JP2950434B2 - Hair solid cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid cleaning agent for hair which is used by dissolving it in water.

[0002]

The hair detergent such BACKGROUND ART Shampoo, generally, a liquid (solution), also in the form of a like solid
There, many of the commercial products is a liquid detergent. The liquid detergent has a surfactant dissolved in water, and therefore has good foaming properties and is easy to use.
In addition to being bulky, it is necessary to take measures to prevent leakage,
It is disadvantageous in terms of the cost of the container.

[0003] In this regard, the solid detergent is compact because it does not contain water as a solvent, and is made into a solid or powdery powder having a certain size.

[0004]

Hair wash cleaning agent [0006] is, simply does not mean that it is sufficient to have only the ability to remove the dirt, such as oils and fats, should be may be such as the use feeling and finish feeling. For this reason, the conventional hair cleaner contains a surfactant and a modifier such as natural fats and oils, a derivative thereof, and a polypeptide in addition to the surfactant, thereby improving the feeling of use and finish. .

[0005] However, the design of the surfactant, which is an essential component of the detergent, is still insufficient for the above improvement. No ingenuity in aspects other than surfactant formulation
Was enough. Accordingly, the present invention is intended to improve the feeling of use and finish of a solid hair cleansing agent in terms of the formulation of a surfactant.
Another object of the present invention is to improve the foaming properties .

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, a solid cleaning agent for hair according to the present invention (hereinafter simply referred to as a solid cleaning agent).
The “detergent” or “solid detergent” is a surfactant in which an anionic surfactant and an amphoteric surfactant are 10 parts by weight of an anionic surfactant (hereinafter, “parts by weight” is simply referred to as “parts”). 6) to 18 parts of an amphoteric surfactant, and a combination of a carbonate compound and an acid.
An effervescent disintegrating agent is prepared .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The solid detergent of the present invention may be formed into a tablet or a powder. In the present invention, as the surfactant, an anionic surfactant and an amphoteric surfactant are used in combination. If only anionic surfactants are used, the feeling of use and finish will be poor, such as squeezing during hair washing and hair sticking when finished, and using only amphoteric surfactants will cause less foaming, cream Fine bubbles with such a heavy feel are generated, and finger passing during hair washing becomes poor. In the present invention, a cationic surfactant and / or a nonionic surfactant are used in addition to the surfactants of these essential components to improve the feeling to the extent that the object of the present invention is not impaired. May be.

The proportion of the anionic surfactant to the amphoteric surfactant must be from 6 to 18 parts of the amphoteric surfactant per 10 parts of the anionic surfactant. If the amphoteric surfactant is less than this ratio, the effect of the combined use of the amphoteric surfactant is not seen, and the problem of the anionic surfactant appears. The problem of the activator appears.

Examples of the anionic surfactant include soap, lauryl sulfate, polyoxyethylene alkyl ether sulfate, alkylbenzene sulfonate,
Polyoxyethylene alkyl ether phosphoric acid, polyoxyethylene alkyl phenyl ether phosphoric acid, N-acyl amino acid salt, α-olefin sulfonate, alkyl sulfate, alkyl phenyl ether sulfate, methyl taurate and the like. , One of
One is used alone, or two or more are used in combination.

As the amphoteric surfactant, for example,
Alkyldiaminoethylglycine hydrochloride, 2-alkyl-
N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryl dimethylaminoacetic acid betaine, coconut oil fatty acid amide propyl betaine, fatty acid alkyl betaine, sulfobetaine, amyoxide, and the like, any one of which may be used alone or Or two or more are used in combination.

In the present invention, a disintegrant may be used to make the solid detergent easily soluble in water. As the disintegrant, sugars and inorganic substances usually used at the time of tableting can be used, and examples thereof include cellulose, lactose, silicic anhydride, starch and the like, and any one of them can be used alone or 2 The above may be used together. In addition,
It is preferable to use a carbonate compound and an acid as the disintegrating agent, because when the solid detergent is dissolved in water, carbonic acid gas is generated by the reaction between the carbonate compound and the acid to cause foaming. By foaming, dissolution is promoted, performance is added, and the user can feel interesting.

Examples of the carbonate compound include baking soda, sodium carbonate, potassium carbonate and the like. Any one of them may be used alone, or two or more thereof may be used in combination. Examples of the acid include tartaric acid,
Organic acids such as citric acid, malic acid, fumaric acid, succinic acid, and gluconic acid; and inorganic acids such as sodium dihydrogen phosphate, potassium dihydrogen phosphate, and sodium acid hexametaphosphate. It is used or two or more are used in combination. In addition, as the acid, an organic acid such as tartaric acid and citric acid that is not easily absorbed by moisture is preferable. This is to prevent the reaction with the carbonate compound from starting due to moisture absorption.

[0013] The use ratio of the disintegrant is not particularly limited,
For example, for a total of 10 parts of surfactant, 5 to 60
Set within the range of the part. If the proportion of the disintegrant is below this range, the effect as a disintegrant may not be obtained,
Exceeding this may adversely affect the roughness and feel during use. When a carbonate compound and an acid are used as the disintegrant, 10 parts of the amphoteric surfactant is used.
It is preferable that the proportion of the carbonate compound is 7 parts or less and that the ratio of the carbonate compound / acid (weight ratio) ≧ 0.2. When the ratio of the carbonate compound is more than 7 parts, foaming becomes heavy, which is not preferable. When the ratio of the carbonate compound / acid is smaller than 0.2, sufficient foaming property may not be obtained. . When a foaming agent is used, more preferably, the foaming agent is in a ratio of 8 to 14 parts to 10 parts of the amphoteric surfactant, and the carbonate compound / acid (weight ratio) is 0.8 to 1.
2.

[0014] Amphoteric surfactants are generally strongly affected by pH and salts. At low pH values and high Na ion concentrations, heavy foams are formed, and the feeling of use is deteriorated. For this reason,
When a carbonate compound and an acid are used as disintegrants, it is preferable to limit the amounts of these compounds as described above. The solid detergent of the present invention may be made of only an anionic surfactant and an amphoteric surfactant, but may contain one or more other components as necessary.
For example, as described above, cationic surfactants, nonionic surfactants, disintegrants, foaming agents, besides touch agents, animal and plant extracts, etc., inorganic builders, antioxidants, fragrances, pigments, Preservatives, chelating agents, ultraviolet absorbers and the like can be used. Examples of the feelant include cationized polymers such as quaternary ammonium salts, cationized cellulose derivatives, cationized PPT (polypeptide), and condensates of polyglycol and polyamine;
Water-soluble polymers such as collagen derivatives, methylcellulose and hydroxyethylcellulose; fatty acid alkanolamides, higher fatty acid esters, higher alcohols, higher fatty acids, squalane, jojoba oil, silicone oil, silicon derivatives, etc., any one of which is used alone Or two or more are used together. The usage ratio of the feeler is, for example, 0.01 to 10 parts with respect to 10 parts in total of the anionic surfactant and the amphoteric surfactant. Further, for example, gum and / or a water-soluble polymer compound can be blended in an optional ratio with respect to a total of 10 parts of the anionic surfactant and the amphoteric surfactant.

The above essential components and optional components used as required can be powdered and mixed, or this mixture can be granulated to obtain a powdery detergent. When the solid detergent of the present invention is formed into a tablet, the solid detergent is produced as follows using the above-mentioned essential components and optional components used as needed. These components have, for example, an average particle size of 0.1
It is used as a powder of about 2 mm. If the average particle size is out of this range, disintegration during use and feeling during use may be adversely affected. Tablets can be obtained by granulating them once to the above-mentioned size and then molding them by an appropriate amount by a usual tableting method.

When the detergent of the present invention is in the form of a tablet, the weight of each tablet is, for example, 0.5 to 5 g, but is not limited thereto. In addition, an amount suitable for one use (for example, 1 to 3 g) is convenient for use. Although the shape of the tablet-shaped solid detergent is not particularly limited, for example, a diameter of about 20 mm and a thickness of about 2 mm (weight of about 2.
5g).

The solid detergent of the present invention can be made to be used as a shampoo, a rinse, a body soap, etc., and can be used for business use, general household use, portable use and the like.

[0018]

[Function] By making the detergent solid, an anionic surfactant and an amphoteric surfactant can be used as the surfactant in the above specific ratio. Therefore, the feeling of use and the finish are good, and the foaming is good and the cleaning property is good. As disintegrants, carbonate compounds and
Using an effervescent disintegrant consisting of a combination of
When the solid detergent dissolves in water,
Carbon dioxide gas is generated by the reaction with the acid and foams
This foam promotes dissolution and improves puff
Adds omance.

[0019]

[Examples] Specific examples, comparative examples and reference examples of the present invention will be shown below, but the present invention is not limited to the following examples. -Reference Examples 1 to 5, Examples 1 to 9 and Comparative Examples 1 to 12-Sodium lauryl sulfate (trade name "Nimar 10 Powder" manufactured by Kao Soap Co., Ltd.) as an anionic surfactant:
Coconut oil fatty acid amidopropyl betaine (trade name “Tego-Betain powder” manufactured by Goldschmidt Japan KK): powder) was used as the amphoteric surfactant. The powder was mixed according to the formulations shown in Tables 1 to 4 to obtain a powdery solid detergent.

[0020] - Example 1 0-18 - to the formulation shown in Table 5, to obtain a tablet-shaped solid detergent are mixed well and then pressed into tablets by a conventional method. The state of the foam and the finished feeling of the hair bundle were evaluated for the obtained detergent. The results are shown in Tables 1 to 5.

The state of the foam was evaluated according to the following criteria based on the state of foaming when the detergent was stirred and dissolved in 50 ml of warm water at 40 ° C. ：: The foaming amount is large, the feel of the foam is light and good. ：: Foaming amount and foam feeling are moderate. Δ: The foaming amount was slightly small, but the feeling of the foam was moderate.

×: The foaming amount is small and the feeling of foam is heavy. The finished feeling of the hair bundle is evaluated by the following criteria by dissolving one tablet (the same amount in the case of powder) in 50 ml of warm water at 40 ° C, immersing the hair bundle, washing with water, and drying. did. ：: Smooth comb, gloss and firmness.

：: Good combability, but lacks gloss or firmness. Δ: There is some roughness. X: Combability is poor and roughness is strong.

[0024]

[Table 1]

[0025]

[Table 2]

[0026]

[Table 3]

[0027]

[Table 4]

[0028]

[Table 5]

As shown in Tables 1 to 5, all the cleaning agents (the cleaning agents of Examples) within the range of the activator specified in the present invention gave good results in foaming properties and finish. However, those out of the range (the detergent of the comparative example) could not obtain good results. - was prepared tablet-like solid detergent in the same manner as in the formulation of the following Examples 1 0-18 - Example 19.

・ Sodium hydrogen carbonate: 11 parts ・ Citric acid: 10 parts ・ Sodium lauryl sulfate: 22 parts ・ Lauryl dimethylaminoacetate betaine: 18 parts ・ Lauryl sulfosuccinate disodium: 4 parts ・ Casein hydrolyzate: 14 parts ・squalane: 14 parts cationic cellulose: 3 parts perfume: 3 - example 2 0 - was prepared tablet-shaped solid detergent in the same manner as in example 1 0-18 by the following formulation.

Sodium bicarbonate: 12 parts tartaric acid: 10 parts sodium lauryl sulfate: 18 parts coconut oil fatty acid amidopropyl betaine: 18 parts lauryl disodium sulfosuccinate: 4 parts casein hydrolyzate: 14 parts Jojoba oil: 14 parts ・ Cationized cellulose: 3 parts ・ PPT: 4 parts ・ Fragrance: 3 parts The tablet-like solid detergents of Examples 19 and 20 were evaluated for disintegration, state of foam, and finished feeling of hair bundle. . As a result, all were good.

[0032]

Since the solid detergent of the present invention is as described above, the feeling of use and finish can be improved by adding a surfactant, and the anionic surfactant and the amphoteric surfactant can be improved. The adverse effects caused by the combined use with the activator are unlikely to appear.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C11D 3/04 C11D 3/04 3/10 3/10 3/20 3/20 17/06 17/06 // (C11D 1 / 94 1:90 1:14) (72) Inventor Akira Kobayashi 1-11-7, Kamurarijaku, Mitaka City, Tokyo (72) Inventor Kenichi Hayashi 3-6-16 Okayama, Shijonawate City, Osaka Prefecture (56) References Special JP-A-58-194998 (JP, A) JP-A-57-131295 (JP, A) JP-A-51-14907 (JP, A) JP-A-47-27208 (JP, A) JP-B-46-25601 ( JP, B1) JP 40-11740 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) C11D 17/00 A61K 7/075-7/08 A61K 7/50 C11D 3 / 04 C11D 3/10 C11D 3/20 C11D 17/06 C11D 1 / 90-1 / 94 C11D 1/14 WPI / L (QUESTEL)

Claims (2)

(57) [Claims] 1. A with anionic surfactant and amphoteric surfactant are used together in a ratio of amphoteric surfactant 6-18 parts by weight to 10 parts by weight of an anionic surfactant as a surfactant, a carbonate compound From a combination with an acid
That effervescent disintegrants hair solid detergent ing is blended is. 2. A method according to claim 1 which is molded into tablets
The solid cleaning agent for hair according to item 1 .