JPS584003B2 - Seihatsuriyo - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hair styling product, and more particularly to a hair styling product that is free from celluloid erosion and color shirt staining.

There are various types of hair conditioners, including gel-like products such as pomade and tic, emulsion products such as hair cream, and transparent liquid products called hair liquids. Transparent liquid type hair conditioners are widely used for reasons such as ease of application.

This transparent liquid hair styling product is made by dissolving an oil-soluble or poorly water-soluble polyalkylene glycol derivative in an aqueous ethanol solution, and contains approximately 20% polypropylene glycol, polypropylene glycol monobutyl ether, or their phosphate ester salts, and approximately 60% ethanol. %, about 20% water, and typically contains small amounts of fragrances, coloring agents, etc.

This hair styling product has long had the problem of erosion of the celluloid on the temples of glasses, and there have also been complaints that color shirts, which have become popular recently, have a fringe that does not come off even when washed.

Regarding the erosion of celluloid, the ethanol used in liquid hair styling products has strong corrosive properties, and the base polyalkylene glycol derivatives often exhibit erosion.

Although the aforementioned polyglopylene glycol monobutyl ether does not have the properties of corroding celluloid, the compound is extremely difficult to dissolve in water, and a highly concentrated ethanol aqueous solution is required to make a clear solution, which is thought to corrode celluloid. It will be done.

Phosphate ester of polyglopylene glycol monobutyl ether was developed to improve this problem, but high viscosity products with good hair styling properties hardly improve water solubility.

The cause of color shirt staining is thought to be that polyalkylene glycol derivatives, which are non-volatile components, have no affinity with water and therefore remain attached to the fabric.

Generally, a polymer of alkylene oxide having 3 or more carbon atoms is oil-soluble, a polymer of ethylene oxide having 2 carbon atoms is water-soluble, and the solubility of a copolymer of the two changes depending on the ratio thereof.

Oil-soluble compounds are preferred from the standpoint of not causing celluloid erosion, and water-soluble compounds are preferred from the standpoint of not staining the collar shirt, and it is necessary to satisfy contradictory properties.

To solve this problem, attempts have been made to convert polyalkylene glycol into a phosphate ester and to incorporate nonionic surfactants as solubilizers, but satisfactory results have not been obtained. There was a need for a new raw material for hair styling products that would not contaminate colored shirts and have the same hair styling properties as conventional products.

As a result of intensive research, the present inventors found that the compound is an addition polymerized monohydric aliphatic alcohol, lipophilic alkylene oxide, and hydrophilic ethylene oxide, and the overall average molecular weight and number of addition polymerizations of ethylene oxide are constant. It has been found that compounds within the range of 1 are excellent as raw materials for hair styling products.

That is, the present invention is based on the following general formula AO(RO)a(C2H4O)bH (where A is an aliphatic hydrocarbon group having 1 to 22 carbon atoms, R
is an alkylene group having 3 to 18 carbon atoms, a is the polymerization number of alkylene oxide represented by RO, and the overall average molecular weight is 50
An integer ranging from 0 to 5,000; b is an integer corresponding to the polymerization number of ethylene oxide, which corresponds to 3 to 20% by weight of the overall average molecular weight;

) This relates to a hair styling product containing one or a mixture of two or more of the compounds shown in the following.

The raw material alcohol for the compound used in the present invention includes linear or side chain saturated or unsaturated aliphatic alcohols,
For example, methanol, ethanol, n-butanol, caprylic alcohol, lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol,
- Ethylhexanol, instearyl alcohol, oxo-synthesized alcohol, coconut oil reduced alcohol, beef tallow reduced alcohol, etc. Among these, especially carbon number 8-2
2 saturated or unsaturated straight chain alcohols are preferred.

Examples of oil-soluble alkylene oxides include propylene oxide, butylene oxide, inbutylene oxide,
Tetrahydrofuran, α-olefin oxide having 12 to 18 carbon atoms, and the like may be used alone or in mixtures.

The amount of ethylene oxide added is limited because if it is less than 3% by weight, staining of the collar shirt will occur, and if it is more than 20% by weight, celluloid will be eroded.

Furthermore, if the overall average molecular weight is less than 500, celluloid erosion is unavoidable, and if it is more than 5000, synthesis is difficult.
Moreover, by-products are produced that corrode the celluloid and are difficult to remove, which is undesirable.

Although the bonding position of oil-soluble alkylene oxide and water-soluble ethylene oxide in the present invention is not a particular problem, preferred is a block copolymer in which ethylene oxide is added after adding oil-soluble alkylene oxide.

The compound used in the present invention has a very wide range of uses as a hair styling product, and in addition to hair liquid, it can also be used as a base material for hair creams, pomades, tinctures, etc., and is a hair styling product that does not erode celluloid or stain colored shirts. is obtained.

In particular, many conventional hair creams are mainly based on mineral oils such as liquid paraffin and are not compatible with hair tonics, which are mainly ethanol.However, by using the compound used in the present invention, a hair cream that is compatible with hair tonics can be produced. is possible.

Next, production examples of compounds used in the present invention will be shown.

Production example 1 242 cetyl alcohol in an autoclave with an internal volume of 5 liters
After replacing the mixture with nitrogen gas, 1500 g of propylene oxide was added thereto under a pressure of 1.0 to 7.0 kg/cm2, and then 140 g of ethylene oxide was added thereto.

Neutralize the catalyst by adding phosphoric acid, and separate the formed crystals to obtain C16H33O(C3H6O)25(C2H4O)3H
1850g of a compound (sample A6) corresponding to the above was obtained.

Production Example 2 Under the same conditions as Production Example 1, 140 g of ethylene oxide and then 1500 g of propylene oxide were added to 74 g of n-butanol to produce 1650 g of C4H9O (C2H
A compound (sample No. 2) corresponding to 4O)3(C3H6O)25H was obtained.

Production Example 3 Under the same conditions as Production Example 1, 1500 g of propylene oxide and 140 g of ethylene oxide were added to 74 g of n-butanol.
1650 g of C4H9O{(
A random copolymer (sample scrap 3) corresponding to C3H6O)25(C2H40)3)H was obtained.

The compounds shown in Table 1 were obtained in the same manner.

Table 1 shows basic test results regarding celluloid erosion and Kalani shirt staining properties for the nine obtained compounds and six conventionally used compounds.

(1) Erosion test of celluloid One drop of the sample was applied to a piece of celluloid for eyeglasses, left in a constant temperature room at 30° C. for 24 hours, washed with water, dried, and observed for changes in appearance.

(2) Contamination test for colored shirts Fabric for colored shirts (65% polyester, 35% cotton,
One drop of the sample was applied to the surface (color: blue), dried with an infrared lamp for 30 minutes, and then washed at 60°C for 30 minutes using a solution of 2 g of high-temperature soap and 1 g of soda carbonate in 1 liter of water.

After drying, the presence or absence of stains was checked.

As is clear from Table 1, the compounds used in the present invention are:
It can be seen that both the corrosive properties of celluloid and the contaminating properties of colored shirts are satisfied.

Next, the present invention will be explained by examples.

Example 1 A transparent liquid hair styling product having the following formulation was prepared using sample No. 6.

Sample 46 22% by weight ethanol 42 Dalycerin
2. Ion-exchanged water 34. Perfumes and pigments Appropriate amounts Ethanol, glycerin, perfumes and pigments were added to Sample 6 and stirred until uniform, and then ion-exchanged water was added to obtain a transparent liquid hair styling product.

This hair styling product was applied to celluloid for glasses and left in a constant temperature room at 30° C. for 24 hours, but no erosion was observed.

I also applied it to the colored shirt fabric mentioned above and let it air dry for 48 hours before washing it, but there was no change from the new fabric.
No contamination was observed.

Example 2 A transparent gel hair styling product was prepared using sample No. 4 according to the following formulation.

Sample No. 4 72% by weight glycerin monostearate 4 Sorbitol 4 Ion exchange water
20 Flavors, pigments and preservatives Appropriate amount Sample A4 was heated to 60-65°C, glycerin monostearate, perfume, pigments and preservatives were added, stirred until a homogeneous and transparent solution was obtained, and the ions in which sorbitol was dissolved were added. Replacement water was added with continued stirring.

After the solution became transparent, it was rapidly cooled to obtain a transparent gel hair styling product.

This gel was very stable and did not change in the range of 0-45°C.

Tests for celluloid erosion and collar shirt staining were conducted in the same manner as in Example 1, but no problems were found.

Example 3 A hair cream was prepared using the compound of sample No. 6 according to the following formulation.

Sample No. 6 28% by weight liquid paraffin 10 Stearic acid
1〃Dehydrated lanolin
1 〃Ion exchange water
60 Flavoring agents and preservatives
An appropriate amount of sample No. 6 was heated to 60-65°C, liquid paraffin, stearic acid, dehydrated lanolin, fragrance and preservative were added and stirred, and after the mixture became homogeneous, ion-exchanged water was gradually added to obtain a hair cream. .

This hair cream is stable in the range of 0 to 50℃,
No change in appearance was observed.

In addition, no erosion of the celluloid or contamination of the colored shirt was observed, and there was no discomfort even when used immediately after applying hair tonic.

Claims (1)

[Claims] 1 General formula AO(RO)a(C2H40)bH (wherein A is an aliphatic hydrocarbon group having 1 to 22 carbon atoms, R
is an alkylene group having 3 to 18 carbon atoms, a is the polymerization number of alkylene oxide represented by RO, and the overall average molecular weight is -5
b is an integer from 00 to 5,000, and b is an integer corresponding to the polymerization number of ethylene oxide, which corresponds to 3 to 20% by weight of the overall average molecular weight. ) A hair styling product containing one or a mixture of two or more compounds.