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Hair dyeing method

A dyeing method and hair technology, which can be used in hair care, pharmaceutical formulations, cosmetics, etc., can solve problems such as difficult to say suitable and complicated hair dyeing.

Inactive Publication Date: 2013-10-09
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this technical proposal, although partial dyeing or additional dyeing of undyed hair is easy, it is difficult to say that it is difficult to dye all the hair.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Japanese males (white hair content: about 5% of the front head, about 60% of the right head, about 40% of the left head, about 10% of the back of the head) The right side of the head (average hair length 4cm) was dyed.

[0083] Hair dye: the first agent A described in Table 1, the second agent A described in Table 2

[0084] The viscosity of the whole composition after mixing the first agent and the second agent at a mass ratio of 1:1 is 15mPa·s and the pH value is 10.0

[0085] Structure A: A flexible porous material is made into a cuboid of 7×5×4 cm, and a hemispherical concave portion with a diameter of 2 cm is provided at the center of a plane of 7×5 cm. As the flexible porous material, a general color sponge product EGT-C produced by INOAC Corporation was used. The apparent density of the flexible porous material is 22kg / m 3 , The hardness is 115N.

[0086] Mix 5 g of the first agent A and 5 g of the second agent A until uniform, impregnate the entire mixture i...

Embodiment 2

[0090] Using the hair dyes and structures shown below, all hair (medium-length hair, average hair length about 15 cm) of Japanese women (white hair content: about 10% of the total hair) was dyed.

[0091] Hair dye: the first agent B described in Table 1, the second agent B described in Table 2

[0092] The viscosity of the whole composition after mixing the first agent and the second agent at a mass ratio of 1:1 is 200mPa·s and the pH value is 10.0

[0093]Structure B: A flexible porous material is formed into a spheroid whose major axis is 8 cm long and whose minor axis is 5 cm long. As the flexible porous material, SD for Everlight Cleaner manufactured by Bridgestone Co. was used. The apparent density of the flexible porous material is 28kg / m 3 , The hardness is 160N.

[0094] Add 25 g of Dose 1 B and 25 g of Dose 2 B into a 200 mL container with a lid and shake the container to mix. Structure B was impregnated with approximately one-fourth of the entire composition mixe...

Embodiment 3～6

[0116] The hair of the right head of a Japanese male was dyed in the same manner as in Example 1 except that the used structures were replaced with structures C to F.

[0117] Structure C: The flexible porous material 1 is made into a cuboid of 7×5×2 cm, and a hemispherical concave portion with a diameter of 1 cm is provided at the center of one plane of 7×5 cm. In addition, the flexible porous material 2 was made into a cuboid of 7×5×2 cm, and bonded to the cuboid made of the flexible porous material 1 with a plane of 7×5 cm.

[0118] As the flexible porous material 1, EFF, a general product of color sponge produced by INOAC Corporation, was used. The apparent density of the flexible porous material 1 is 21kg / m 3 , The hardness is 59N.

[0119] As the flexible porous material 2, ECA, a general product of colored sponge produced by INOAC Corporation, was used. The apparent density of the flexible porous material 2 is 26kg / m 3 , The hardness is 130N.

[0120] The hair dye ...

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PUM

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Abstract

Disclosed is a hair dyeing method wherein a hair dye composition having a first agent including an alkaline agent and a second agent including a oxidizing agent, wherein at least one of the first agent and second agent includes a surfactant, impregnates a structural body including a flexible porous material with an apparent density of 15 - 70 kg / m3 and a hardness of 50 - 250 N. Froth is formed by performing an operation that deforms the flexible porous material by means of the application and release of outside force thereupon, and the hair dye composition in froth form is applied to hair, allowed to sit for 3 - 60 minutes, and afterwards washed off.

Description

technical field [0001] This invention relates to methods of coloring hair. Background technique [0002] The technique of dyeing hair with a liquid or creamy hair dye composition is widely spread. In order to prevent dripping and apply a sufficient amount of the hair dye composition on the hair, use a special comb or brush to shake the sticky hair dye The compositions are applied to the hair for hair coloring. It is difficult to uniformly apply the above-mentioned hair dye composition to the hair, and techniques such as blocking, opposite mirror, etc. are required for application to the root part and the back of the head of the hair particularly. [0003] In this regard, there is known a so-called shampoo-type hair dye that dyes hair by lathering a liquid hair dye composition on the hair, but it is difficult to simultaneously satisfy the high viscosity required to prevent dripping and the low viscosity to facilitate foaming. The opposite requirement is not an appropriate m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/22A61K8/19A61Q5/10
CPCA61K8/0208A61Q5/10
Inventor 山口真主千叶哲也儿玉大辅酒井宏和宫部创
Owner KAO CORP