Inhibiting color fading with layer-by-layer films
AssigneeL'oreal
InventorsDaniella Gonzalez-Toro, Jim Singer
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Abstract
The present disclosure relates to methods for inhibiting color fading in hair and for improving the color durability and stability of artificial color of hair. The methods entail forming a layer-by-layer (LbL) film on hair, and optionally forming a cationic surface layer on the LbL film. The LbL film is formed by applying a cationic silane layer on the hair and subsequently applying an anionic polymer layer on the cationic silane. Multiple cationic silane layers and anionic polymer layers can sequentially be added as desired. Finally, the LbL film may comprise a cationic surface layer.
Claims20
A method for inhibiting color fading in artificially colored hair comprising:
- (a) applying a cationic silane layer on the hair;
- and subsequently
- (b) applying an anionic polymer layer on the cationic silane layer;
- and
- (c) optionally, repeating (a) and (b) to form additional layers;
- thereby forming a layer-by-layer (LbL) film on the artificially colored hair.
A method for inhibiting color fading in artificially colored hair comprising:
- (a) applying a solution comprising 0.1 wt. % to 25 wt. % of an aminoalkoxysilane the hair and forming a cationic polymer layer on the hair;
- and subsequently
- (b) applying a solution comprising 0.1 wt. % to 5 wt. % of a polystyrene to the aminoalkoxysilane layer and forming an anionic polymer layer on the aminoalkoxysilane layer;
- and
- (c) optionally, repeating (a) and (b) to form one or more additional layers;
- thereby forming a layer-by-layer (LbL) film on the artificially colored hair.
A kit for forming a layer-by-layer (LbL) film on artificially colored hair to inhibit color fading of the artificially colored hair comprising:
- (a) an aminoalkoxysilane for forming an aminoalkoxysilane layer on the hair;
- and separately,
- (b) an anionic polymer for forming an anionic polymer layer on the aminoalkoxysilane layer.
The kit of claim 24, further comprising:
- (c) a cationic polymer for forming a cationic polymer surface layer to the LbL film.
Dependencies are inferred from the claim text.