JPH05331029A - Waving lotion and its use - Google Patents

Abstract

PURPOSE:To obtain a waving lotion satisfying viscosity, fluidity, uniform spread and affinity for hair required for each use, capable of effectively treating, having excellent 1ong-term stability. CONSTITUTION:A waving lotion far permanent wave by iron and for reforming curly hair contains a specific amount of an alkali metal salt and/or ammonium salt of a carboxymethyl cellulose having <=2.0 degree of etherification as a thickening spreading agent and has viscosity in specific ranges, respectively. The prepared waving lotion is used to carry out treatment by specific methods, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waving lotion and a method of using the waving lotion. More specifically, the present invention is based on the clarification of the relationship between a thickening spreader, which is an important additive for waving lotions, and a waving lotion for each application. The present invention relates to a waving lotion and a treatment method using the same.

[0002]

2. Description of the Prior Art The theory of permanent waves has not been fully clarified, but cystine bonds (-S-S
−) Plays an important role. Usually, the first liquid (so-called waving lotion) and the second liquid are used for the permanent wave. The first liquid contains thioglycolic acid or its salt or cysteine as an alkaline solution as a reducing agent. The water, the alkali and the reducing agent of the first liquid respectively break the hydrogen bond, the salt bond and the cystine bond in the hair to soften the hair. In the second liquid, potassium bromate, sodium bromate, sodium perborate, and hydrogen peroxide are recognized as four oxidizing agents, but sodium bromate is usually used. After the first liquid is applied, it is rinsed with an acidic rinse, and when the second liquid is applied, the alkali is neutralized and the salt bond is recombined, and the cystine bond is recombined by the action of the oxidizing agent, and as the hair dries. A new hydrogen bond is completed, and a wave is completed on the hair.

The function and quality required of this first liquid is reducing power in the first place, but there are many other necessary conditions incidentally, among which the thickening and spreading agent provides. The impact is very large. The main purpose of adding the thickening and spreading agent is to provide the first liquid with an appropriate viscosity and spreading property.

As the thickening and spreading agents which have been commonly used, there are cellulose derivatives, sodium polyacrylate, polyisobutylene, polyethylene glycol, polyvinyl alcohol, natural pastes and the like. Further, JP-A-61-286312 discloses that the degree of etherification (hereinafter referred to as D
It is described that a carboxymethyl cellulose salt having S (abbreviated as S) of 2.0 or more is used as a thickening and spreading agent. However, waving lotions have a wide variety of uses, the viscosity required for each use or application,
Since the functions and physical properties are different, it is necessary to be creative in the usage of the thickening spreader depending on each usage or application. JP 61
-286312 merely discloses the use of a carboxymethyl cellulose salt having a DS of 2.0 or more as a thickening and spreading agent.

[0005]

[Problems to be Solved by the Invention] Thickening and spreading agents for waving lotions for ironing perm or for straightening curly hair include:
Various functions, properties and qualities are required. Although the degree varies depending on the usage and application, the problems that often occur are long-term stability of function and quality, reducing power, and moderateness when evaluated as a waving lotion for iron perm or hair straightening. Ironing that can be performed in a short time at low temperature from the viewpoint of various viscosities, favorable fluidity, uniform spreading properties, hair compatibility, design shape retention during and after treatment, wide temperature range, especially prevention of hair damage Sex, rinse effect, etc. However, a waving lotion for ironing or straightening hair that solves all of the above problems has not been obtained by the prior art.

According to the use of the waving lotion, the waving lotion for iron perm first reduces the hair sufficiently evenly with a lotion solution and then curls it with an iron to give it a fluidity and hair with an appropriate viscosity. And the ability to curl at low temperatures. Further, since the waving lotion for straightening curly hair needs to be reduced to keep the curly hair in a straight hair state, a high viscosity that forms a hair bundle at the time of application of the first liquid to prevent curling and becomes a straight hair state. In addition, it is required to have high tackiness, and further, it is required that the spreading material can be more spread than the cold waving lotion for rod winding and the cold waving lotion for iron perm, and can be spread uniformly.

[0007]

Means for Solving the Problems As a result of intensive studies, the present inventors have used a specific amount of an alkali metal salt and / or ammonium salt of carboxymethyl cellulose having a DS of less than 2.0 to bring the viscosity during use to a specific range. As a result, they have found that a waving lotion for cold waves, iron perms and hair straightening that satisfies all the above problems can be obtained, and completed the present invention.

That is, the present invention contains an alkali metal salt and / or ammonium salt of carboxymethyl cellulose having an etherification degree of less than 2.0 as a thickening and spreading agent in an amount of 1.25 to 10% by weight, preferably 2.0 to 10% by weight, Viscosity at use is liquid temperature 23
1000-70000 CPS at ℃, preferably 2500-70000 CPS
In the range of 1.25 to 10% by weight as a thickening spreader, and an alkali metal salt and / or ammonium salt of carboxymethyl cellulose having an etherification degree of less than 2.0, preferably 2.0 Containing ~ 10% by weight, viscosity at use is liquid temperature 23 ℃
The present invention provides a waving lotion for straightening hair, characterized by being in the range of 2500 to 10000 CPS, and various treatments using these waving lotions.

In the case of a waving lotion for iron perm, it is low in terms of fluidity with an appropriate viscosity and affinity for hair, design retention during and after treatment, and a wide temperature range, especially for preventing damage to hair. Ironing workability that can be performed in a short time in the temperature range and rinsing effect are particularly required. In the present invention, the viscosity of the waving lotion is 1000 ~ 70000 CPS, preferably 2500 ~ 7000 at a liquid temperature 23 ℃.
By adding an alkali metal salt and / or ammonium salt of carboxymethyl cellulose having a DS of less than 2.0 so as to be 0 CPS in a concentration of 1.25 to 10% by weight, preferably 2.0 to 10% by weight in the waving lotion,
A suitable waving lotion is obtained for iron perms. Here, the iron perm includes a conventional punch perm.

The ironing perm waving lotion of the present invention can be curled at a low temperature. For example, the surface temperature of the iron was 180 to 240 ° C. when the conventional product was used. Can be used at 100-170 ℃,
No heat damage to hair.

As a method for applying an iron perm using the waving lotion for iron perm of the present invention,
After applying the waving lotion to the hair and leaving it for a process time of 8 to 15 minutes, the surface temperature of the iron is set to 100 to 170 ° C, preferably 120 to 170 ° C, and the ironing time is set to 8 to 25 minutes. There is a method of ironing. Other iron perm treatment conditions are in accordance with the usual iron curl method, but the iron perm treatment method of the present invention can be applied to both the pre-roll curl method including the conventional punch perm method and the original curl method. According to the waving lotion for iron perm of the present invention and the treatment method thereof, curl formation at high temperature, which is the biggest drawback of the conventional punch perm, is improved, curl formation at low temperature becomes possible, and treatment time is shortened. The effect of being able to be brought is brought about.

Further, the waving lotion for iron perm of the present invention is not only used for the above-mentioned iron perm but also after the waving lotion is applied to the hair for 8 to 15 minutes as a process time. By using an iron at an iron surface temperature of 100-170 ℃, it can be applied to straightening hair straightening treatment. Furthermore, although the low-viscosity product of the waving lotion is originally for iron perm, it is also suitable for so-called rod winding, in which the waving lotion is applied to hair and a rod is used for a process time of 10 to 15 minutes. Can be used for

Next, a waving lotion for straightening curly hair will be described. In the case of a waving lotion for straightening curly hair, it is important that the amount of spread can be increased and that uniform spread is achieved. Furthermore, a hair bundle is formed during application of the first liquid, and curling is prevented. Ideally, a lotion solution that produces a hairy state. In the present invention, the alkali metal salt and / or ammonium salt of carboxymethyl cellulose having a DS of 2.0 or less is used as a thickening spreader so that the viscosity of the lotion is 2500 to 100000 CPS at a liquid temperature of 23 ° C. Is added in the range of 1.25 to 10% by weight, preferably 2.0 to 10% by weight, to obtain a waving lotion suitable for straightening hair.

Hair straightening using this waving lotion for hair straightening can be carried out by both the so-called hair bundle panel method and the iron straightening method. In the case of the hair bundle panel method, the waving lotion for straightening curly hair is applied to the hair for 8 to 15 minutes and for a process time of 10 to 15 minutes. In the case of the iron straight method, the process time is 10 to 15 minutes and the iron surface temperature is 100.
Operate using an iron at ~ 170 ° C. Other conditions are in accordance with the usual method for straightening hair. The viscosity is
The waving lotion in the range of more than 70000CPS and 100000CPS does not show a particularly remarkable effect as an iron perm, but has good physical properties such as uniform spreading property required for a waving lotion for straightening hair,
It has a sufficient effect for straightening hair. Particularly, the remarkable effect of the present invention is obtained under the specific conditions as described above.

Examples of the alkali metal salt of carboxymethyl cellulose used in the waving lotion of the present invention include lithium salt, potassium salt, sodium salt and the like, but sodium salt which is widely produced industrially is most commonly used. To be done.

In the present invention, the alkali metal salt and / or ammonium salt of carboxymethyl cellulose is D
Those with S of 2.0 or less are used. Normally, a solution in which a carboxymethyl cellulose salt having a DS of more than 2.0 has no structural viscosity and exhibits Newtonian flow flow characteristics. For waving lotions,
The flow characteristics of Newtonian flow have a negative effect. That is, since the waving lotion liquid easily flows, there is a problem in that when the waving lotion is applied, the waving lotion easily drips and the ground is easily damaged. Further, when the waving lotion liquid easily flows, the amount of the waving lotion adhered to the hair decreases, and in order to prevent this, the viscosity of the waving lotion liquid must be increased more than necessary. However, if the waving lotion liquid becomes too viscous, it will hinder the coating work. In addition, the amount of the alkali metal salt and / or ammonium salt of carboxymethyl cellulose used to increase the viscosity is increased, resulting in an increase in cost. Further, the carboxymethylcellulose salt having a DS of 2.0 or more has an incomplete industrial production technology, and it is difficult to stably obtain a high quality one at a low price.

The waving lotion of the present invention can be used in combination with already known thickening and spreading agents, and the components other than the thickening and spreading agent are usually used in waving lotions for their respective applications. The components described can be used as appropriate.

[0018]

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

Example 1 Various waving lotions were prepared using sodium carboxymethyl cellulose (hereinafter abbreviated as CMC-Na) as a thickening and spreading agent. The prescription is shown in Table 1. The degree of etherification and the amount of CMC-Na used in Table 1 are shown in Table 2.

[0020]

[Table 1]

[0021]

[Table 2]

Here, the amount of water (x ₂ ) was adjusted to be 100% by weight in total. The viscosities in Table 2 are waving lotion viscosities and were measured at 23 ° C. using a Brookfield B type viscometer.

Examples 2 to 13 and Comparative Examples 1 to 6 <Evaluation of Iron Perm> Barber A (male 41 years old) and barber B (female 35 years old) were given 15 models each, and the present invention No. 1-12, comparative product No. 1
An iron perm was applied using the waving lotion solution of No. 3. The main winding was performed mainly on the frontal region and the crown, and the front winding was performed mainly on the temporal region and the occipital region. Table 3 shows the conditions during the treatment (process time, iron surface temperature, and ironing work time).

[0024]

[Table 3]

The evaluation results are summarized in Tables 4 and 5. The evaluation criteria for each item are as follows.

A) Spreadability a-1) Good workability: No dripping. Possible: There is dripping (like conventional products). Bad: Dripping does not spread greatly. a-2) After washing with water: Good: Moist and supple, and there is no slimy feeling during work. Acceptable: There is some feeling of remaining amount or a slight feeling, but it does not matter. Poor: There are drawbacks such as a slimy feeling of remaining amount and a greasy feeling of degreasing.

B) Original curl workability b-1) Slipability of iron Good: Slip moderately. Possible: Normal. Poor: There are defects such as excessive slippage or non-slippage. b-2) Easy curl: Good: Accurate. Possible: Normal. Poor: There are drawbacks such as curling takes a long time, it takes less time, and the root is weak. b-3) Shape-retaining property (at the end of treatment with the second liquid) Good: Does not lose its shape. Possible: Slightly deformed (like conventional products). Poor: There are drawbacks such as remarkable loss of shape and pain in hair.

C) Pre-rolling curl workability c-1) Ease of curling good: Good, fast and accurate curling. Possible: Normal. Poor: There are drawbacks such as curling takes a long time, it takes less time, and the root is weak. c-2) Shape retention (at the end of the second liquid treatment) Good: The shape is not lost. Possible: Slightly deformed (like conventional products). Poor: There are drawbacks such as remarkable loss of shape and pain in the tips of hair.

D) Hair after oxidation treatment d-1) Damage to hair (at the end of treatment with the second liquid) No damage to hair Damage to hair Small damage to hair Small damage to hair was evaluated in four grades. d-2) Good shape retention: The shape is not lost. Acceptable: The shape is slightly lost. Bad: Remarkably loses its shape.

[0030]

[Table 4]

[0031]

[Table 5]

Note) In the table, "best" is especially excellent among "good".

The evaluations of the examples are summarized in Tables 4 and 5, and each item will be supplemented below.

A) Spreadability: The waving lotion having a viscosity in the range of 1000 to 70,000 CPS has appropriate tackiness and affinity for hair, so that it does not sag on the skin and does not damage the skin. Further, the amount of liquid remaining on the hair was 120 to 150% of the amount of liquid of the comparative example, and there was little loss or risk of sagging to the forehead or neck. In subsequent water washing for removing excess chemicals, there is no slimy feeling due to residual CMC-Na in normal water washing, and a slight slimy feeling remains for 10000 CPS or more, but it interferes with subsequent treatment Not,
After careful washing with water, the slimy feeling disappeared. On the other hand, in Comparative Example 3, washing with water increased the frictional resistance of the hair, impaired comb and finger passage, and took time to handle the hair to finish it into a desired hairstyle. That is, when the product of the present invention was used, the combing after washing with water was very good, and the rinse effect was recognized.

B) Curling workability: The ease of curling at the time of the original winding and the first winding was good in comparison with the comparative example. In addition, the shape-retaining properties at the end of curling were all good, and the curl due to the own weight of the hair and water was less likely to be returned, and the rework or the like for obtaining the desired hairstyle could be extremely reduced. c) Working temperature: Low temperature curling is possible and the conventional curling temperature can be lowered by 70-140 ℃. As a result, damage due to heat disappeared.

D) Shape retention of hair after oxidation treatment: Shape retention of hair after oxidation treatment is one of the most important factors for keeping the hairstyle due to permanent wave. It is almost the same as the shape retention property during iron curl work, and Comparative Examples 1 to 3
In curl collapse due to oxidation treatment is large, so conventionally it is necessary to cover the shortcomings of the drug by techniques such as estimating the amount of returning from the beginning and performing tight iron curl in order to obtain the desired hairstyle. However, the result was often greatly influenced by the experience skill of the practitioner, but since the waving lotion of the present invention has good curl shape retention property, such a defect will be greatly improved. While improving the ease of making hairstyles, it has made possible more complex and innovative hairstyles.

E) The waving lotion of the present invention is stored for one year under ordinary storage conditions (left at room temperature in a closed container not exposed to direct sunlight) for pH, viscosity, transparency, color tone, dispersion state,
The reducing power was unchanged.

Examples 14 to 17 and Comparative Examples 7 to 9 <Evaluation of straightening of hair by the hair bundle panel method> 4 of the present invention Nos. 6, 7, 10 and 13 obtained in Example 1
Barber A using three types of waving lotions and three types of comparative products No. 1-3
(Male, 41 years old) ・ Barber B (female, 35 years old) was given 4 models each, and hair straightening was performed by the hair bundle panel method under the conditions shown in Table 6, and the evaluation results shown in Table 7 were obtained. Got

[0039]

[Table 6]

[0040]

[Table 7]

In the table, the applicability of the hair bundle is evaluated as follows, and the shape retention of the straight hair is in accordance with the above.・ Good coatability: Spread evenly. Acceptable: Some unevenness occurs. Bad: Does not spread evenly.

Good straight hair shape retention: Curling is sufficiently prevented and the straight hair state is maintained. Possible: Curling is prevented to the extent that it can be treated. Poor: Curling is not sufficiently prevented and the straight hair state cannot be maintained.

Examples 18 to 20 and Comparative Examples 10 to 12 <Evaluation of straightening hair by iron straightening method> Comparison with three types of waving lotions of the present invention Nos. 6, 7, and 10 obtained in Example 1 Using three types of waving lotions No. 1-3, barber A (male 41 years old) and barber B (female 35 years old) are given four models each, and curled by the iron straight method. When correction was performed under the conditions shown in Table 8, the evaluation results shown in Table 9 were obtained.

[0044]

[Table 8]

[0045]

[Table 9]

Examples 21 to 23 and Comparative Example 13 <Hair straightening by iron straightening method> The waving lotions of the products No. 6, 7 and 12 of the present invention obtained in Example 1 and the waving of the comparative product No. 1 Barber A (male 41 years old) / Barber B using lotion
(Female, 35 years old) was given 4 models each, and hair straightening was performed by the iron straightening method under the conditions shown in Table 10, and the evaluation results shown in Table 11 were obtained.

[0047]

[Table 10]

[0048]

[Table 11]

Claims (6)

[Claims] 1. A methacrylic acid alkali metal salt and / or ammonium salt having a degree of etherification of less than 2.0 is contained as a thickening and spreading agent in an amount of 1.25 to 10% by weight, and the viscosity at the time of use is 1000 at a liquid temperature of 23 ° C. A waving lotion for iron perms that is in the range of ~ 70000 CPS. 2. The waving lotion according to claim 1 is applied to hair, and after a process time of 8 to 15 minutes, the iron surface temperature is 100 to 170 ° C. and the ironing time is 8 to 25 minutes. A method for applying an iron perm, which comprises operating a hair curl to form a curl on the hair. 3. The waving lotion according to claim 1 is applied to hair, and after a process time of 8 to 15 minutes, the hair is curled or permanent curled using an iron having an iron surface temperature of 100 to 170 ° C. A method for straightening hair, which comprises straightening the hair. 4. A carboxymethylcellulose alkali metal salt and / or ammonium salt having an etherification degree of less than 2.0 is contained as a thickening and spreading agent in an amount of 1.25 to 10% by weight, and the viscosity at the time of use is 2500 to 2,500 at a liquid temperature of 23 ° C. A waving lotion for straightening hair characterized by being in the range of 100000 CPS. 5. A method for straightening curly hair, which comprises applying the waving lotion according to claim 4 to hair, and leaving the waving lotion application time for 8 to 15 minutes and the process time for 10 to 15 minutes. 6. Hair which has been curled or permanently curled using an iron at an iron surface temperature of 100 to 170 ° C. after applying the waving lotion of claim 4 to the hair and leaving it for a process time of 10 to 15 minutes. A straightening method for straightening hair.