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Class 8/924 - Polyamide fiber


Subclass of Class 8 - Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
Definition: Subject matter involving dyeing of polyamide fiber.
No. of patents: 536
Last issue date: 07/08/2008


1                      
NumberTitleIssue Date
7396370Method of dyeing or printing synthetic polyamide fibre materials using reactive dyes
A method of dyeing or printing synthetic polyamide fiber materials, wherein (a) the fiber material is dyed or printed with at least one reactive dye, and (b) the dyed or printed fiber material is subjected to after-treatment with a reducing agent, the fiber material...
07/08/2008
7320766Overdyeable pigmented polymeric fiber and yarns and articles made therefrom
Dyed yarns typically have inferior color fastness compared with pigmented yarns. However, dyeing offers a virtually infinite selection of colors, flexibility and more uniformity than constructions of pigmented yarns in residential carpet and other yarn applications,...
01/22/2008
7259259Reactive dyes, a process for their preparation and their use
Reactive dyes of formula (1): wherein R1, is optionally substituted C1-C4 alkyl, R2 is halogen, C1-C4 alkyl, C1-C4 alkoxy or sulfo, Z1 is a radical of formula —SO
08/21/2007
7198731Optical 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
7090704Method of treating natural or synthetic polyamide fibre materials
A method of improving the resistance of dyes on natural or synthetic polyamnide fiber materials to the action of ozone and NOx, which comprises treating the fiber material, before, during or after dyeing, with a liquor comprising a terpolymer containing s...
08/15/2006
7052521Dye composition and the use thereof
A dye composition, which comprising: a monoazo dye of the formula and a disazo dye of the formula (II) wherein R, R1, R2, R3...
05/30/2006
7048771Dyeing textiles using nanoparticles
The present invention employs the use of nanotechnology to textile coloration. The textiles so produced have good fastness and greatly reduce environmental concerns. The present invention provides nanoparticle processed textiles, formulations and methods for produci...
05/23/2006
7033403Spray dyeing of garments
A method of dyeing a fabric is provided. The method includes removing folds from the fabric, spraying a dye on a first side of the fabric, and exposing the fabric to a migration and fixation process prior to the dye drying on the first side so that the dye migrates ...
04/25/2006
6890361Modification 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
6869453Reactive dye compounds
A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one nitrogen-containing heterocycle; (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-contai...
03/22/2005
6846336Acid-resistant solutions containing aromatic formaldehyde condensation products
The present invention relates to acid-resistant solutions containing aromatic formaldehyde condensation products having sulfonate and/or carboxylate groups, aliphatic carboxylic acids, aromatic sulfonic acids, and glycol ether solvents, to the preparation thereof, a...
01/25/2005
6783560Process for preparing wetfast polyamide fibers
A modified polyamide polymer having a high amino end group content, with more than 30 percent of the amino end groups being secondary or tertiary amine, dramatically improves the dye bleed performance. The modified polyamide may be prepared by polymerization of poly...
08/31/2004
6780202Modification 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
6780205Vat acid dyeing of textile fibers
A process for dyeing certain textile fibers, utilizing vat acid dyeing and specific additional (second) reducing agents such as α-hydroxyalkylsulfinic acids, their salts and 1,2,4-trithiolane, resulting in excellent depth of shade and washfastness, is provided....
08/24/2004
6752840Denim-like article of clothing and method of producing the same
The present invention relates to a denim-like clothing mainly including a woven or knitted fabric and having a whitening index of less than or equal to Class 4, which woven or knitted fabric includes ultrafine fibers or fibers capable of forming ultrafine fibers on ...
06/22/2004
6736864Reactive dye compounds
A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one SO2C2H4 group which is attached to the chromphore moiety either directly via the sulphur atom of the SO2C2H4 group or via a linking group L; characterized in that at least one ...
05/18/2004
6699805Dyed melamine fabrics and methods for dyeing melamine fabrics
The present disclosure generally relates to dyed melamine fabrics and methods for dyeing melamine fabrics. In one arrangement, the fabrics comprise a plurality of melamine fibers, wherein the flame resistant fabric has been dyed through a beam dyeing proc...
03/02/2004
6648926Process for treating knits containing polyester bicomponent fibers
A process for improving the properties of knit fabrics containing bicomponent polyester fibers, by heat-setting the fabrics, while stretched cross-directionally, prior to dyeing, is provided....
11/18/2003
6632254Treatment of dyed nylon fibers to prevent degradation caused by ultraviolet light
The effects of ultraviolet induced damage to cationic dyeable nylon fibers dyed at a pH of about 2.5 or less with an acid dye, a premetallized acid dye or a reactive dye are arrested or attenuated by applying to the dyed fibers either before of after expo...
10/14/2003
6623534Black dye mixtures of fiber-reactive azo dyes, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-containing fiber material
Deep black-dyeing dye mixtures comprising a disazo dye conforming to the general formula (1), ##STR1## and one or more disazo dyes conforming to the general formula (2), ##STR2## wherein the amide group is in the 6, 7, or 8 position relative to th...
09/23/2003
6607563Hair dye composition
Provided is a hair dye composition containing a direct dye A--D.dbd.D--B. This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a small change in the color tone of the dye even after storage. A represen...
08/19/2003
6583273Azo dyes, process for their preparation and their use for dyeing or printing natural or synthetic materials
This invention relates to dyes of formula ##STR1## wherein R1 is hydrogen, halogen, C1 -C8 alkyl, --NH--CO--C1 -C4 alkyl or phenyl, R2 is hydrogen, halogen, C1 -C8 alkyl, C...
06/24/2003
6562741Firefighter garment outer shell fabric utilizing stock dyed melamine fiber and ring-spun yarn for making the same
A firefighter garment including melamine high-heat and flame resistant fibers that have been stock dyed to obtain a desired shade or color. The stock dyed fiber is preferably blended with another fiber and the blend spun, by ring or core spinning, into a ...
05/13/2003
6554874Method of dyeing or printing polyamide-containing materials
The present invention relates to a method for the trichromatic dyeing or printing of natural or synthetic polyamide fiber material, which method comprises using at least one blue-dyeing dye of formula ##STR1## wherein X, W, A, B, Q1, Q2
04/29/2003
6551364Dye mixtures, 1:2 cobalt complex formazan dyes and their use
Dye mixtures which comprise at least one 1:2 cobalt complex dye of the formazan compound of the formula ##STR1## in which X is substituted or unsubstituted C1 -C8 alkyl, phenyl, naphthyl, furyl or thienyl, R1 and R2
04/22/2003
6544299Water bleed inhibitor system
Colorfastness of cationic dyeable nylon fibers dyed with acid and/or premetalized acid dyes is enhanced and potential water bleed problems can also be overcome by treating the dyed fibers with an acrylic water bleed fixative in conjunction with a traditio...
04/08/2003
6544300Process for making dyed textile materials having high colorfastness, and materials made therefrom
A process for improving the colorfastness of dyed thermoplastic textile materials is described. The process involves heatsetting the materials to a temperature which minimizes the amount of semi-crystalline regions, dyeing the material and subjecting it t...
04/08/2003
6537332Reactive colorants, mixtures of reactive colorants and production and use thereof
Dyes of formula (1) ##STR1## wherein R1 and R2 are each independently of the other hydrogen or C1 -C4 alkyl, and D1 and D2 are each independently of the other a radical of formula (2) ...
03/25/2003
6533824Method for restoring original color to bleached regions of nylon carpets
A new method for spot dying nylon carpet requires no color theory nor use of a color wheel. The new method is distinguished from prior art methods primarily by the fact that the focus in on the hue of the spot at any given moment during the process, and t...
03/18/2003
6527815Garment dyeing
Textiles made of synthetic fibers and synthetic fiber blended fabrics are constructed in the form of a garment then dyed while avoiding setting permanent creases and permanent wrinkles in the garment. The process includes selecting a synthetic or syntheti...
03/04/2003
6524503Process for the manufacture of polyamide yarns dyeable in melange shades
A process for the manufacturing of a differentially dyeable yarn includes the steps of: a) producing two polymers having a different concentration of amine end-groups; b) spinning yarns from said two polymers; and c) producing a yarn by intermingling said...
02/25/2003
6497731Dyed polyamide-6 articles having improved wetfastness properties and methods of making same
Polyamide-6 articles exhibit dramatically improved dye bleed and perspiration performance characteristics, as well as reduced color change of fluorescent dyed polyamide-6. These improvements are achieved according to the present invention by modifying con...
12/24/2002
6495660Polyamide substrate
A process for making a polyamide substrate characterized by enhanced breaking strength and fade resistance is disclosed. The process features the steps of treating a polyamide substrate, preferably a nylon 6 substrate having a hindered amine light stabili...
12/17/2002
6464734Deep black dye mixtures of fiber-reactive azo dyes
The present invention claims a dye mixture comprising at least one dyestuff of the general formula (1) ##STR1## and at least one dyestuff of the general formula (2) ##STR2## where M, Y1, Y2, Y3, R1, R2
10/15/2002
6358287Mixtures of fiber-reactive dyes, preparation thereof and use thereof for dyeing fiber materials
Mixtures of fiber-reactive dyes, preparation thereof and use thereof for dyeing fiber materials The present invention relates to dye mixtures comprising one or more dyes of the general formula (I) ##STR1## and one or more dyes of the general formula (II) ...
03/19/2002
6350862Reactive dye compounds
Reactive Dye compound having formula (I) wherein: D is a chromophore group; L is a linking moiety; Q is a quaternized nitrogen derivative; X and Y are independently selected from chlorine, bromine, fluorine or hydrogen; A is selected from halogen, prefera...
02/26/2002
6319289Organic compounds
Compounds of formula (I) ##STR1## wherein A is hydrogen or a descretionary radical, a novel process for their preparation and their use for the dyeing of organic substrates....
11/20/2001
6302923Triphendioxazine compounds
Compounds of formula (I) ##STR1## with the meanings of R1, R1 ', R2, R2 ', X, X', Y, Y', m and n as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks....
10/16/2001
6296672Enzymatic method for textile dyeing
The present invention relates to methods of dyeing a material which involve contacting the material with a dyeing system which comprises: (a) a mixture of (i) an aromatic diamine and (ii) one or more of a naphthol and an aminonaphthalene and (b) an oxidat...
10/02/2001
6280482Method of treating natural or synthetic polyamide fiber materials
A method of improving the stability to ozone exposure of dyes on natural or synthetic polyamide fiber materials comprises treating the fiber material, before, during or after dyeing, with a liquor comprising a homopolymer or copolymer having structural re...
08/28/2001
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