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Methods and compositions for improving the quality and durability of color in artificially colored hair

a technology of color protection and composition, applied in the field of compositions and methods for improving the quality and durability of color in artificially colored hair, can solve the problems of color fade, muddy and dull, and achieve the effect of improving color quality and color durability, improving the quality and durability of color

Active Publication Date: 2017-11-16
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent relates to a composition and method for improving the quality and durability of artificially colored hair. The composition includes alkaline earth metal salts and hydroxy-polycarboxylic acids as a mordant (fixing agent) and chelator, respectively. By using this composition, color quality and color durability are improved in previously colored hair. The composition is applied to the hair and allowed to remain on the hair for a sufficient amount of time to carry out its functions. The hair may also be dried before application of the composition.

Problems solved by technology

Unfortunately, however, in just a few short weeks, or in some cases even less, the color begins to fade due to washing or exposure to environmental conditions.
For instance, gorgeous rich brown colors become muddy and dull, beautiful shades of blonde turn brassy, and vibrant reds do not look so vibrant anymore acquiring golden, orange or brownish tonalities not desirable to the consumer.

Method used

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  • Methods and compositions for improving the quality and durability of color in artificially colored hair
  • Methods and compositions for improving the quality and durability of color in artificially colored hair
  • Methods and compositions for improving the quality and durability of color in artificially colored hair

Examples

Experimental program
Comparison scheme
Effect test

example 1

Rinse-Off Post-Color Treatment Method

[0217]Hair swatches (from IHIP, about 1.5 grams) were colored using a commercial hair coloring product (1 g color creme / 1.5 g developer / 1 g hair) for 30 minutes to give the hair an intense auburn color. These colored hair swatches were then treated with one of the following post-color treatments.[0218]Post-color treatment with Hydroxy-Polycarboxylic Acid: The colored hair swatches were treated with 40 wt. % solution of citric acid (0.5 g solution / 1 g hair). The solution of 40 wt. % citric acid was allowed to remain on the hair at room temperature for 20 minutes, then rinsed with water for 10 seconds.[0219]Post-color treatment with Alkaline Earth Metal Salt: The colored hair swatches were treated (0.5 g solution / 1 g hair) with 50 wt. % solution of calcium chloride (CaCl2). The solution of 50 wt. % calcium chloride was allowed to remain on the hair at room temperature for 20 minutes, then rinsed with water for 10 seconds.[0220]Post-color treatment ...

example 2

Leave-On Post-color Treatment Method

[0224]Hair swatches (from IHIP, about 1.5 grams) were colored using a commercial hair coloring product (1 g color creme / 1.5 g developer / 1 g hair) for 30 minutes to give the hair an intense auburn color. These colored hair swatches were treated with one of the following post-color treatments. The colored hair swatches were treated with a solution comprising 5 wt. % citric acid and 5 wt. % calcium chloride (CaCl2) or with a solution comprising 10 wt. % citric acid and 10 wt. % calcium chloride (CaCl2) (0.5 g solution / 1 g hair).

[0225]The total change in hair color (ΔE) after shampooing 10 times was assessed based on the L*, a*, b*, values. The higher the ΔE the more the color change (more fading) compared to the initial color.

TreatmentΔE After Shampooing 10 TimesTypical Color Treatment (Control)9.1(no alkaline earth metal salt)Post-color treatment with both 5 wt. %4.3Hydroxy-Polycarboxylic Acid (citricacid) and 5 wt. % Alkaline EarthMetal Salt (CaCl2...

example 3

In-Color Treatment and Post-Color Treatment Method

[0227]Hair swatches (from IHIP, about 1.5 grams) were subjected to one of the following four treatments.[0228]Typical Color Treatment: Hair swatches were colored using a commercial hair coloring product (1 g color creme / 1.5 g developer / 1 g hair) for 30 minutes to give the hair an intense auburn color.[0229]In-Color Treatment with Alkaline Earth Metal Salt: Hair swatches were colored with the same commercial hair coloring product above, except that an alkaline earth metal salt (CaCl2) was included with the coloring composition (1 g of 30 wt. % CaCl2 / 1 g color creme / 1.5 g developer / 1 g hair). The hair was treated with the coloring composition for 30 minutes to give the hair an intense auburn color.[0230]Post-Color Treatment with Hydroxy-Polycarboxylic Acid: Hair swatches were colored using a commercial hair coloring product (1 g color creme / 1.5 g developer / 1 g hair) for 30 minutes to give the hair an intense auburn color. After colorin...

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Abstract

The present disclosure relates to methods for improving the quality and durability of color in artificially colored hair. The methods employ alkaline earth metal salts that act as a mordant (a fixing agent) with the dye and hydroxy-polycarboxylic acids, which act as chelators. The artificially colored hair is treated with a post-color treatment composition comprising one or more alkaline earth metal salts and one or more hydroxy-polycarboxylic acids. Also, the one or more alkaline earth metal salts may be incorporated into a coloring composition for coloring the hair (in-color treatment composition) and a subsequent post-color treatment composition comprising one or more hydroxy-polycarboxylic acids can be applied to the hair.

Description

FIELD OF THE DISCLOSURE[0001]The present disclosure relates to compositions and methods for providing color protection to hair, in particular, for improving the quality and durability of color in artificially colored hair. The compositions and methods employ alkaline earth metal salts that act as a mordant (a fixing agent) with a dye and hydroxy-polycarboxylic acids, which act as chelators.BACKGROUND[0002]There are many products available for changing the natural color of hair. The process of changing the color of hair can involve either depositing an artificial color onto the hair, which provides a different shade or color to the hair, or lifting the color of the hair, such as for example, from a dark brown shade to a medium brown or a light brown shade. Hair color can be changed using permanent, semi-permanent, or temporary hair coloring products.[0003]Many consumers desire a permanent color change and therefore use products containing permanent dyes. Conventional permanent hair c...

Claims

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Application Information

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IPC IPC(8): A61K8/365A61K8/20A61Q5/10
CPCA61K8/365A61K8/20A61Q5/10A61K2800/884A61K2800/4324A61K2800/51
Inventor SINGER, JIMNGUYEN, NGHI VAN
Owner LOREAL SA
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