JPH04178318A - Cold premanent wave lotion for hair and hair dye - Google Patents

Abstract

PURPOSE:To obtain a cold permanent wave lotion effective in preventing the hair damage caused by dyeing operation, etc., by adding a reducing agent comprising a solution mixed with a water-soluble natural sugar, etc., and a natural shellac resin to main components consisting of a thioglycolic acid and an alkaline agent. CONSTITUTION:The objective lotion can be produced by adding (A) a reducing agent comprising a solution containing (A1) one or more components selected from water-soluble natural sugar (e.g. glucose, maltose, dextran or pullulan), plasma or plasma substitute (e.g. solution of polyvinyl pyrrolidone or dextran) and (A2) shellac (a natural resin) to (B) main components composed of thioglycolic acid or its salt used as a principal component and an alkaline agent.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a treatment agent used for cold permanent waving of hair, and a hair dye also used for dyeing hair.

``Prior Art'' The widely used cold permanent wave treatment for hair uses thioglycolic acid or its salts as the main agent.

A first solution of a reducing agent consisting of an alkaline solution to which an alkaline agent has been added, and a second solution of an oxidizing agent mainly consisting of bromates are used and are treated as follows. There is. First, the first liquid is applied to the hair, the hair is wrapped around a curling iron to form the desired wave shape, and then the second liquid is used to fix the wave shape for permanent waving. There is.

That is, the alkaline agent of the first liquid swells the hair and promotes the penetration of the main ingredient thioglycolic acid into the hair. Reductively cleaves cystine bonds to make hair curly and rond. Thereafter, the second liquid is used to recombine the broken cystine bonds in their deviated state, thereby fixing the waves of the hair.

On the other hand, synthetic hair dyes are most often used for hair dyeing, and these synthetic hair dyes are divided into "first agent containing oxidation dye and alkaline agent" and "peroxide dye". The first and second agents are mixed together immediately before use.

That is, the alkaline agent such as aqueous ammonia contained in the first agent swells and softens the hair and promotes the decomposition of the hydrogen peroxide solution in the second agent. This decomposition generates oxygen from the generator to decompose the melanin pigment in the hair, and at the same time, the oxidation dye in the first agent is used to color the hair.

``Problem to be Solved by the Invention J'' The conventional cold permanent wave treatment agents described above contain an alkaline agent to promote the action of the main ingredient by swelling and softening the hair, so they have the following disadvantages: .

That is, - During the above treatment, the scale-like hair cuticle that covers the surface of the hair undergoes physical and chemical changes, resulting in peeling, damage, and discoloration of the hair cuticle, which may be the cause. As a result, the color and luster of the hair deteriorates, and the feel and combability of the hair deteriorates.

・When the main ingredient thioglycolic acid acts on the fur, it opens the keratin (protein) that is filled in the fur.
The hair matrix) is attacked by the main ingredient thioglycolic acid and alkaline agents, and the scaly hair epidermis that covers the surface of the hair is peeled off and damaged, exposing the fur.
The opening substance flows out and the moisture content of the hair decreases (approximately 11~
(from 13% to about 7% or less), this results in hair thinning and damaged hair that has lost its strength and elasticity.

・Hair has a natural recovery ability that allows damaged hair to heal naturally with oxygen in the air, but hair damaged by the above-mentioned treatment agents reduces the biological function of the hair, so this natural healing effect is diminished and lost, resulting in poor health. There is no hope that the hair will recover.

- The ammonia odor and thioglycolic acid odor during the above-mentioned treatment remain, and the characteristic odor is emitted even after the treatment.

There are various difficulties mentioned above.

On the other hand, since the above-mentioned conventional hair dyes contain an alkaline oxidizing agent, they cause damage to hair similar to cold permanent wave treatment, and the damaged hair causes premature hair coloring (approx. There is a tendency for the color to fade within 1 month).

Furthermore, the cold permanent wave treatment and hair dye treatment cannot be performed continuously in order to avoid adding to the damage to the hair, and a rest period of at least 7 to 10 days after the cold permanent wave treatment is essential.
Lack of continuity in processing. There are various difficulties mentioned above.

It is an object of the present invention to provide a treatment agent and a hair dye that overcome the drawbacks of the above-mentioned conventional techniques.

"Means for Solving the Problems" The treatment agents and hair dyes of the present invention that solve the above technical problems have the following main ingredients: thioglycolic acid or its salts, and an alkaline agent; or a cold permanent waving agent characterized in that the reducing agent is a solution containing at least one plasma substitute and shellac, a natural resin.

``The first agent is the main ingredients of oxidation dye and alkaline agent, at least one of water-soluble natural sugar, plasma, or plasma substitute, and the natural resin shellac, and the oxidizing agent is the main ingredient. A hair dye characterized by comprising a second agent.

In detail, 1. The processing agent of the present invention contains "thioglycolic acid and an alkaline agent" as main components of the conventional reducing agent.
It is characterized by a solution containing at least one of the following: ``water-soluble natural sugar or plasma or plasma substitute'' and ``some amount of natural resin shellac.'' Targets water-soluble monosaccharides, oligosaccharides, and polysaccharides made from raw materials such as glucose, maltose, dextran, pullulan (a brand name for natural polysaccharides made from starch), or corn. Monosaccharide, polysaccharide, or heteropolysaccharide alginic acid made from grains,
One or more of pectin, guar gum, chitin (chitin itself is insoluble in water, but it is made solubilized), xanthan gum, etc. is optionally used, and most preferably the maltose mentioned above is used. Furthermore, as a plasma substitute, a known solution of "polyvinylpyrrolidone" or "dextran" can be used instead of plasma.

Note that the above-mentioned shellac refers to shellac, a known natural resin that produces a resinous substance secreted by the scale insect.

The main ingredients of "thioglycolic acid and alkaline agent" include water-soluble natural sugar or plasma (or plasma substitute), which is approximately 1 to 5
A proportion within the range of 0% (wt%) and some amount of natural resin shellac are added and mixed and used as an emulsion.

Then, the treatment agent of the present invention is applied to the hair as the first reducing agent solution, and the hair is treated and wound around a curling rod, cutting and reducing cystine bonds and shifting the bonds to form the desired wave shape. After that, a second solution of the conventional oxidizing agent is applied to recombine the shifted cystine bonds and fix the wave, thereby making it possible to perform a permanent wave treatment.

Next, the above-mentioned hair dye of the present invention adds "water-soluble natural sugar, plasma, or plasma substitute" to the conventional first agent, which mainly consists of an oxidation dye and an alkaline agent, as well as the above-mentioned treatment agent. The first liquid is a mixture of at least one of the and a second agent, and immediately before use, mix the two to form an emulsion and apply it to the hair. The alkaline agent contained in the first agent swells and softens the hair, and the second agent
Promotes decomposition of the oxidizing agent in the agent to generate oxygen in the generator,
It decomposes the melanin pigment in the hair and uses oxidative dye to color the hair. In addition, the water-soluble natural sugar or plasma (or plasma substitute) to be mixed with this hair dye is in the mixed emulsion of the first and second agents.
They are mixed at a ratio in the range of approximately 1 to 50% (wt%).

In addition, as an embodiment of the present invention, a small amount of cyclodextrin (CD) is added to the above-mentioned constituent ingredients in the above-mentioned treatment agent and hair dye with the intention of eliminating the characteristic odor after cold permanent waving or hair dyeing. May be added,
Furthermore, silicon may be added to the processing agent.

"Action" The processing agent of the present invention described above contains water-soluble natural sugar or plasma (or plasma substitute) as the main component of the reducing agent, and the natural sugar has a high solidifying power, film-forming property, and adhesive property.・In addition to being excellent in polishing properties, it has physical properties such as adhesion and water retention.Also, plasma is an animal protein, and contains blood proteins such as albumin and globumin, as well as fibrinogen, and has excellent binding properties. Because it has physical properties that are extremely adaptable to the human body, the scaly hair epidermis that has undergone chemical and physical changes due to thioglycolic acid and alkaline agents is not included during the above-mentioned cutting and reduction of cystine bonds. Membrane formation of natural sugar and plasma
It is protected by various actions such as binding and adhesion, and peeling and damage are effectively prevented, and the scales that are accidentally peeled off or damaged are repaired, preserving the hair epidermis function before the treatment with the reducing agent.
As the hair recovers, the lack of opening substances in the hair epidermis that were washed away by thioglycolic acid and alkaline agents is replenished with plasma and natural sugars, which are made from animal protein and are biocompatible with humans, restoring the functions of healthy hair before treatment. It is assumed that it will be preserved and recovered.
Furthermore, the natural resin shellac added to this treatment agent forms a film due to the large amounts of natural resin content (approximately 95% or more) and wax content (approximately 1.5 to 2.5%) contained in shellac. The film becomes artificial scales and has a unique effect of protecting the restored healthy hair condition just like natural hair.

Since these effects are performed while the hair is swollen due to the alkaline agent, it is extremely effective in conjunction with the alkaline agent. You can generally keep your hair in a healthy state for a long time. On the other hand, the hair dye of the present invention, like the treatment agent, contains water-soluble natural sugar or plasma (or plasma substitute) and natural resin shellac, so it also prevents hair damage caused by hair dye treatment. In addition to preventing hair loss and maintaining a healthy hair condition, a protective film is generated on the hair epidermis and becomes artificial scales, which has the effect of stabilizing the dyed hair color for a long period of time. Furthermore, since there is no hair damage, there is an advantage that hair dyeing can be performed immediately after cold permanent waving.

Furthermore, the treatment agent and hair dye containing "cyclodextran" according to the embodiment of the present invention have the effect of enveloping the characteristic odor of alkaline agents and thioglycolic acid and preventing the generation of such characteristic odors. Furthermore, the treatment agent containing silicon has the effect of further activating the effects of natural sugar and blood plasma, thereby increasing the density and bonding strength of the hair epidermis and fur quality.

"Example" Examples will be explained below by way of example.

・First Example (Example of the above-mentioned treatment agent) Glucose, blood plasma, and natural resin shellac were added to the main components of thioglycolic acid and an alkaline agent to make a stock solution, and vegetable oil, an emulsifier, and water were added to this stock solution. No emulsion,
A solution of 7% thioglycolic acid, 5% glucose, 5% plasma, and 2.5% shellac (all percentages are by weight) at pH: 8 was used as the first reducing agent solution, and the first solution of the oxidizing agent was Cold permanent wave treatment was performed on the hair using two liquids.The results showed that there was very little peeling or damage to the epidermis of the treated hair, and the moisture content in each hair was 13%, and there was no hair thinning phenomenon. There was almost no hair loss, and the hair remained in good quality, corresponding to healthy hair protected by m-pieces. Therefore, the color and combability after treatment were good, and the conventional hair damage caused by cold permanent wave treatment was not apparent at all.

・Second Example (Example of the Hair Dye) Lupulan, a natural polysaccharide, blood plasma, and shellac, a natural resin, are added to the main components of oxidation dye and alkaline agent to produce 5% Lupulan.
The first agent is an emulsion of 5% plasma and 2.5% shellac (all percentages are by weight), and the second agent is an oxidizing agent.
The hair was dyed immediately after the cold permanent wave treatment according to the first example using a hair dye in combination with the hair dye.

The results showed that the dyed hair had almost no change from the hair immediately after the treatment in Example 1, and had a healthy appearance protected by scales, and the conventional hair damage caused by the hair dye treatment was not noticeable at all. Moreover, the dyed hair color showed no fading for a long period of 3 months, demonstrating the stability of the dyed hair color.

In addition, in the configuration of the present invention, "water-soluble natural sugar, plasma, plasma substitute, and shellac" is preferably a combination of "water-soluble natural sugar, plasma, and shellac" or "water-soluble natural sugar, plasma substitute, and shellac". , exhibits the above-mentioned effect, but it is also possible to use "a combination of water-soluble natural sugar/plasma (or plasma substitute) and shellac", and even by adding this combination, the similar effect described above can be obtained.

"Effects of the Invention" As explained above, the cold permanent waving agent and hair dye of the present invention prevent hair damage caused by cold permanent waving and hair dyeing, as well as preserve the hair functions. It recovers and generally maintains its health condition, and has extremely excellent treatment performance that stabilizes dyed hair color over a long period of time. It has a remarkable effect of eliminating discoloration. Furthermore, this permanent wave treatment and hair dye treatment can be performed continuously, which has the effect of improving treatment efficiency and convenience for non-hair treatment users.

Claims (2)

[Claims] (1) A solution consisting of the main ingredients thioglycolic acid or its salts and an alkaline agent, at least one of water-soluble natural sugar, plasma or plasma substitute, and the natural resin shellac is used as a reducing agent. A cold permanent wave treatment agent characterized by: (2) The main ingredients are an oxidizing dye and an alkaline agent, at least one of water-soluble natural sugar, plasma, or plasma substitute, and a natural resin shellac, and an oxidizing agent as the main ingredients. A hair dye comprising a second agent.