JPH072627A - Conditioning composition for hair - Google Patents

Abstract

PURPOSE:To provide hair with an abundantly voluminous feeling and excellent touch, supplying hair with elasticity and luster for a long period of time, comprising a bivalent metal salt capable of producing a specific metal ion and a specific alcohol or ether in a specific ratio in a prescribed pH range. CONSTITUTION:A conditioning composition for hair comprises 0.1-5.0wt.% of one or more bivalent metal salts capable of releasing Ca<++>, Mg<++> or Zn<++> in an aqueous solution and 0.5-50wt.% of one or more selected from the group consisting of a 2-4C alkanediol, its methyl or ethyl ether, 1-methoxypropanol, benzyl alcohol, benzyloxyethanol, phenoxyethanol, cinnamyl alcohol and is adjusted to pH2.5-7. Calcium chloride, magnesium nitrate or zinc sulfate may be cited as the bivalent metal salt. Three of 1,3-butanediol, benzyl alcohol and benzyloxyethanol are preferably used as the organic compound.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair conditioning composition, and more particularly, to a hair which is capable of imparting a rich volume feeling and a good tactile sensation to the hair and continuing to impart elasticity and luster for a long period of time. Conditioning composition.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Various types of hair conditioning agents are known. For example, European Patent No. 449,133 discloses a liquid hair cosmetic composition containing a dialkylene glycol monoalkyl ether and a compound that releases a divalent or polyvalent metal ion, and German Patent No. 2; 324, 7
No. 97 discloses a hair cosmetic containing a cationic polymer and a divalent metal salt.

However, since each of these conventional hair conditioning agents is far from providing all of the desired properties, the user is forced to select and use several kinds of conditioning agents. There were many cases, and I could not stand the trouble.

Therefore, there has been a demand for the development of a conditioning agent for hair, which brings a rich amount of feeling to the hair, a good tactile sensation and an effect of preventing damage, and which can continue to give elasticity and luster for a long period of time.

[0005]

Means for Solving the Problems As a result of intensive investigations in view of such circumstances, the inventors of the present invention have contained a divalent metal salt capable of releasing a specific metal ion and a specific alcohol or ether at a specific ratio. It was found that the liquid composition to be provided has the performance normally expected of the hair conditioning agent, and the present invention has been completed.

That is, the present invention provides the following components (a) and (b); (a) calcium ion (hereinafter referred to as “Ca ²⁺ ”), magnesium ion (hereinafter referred to as “Mg ²⁺ ”) in an aqueous solution. 1) or / and 2 or more kinds of divalent metal salts capable of releasing zinc ion (hereinafter, referred to as “Zn ²⁺ ”) 0.1 to 5.0% by weight, (b) carbon number 2 4 alkanediol, their methyl or ethyl ether, 1-methoxypropanol, benzyl alcohol, benzyloxyethanol, phenoxyethanol and cinnamyl alcohol selected from the group consisting of 0.5 to 50% by weight. The present invention provides a conditioning composition for hair, which contains and has a pH of 2.5 to 7.

In an aqueous solution of component (a), Ca ²⁺ , Mg ²⁺ and / or
Or, as specific examples of the divalent metal salt capable of releasing Zn ²⁺ , calcium chloride, magnesium chloride, zinc chloride, calcium nitrate, magnesium nitrate, calcium sulfate, magnesium sulfate, inorganic salts such as zinc sulfate, lactate, acetate, Examples thereof include water-soluble organic acid salts of propionate, gluconate, citrate, glycerophosphate, pantothenate, tartrate, sorbate and the like.

Component (a) is contained in the composition of the present invention in an amount of 0.1-5.
The content is 0% by weight (hereinafter, simply indicated by "%"), but preferably 0.5 to 3.0%. If it is less than 0.1%, the effect is poor, while if it exceeds 5.0%, the hair is squeaked.

Among the components (b) used in the present invention,
1,3-butanediol, benzyl alcohol and benzyloxyethanol are preferable, and it is particularly preferable to use the above three together.

Component (b) is present in the composition of the invention in an amount of 0.5-5.
The content is 0%, preferably 1.0 to 30%, particularly preferably 2 to 15%. If it is less than 0.5%, the effect is poor, whereas if it exceeds 50%, skin irritation appears remarkably.

The pH of the liquid hair conditioning composition of the present invention containing the above components (a) and (b) is 2.5.
It is in the range of -7, but more preferably in the range of 3-6. When it is less than 2.5, the skin is irritated, while when it exceeds 7, the effect is poor.

It is particularly preferred that the hair conditioning composition of the present invention contains an organic acid. The organic acid used is not particularly limited as long as it does not form a water-insoluble compound with Ca ²⁺ , Mg ²⁺ or Zn ²⁺ , but it is particularly preferable to use lactic acid, tartaric acid or citric acid.

The above organic acid is added to the composition of the present invention in an amount of 1.0 to
The content is preferably 7.5%, particularly preferably 2.5 to 5.0%. Less than 1.0%, the effect is poor, while 7.5%
If it exceeds, the feeling of touch will deteriorate.

If necessary, the hair conditioning composition of the present invention may be used as long as it is compatible with the above-mentioned metal ions in addition to the above-mentioned components, as long as the effect of the present invention is not impaired. Various silicone derivatives, polymers, thickeners, brighteners, UV absorbers, anti-dandruff agents, preservatives and the like used in the material can be added. For more information on these additives, see K.S. It is described in "Basics of Cosmetics and Their Prescriptions", Second Edition, by Schroeder, pp. 722-737 (published by Huthig in 1989).

The hair conditioning composition of the present invention is prepared by subjecting the above-mentioned components to operations such as mixing according to a conventional method to prepare various dosage forms such as aqueous solutions, lotions, gels, emulsions, suspensions and aerosols, depending on the intended use. Can be prepared.

The hair conditioning composition of the present invention is preferably used after treatments such as hair washing, hair dyeing, and permanent wave.

[0017]

EFFECTS OF THE INVENTION The hair conditioning composition of the present invention provides a rich volume feeling, a good tactile sensation, and an effect of preventing damage to hair, and further imparts elasticity and luster for a long period of time.

[0018]

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

Examples 1 to 9 and Comparative Examples 1 to 4 A hair conditioning composition whose composition is shown in Table 1 was prepared by a conventional method (in Table 1, B indicates balance). The hair conditioning effect (effect of sustaining the feeling of volume and hairstyle) of each of the obtained compositions was evaluated according to the following criteria for 5 test subjects, and the average value thereof was obtained. The results are also shown in Table 1. (Evaluation criteria) ◎ Very good. ○ Good. Fairly inferior. × Inferior.

[0020]

[Table 1]

* 1 C _9-11 alkyl glucoside (condensation degree: 1.35) * 2 Lactic acid * 3 Citric acid

As is clear from the results shown in Table 1, the products of the present invention (Examples 1 to 9) are all comparative products (Comparative Examples 1 to 1).
It can be seen that, as compared with 5), it shows an excellent conditioning effect.

Claims (1)

[Claims] 1. The following components (a) and (b); (a) one or more divalent metal salts capable of releasing calcium ion, magnesium ion and / or zinc ion in an aqueous solution 0.1 to 5; 0.0% by weight, (b) one or more selected from the group consisting of alkanediol having 2 to 4 carbon atoms, their methyl or ethyl ether, 1-methoxypropanol, benzyl alcohol, benzyloxyethanol, phenoxyethanol and cinnamyl alcohol. A conditioning composition for hair, comprising two or more of 0.5 to 50% by weight and having a pH of 2.5 to 7.