BLEACHING COMPOSITION FOR PERMANENTLY DYED HAIR AND METHOD OF USE

• US 3,800,809 A
• Filed: 11/20/1972
• Issued: 04/02/1974
• Est. Priority Date: 11/20/1972
• Status: Expired due to Term

• Current Assignee: Andrew J. Cunningham, Fred M. Tuffile, Hosny Y. Saad, Philip Franco
• Original Assignee: Andrew J. Cunningham, Fred M. Tuffile, Hosny Y. Saad, Philip Franco
• Inventors: Tuffile, Fred M., Saad, Hosny Y., Cunningham, Andrew J., Franco, Philip
• Primary Examiner(s): Rosen, Sam
• Application Number:
  US05/307,804
• Time in Patent Office: 498 Days
• Field of Search: 8/110 424/62 132/7
• US Class Current: 132/208
• CPC Class Codes: A61K 8/23 Sulfur; Selenium; Tellurium; Compounds thereof
• CPC Class Codes: A61K 8/46 containing sulfur A61K8/44 takes precedence
• CPC Class Codes: A61Q 5/08 Preparations for bleaching the hair

Abstract

A process and composition for removing dye material from keratin fibers, such as human hair, to produce fibers having the desired color shade and which will be stable to oxidation. More particularly, a process for removing dye material, such as oxidative dyes, from human hair by subjecting the fibers to compositions containing dye reducing agents, such as metal sulfoxylate-formaldehyde, urea or thioureas, in combination with a stabilizing agent of the alkali metal bisulfate class. The treated fiber has been found to inhibit the redevelopment of the undesired color.

Claims

2. A bleaching composition according to claim 1 wherein zinc sulfoxylate-formaldehyde and urea comprise the reducing composition and are used in combination with potassium bisulfate.

3. A bleaching composition according to claim 1 wherein sodium sulfoxylate-formaldehyde and urea comprise the reducing composition and are used in combination with sodium bisulfate.

4. A bleaching composition according to claim 1 wherein zinc sulfoxylate-formaldehyde and thiourea are used in combination with potassium bisulfate.

5. A bleaching composition according to claim 1 wherein the aqueous solvent contains up to 50 percent of a C1 - C3 alkyl alcohol.

6. A process for removing at least some of the dye material from hair fibers which comprises applying to the hair fibers a preparation which comprises (1) a reducing composition comprising for each 100 parts by weight from about 90 parts to about 10 parts of at least one metal sulfoxylate-formaldehyde and correspondingly from about 10 parts to 90 parts of an agent selected from the group consisting of urea, thiourea, and C1-C3 alkylthiourea and (2) an alkali metal bisulfate in an amount of from 1/3 to 3 parts by weight per part by weight of reducing agent, said reducing composition and alkali metal bisulfate being in an aqueous solvent;

treating the hair fiber with said bleaching composition for approximately 10 minutes to 60 minutes to produce the desired color and removing the bleaching composition from the hair fiber.

7. A process according to claim 6 wherein the reducing composition is zinc sulfoxylate-formaldehyde and urea and is used in combination with potassium bisulfate.

8. A process according to claim 6 wherein the alkali metal bisulfate is potassium bisulfate.

9. A process according to claim 6 wherein the hair fiber is finally rinsed with water and then with a shampoo.