Compositions and methods for dyeing and safe decolorizing of fibers, especially hair, and multi-part kit for repeatedly changing dyed fiber color
First Claim
1. A multi-part kit for dyeing and reductive decolorizing of fibers, said multi-part kit consisting of a first part and a second part, said first part consisting of a composition for oxidative or non-oxidative dyeing of the fibers and said second part consisting of a composition for reductive decolorizing of dyed color from the fibers, wherein said composition for reductive decolorizing of the dyed color consists essentially of a combination of at least one member selected from the group consisting of α
- -oxo-carboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids with at least one reductone;
or with at least one reductone and at least one thiol compound;
or with at least one reductone and at least one sulfite compound, or with at least one reductone and at least one thiol compound and at least one sulfite compound.
3 Assignments
0 Petitions
Accused Products
Abstract
The method for decolorizing fibers includes applying a decolorizing composition according to the invention to dyed fibers and allowing the composition to act on the fibers for a sufficient time to remove dyed color from the dyed fibers. The decolorizing composition for fibers dyed with an oxidation hair dye composition and/or direct-dyeing hair dye compounds contains a combination of one or more α-oxo-carboxylic acids and/or physiologically compatible α-oxocarboxylic acid salts with at least one reductone, or with at least one reductone and at least one thiol compound, or with at least one reductone and at least one sulfite compound, or with at least one reductone and at least one thiol compound and at least one sulfite compound. A multi-part kit for repeatedly dyeing and subsequently decolorizing fibers, especially human hair, contains both a dye composition for dyeing the fibers and the above-described composition for reductive decolorizing of the dyed fibers.
-
Citations
17 Claims
-
1. A multi-part kit for dyeing and reductive decolorizing of fibers, said multi-part kit consisting of a first part and a second part, said first part consisting of a composition for oxidative or non-oxidative dyeing of the fibers and said second part consisting of a composition for reductive decolorizing of dyed color from the fibers, wherein said composition for reductive decolorizing of the dyed color consists essentially of a combination of at least one member selected from the group consisting of α
- -oxo-carboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids with at least one reductone;
or with at least one reductone and at least one thiol compound;
or with at least one reductone and at least one sulfite compound, or with at least one reductone and at least one thiol compound and at least one sulfite compound. - View Dependent Claims (2, 3, 4, 5)
- -oxo-carboxylic acids and physiologically compatible salts of said α
-
6. A method for reductive decolorizing of fibers dyed with an oxidation dye substance and/or direct-dyeing dye compounds, said method consisting essentially of the steps of:
-
a) providing a composition for reductive decolorizing consisting essentially of a combination of at least one member selected from the group consisting of α
-oxo-carboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids with at least one reductone, or with at least one reductone and at least one thiol compound, or with at least one reductone and at least one sulfite compound, or with at least one reductone and at least one thiol compound and at least one sulfite compound;b) applying said composition for reductive decolorizing to said fibers; and c) allowing said composition to act on said fibers for a time interval of 5 to 60 minutes at a temperature of 20 to 50°
C. - View Dependent Claims (7)
-
-
8. A method for reductive decolorizing of fibers dyed with an oxidation dye substance and/or direct dyeing dye compounds, said method consisting essentially of the steps of:
-
a) providing a composition for reductive decolorizing consisting essentially of at least one reductone, or at least one reductone and at least one thiol compound, or at least one reductone and at least one sulfite compound, or at least one reductone and at least one thiol compound and at least one sulfite compound; b) applying said composition for reductive decolorizing to said fibers; c) allowing said composition to act on said fibers for a time interval of 5 to 60 minutes at a temperature of 20 to 50°
C.;d) providing a rinse composition consisting essentially of at least one α
-oxocarboxylic acid or a physiologically compatible salt thereof; ande) treating the fibers with said rinse composition. - View Dependent Claims (9, 10, 11)
-
-
12. A method for reductive decolorizing of fibers dyed with an oxidation dye substance and/or direct-dyeing dye compounds, said method consisting essentially of the steps of:
-
a) providing a composition for reductive decolorizing consisting essentially of a combination of at least one reductone, or at least one reductone and at least one thiol compound, or at least one reductone and at least one sulfite compound, or at least one reductone and at least one thiol compound and at least one sulfite compound, with at least one member selected from the group consisting of α
-oxocarboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids;b) applying said composition for reductive decolorizing to said fibers; c) allowing said composition to act on said fibers for a time interval of 5 to 60 minutes at a temperature of 20 to 50°
C.; andd) providing a rinse composition consisting essentially of at least one α
-oxocarboxylic acid or a physiologically compatible salt thereof; ande) treating the fibers with said rinse composition. - View Dependent Claims (13, 14, 15)
-
-
16. A multi-part kit for dyeing and reductive decolorizing of fibers, said multi-part kit consisting of a first part, a second part and a third part,
wherein said first part consists of a composition for oxidative or non-oxidative dyeing of the fibers; - said second part consists of a composition for reductive decolorizing of dyed color from the fibers, said composition for reductive decolorizing of the dyed color consisting essentially of at least one reductone, or at least one reductone and at least one thiol compound, or at least one reductone and at least one sulfite compound, or at least one reductone and at least one thiol compound and at least one sulfite compound; and
said third part consists of a rinse composition consisting essentially of at least one member selected from the group consisting of α
-oxocarboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids.
- said second part consists of a composition for reductive decolorizing of dyed color from the fibers, said composition for reductive decolorizing of the dyed color consisting essentially of at least one reductone, or at least one reductone and at least one thiol compound, or at least one reductone and at least one sulfite compound, or at least one reductone and at least one thiol compound and at least one sulfite compound; and
-
17. A multi-part kit for dyeing and reductive decolorizing of fibers, said multi-part kit consisting of a first part, a second part and a third part;
wherein said first part consists of a composition for oxidative or non-oxidative dyeing of the fibers;
said second part consists of a composition for reductive decolorizing of dyed color from the fibers, said composition for reductive decolorizing of the dyed color consisting essentially of a combination of at least one reductone, or at least one reductone and at least one thiol compound, or at least one reductone and at least one sulfite compound, or at least one reductone and at least one thiol compound and at least one sulfite compound, with at least one member selected from the group consisting of α
-oxocarboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids; and
said third part consists of a rinse composition consisting essentially of at least one member selected from the group consisting of α
-oxocarboxylic acids and physiologically compatible salts of said α
-oxocarboxylic acids.
Specification