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7338535 |
Disclosed herein is a rapid dyeing process for human keratin fibers, such as hair, comprising applying to the keratin fibers at least one dye composition comprising, in a medium suitable for dyeing, at least one direct dye chosen from ar...
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7294152 |
The present disclosure relates to a specific direct dye compound that is a fluorindine derivative, and dyeing compositions comprising at least one derivative of the compound and at least one polymer. A process for dyeing keratin fibers w...
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7156884 |
Pro-dyes of direct dyes having an enzymatically-labile functionality, e.g. glutaramide derivatives of direct dyes of formula (I) or their physiologically acceptable salts,
are described, as well as compositions for dyeing keratinous ...
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6908491 |
A method for color-revitalizing a color tone of hair that involves applying a color-revitalizing composition to hair previously dyed with an oxidative hair dye composition. The color-revitalizing composition, which has a color determined...
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6878169 |
Provided is a hair dye composition containing a direct dye (1):
[wherein, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each represents a C 1-6 alkyl group; R 7 and R 8 each represents a hydroxy group, a C 1-6 alkyl group, a C 1-6 alko...
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6814762 |
Provided is a hair dye composition containing a direct dye (1) or (2): [wherein, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each represents a C 1-6 alkyl group; R 7 and R 8 each represents a hydrogen atom, a hydroxy group, a C 1-6 alky...
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6773463 |
The present invention relates to a fiber-dyeing agent (A) prepared by mixing two components (A1) and (A2), said agent being characterized in that component (A1) contains at least one compound of formula (I) wherein X denotes a halogen...
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6749645 |
The object of the present invention is the use of 4-nitro-2,1,3-benzoxadiazole derivatives of general formula (I) as dye in colorants for keratin fibers such as, for example, wool, silk, furs or hair and particularly human hair In for...
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6746492 |
A semipermanent hair dye composition comprising (A) a direct dye, (B) a hydrocarbon oil and (C) polyoxyalkylene-modified dimethyl polysiloxane. The semipermanent hair dye composition can uniformly dye hair without coloring the scalp and...
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6669739 |
The object of the present invention is a preparation for coloring fibers, which is prepared before use by mixing an acidic component (A1), containing at least one enamine of Formula (I)/(Ia) with a component (A2), containing a Schiff's b...
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4384869 |
A method of bleaching of certain triarylmethane dyes in aqueous systems with low concentration of hypochlorite ion, activated by the presence of bromide ion and ammonium ions. The method is particularly useful in providing a disappearing...
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4125557 |
Ketonimine dyes of the formula selected from: ##STR1## wherein X.crclbar. is a chloride, bromide, thiocyanate, sulfamate, formate, acetate, lactate, hydrogen sulfate or dihydrogen phosphate ion; and ##STR2## wherein Y is a sulfate or hyd...
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2354588 |
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2191887 |
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1972137 |
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1925178 |
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1905347 |
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1864582 |
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1799821 |
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3784599 |
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