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| Number | Title | Issue Date |
| 7220843 | Methanesulfonamide azo dyes This invention relates to monoazo, disazo and trisazo colorants of the formula (I) where M represents two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn, Zn and ... | 05/22/2007 |
| 7198731 | Optical brighteners The present invention relates to the use of compounds of formula (I) wherein all substituents are as defined in the claims as optical brighteners as well as to new mixtures of optical brighteners. ... | 04/03/2007 |
| 7074245 | Modified regenerated cellulose fiber and fiber product thereof A modified regenerated cellulose fiber which enables dyeing in different colors by combining the modified regenerated cellulose fiber and other fibers by means of mixed spinning or union knitting/weaving. The modified regenerated cellulose fiber can be obtain... | 07/11/2006 |
| 6890361 | Modification of printed and dyed materials The present invention relates to methods and compositions for removing excess dye from dyed and/or printed materials, such as, textile materials dyed with disperse dyes, by treating a dyed or printed material with an esterase. The improvements resulting form the pre... | 05/10/2005 |
| 6780202 | Modification of printed and dyed materials The present invention relates to methods and compositions for removing excess dye from dyed and/or printed materials, such as, textile materials dyed with disperse dyes, by treating a dyed or printed material with an esterase. The improvements resulting form the pre... | 08/24/2004 |
| 6547835 | Flame and shrinkage resistant fabric blends and method for making same Fabric blends of inherently flame resistant fibers and flame resistant cellulosic fibers that contain a flame retardant. According to the method of production of these blends, the inherently flame resistant fibers can be dyed a full shade of color without... | 04/15/2003 |
| 6540794 | Azo dyes, a process for their preparation and their use in the dyeing or printing of hydrophobic fiber materials The present invention relates to dyes of formula ##STR1## wherein R1 is hydrogen, bromine, chlorine, cyano, R2 is hydrogen, methyl, acetylamino, R3 is ethyl unsubstituted or substituted by cyano or by acyloxy, R4 | 04/01/2003 |
| 6200354 | Dyeing of textiles A method of dyeing cellulosic fibers or fabrics using pre-metallized acid dye by pretreating the fabric with a cationic agent having a plurality of cationic centers and optionally after treating the dyed material with a cationic polymer is disclosed. The ... | 03/13/2001 |
| 6121352 | Disperse azo dye mixtures The present invention relates to dye mixtures comprising at least one compound of the formula (I) ##STR1## and at least one compound of the formula (II) ##STR2## where the substituents are each as defined in the description part, which are ... | 09/19/2000 |
| 5981741 | Aminated acetate fiber Disclosed are aminated acetate fiber comprising acetylcellulose and one or more water-insoluble quaternary starch ether esters, said starch ether esters containing ester groups of formulae --O--CO--CH3 and/or --O--CO--C2 H5 | 11/09/1999 |
| 5972042 | Method for dyeing a material with a dyeing system which contains an enzymatic oxidizing agent Methods of dyeing a material, comprising treating the material with a dyeing system which comprises (a) one or more mono-, di- or polycyclic aromatic or heteroaromatic compounds, and (b) (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase a... | 10/26/1999 |
| 5964900 | Process for dyeing or printing cellulosic fibre materials and novel reactive dyes A process for dyeing or printing cellulosic fiber materials, which comprises using at least one reactive dye of formula ##STR1## wherein R1, R2, R3 and R4 are each independently of one another hydrogen, hal... | 10/12/1999 |
| 5948122 | Enzymatic methods for dyeing with reduced vat and sulfur dyes The present invention relates to methods for dyeing a material, comprising (a) treating the material with a dyeing system which comprises one or more reduced vat dyes and/or one or more reduced sulfur dyes; and (b) oxidizing the one or more reduced vat dy... | 09/07/1999 |
| 5938796 | Alkali system for dyeing cellulosic textiles by padding methods Cellullosic textile materials are dyed by a pad or spraying process using a solution which contains 5-100 g/l of inorganic polyphosphate and has a pH of 10-13.5.... | 08/17/1999 |
| 5931974 | Deep black dye mixtures of fiber-reactive azo dyes and use thereof for dyeing hydroxy- and/or carboxamido-containing fiber material A dye mixture comprising one or more disazo dyes composed of 1-amino-3,6-disulfo-8-naphthol as the coupling component and of two diazo components of the aniline series containing each a fiber-reactive group of the vinylsulfone series, one or more monoazo ... | 08/03/1999 |
| 5904738 | Gas-fade inhibition The invention is directed to (1) a method for increasing the color fastness of dyed textiles subject to exposure by atmospheric gases by treating said textiles with a fade-inhibiting amount of a composition comprising at least one polyalkylene imine and (... | 05/18/1999 |
| 5902355 | Method for pattern dyeing of textile fabrics containing blends of cellulose regenerated fiber A method for dying-finishing of textile fabrics which contain modified cellulose regenerated fiber capable of dyeing with cationic dyes which contains an insoluble polymer which is obtained by cross-linking a dihydroxydiphenylsulfone-sulfonate condensate ... | 05/11/1999 |
| 5902356 | Textile dye preparations The present invention relates to liquid or pulverulent textile dye preparations including one or more dispersants based on an alkoxylated and carboxylic-esterified castor oil of the general formula I ##STR1## where A, X1, X2, Z | 05/11/1999 |
| 5885307 | Dyeing articles composed of melamine fiber and cellulose fiber Melamine fibers and cellulose fiber combinations are dyed with certain dyes such that the cellulose fiber is dyed by the dyes but the melamine fiber is substantially undyed. When in fabric form, a chambray appearance is given.... | 03/23/1999 |
| 5873914 | Method for dyeing synthetic materials with vat dyestuffs A method is provided for dyeing a non-cellulosic organic material with a dye, preferably a vat dye, comprising (a) treating the material with a dye in the presence of a reducing agent and an alkali and (b) oxidising the treated material produced in step (... | 02/23/1999 |
| 5865857 | Blue to green disperse dyes for synthetic fiber material A dye of Formula (1): ##STR1## wherein: D is a group of Formula (2): ##STR2## or a group of Formula (3): ##STR3## or a group of Formula (4): ##STR4## The variables are defined in the disclosures. The dyes and dye mixtures pro... | 02/02/1999 |
| 5865858 | Aminated cellulosic synthetic fibers Aminated cellulosic synthetic fibers are produced by adding an amine-substituted cellulose derivative to a viscose or an alkali cellulose and spinning fibers by the viscose spinning process, or by adding said cellulose derivative to a cellulose solution a... | 02/02/1999 |
| 5851239 | Spin dyeing process with dyeing salts Process for preparing colored regenerated-cellulose fiber, which comprises adding a formulation comprising a cationized polysaccharide and an anionic dye to a viscose dope, an alkali cellulose or a cellulose solution and spinning fiber by a viscose spinni... | 12/22/1998 |
| 5824117 | Nitrobenzisothiazole azo dyestuff The present invention relates to the dyestuff of the formula I ##STR1## modifications of this dyestuff which are stable during dyeing, processes for the preparation thereof and their use for dyeing and printing synthetic fiber materials.... | 10/20/1998 |
| 5759212 | Process for coloring synthetic textile materials A process for coloring a synthetic textile material or fiber blend thereof which comprises applying to the synthetic textile material a dye, which is free from water solubilizing groups, carrying at least one --SO2 F group provided that the dye... | 06/02/1998 |
| 5690698 | Black dye mixtures of fiber-reactive azo dyes and their use for dyeing hydroxyl- and/or carboxamido-containing fiber material A dye mixture of azo dyes having fiber-reactive groups of the vinylsulfone series, comprising one or more navy-blue disazo dyes with the bivalent 1-amino-8-hydroxy-3,6-disulfo-naphthylene coupling component, one or more red-dyeing mono azo dyes, containin... | 11/25/1997 |
| 5660598 | Dyes A dye of Formula (1): ##STR1## wherein: D is a group of Formula (2): ##STR2## or a group of Formula (3): ##STR3## or a group of Formula (4): ##STR4## The variables are defined in the specification. The dyes and dye mixtures p... | 08/26/1997 |
| 5651794 | Dyeing of cellulose Dyed cellulosic regenerated elongate members such as fibers are produced by dyeing the regenerated members with a cationic direct dye after formation but before first drying. A method of producing the dyed elongate members comprises forming a dope contain... | 07/29/1997 |
| 5634949 | Prevention of fabric hand harshening on printing of dyeing cellulosic textiles Cellulosic textiles are printed or dyed with multiple hook reactive dyes without fabric hand harshening on using a reactive dye preparation containing 0.5 to 10% by weight of a surfactant and 0 to 10% by weight of an antifoaming agent.... | 06/03/1997 |
| 5633355 | Monoazo disperse dyes from selected (aromatic amino)propionates or selected (aromatic amino)butyrates The disperse dyes of formula I ##STR1## wherein the symbols D, K, R3-5, R10, m, z, n and Y possess the significances given in claim 1, are eminently suitable for dyeing or printing hydrophobic, fully or semi-synthetic, organic f... | 05/27/1997 |
| 5607483 | Dyed materials A method is provide for dyeing a non-cellulosic organic material with a dye, preferably a vat dye, comprising (a) treating the material with a dye in the presence of a reducing agent and an alkali and (b) oxidising the treated material produced in step (a... | 03/04/1997 |
| 5601746 | Wet-slippage of textile material and wet lubricant therefor Aqueous dispersions (D) of a wax (W) dispersed in the aqueous phase by means of a dispersant (B), wherein in (D) the wax (W) is (A) an oxidized hydrocarbon wax or a mixture of oxidized hydrocarbon waxes or a mixture or (A) and at least one non-oxidized hydrocarbon ... | 02/11/1997 |
| 5593459 | Surfactant enhanced dyeing Cationic dyes and protonated disperse and solvent dyes are solubilized by an excess (over molar equivalence) of an anionic surfactant to form dye baths and inks for paper. These materials are suitable for the dyeing and printing of cationic dye receptive ... | 01/14/1997 |
| 5565007 | Amination of rayon Modified rayon is produced by adding a modifier to a cellulose solution and spinning fibers from the solution, or by adding a modifier to an alkali cellulose solution or material, xanthating and spinning fibers by the viscose spinning process, wherein the... | 10/15/1996 |
| 5545724 | Cationically bridged tetrakisazo dyestuffs with variable couplers, their production and use The invention relates to cationically bridged tetrakisazo compounds, corresponding to formula I, ##STR1## wherein the individual symbols are defined as in claim 1, as well as residues and liquid preparations thereof. The compounds and their prep... | 08/13/1996 |
| 5542955 | Dyeing modified viscose fibers with acid or direct dyes Process for dyeing regenerated cellulose fibers, which comprises adding an amine-substituted cellulose derivative to a viscose dope or to an alkali cellulose and spinning fibers by the viscose spinning process, or adding said cellulose derivative to a cel... | 08/06/1996 |
| 5529585 | Rayon modified with polymeric amine compounds Modified cellulose fiber is produced by adding a modifier to a cellulose solution and spinning fibers from the solution, or by adding a modifier to a viscose solution and spinning fibers by the viscose spinning process, said modifier being a polymeric ami... | 06/25/1996 |
| 5505743 | Vat dyes Vat dyes obtainable by a) halogenation of dibenzanthrone with bromine in the presence of chlorosulfonic acid and of a halogenation catalyst to a bromine content from 26 to 32% by weight and a chlorine content from 1 to 5% by weight, and b) condensation of... | 04/09/1996 |
| 5498267 | Process and use of reactive disperse dyes for dyeing and printing aminated, textile cotton and cotton-polyester blend fabrics Process and use of reactive disperse dyes for dyeing and printing aminated, textile cotton and cotton-polyester blend fabrics Hydroxyl-containing materials, in particular fiber materials, such as cellulose fiber materials, which have been modified with an ... | 03/12/1996 |
| 5496707 | Assay method for hemicellulases using a colored substrate The present invention provides an assay method for hemicellulases comprising a) directly dyeing, using a reactive dye, an insoluble natural product, or a modified form of a natural fibre material; and b) adding the enzyme to the dyed product produced in s... | 03/05/1996 |
