JP2002088400A - Liquid cleanser composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid cleanser composition which is suitably thick without using a conventional thickener, can well be bubbled, does not give a slippery touch, when rinsed, does not leave a sticky touch on skin after used, and gives a good touch. SOLUTION: The composition is used as a cosmetic for hair and is characterized by containing a higher fatty acid salt, an amphoteric surfactant and an inorganic salt as essential components.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid detergent composition, which has a good foaming property, has no slimy feeling upon rinsing, and has a good feeling of use without stickiness to the skin after use. It is to provide a cleaning composition.

[0002]

2. Description of the Related Art Conventionally, anionic surfactants such as fatty acid salts, alkyl sulfates, alkyl ether sulfates and α-olefin sulfonates have been used as foaming detergents in liquid detergents. In Japan, it is common to use a fatty acid salt or a combination of a fatty acid salt and another surfactant in view of problems such as easy rinsing. In addition, liquid detergents are often put on the market in a thickened form from the feeling of use and usability, and a thickener is further added for thickening. As a thickener for thickening the liquid detergent, a nonionic surfactant such as fatty acid alkylolamide or a natural or synthetic polymer thickener is generally blended. However, in liquid detergents, especially body shampoos, it is necessary to clean a large area as compared with hair shampoos, and at the same time, there is a need to enjoy foaming during use. However, if a nonionic surfactant such as fatty acid alkylolamide is blended with the liquid detergent, the foaming property at the time of use is not sufficient, and a slimy feeling remains. Further, when a polymer thickener is blended, a sticky feeling and a slimy feeling peculiar to the polymer remain after use, and at present, sufficient satisfaction is not obtained.

[0003] In this respect, Japanese Patent Application Laid-Open No. 61-7399 discloses an attempt to improve the foaming property by adding a cationic polymer. Also, JP-A-2-142
Japanese Patent Publication No. 900 improves foaming properties by adding a cationic polymer and polyethylene glycol,
Improving smoothness after cleaning. However, even with the addition of these polymers, there is a drawback that a slimy feeling remains upon rinsing after washing, and a refreshing feeling after washing cannot be sufficiently obtained.

[0004]

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a liquid detergent that is appropriately thickened without using a conventional thickener, has good foaming, and is effective in rinsing. It is an object of the present invention to provide a liquid detergent composition which has no slimy feeling and does not leave sticky feeling on skin even after use and has a good feeling in use.

[0005]

The invention according to claim 1 is
The present invention relates to a liquid detergent composition comprising a higher fatty acid salt, an amphoteric surfactant and an inorganic salt as essential components. The invention according to claim 2 relates to the liquid detergent composition according to claim 1, wherein the amphoteric surfactant is a betaine aminoacetate type surfactant. The invention according to claim 3 relates to the liquid detergent composition according to claim 1 or 2, wherein the inorganic salt is potassium chloride or sodium chloride. The invention according to claim 4 is
2. A polyhydric alcohol is contained.
4. A liquid detergent composition according to any one of items 1 to 3.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The liquid detergent composition according to the present invention contains higher fatty acid salts, amphoteric surfactants and inorganic salts as essential components. In the present invention, the reason that the three components are essential components can be appropriately thickened only by changing the compounding amount of the three components, and foaming is good, there is no slimy feeling during rinsing, even during use. This is because a liquid detergent composition having a good feeling of use without leaving sticky feeling on the skin can be obtained.

The liquid detergent composition according to the present invention contains a higher fatty acid salt as a first essential component. The higher fatty acid that can be used in the present invention is not particularly limited as long as it is generally blended in cosmetics. Specifically, oleic acid, lauric acid, myristic acid, palmitic acid,
Stearic acid, arachiic acid, behenic acid and the like can be exemplified. In the present invention, one or more of the higher fatty acids having 12 to 22 carbon atoms can be desirably used. In the present invention, carbon number 12
The reason why the higher fatty acids No. to No. 22 are desirably used is that they have no irritating property to the skin, are excellent in hue, and have no deterioration with time such as odor and rancidity.

The salt of the higher fatty acid salt is not particularly limited, and one or more of the higher fatty acid salts obtained by neutralizing the higher fatty acid with an alkali such as sodium hydroxide, potassium hydroxide or triethanolamine are used. The salt obtained by the above-mentioned neutralization may have 12 to 22 carbon atoms.
The higher fatty acid salt of can be more desirably used. Alternatively, higher fatty acids obtained by saponifying animal oils such as fish oil and tallow, or vegetable oils such as coconut oil, palm oil, palm kernel oil, laurel oil, peanut oil, soybean oil, olive oil, and cottonseed oil with the above alkali. One or two or more salts may be used. Particularly, the salt obtained by the above-mentioned saponification has 12 to 12 carbon atoms.
A higher fatty acid salt of 22 can be more desirably used.
The reason why these higher fatty acid salts having 12 to 22 carbon atoms are desirably used is the same as the reason why the higher fatty acids having 12 to 22 carbon atoms are used. As the alkali, it is more preferable to use sodium hydroxide or potassium hydroxide, particularly from the viewpoint of easy availability of materials and easy handling.

When the higher fatty acid salt is blended into the liquid detergent composition of the present invention, the higher fatty acid salt may be blended after preparing the higher fatty acid salt from the higher fatty acid and the alkali, or may be used as the higher fatty acid salt in the composition.

The amount of the higher fatty acid salt in the whole liquid detergent as the higher fatty acid is not particularly limited, but may be 5.0 to 5.0.
Preferably, the content is 30.0% by weight.
More preferably, the content is 0.0% by weight. The reason for this is
If the amount is less than 5.0% by weight, the foaming and cleaning effects cannot be sufficiently satisfied. Conversely, even if the amount exceeds 30.0% by weight, the foaming and cleaning effects are greatly improved. This is because, in addition to the above, there is a problem that higher fatty acid salts are precipitated.

The liquid detergent composition according to the present invention contains an amphoteric surfactant as a second essential component. The amphoteric surfactant that can be used in the present invention is not particularly limited as long as it can be blended in cosmetics. Surfactants, betaine-type amphoteric surfactants, sulfobetaine-type amphoteric surfactants, imidazolinium-type amphoteric surfactants, and the like can be used. Specifically, coconut oil alkyl betaine, stearyl dimethyl acetate betaine, coconut oil fatty acid amide propyl betaine, palm oil fatty acid amide propyl betaine, lauric acid amide propyl acetate betaine, ricinoleic acid amide propyl betaine, stearyl dihydroxyethyl betaine, lauryl dimethyl One or two or more of betaine aminoacetate, laurylhydroxysulfobetaine, 2-alkyl-N-carboxy-N-hydroxyimidazolinium betaine can be used, and an aminoacetate betaine-type amphoteric interface such as lauryldimethylaminoacetate betaine can be used. Preferably, an activator is used. Amphoteric surfactants are more preferably used than cationic surfactants, anionic surfactants and the like because of their irritating properties, particularly less irritation to the eyes, and more preferably an aminoacetate betaine-type amphoteric surfactant. The reason is that it is good in thickening and foaming properties.

The amount of the amphoteric surfactant in the entire liquid detergent is not particularly limited, but is preferably 0.5 to 7.0% by weight, more preferably 1.0 to 4.0% by weight. Is more preferred. The reason is that if the amount is less than 0.5% by weight, the liquid detergent cannot be sufficiently thickened, whereas if it exceeds 7.0% by weight, a slimy feeling will be obtained when rinsing after washing. This is because there is a problem that remains in any case, which is not preferable.

The liquid detergent composition according to the present invention contains an inorganic salt as a third essential component. Examples of the inorganic salt for the present invention include sodium chloride, potassium chloride, lithium chloride, sodium bromide, potassium bromide, ammonium chloride, sodium nitrate, potassium nitrate, sodium sulfate, potassium sulfate, sodium carbonate, potassium carbonate, and phosphoric acid. One or two or more of sodium hydrogen, sodium dihydrogen phosphate and the like can be used, and it is particularly preferable to use sodium chloride and potassium chloride from the viewpoint of easy availability of materials and easy handling.

The amount of the inorganic salt in the entire liquid detergent is not particularly limited, but is preferably 2.0 to 10.0% by weight, more preferably 3.0 to 6.0% by weight. desirable. The reason is that if the amount is less than 2.0% by weight, the thickening effect is not sufficient, and if it is more than 10.0% by weight, the viscosity of the liquid detergent significantly increases. This is because there is a problem that higher fatty acid salts are precipitated while being observed, and in either case, it is not desirable.

The liquid detergent composition according to the present invention may optionally contain a polyhydric alcohol as a solubilizer for higher fatty acid salts. Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerin, diglycerin, and the like, and one kind or a combination of two or more kinds may be used. Particularly, ethylene glycol or propylene glycol is preferably used because the system is kept uniform.

The amount of the polyhydric alcohol is preferably 0.01 to 10.0% by weight in the liquid detergent composition.
The reason is that if the amount is less than 0.01% by weight, the effect of the addition cannot be obtained, and if the amount exceeds 10.0% by weight, the viscosity is remarkably reduced. It is.

In the liquid detergent composition according to the present invention, in addition to the above essential components, silicones, humectants, surfactants, glycyrrhizin, allantoin, triclosan, as long as the object of the present invention is not impaired. Drugs such as vitamins, extracts of animals and plants, pearling agents, coloring agents, scrubbing agents, antidandruff agents, various fragrances, preservatives, bactericides and the like may be added according to the purpose.

The liquid detergent according to the present invention is prepared according to a conventional method,
It can be obtained by mixing each of the above components and water.

The liquid detergent composition according to the present invention can be preferably used for shampoos, body shampoos, hand soaps, liquid facial cleansers and the like.

[0020]

The present invention will be described in detail below with reference to Examples, but the present invention is not limited to these Examples. As the betaine lauryl dimethylaminoacetate, Amphitol 20BS (30% aqueous solution, manufactured by Kao Corporation) was used. The unit of the compounding amount in the following table is% by weight. (Preparation of sample) According to the composition described in Tables 1 and 2 below,
Each sample of Examples 1 to 14 and Comparative Examples 1 to 4 was prepared.

(Test Example 1; Thickening Action by Inorganic Salt) Each sample obtained in Examples 1 to 4 and Comparative Example 1 was measured at 25 ° C. with a B-type viscometer, and the viscosity was increased by the inorganic salt. The effect was tested. Table 1 shows the results.

(Test Example 2; Evaluation of Liquid Detergent Composition) Each of the samples obtained in Examples 5 to 14 and Comparative Examples 2 to 4 was foamed by five expert panelists when used in the form of a body shampoo. , Slimy feeling, and sticky feeling of the skin after use were evaluated according to the following evaluation criteria, and the results are shown in Table 2. <Evaluation Criteria> A: Very good (4 or more out of 5 people are good) A: Good (3 out of 5 people are good) C: Normal (2 out of 5 people is good) X: Bad (5 out of 5 people) 1 person or less is good)

[0023]

[Table 1]

[0024]

[Table 2]

(Consideration) From Tables 1 and 2, it can be seen that when an inorganic salt is used, an appropriate viscosity can be obtained without using a thickener. Further, it can be seen that the liquid detergent composition according to the present invention has good foaming at the time of use, has no slimy feeling, and has no sticky feeling to the skin after use.

Hereinafter, formulation examples of the liquid detergent composition according to the present invention will be described. The unit of the compounding amount is% by weight.

[0027]

[Table 3]

[0028]

[Table 4]

[0029]

[Table 5]

[0030]

[Table 6]

[0031]

[Table 7]

[0032]

As described above in detail, the liquid detergent composition according to the present invention contains a higher fatty acid salt, an amphoteric surfactant and an inorganic salt, so that the liquid detergent composition can be used without using a thickener. It is possible to provide a liquid detergent composition which has an appropriate thickening property, has good foaming at the time of use, has no slimy feeling at the time of rinsing, and has a good feeling of use without sticky feeling even after use.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C11D 3/20 C11D 3/20 (72) Inventor Takahisa Igaki 5-12, 12-ken, Chuo-ku, Osaka-shi F term (reference) in Mandom Central Research Laboratory Co., Ltd.

Claims (4)

[Claims] 1. A liquid detergent composition comprising a higher fatty acid salt, an amphoteric surfactant and an inorganic salt as essential components. 2. The liquid detergent composition according to claim 1, wherein the amphoteric surfactant is a betaine aminoacetate type surfactant. 3. The liquid detergent composition according to claim 1, wherein the inorganic salt is potassium chloride or sodium chloride. 4. The liquid detergent composition according to claim 1, further comprising a polyhydric alcohol.