Hair dyeing or bleaching method

Patent metadata

Field	Value
Publication number	US-10226649-B2
Application number	US-53293408-A
Country	US
Kind code	B2
Filing date	Apr 25, 2008
Priority date	Apr 27, 2007
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

The present invention is a method for hair dyeing or bleaching by discharging in a foam from a squeeze container 6 a mixed solution of a first agent A 1 and a second agent A 2 of a two-part hair dye or bleach composition to apply on the hair. In the present invention, the squeeze container which includes a container body 4 and a squeeze foamer 5 is used as the squeeze container 6 . At least one of the first agent A 1 or the second agent A 2 contains a foaming agent. The mixed solution of the first and second agents has a viscosity (25° C.) of from 1 mPa·s to 100 mPa·s. The first agent A 1 and the second agent A 2 are mixed in the container body 4 so as not to produce a foam. Squeezing is carried out with the squeeze container 6 stood upright so that the mixed solution A 3 does not reach an air induct path 12 of the squeeze foamer 5 . As a result, the mixed solution of the first and second agents of the two-part hair dye or bleach composition can be stably discharged in a fine foam using a squeeze container.

First claim

The invention claimed is:

1. A method for hair dyeing or bleaching using a two-part hair dye or bleach composition which is applied on hair comprising:
providing a solution comprising a first agent containing an alkaline agent and a second agent containing hydrogen peroxide in a container body of a squeeze container;
mixing the solution to obtain a mixed solution by moving the container body in a cycle of moving the container body from a roughly upright state to a state between an inverted state and a sideways state, and then once again returning to a roughly upright state such that the mixing does not produce a foam in the container body of the squeeze container, and the mixing of the solution is carried out by moving the container body in the cycle 1 to 15 times at a speed of 1 to 20 times per 10 seconds;
inserting a squeeze foamer at a top end of the container body of the squeeze container, the squeeze foamer comprising an air induct path, a gas-liquid mixing chamber, a foam homogenizing means and a discharge outlet;
squeezing the squeeze container to mix air in the container body with the mixed solution in the gas-liquid mixing chamber of the squeeze foamer to cause the mixed solution to foam;
discharging a foam of the mixed solution from the discharge outlet of the squeeze foamer via the foam homogenizing means, wherein
at least one of the first or second agents contains a foaming agent, and the mixed solution has a viscosity (25° C.) of from 1 mPa·s to 100 mPa·s, and
the mixed solution does not reach the air induct path of the squeeze foamer.

2. The method for hair dyeing or bleaching according to claim 1 , wherein a time required for one squeeze is in a range of from 0.5 seconds to 5 seconds.

3. The method for hair dyeing or bleaching according to claim 1 , wherein the squeeze container is squeezed to discharge the mixed solution when the squeeze container is disposed in an upright state.

4. The method for hair dyeing or bleaching according to claim 3 , wherein the squeezing is carried out while an angle formed between an upright direction of the squeeze container and a vertical direction is in a range of from 0° to 60°.

5. The method for hair dyeing or bleaching according to claim 1 , further comprising applying the foam of the mixed solution to a hairline or a parted area of hair.

6. The method for hair dyeing or bleaching according to claim 1 , further comprising applying the foam of the mixed solution to a hairline or a parted area of hair with a larger amount than other areas.

7. The method for hair dyeing or bleaching according to claim 1 , further comprising rubbing the foam of the mixed solution into hair.

8. The method for hair dyeing or bleaching according to claim 1 , wherein pH in the mixed solution is from 8 to 12.

9. The method for hair dyeing or bleaching according to claim 1 , wherein the foaming agent is a surfactant.

10. The method for hair dyeing or bleaching according to claim 9 , wherein the surfactant is at least one selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, ampholytic surfactants, and semipolar surfactants.

11. The method for hair dyeing or bleaching according to claim 1 , wherein at least one of the first agent or the second agent contains a higher alcohol.

12. The method for hair dyeing or bleaching according to claim 1 , wherein the viscosity (25° C.) of the mixed solution is from 3 mPa s to 50 mPa s.

13. The method for hair dyeing or bleaching according to claim 3 , wherein the squeezing is carried out while an angle formed between an upright direction of the squeeze container and a vertical direction is in a range of from 5° to 50°.

14. The method for hair dyeing or bleaching according to claim 1 , wherein the squeezing is carried out so that both opposing sides of the container body touch each other.

15. The method for hair dyeing or bleaching according to claim 1 , wherein a hydrogen peroxide concentration in the second agent is from 1 mass % to 9 mass %.

16. The method for hair dyeing or bleaching according to claim 7 , wherein the hair is washed 3 to 60 minutes after rubbing the foam into the hair.

17. The method for hair dyeing or bleaching according to claim 1 , further comprising applying the foam of the mixed solution to all the hair.

Assignees

• Fujinuma Hiroyuki
• Okada Kazuhiro
• Koshika Tomohito
• Yamamoto Mitsuhiko
• Kao Corp

Inventors

• Fujinuma Hiroyuki
• Okada Kazuhiro
• Koshika Tomohito
• Yamamoto Mitsuhiko

Classifications

• A61K8/22

  Peroxides; Oxygen; Ozone · CPC title

• B05B11/043

  designed for spraying a liquid (B05B11/046 takes precedence) · CPC title

• A61K2800/87

  Application Devices; Containers; Packaging · CPC title

• A61Q5/10

  Preparations for permanently dyeing the hair · CPC title

• B05B7/0037

  including sieves, porous members or the like · CPC title