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Hair-coloring compositions, aerosol products, and methods for coloring hair

a technology of compositions and aerosol products, applied in the direction of hair cosmetics, toilet preparations, pharmaceutical active ingredients, etc., can solve the problems of difficult to achieve dark shades, messy and time-consuming process, and difficulty in producing dark shades, so as to improve the color deposition and intensity of direct dyeing, improve the effect of color deposition and intensity of hair

Active Publication Date: 2020-04-30
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent is about a new hair coloring product that can be sprayed onto hair. The product contains direct dyes, which are normally thought of as fading quickly. However, this patent shows that by using more water and less ethanol, the color sticks to hair better and doesn't fade after multiple washings. The product is easy to use, works quickly, and is particularly effective.

Problems solved by technology

However, each attempt has its drawbacks.
However, the same strong binding force to the cuticle also prevents the chromophores from penetrating deep into the cortex of hair, because it is difficult for dyes with multiple positive charges to diffuse through negatively charged networks of keratin proteins.
Additionally, since polycationic dyes remain bound to the hair surface rather than penetrating into the fiber, it is difficult to produce dark shades, due to limited binding sites on the surface of hair.
This process can be messy and time consuming.

Method used

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  • Hair-coloring compositions, aerosol products, and methods for coloring hair
  • Hair-coloring compositions, aerosol products, and methods for coloring hair
  • Hair-coloring compositions, aerosol products, and methods for coloring hair

Examples

Experimental program
Comparison scheme
Effect test

embodiments

[0288]In certain embodiments, the instant disclosure relates to a hair coloring composition comprising:[0289](a) about 0.01 to about 15 wt. %, preferably about 0.05 to about 10 wt. %, more preferably about 0.1 to about 5 wt. % of at least one direct dye selected from nitro-phenylenediamines, nitro-aminophenols, azo dyes, anthraquinones, triarylmethane dyes, indophenols, and a mixture thereof;[0290](b) about 0.1 to about 25 wt. %, preferably about 1 to about 15 wt. %, more preferably about 1 to about 8 wt. % of at least one nonionic film forming polymer for example, film forming polymers selected from polyalkyloxazolines; vinyl acetate homopolymers; vinyl acetate copolymers; homopolymers and copolymers of acrylic esters; copolymers of acrylonitrile and a nonionic monomer; styrene homopolymers; styrene copolymers (for instance copolymers of styrene and of an alkyl (meth)acrylate; copolymers of styrene, of alkyl methacrylate and of alkyl acrylate; copolymers of styrene and of butadiene...

example 1

Inventive Aerosol Hair-Coloring Products

[0321]

AB(wt. %)(wt. %)INCI USRedRedDirect DyesBASIC RED 51 &≤1≤1BASIC YELLOW 87Nonionic Film FormerVP / VA COPOLYMER2PVP0.3Thickening AgentPOLYACRYLATE-30.20.2(anionic)EthanolALCOHOL DENAT.16.316.3WaterWATER45.647.3SiliconesDIMETHICONE & BIS-0.50.5PEG / PPG-14 / 14DIMETHICONEFillerXYLOSE0.010.01MiscellaneousSALTS, PH≤2≤2ADJUSTERS,BUFFERING AGENT,PRESERVATIVES, ETC.PropellantDIMETHYL ETHER3535

example 2

Influence of Water / Ethanol—Color Uptake

[0322]

CDEFGH(wt. %)(wt. %)(wt. %)(wt. %)(wt. %)(wt. %)INCI USRedRedRedMagenta MagentaMagentaDirect DyesHC BLUE NO. 15 &≤1≤1≤1BASIC RED 51BASIC YELLOW 87 &≤1≤1≤1BASIC RED 51NonionicVP / VA COPOLYMER333333Film FormerThickeningHYDROXYETHYL-0.50.50.50.50.50.5AgentCELLULOSE(nonionic)EthanolALCOHOL DENAT.2537.5502537.550WaterWATER705845715846SiliconeDIMETHICONE &0.80.80.80.80.80.8BIS-PEG / PPG-14 / 14DIMETHICONEFillerXYLOSE0.020.020.020.020.020.02Misc.SALTS, PH≤2≤2≤2≤2≤2≤2ADJUSTERS,BUFFERING AGENT,PRESERVATIVES,ETC.

[0323]Testing was carried out to determine the influence of water and ethanol on color uptake. Compositions C, D, and E are red coloring compositions (juice) that are identical except for the amounts of ethanol and water. Composition C includes 25 wt. % of ethanol (and 70 wt. % of water), Composition D includes 37.% wt. % of ethanol (and 58 wt. % of water), and composition E includes 50 wt. % of ethanol (and 45 wt. % of water). Compositions F, G...

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Abstract

The present disclosure relates to hair-coloring compositions comprising direct dyes, and aerosol hair-coloring products comprising the hair-coloring compositions. The hair-coloring compositions include: (a) at least one direct dye selected from nitro-phenylenediamines, nitro-aminophenols, azo dyes, anthraquinones, triarylmethane dyes, indophenols, and a mixture thereof; (b) at least one nonionic film forming polymer; (c) at least one thickening agent; (d) at least 40 wt. % of water, based on the total weight of the compositions; and (e) 40 wt. % or less of ethanol, based on the total weight of the composition. The hair-coloring compositions can be combined with a propellant and incorporated into a canister to provide a hair-coloring aerosol product. The compositions and aerosol products are useful for coloring hair.

Description

FIELD OF THE DISCLOSURE[0001]The present disclosure relates to water-based direct dye compositions that quickly and effectively color hair; and to methods for coloring hair.BACKGROUND[0002]There are many methods and products available for changing the natural color of hair. Semi-permanent or temporary dyeing methods, or direct dyeing methods, temporarily change the color of hair. These methods can change the color of the hair to varying degrees and the color change may withstand several rounds of shampooing. Many consumers seek more permanent results, and therefore default to oxidative dye products that contain hydrogen peroxide or other oxidants. In order to provide the consumer with the shade, longevity, and the intensity of color desired, an oxidative coloring process is utilized. Permanent hair dyeing formulations typically include primary intermediates (also known as oxidative hair dye precursors or developers) and couplers (also known as color modifiers or secondary intermedia...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K8/04A61Q5/10A61K8/81A61K8/33A61K8/49A61K8/41
CPCA61Q5/10A61K8/4946A61K2800/4324A61K2800/594A61K8/8182A61K8/046A61K8/411A61K8/4926A61K8/33A61K2800/87A61K8/8176A61K8/8152A61K8/34A61K8/355A61K8/37A61K8/413A61K8/415A61K8/731A61K8/8117A61K8/817A61Q5/065
Inventor MACHOVER, SARAH BARRIE
Owner LOREAL SA
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