3 Usually, the case of 0.4 (△), 2.4
The following cases were judged to be defective (x). (1) Defoaming during rinsing 5: Good defoaming. 4: Foam is slightly broken. 3: Normal. 2: Foam is a little bad. 1: Poor out of foam. (2) Feeling of sliminess after rinsing 5: No slimy feeling. 4: Slightly slimy. 3: Normal. 2: Slightly slimy. 1: Slimy. (3) Bulkiness after drying 5: No bulkiness. 4: Somewhat not touching. 3: Normal. 2: Slightly dry. 1: Bulky. (4) Smoothness after drying 5: Smooth. 4: Slightly smooth. 3: Normal. 2: Somewhat not smooth. 1: Not smooth.

[0025]

[Table 1]

A) Diadol 115L (manufactured by Mitsubishi Kasei Co., Ltd.) R ¹ in the formula (1) is C ₁₁ : C ₁₃ : C ₁₅ = 47: 31:
22 (weight ratio). Linear: branched = 47:53. Breakdown of branched alkyl phosphate ester is methyl branched 63
%, Ethyl branch 17%, propyl branch 9%, butyl branch 8%, pentyl branch 3%. b) Dobanol 231 (manufactured by Mitsubishi Petrochemical Co., Ltd.) R ¹ in the formula (1) is C ₁₂ : C ₁₃ = 43: 57 (weight ratio). Linear: branched = 1: 9. Breakdown of branched alkyl phosphate ester is methyl branch 40
%, Ethyl branch 16%, propyl branch 15%, butyl branch 19%, pentyl branch 10%.

[0027]

[Table 2]

Example 2 A face wash having the following composition was prepared according to a conventional method.

[0029]

[Table 3] (Composition) (%) Monolauryl phosphate triethanolamine 27 Monostearate glycerin 3 Laurate triethanolamine 4 Myristate triethanolamine 2 Dibutylhydroxytoluene 0.1 Perfume 0.5 Ethanol 3 Purified water balance 100 in total

Example 3 A body shampoo having the following composition was prepared by a conventional method.

[0031]

[Table 4] (Composition) (%) Phosphoric ester potassium ^a) 20 Glycerin monobehenate 3 Glycerin 5 Potassium laurate 2 Potassium myristate 2 Ethylene glycol distearate 2 Cationized cellulose 0.5 Dibutylhydroxytoluene 0.1 Perfume 0 .5 Methyl paraoxybenzoate 0.2 Purified water Balance meter 100

When the body was washed with the detergent compositions obtained in Examples 2 and 3 above, all of the detergents were hypoallergenic to the skin and had good foaming and defoaming. There was no slimy feeling, and the skin did not feel dry after drying, and a smooth and excellent usability was obtained.

Claims (1)

[Claims] 1. The following components (A) and (B); (A) the following general formula (1): (In the formula, R ¹ represents a linear or branched hydrocarbon group having 8 to 15 carbon atoms, and X ¹ and X ² are each a hydrogen atom, an alkali metal, ammonium, a basic amino acid, or a carbon atom having 2 carbon atoms.
To alkanolamine having a hydroxyalkyl group of 3 to 3), and one or more kinds selected from phosphoric acid esters and salts thereof, and (B) glycerin monofatty acid ester. object.