JPS6317806B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an aerosol used for hair coloring for beauty purposes, and relates to an aerosol that is sprayed to temporarily color hair. A color aerosol for hair is provided.

[Conventional technology] Temporary coloring of hair is commonly used to dye gray hair for the first time or to partially dye hair, but in recent years, methods that emphasize the fashionability of hair by coloring them in unusual colors have also been widely used. ing. In the coloring method for temporarily coloring hair, the most suitable method is to spray the washing liquid as an aerosol-like mist. Color aerosols are commercially available.

[Problems to be Solved by the Invention] By the way, in the above-mentioned commercially available color aerosol, the coloration after application to hair is extremely unclear, especially for Japanese black hair, and the formulation of the ingredients is This has the disadvantage that the unsuitably colored hair has a stiff, wire-like or scouring-like appearance, for example. In addition, with products formulated to make the coloration clearer after application, the colored hair will not only become powdery due to the large amount of pigments used as coloring agents, but also the coloring agent will fall off due to friction. It has disadvantages such as discoloration on clothes etc.

On the other hand, the color aerosol for hair coating of the present invention has a clear coloring after hair coating, and the colored hair has the unique luster of hair, and the coloring agent in the colored hair is free from friction and sweat. It has the following characteristics: it is difficult to fall off due to factors such as rain, it does not cause extreme stiffness to colored hair, and the coloring of colored hair is erased by washing with hot water.

[Means for Solving the Problems] The color aerosol for hair coating of the present invention is composed of a stock solution containing a coloring agent, mica, a binder resin, a softener, and a solvent, and a propellant. , mica, colorant, and binder resin in the stock solution are mica:colorant in a ratio of 40:60 to 90:10,
Binder resin: (colorant + mica) 0.6~
It is regulated at a ratio of 2.5:1.

The coloring agent in the color aerosol for hair coating having the above structure is a pigment or dye, and is often used as a combination coloring agent consisting of two or more types of coloring agents so as to obtain a predetermined coloration.

The mica in the color aerosol for hair coating is natural mica such as muscovite, biotite, and sericite, and processed mica such as titanium mica, and the processed mica includes coloring elements such as iron, copper, and cobalt. Mica coated with a thin film, chelated with aluminum hydroxide to make it easier for dyes and pigments to adhere, and even vapor-deposited colored substances are used. In the color aerosol for hair coating of the present invention, it is calculated as a coloring agent in its composition components.

Furthermore, the binder resin in the color aerosol for hair coating functions as an adhesive to fix the colorant, mica, and softener in the color aerosol to the hair. After the color aerosol is applied, that is, after hair is painted, it prevents the colorant from transferring to clothing and prevents the colorant from falling off due to rain or sweat, and on the other hand,
It has the properties of a color aerosol for hair coating, so-called temporary dyeing, in which the colorant is completely removed by washing with warm water. The binder resin suitable for achieving the above effect is similar to the binder resin in conventional color aerosols for so-called temporary dyeing, and is not dissolved by moisture such as sweat or rain. Synthetic resins that can be completely washed away with hot water, such as polymers (including partially saponified or added ones) of methacrylic acid, acrylic acid, carboxylic acid, vinyl acetate, vinyl alcohol, vinyl pyrrolidone, etc. Ethyl cellulose, nitrocellulose,
Semi-synthetic resins such as ester gum, benzoin gum,
Natural resins such as Karaya gum and Dharman gum are used.

In addition, the softener in the color aerosol for hair coating serves to maintain the natural suppleness of the hair itself after the color aerosol for hair coating is applied. This is to prevent The softener is selected to be one that dissolves in the solvent and does not volatilize at room temperature. For example, those having a hydroxyl group in the molecule such as propylene glycol, glycerin, polyethylene glycol, and sorbitol are preferred, as well as other oils, fats, and silicones. etc. can also be used as fabric softeners in small amounts.

As described above, the stock solution in the hair color aerosol of the present invention contains a colorant, mica, a binder resin, a softener, and a solvent, and the mica:colorant ratio in the stock solution is 40:60 to 90. :10, Binder resin: (coloring agent + mica) is 0.6 to 2.5:
It is within the range of 1.

The reason why the ratio of mica to colorant in the stock solution of the color aerosol for hair coating is specified to be 40:60 to 90:10 is because of the relationship between the luster and saturation of colored hair. When mica accounts for 40% or more of the coloring agent, the hair will have good shine, and
When mica accounts for 10 to 90% of the total amount of mica (atmosphere + coloring agent), the coloring of the hair becomes clear. Also,
Similarly, the binder resin in the stock solution of the hair color aerosol: (coloring agent + mica) is 0.6~
The reason for 2.5:1 is the degree of discoloration of colored hair, i.e., the difficulty of removing the coloring agent caused by friction, etc., and the degree of residual color of similarly colored hair, i.e., the degree of color retention of colored hair, i.e., the degree of color retention of colored hair after hair washing. This is due to the difficulty of removing the colorant due to the binder resin/(colorant + mica) in the range of 0.6 or more, the colorant in the colored hair is extremely unlikely to transfer to other areas. , and in the range of binder resin/(coloring agent + mica) of 2.5 or less, colored hair can be returned to its original state by washing, that is, the coloring agent can be completely washed away. It is.

This relationship will be explained based on experimental results with reference to the drawings.

The basic composition of the stock solution used in the experiment was (1) silicone 3.0% by weight (2) polyoxyethylene nonyl ether
0.2% by weight (3) Glycerin 0.2% by weight (4) Sesame oil 1.0% by weight (5) Mica powder (k)% by weight (6) Red No. 405 (l)% by weight (7) Silicic anhydride (m)% by weight (8 ) Binder resin (n) weight % (9) Denatured alcohol 55.6 weight % Total 100.0 weight % First, binder resin (n) in the stock solution in the hair coating aerosol was kept constant at 10 weight %, and coloring was performed. The ratio of Red No. 221 and silicic anhydride is 9:1, mica (k)/(Red No. 405 + silicic anhydride).
Prepare aerosols for hair coating with various ratios of
Black human hair bundle (length 12cm, weight 2.5g, 2 tips)
This was carried out by spraying approximately 0.25 g of color aerosol for hair coating onto the hair (tied at the cm position). The relationship between the ratio of mica:coloring agent in the aerosol and the luster exhibited by the colored hair when black hair is worn with the aerosol for hair coating is shown in Figure 1, and similarly, the mica:coloring agent in the aerosol The relationship between the ratio of pigments and the saturation of colored hair is shown in FIG. In Figure 1, it is clear that the gloss increases rapidly when mica is blended at 40% or more.
It is clear that clear color saturation can be obtained within the range of 10 to 90%. The luster of the colored hair was determined by measuring the reflectance with a reflex meter, and the saturation was determined with a color meter.

Next, in the basic formulation, mica powder (k) 90:
Coloring agent (l + m) was kept constant at 10, and hair was sprayed and colored in the same manner as above using hair coating aerosols with various binder resins/(mica + coloring agent), and dried for 1 hour. (degrees) and residual color (degrees) were measured. Color transferability (PC) is measured by sandwiching a colored hair bundle between white cotton cloth, pulling out the hair bundle with a weight of 10 g/cm ² applied, and measuring the color attached to the white cotton cloth using a color meter. death,
It is expressed by the color difference ΔE between it and white cotton. In addition, the degree of residual color (WC) is 5% for colored hair bundles.
The hair was immersed in an ABS cleaning solution for 5 minutes and then rinsed 5 times in hot water at 40°C, then measured using a color meter and expressed as the color difference ΔE from the hair strand before coloring. Color change degree (PC) and residual color degree (WC) are both color difference △E
It has been confirmed that it is almost impossible to judge with the naked eye when 0.5 or less, so from the results shown in Figure 3 above, the binder resin: (mica + colorant) is 0.6 or more is sufficient, and in terms of residual color, binder resin:
It is sufficient if (mica + colorant) is 2.5 or less.

[Example] Next, the specific structure of the color aerosol for hair coating of the present invention will be explained with reference to Examples.

Example 1 Composition of stock solution (1) Methylphenylpolysiloxane 0.2% by weight (2) Nonionic surfactant 0.2% by weight (3) Glycerin 0.2% by weight (4) Rubber oil 0.4% by weight (5) Titanium mica 15.0% by weight % (6) Titanium oxide 1.0% by weight (7) Phthalocyanine blue 1.8% by weight (8) Binder resin (*) 12.6% by weight (9) Fragrance 0.2% by weight (10) Ethanol (99.5%) 68.4% by weight (*) Manufactured by Mitsubishi Yuka Co., Ltd.: Yucaformer mica: Coloring agent = 84.3: 15.7 Binder resin / Coloring agent + Mica = 0.71 [(Note) Since the amount of titanium used for surface treatment in titanium mica is small, the weight in the composition is It can be ignored. ] 35 parts by weight of the stock solution having the above composition and 65 parts by weight of fluorocarbon (propellant) were filled into an aerosol can to produce a color aerosol for hair coating, which is an embodiment of the present invention.
I got it.

When the hair color aerosol [ ] was applied to black hair, it developed a beautiful deep blue color with a scaly shine.

Example 2 Composition of stock solution (1) Silicone resin 0.5% by weight (2) Polyethylene glycol 1500 0.2% by weight (3) Stearic acid 0.2% by weight (4) Polyoxyethylene nonyl phenyl ether
0.4% by weight (5) Mica (surface treatment) powder (※※) 10.0% by weight (6) Iron oxide 0.1% by weight (7) Brilliant first scarlet
3.0% by weight (8) Benzine Yellow G 1.0% by weight (9) Yellow No. 201 0.5% by weight (10) Polyacrylalkanolamine (*)
14.6% by weight (11) Fragrance 0.2% by weight (12) Denatured ethanol (99.5%) 73.0% by weight (※) Manufactured by Mitsubishi Yuka Co., Ltd.: Yukafoam Clear (resin for binder) (※※) Surface-treated mica The mica was treated with 1% by weight of iron oxide, and the weight of the iron oxide was calculated as a pigment.

Mica: Coloring agent = 68.5: 31.5 Binder resin/Coloring agent + Mica = 1 Fill an aerosol can with 40 parts by weight of the stock solution having the above composition, 7.2 parts of LPG (propellant), and 52.8 parts of CFC (propellant), A color aerosol for hair coating [], which is an example product of the present invention, was obtained.

When the above color aerosol for hair coating [ ] was sprayed on black hair, it was colored in a beautiful red color with rich luster.

Furthermore, when the colored hair was rubbed with a white cotton cloth, there was only a trace amount of coloration on the cloth, and when the colored hair was shampooed with hot water, the coloration completely disappeared.

Example 3 Composition of stock solution (1) Silicone resin 0.1 part by weight (2) Polyoxyethylene coconut oil fatty acid 0.2 part by weight (3) Triethanolamine 0.1 part by weight (4) Carbanal wax 0.2 part by weight (5) Setanol 0.2 part by weight ( 6) Squalene 0.1 part by weight (7) Mica 2.0 part by weight (8) Carbon black 1.25 part by weight (9) Red No. 404 0.25 part by weight (10) Yellow No. 205 0.55 part by weight (11) Silicic anhydride 0.1 part by weight (12) Methacrylic acid polymer 5.55 parts by weight (13) Methanol (99.5%) 62.6 parts by weight (14) Ethyl acetate 26.8 parts by weight Mica: Coloring agent = 48.2: 51.8 Binder resin/coloring agent + mica = 1.34 88 g of stock solution with the above composition and Freon (propellant)
122 g of the aerosol was filled into an aerosol can to obtain a color aerosol for hair coating [ ] which is an example of the present invention.

When the color aerosol for hair coating [] was applied to black hair, it was colored brown with excellent gloss. Also, when I sprayed it on black hair mixed with gray hair,
It was colored brown in the same manner as when it was applied to black hair, and no color spots due to the difference between black hair and gray hair before coloring were observed.

Example 4 Composition of stock solution (1) Polyoxyethylene cetyl ether
4.0 parts by weight (2) Lanolin alcohol 1.0 parts by weight (3) Polyethylene glycol 1500 2.0 parts by weight (4) Sericite 4.0 parts by weight (5) Polyvinylpyrrolidone 4.5 parts by weight (6) Polypropylene glycol alginate ester 1.0 parts by weight (7) Banza Orange 0.4 parts by weight (8) Carbon black 4.0 parts by weight (9) Fragrance 0.4 parts by weight (10) Paraoxybenzoic acid ester 0.2 parts by weight (11) Brucine denatured alcohol (95%) 41.0 parts by weight (12) Water 37.5 parts by weight Mica : Coloring agent = 47.6: 52.4 Binder resin/coloring agent + mica = 0.65 90 parts of stock solution with the above composition and 10 parts of LPG (propellant)
A color aerosol for hair coating [ ], which is an example product of the present invention, was obtained by filling an aerosol can.

When the color aerosol for hair coating [] was applied to brown hair, the hair was colored black. The colored hair had an appropriate level of luster, and when the colored hair was rubbed with a white cotton cloth, no coloring was observed on the cotton cloth. Furthermore, when the colored hair was shampooed with warm water, the coloring completely disappeared.

[Operations and Effects of the Invention] The color aerosol for hair coating of the present invention is filled with a stock solution containing a coloring agent, mica, a binder resin, a softener, and a solvent, and a propellant. Moreover, the ratio of mica to coloring agent in the above stock solution is 40:60 to 90:10, and binder resin:
(Coloring agent + mica) is adjusted within the range of 0.6 to 2.5:1.

Therefore, since the color aerosol for hair coating of the present invention contains mica together with the coloring agent in its composition, when a color aerosol for hair coating that does not contain mica is applied to hair, The colorant deposits between the folds of the epicutecule, which affects the black color of the hair, resulting in insufficient color development (coloration), whereas mica deposits on the hair surface and causes the hair to become black. This has the effect of concealing the black color of the hair, and since the colorant adheres to the upper surface of the hair, it has the effect of making the coloration clearer after application.

Further, the mica in the color aerosol for hair coating of the present invention has a flat shape and has a property that the broken surface of the mica clings to the hair cuticle scales, so that it does not deposit on the hair surface. Easy and
Due to the interference of light and reflected color, it exhibits a luster similar to the scales of a butterfly or the wet feathers of a crow, so when combined with a coloring agent, beautiful colors can be obtained.

Furthermore, in the color aerosol for hair coating of the present invention, since the ratio between the mica and the coloring agent is within a specific range, it has an excellent effect on the luster and saturation of colored hair. is played.

Furthermore, in the color aerosol for hair coating of the present invention, the ratio of binder resin: (mica + coloring agent) is within a specific range, so
The hair to which the color aerosol is applied does not become powdery and there is no discoloration from the colored hair, and furthermore, the colored hair completely returns to its pre-coloring state with ordinary shampoo, that is, it is completely washed away with hair washing. This effect is produced.

Furthermore, since the color aerosol for hair coating of the present invention contains a softening agent in its ingredients, colored hair is prevented from becoming stiff like a wire or scrubbing brush, and it has a natural appearance. It also has the effect of maintaining suppleness.

[Brief explanation of the drawing]

Figure 1 is a graph showing the relationship between the mica:pigment ratio in a color aerosol for hair coating and the gloss of colored hair, and Figure 2 is a graph showing the relationship between the mica:pigment ratio in a color aerosol for hair coating and the gloss of colored hair. Figure 3 shows the relationship between the ratio of binder resin: (mica + colorant) in color aerosol for hair coating and the color difference in the degree of discoloration of colored hair, and It is also a graph showing the relationship between residual color and color difference.

Claims (1)

[Claims] 1. A hair color aerosol filled with a propellant and a stock solution containing a colorant, mica, a binder resin, a softener, and a solvent, and in which the ratio of mica to colorant in the stock solution is 40:60 to 90. :10, a color aerosol for hair coating, characterized in that the ratio of binder resin: (coloring agent + mica) is 0.6 to 2.5:1.