Hair relaxer and coloring system

• US 20020192175A1
• Filed: 04/18/2001
• Published: 12/19/2002
• Est. Priority Date: 04/18/2001
• Status: Abandoned Application

• Current Assignee: Manilal Patel, Melissa Nava
• Original Assignee: Manilal Patel, Melissa Nava
• Inventors: Nava, Melissa, Patel, Manilal
• Application Number:
  US09/837,405
• Publication Number:
  US 20020192175A1
• Time in Patent Office: Days
• US Class Current: 424/70.2
• CPC Class Codes: A61K 8/355 Quinones
• CPC Class Codes: A61K 8/40 containing nitrogen quinones containing nitrogen A61K8/355
• CPC Class Codes: A61K 8/4946 Imidazoles or their condensed derivatives, e.g. benzimidazoles
• CPC Class Codes: A61Q 5/04 Preparations for permanent waving or straightening the hair
• CPC Class Codes: A61Q 5/10 Preparations for permanently dyeing the hair

Abstract

A composition for straightening and relaxing hair, contains, by weight, about 0.1-10% of at least one cationic dye, about 1-7% of an alkali relaxer, about 7-25% of an emulsifier, about 10-32% of an emollient, about 5-15% of a moisturizer, about 0.5-3% of a conditioning agent and about 35-55% of water.

Claims

1. A composition for straightening and relaxing hair, comprising, by weight, about 0.1-10% of at least one cationic dye, about 1-7% of an alkali relaxer, about 7-25% of an emulsifier, about 10-32% of an emollient, about 5-15% of a moisturizer, about 0.5-3% of a conditioning agent and about 35-55% of water.

2. The composition of claim 1, wherein the conditioning agent is polymethacrylamidopropyltrimonium chloride.

3. The composition of claim 1, wherein the emulsifier is selected from the group consisting of cetyl alcohol, cetearyl alcohol, ceteareth-20, DEA-oleth-10 phosphate and mixtures thereof.

4. The composition of claim 1, wherein the alkali is selected from the group consisting of sodium hydroxide, lithium hydroxide and calcium hydroxide and mixtures thereof.

5. The composition of claim 4, wherein the alkali comprises calcium hydroxide, and the composition additionally comprises guanidine hydroxide as an activator.

6. The composition of claim 1, wherein the emollient is selected from the group consisting of mineral oil, PEG-75 lanolin and mixtures thereof.

7. The composition of claim 1, wherein the moisturizer comprises petrolatum.

8. The composition of claim 1, wherein the cationic dye is selected from the group consisting of:

(W—

NH—

Z−

X⁺) Y⁻

,(W—

N═

N—

Z−

X⁺)Y⁻

and mixtures thereof,

where Z is an optionally substituted single benzene ring or a naphthalene ring, W is an optionally substituted ring with 5 or 6 members, or a naphthalene ring, X⁺ is a quaternary ammonium group of formula (R₁R₂R₃)N⁺ where R₁, R₂, and R₃ are, independently, short chain alkyl groups with 1-4 carbons, and Y⁻

is an anion.

9. The composition of claim 8, wherein the benzene ring is substituted with at least one group selected from the group consisting of —

NO₂, —

NH₂, ═

NH, —

OCH₃, ═

O and Br.

10. The composition of claim 8, wherein Z is substituted with at least one group selected from the group consisting of —

OH and —

CH₃.

11. The composition of claim 8, wherein X⁺ is trimethyl ammonium.

12. The composition of claim 8, containing at least one dye selected from the group consisting of:

13. The composition of claim 1, which is a black dye containing a blue dye and a red dye in a blue to red weight ratio of about 3:

1 to 4;

1.

14. The composition of claim 1, which is contained in two packages for mixing before use,

wherein a first package contains a relaxer formulation comprising, by weight, about 1-7% of an alkali relaxer, about 7-25% of an emulsifier, about 10-32% of an emollient, about 5-15% of a moisturizer, about 0.5-3% of a conditioning agent and about 35-55% of water, and

a second package contains a dye formulation comprising, by weight, about 0.1-10% of at least one cationic dye, about 1-25% of an emulsifier, and about 35-60% of water.

15. The composition of claim 14, wherein the alkali relaxer comprises calcium hydroxide, and the composition additionally comprise a third package containing guanidine carbonate and water.

16. The composition of claim 4, wherein the alkali is lithium hydroxide in an amount of less than about 5% by weight.

17. The composition of claim 16, wherein the alkali is lithium hydroxide in an amount of less than about 4% by weight.

18. The composition of claim 17, wherein the alkali is lithium hydroxide in an amount of less than about 2.5% by weight.