JPS62106007A - Hair cosmetic - Google Patents

Abstract

PURPOSE:To obtain a hair cosmetic such as hair liquid, hair rinse, hair tonic, etc., having excellent low-temperature stability and effective to straighten hair curled in bed, by compounding specific amounts of a fatty acid alkylolamide and a polyoxyethylene branched alkyl ether to a hydrated ethanol. CONSTITUTION:The objective hair cosmetic can be produced by compounding hydrated ethanol with (A) 0.01-7(wt)%, preferably 0.05-3% fatty acid alkylolamide such as coconut oil fatty acid diethanolamide, myristic acid monoethanolamide, etc., based on the hair cosmetic and (B) 0.1-10%, preferably 0.3-5% polyoxyalkylene branched alkyl ether [preferably the compound of formula I (R1 and R2 are 4-18C alkyl; n is 5-150) or the compound of formula II (R1 and R2 are 4-22C alkyl; n is 5-150)].

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to hair cosmetics, such as so-called hair liquids, hair rinses, and hair tonics, which are characterized by low-temperature stability and ease of correcting sleeping habits.

Conventionally, fatty acid alkylolamides have been used as foaming aids in hair shampoos and the like. A combination of this and a cationic surfactant is also used in hair rinses, but these rinses lack low temperature stability and tend to become cloudy or precipitate during storage. As a countermeasure to these problems, attempts have been made to increase the low-temperature stability by using polyoxyethylene fatty acid alkylolamide, combining it with an anionic surfactant, or increasing the amount of ethanol.

However, anionic surfactants are skin! The use of polyoxyethylene fatty acid alkylolamide is considered to be dangerous due to skin irritation, and although the low temperature stability ratio can be achieved by increasing the amount of ethanol, it is difficult to correct sleeping habits. was not improved.

On the other hand, it is already known that polyoxyethylene branched alkyl ether can be blended as a general compound (Samurai 1 Jri No. 48-5942, No. 52-250).
No. 38 and No. 51-79734), and it is already known that the texture of hair can be improved by using it in hair rinses. (Unexamined Japanese Patent Publication No. 59
See Publication No.-106412. ) This invention was made for the purpose of improving the low-temperature stability of hair cosmetics and providing excellent ease of correcting sleeping habits, and the invention aims to improve the low-temperature stability of hair cosmetics and provide excellent ease of correcting sleep habits.
It is characterized by blending both 0.1% to 10% by weight of polyoxyethylene branched alkyl ether Th into aqueous ethanol.

The fatty acid alkylolamide in this invention includes:
Those corresponding to the following general formula are used.

R is a C8~2° fatty acid residue, R4 is H or a C2~5 alkylol group, and R2 is a C8~2° fatty acid residue.
5 alkylol group.

In this case, the fatty acids include coconut oil fatty acid and laurin I.
N % Myristic acid, oleic acid, stearic acid, isostearic acid, or behenic acid, and as the alkylolamine, jetanolamine, monoethanolamine, or! -1, isopropanolamine, and the like.

Specific compounds include coconut oil fatty acid jetanolamide, myristic acid monoethanolamide, and lauric acid monoethanolamide. These amides can be used alone or in appropriate combinations.

This fatty acid alkylolamide is added to hair cosmetics without any
．． Blend in a proportion of 01 to 7f. The preferred blending ratio is 0.05 to 3f. If it exceeds 7% by weight, stickiness increases, and if it is less than 0.01% by weight, no effect on correcting sleeping habits can be seen.

However, R4 and R2 are C4-18 alkyl groups, n =
5 to 150 1″2 R,, R2 is a C4-22 alkyl group, n =
5 to 150 Here, examples of the branched alcohol include 2-hexyldecanol, 2-peptylundecanol, and 2-octyldodecanol.

It is a compound obtained by addition-polymerizing 5 to 150 moles, preferably 10 to 40 moles of ethylene oxide to the branched alcohol of Cholera.

This polyoxyethylene branched alkyl ether is blended into the hair cosmetic in a proportion of 0.1 to 10% by weight. The preferred blending ratio is 0.3 to 5 times. 1
If it exceeds 0% by weight, stickiness will increase, and if it is less than 0.1% by weight, it will be low temperature stable. ,PVP,
Nonionic materials such as PVP/VA copolymer, acrylic acid methacrylate copolymer, and cationized cellulose,
Various substances such as cationic and amphoteric polymer compounds, vitamins, biotin, and ultraviolet absorbers can be used.

As water-containing ethanol after boiling, the weight of water/ethanol is 1
Solutions with a ratio of 99/1 to 60/40, preferably 80/20 to 70/30. When this ratio is lower than 60/40, the effect of hair cosmetics on correcting sleep habits becomes inferior.

When the novel formulation described above is used as a whole hair cosmetic, the cosmetic has good low-temperature stability and has the effect of significantly improving the straightening of the hair.

Next, an example will be explained. In these examples, the compounding ratio is the weight percent of the hair cosmetic, and the number in parentheses is the number of moles of alkylene oxide added.
OP represents polyoxypropylene, and POE represents polyoxyethylene.

Example 1-3 and Comparative Example 1-3 All hair styling products having the compositions shown in Table 1 were prepared, and their effects were evaluated.The results are also listed in Table 1. The evaluation method and criteria are as follows.

(1) Sticky length 15Il-ffi, weight 10. Sample 0.
3.9 was applied uniformly, and after 12 hours had passed, scores were given by 6 No9ers using untreated hair strands as a control according to the following evaluation criteria.

5 points: Very good.

4. Good.

3 Equivalent.

2. Slightly inferior.

1 Inferior.

The average values of the above scores are shown in Table 1 based on the following criteria.

◎: 5 or 4 or more.

○: less than 4 to 3° Δ: 3 unskinned to 2°
It was stored at a temperature of

○: No cloudiness or sediment was observed.

Δ: Slight turbidity and precipitation observed.

×: A significant amount of turbidity and precipitation was observed.

(3) Wet a 3-year-old bundle of hair with a length of 15 and a diameter of 2.
The hair bundle was curled by wrapping it around a 5 crn curler and drying it. After 0.1 g of the hair conditioner was evenly applied to the core hair bundle, the hair was combed through and the ease of straightening the curl was evaluated as follows.

Length of hair before wrapping with curlers t.

Length of hair before combing L1 Length of hair after combing t.

The rate was measured, and the evaluation was coded according to the following evaluation criteria and shown in Table 1.

○: More than 90% of the curls have been removed, and most of the hair is frozen.

Δ: Approximately 50% of curls have been removed.

×: O where curls of about 20 curls or less have been removed Example 7 This is an example of so-called hair liquid.

The mixing ratio of the materials was as follows.

POP (55) POE (5) Glyceryl ether
10.0% POP (12) Glyceryl ether phosphoric acid 8. Ojyamse oil fatty acid jetanolamide 0.5 POEI: (20) Octyldodecanol 1.0 dt-pseudomonoacetic acid tocopherol 0.01
Vitamin 860.03 Plant extract 0.1 Chlorhexinone gluconate 0.05 Pigment
trace amount of ethanol
30.0 Purified water 50.
It was confirmed that this hair liquid produced by the conventional method had the same excellent low-temperature stability, stickiness, and ease of fixing as in Examples 3 to 3.

Example 8 This is an example of a so-called hair rinse.

The mixing ratio of the materials was as follows.

Stearyltrimethylammonium chloride 0.
2% N-seed oil fatty acid acyl-L-glutamic acid monotriethanolamine salt (Amisoft CT-12)
0.1 Stearic acid monoethanolamide 0.
Monocationized cellulose 0.2poE
(40) Hexyldecanol 0.6
Polyether modified silicone 0.1 Dye Trace amount of ethanol 10.0 Purified water
88.4 It was confirmed that this hair rinse produced by a conventional method was excellent in terms of low-temperature stability, stickiness, and ease of redressing, similar to those in Examples 3 to 3.

Example 9 This is an example of a so-called hair tonic.

The mixing ratio of the materials was as follows.

Benzyl nicotinate 0.003・t
- Menthol 0.2 Methylpolysiloxane 2.0 POE (40) Hydrogenated castor oil 1.0 Myristic acid soethanolamide 0.3 POI (20) Isostearyl ether 0.5 Vitamin GO, O1 Sodium salicylate 0.1 Piroctone auramine 0.15 UV absorber
trace pigment
Trace amount of ethanol 2
0.0fi #ice making 75.
4 It was confirmed that this hair tonic prepared by the conventional method had the same properties as in Examples 3 to 3 in terms of low-temperature stability, stickiness, and ease of adjustment.

Month, Day 6, 1939 Director General of the Patent Office Michibe Uga 1, Indication of the case, Patent Application No. 1988-242623 2, Name of the invention, hair cosmetics 3, Person making the amendment Patent applicant related to the case (676) Lion Co., Ltd. 4, Agent 6, Specification subject to amendment, '□'1 7. Corrections will be made in the detailed statement of the contents of the amendment as shown in the attached sheet and will be deleted.

Correction book The following corrections will be made to the statement.

I am corrected.

[2) Page 10, Table 1 is corrected as shown in the attached sheet.

(3) Page 11, line 8, "rdl-d-tocopherol acetate" is corrected to "rdl-α-tocopherol acetate".

(Page 41x2, line 4, r stearyltrimethylammonium chloride” is corrected to “stearyltodimethylammonium chloride”.

Claims (1)

[Claims] 0.01 to 7% by weight of fatty acid alkylolamide;
and polyoxyethylene branched alkyl ether at 0.1
A hair cosmetic comprising 10 to 10% by weight of both in aqueous ethanol.