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Class Information
Number: 8/404
Name: Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers > Dyeing involving animal-derived natural fiber material (other than solely wool or silk), e.g., leather, fur, hair, feathers, etc., composition, process, or product
Description: Processes or compositions for dyeing of natural fibers derived from animals, except wool or silk or the product of such a dyeing process.










Sub-classes under this class:

Class Number Class Name Patents
8/405 Hair dyeing 1,405
8/436 Leather dyeing 138


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8152859 Colouring of keratinous fibers using a pretreatment comprising an iron salt and a colour developer comprising hydrolysable tannin Apr. 10, 2012
7896930 Process for preparing bleaching/highlighting composition and use of such compositions Mar. 1, 2011
7766978 Acidic hair dyeing method Aug. 3, 2010
7585833 Malodor covering perfumery Sep. 8, 2009
7476263 Coloring method of tangible matter having polyamide bond and tangible matter colored by such method Jan. 13, 2009
7435524 Permanent, removable tissue markings Oct. 14, 2008
7381806 Cationic azo azine dyes and colorants that contain these compounds Jun. 3, 2008
7344587 Magnetic ink tissue markings Mar. 18, 2008
7320766 Overdyeable pigmented polymeric fiber and yarns and articles made therefrom Jan. 22, 2008
7285364 Permanent, removable tissue markings Oct. 23, 2007
7204856 Shaped bodies for forming cosmetic preparations Apr. 17, 2007
7175950 Permanent, removable tissue markings Feb. 13, 2007
7033402 Transposed process for making leather Apr. 25, 2006
7002045 Ortho ester-based surfactant, its preparation and use Feb. 21, 2006
6881253 Spray binding agent for tattoo stencil Apr. 19, 2005
6869453 Reactive dye compounds Mar. 22, 2005
6814760 Permanent, removable tissue markings Nov. 9, 2004
6716969 Reactive dye compounds Apr. 6, 2004
6676710 Process for treating textile substrates Jan. 13, 2004
6652601 Agent for dyeing fibers comprising an indoline/indolium derivative Nov. 25, 2003
6558433 Process for dyeing keratin fibers comprising 1,4-diamino-2-methoxymethylbenzene and salts thereof May. 6, 2003
6528045 Process for the preparation of stable aqueous hair dyeing emulsions Mar. 4, 2003
6506372 Cosmetic compositions containing an amphoteric polymer and a fixing/conditioner polymer, and their uses Jan. 14, 2003
6443998 Trichromatic fiber dyeing processes and compositions thereof Sep. 3, 2002
6407260 Indole compound Jun. 18, 2002
6264703 Hair coloring composition using an inorganic peroxymonosulfate salt as an oxidation agent Jul. 24, 2001
6231622 Dye compositions, especially for dyeing hair, containing indane derivative compounds May. 15, 2001
6224856 Means and method for tinting keratin fibers, particularly human hair May. 1, 2001
6203578 Use of silicon compounds to dye human keratin fibers; novel compounds and compositions containing them Mar. 20, 2001
6176885 Use of silicon compounds to dye human keratin fibres; novel compounds and compositions containing them Jan. 23, 2001
6140517 Anthraquinone polysulfonamide colorants Oct. 31, 2000
6077320 Use of diiminoisoindoline derivatives or 3-aminoisoindolone derivatives for dyeing keratin fibers, and dye compositions containing them Jun. 20, 2000
6036729 Enzymatic method for textile dyeing Mar. 14, 2000
6027537 Use of silicon compounds to dye human keratin fibres; novel compounds and compositions containing them Feb. 22, 2000
5961669 Acid donor process for dyeing polyamide fibers and textiles Oct. 5, 1999
5948122 Enzymatic methods for dyeing with reduced vat and sulfur dyes Sep. 7, 1999
5948123 Coloring method for hides Sep. 7, 1999
5922085 Preparation of a dye for coloring protein-based fibers and cellulose-based materials from the oxidation products of the manufacture of a triphenylmethane dye Jul. 13, 1999
5910623 Mixtures of sulfo-containing 1:2 metal complexes with vinyl polymers Jun. 8, 1999
5888252 Processes for dyeing keratin-containing fibres with cationicazo dyes Mar. 30, 1999
5873910 Process for the two-stage oxidation dyeing of keratin fibers with a manganese complex or salt and a 4-substituted 1-naphthol, and dyeing kit Feb. 23, 1999
5817153 Method of photo-oxidative treatment of tissues containing collagen Oct. 6, 1998
5685881 Aromatic allylaminonitro compounds, hair dye compositions containing aromatic allylaminonitio compounds, and synthetic and natural fiber dyeing process Nov. 11, 1997
5585489 Water-soluble triphendioxazine compounds and their use as dyestuffs Dec. 17, 1996
5567205 Wet treatment of leather hides Oct. 22, 1996
5490865 Method of treating and dyeing animal fibers Feb. 13, 1996
5478936 Asymmetric dioxazine compounds and method for dyeing or printing fiber materials using the same Dec. 26, 1995
5468257 Process for dying leather with pigments and cationic binders Nov. 21, 1995
5466263 Process for dyeing fur skins with oxidation dyes Nov. 14, 1995
5376145 Treatments to improve the properties of keratinous textiles Dec. 27, 1994

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