Synthetic Polyamide Patents (Class 8/531)
  • Patent number: 5509940
    Abstract: The present invention provides a process for dyeing hydrophobic polymer fibers, including the step of contacting the goods with an amount of a dyeing solution effective to dye the goods, wherein the solution comprises an amount of a terpene/terpenoid solvent and a dyestuff. The present invention also provides a composition for dissolving and dispersing a dyestuff for dyeing hydrophobic polymer fibers, including effective amounts of a terpene/terpenoid solvent for dissolving the dyestuff.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: April 23, 1996
    Assignee: Arrow Engineering, Inc.
    Inventors: Jack J. Zbar, Robert B. Collier, Philip G. Carlson
  • Patent number: 5487936
    Abstract: A woven fabric is made of warp threads and weft threads. The warp threads have a different composition than the weft threads and at least one of the warp threads or weft threads is comprised of a multifilament fibre. The fabric is colored after it is manufactured by preferentially coloring the warp threads with a dyestuff which is preferentially taken up by the warp threads, but substantially repelled by the weft threads, and a different dyestuff which is preferentially taken up by the weft threads and substantially repelled by the warp threads. The resulting fabric can exhibit the shot silk effect.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: January 30, 1996
    Assignee: Collier Campbell Ltd.
    Inventor: Susan J. Collier
  • Patent number: 5462565
    Abstract: The new process for dyeing polyamide fibers with acid dyestuffs, in which small amounts of metal salts are added to the dyebath, gives dyeings having improved lightfastness.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: October 31, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Rohr, Martin Riegels, Sylvia Lohmann
  • Patent number: 5446136
    Abstract: Pyrazole azo dyestuffs of the formula (I) ##STR1## in which R.sup.1 denotes hydrogen or an acyl radical,R.sup.2 denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl or a heterocyclic radical which is optionally bonded via alkylene,R.sup.3 denotes hydrogen, halogen, alkyl or alkoxy,R.sup.4 denotes hydrogen, halogen, hydroxyl, amino, nitro, cyano, alkyl, alkoxy, acylamino, acyloxy or alkoxycarbonyl,R.sup.5 and R.sup.6 independently of one another in each case denote hydrogen, alkyl, aralkyl or aryl orNR.sup.5 R.sup.6 together denotes a hydrogenated heterocyclic radical which is bonded via the nitrogen and optionally contains further hetero atoms,it being possible for all the alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy and heterocyclic radicals present to be optionally substituted by nonionic substituents, a novel process for their preparation and their use for dyeing and printing materials.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: August 29, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kerstin Pape, Horst Berneth
  • Patent number: 5445653
    Abstract: A method of dyeing nylon, particularly cationic dyeable Type 6 and 66 nylon and light dyeable Type 66 nylon, so that the dyed fiber will resist taking on further dye and will have a high degree of wash and bleed fastness when the dyed fiber is subjected to a further high temperature aqueous dye bath. The method includes providing a bifunctional dye solution having a very low pH, i.e. no higher than 1.5. The dye is applied to the fiber with a degree of wet pick-up exceeding 100% by weight of the fiber. The fiber is then steamed, washed, and dried, and contacted by an alkaline solution, such as a trisodium phosphate solution. Thereafter, the fiber is autoclaved. Such a dyed nylon fiber can be combined with an undyed nylon fiber to produce a textile product.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: August 29, 1995
    Assignee: Rossville Yarn, Inc.
    Inventors: Robert R. Hixson, Randy J. Rawlston, Hobert C. Sweatman
  • Patent number: 5389110
    Abstract: Azo dyes useful for dyeing natural or synthetic substrates have the formula ##STR1## where n is from 1 to 4,q is 1 or 2,L.sup.1 is hydrogen or C.sub.1 -C.sub.3 -alkyl,L.sup.2 is acetyl, carbamoyl or hydroxysulfonyl, andD is the radical of a diazo component.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: February 14, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes P. Dix, Bernd Hupfeld, Gunther Lamm, Helmut Reichelt
  • Patent number: 5294231
    Abstract: A process for dyeing a mixed fibre substrate with at least one disperse dye and at least one metal complex dye selected from direct dyes and reactive dyes characterized in that dyeing is carried out in the presence of a compound of formula I ##STR1## in which X is --S--, --O--, or --NH--;R.sub.1 is hydrogen, --OH or C.sub.1-4 alkyl; andR.sub.2 is hydrogen, NH.sub.4 or an alkali metal (such as Na or K).
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: March 15, 1994
    Assignee: Sandoz Ltd.
    Inventor: Francis Palacin
  • Patent number: 5250079
    Abstract: A process for the treatment of fibrous material from aqueous medium in the presence of an application assistant (P) comprising components (a) and (b), in particular for nitrogen-containing substrates; the compositions (P), (P.sub.1) and (P.sub.2) and compositions comprising (P) and anionic dye or optical brightener.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: October 5, 1993
    Assignee: Sandoz Ltd.
    Inventor: Hans-Peter Baumann
  • Patent number: 5248314
    Abstract: The present invention relates to a process for the HT dyeing of polyester or polyester-containing textile materials at pH 8 to pH 11, characterised in that one or more monoazo dyes are used of the general formula I ##STR1## where Hal is chlorine or bromine,R is alkyl of 3 to 7 carbon atoms, andR.sup.1 and R.sup.2 are each independently of the other linear alkyl of 2 to 5 carbon atoms or allyl.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: September 28, 1993
    Assignee: Hoechst Mitsubishi Kasei Co.
    Inventor: Ulrich Buhler
  • Patent number: 5223000
    Abstract: Mixtures of different oligomer compounds of formula (1) are suitable for use as direct dyes for dyeing and printing a wide range of materials, especially cellulose fibers, to give dyeings and prints of good all-round fastness properties: ##STR1## wherein R.sub.1 is hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl, R independently has the meaning of R.sub.1 or is an unsubstituted or substituted heteroaryl radical or a radical of formula ##STR2## wherein R.sub.4 is unsubstituted or substituted alkyl, cycloalkyl, aryl, aralkyl or heteroaryl, A is an unsubstituted or substituted alkylene, cycloalkylene, arylene or aralkylene radical, X is --O--, --S-- or --N(R.sub.5)--, wherein R.sub.5 is hydrogen or unsubstituted or substituted alkyl, cycloalkyl, aryl or aralkyl, or wherein the group ##STR3## is an unsubstituted or substituted heterocyclic radical, Y is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, sulfo, carboxy, carbamoyl, N-mono- or N,N-di-C.sub.1 -C.sub.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: June 29, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Urs Lauk
  • Patent number: 5215545
    Abstract: Poly(m-phenyleneisophthalamide) fabrics are printed and optionally flame retarded in a two-step process in which the dye diffusion promoting agent N-octyl-2-pyrrolidone optionally with a flame retardant is applied following by printing and print fixation.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: June 1, 1993
    Assignees: Burlington Industries, Inc., ProChroma Technologies, Inc.
    Inventors: Barbara J. Cates, Phillip H. Riggins, David R. Kelly
  • Patent number: 5211720
    Abstract: Thermoplastic fabrics are flame retardant treated and optionally heatset and/or simultaneously dyed in a heated flame retardant liquid in which a disperse or acid dye may be dissolved. Flame-resistant fabrics result.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: May 18, 1993
    Assignee: Burlington Industries, Inc.
    Inventor: James R. Johnson
  • Patent number: 5207803
    Abstract: A method for dyeing fibrous material is provided. The method includes contacting a fibrous material with a carrier and a dye soluble or dispersed with the carrier in a dyebath. The carrier comprises an N-substituted aromatic carbonamide or an N,N-disubstituted aromatic carbonamide or mixture thereof. The carrier system of the present can be advantageously utilized for improving dye and flame resistant properties of difficult to dye fibers such as aromatic polyamide fibers, polybenzimidazole fibers and aromatic polyimide fibers.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: May 4, 1993
    Assignee: Springs Industries
    Inventors: John R. Holsten, Nigel E. Neely
  • Patent number: 5199958
    Abstract: Multicolored stain-resistant nylon carpet is prepared by tufting a space dyed cationic-dyeable carpet nylon, dyed with an acid or premetalized dye intermixed and tufted with an acid dyeable nylon and overdyed with an acid dye to selectively dye the acid dyeable fibers but not the already space dyed yarns.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: April 6, 1993
    Assignee: Burlington Industries Inc.
    Inventors: William G. Jenkins, Roy E. Guess
  • Patent number: 5196031
    Abstract: A process for dyeing a mixed fibrous substrate comprising applying to the substrate,a) at least one disperse dye,b) at least one copper - containing direct or reactive dye, preferably in a sufficient amount to produce a dyeing greater than a 1/1 standard depth;c) a complexing agent having a stability constant (K-value) with the metal of the direct or reactive dye of from 6 to 17 inclusive;d) a lignin sulphonate dispersing agent; ande) an oxidizing agent capable of converting copper (I) to copper (II) at a temperature of 100.degree.-130.degree. C. at a pH of 5-7 in the process for dyeing the mixed substrate.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: March 23, 1993
    Assignee: Sandoz Ltd.
    Inventor: John A. Hook
  • Patent number: 5175265
    Abstract: Benzisothiazole-azo dyes useful for dyeing synthetic fiber materials have the formula ##STR1## where X is hydrogen, chlorine, bromine, cyano or nitro and K is a radical of the formula ##STR2## where R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, substituted or unsubstituted phenyl, C.sub.3 -C.sub.5 -alkenyl or C.sub.5 -C.sub.7 -cycloalkyl,R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.3 is hydrogen or methyl andR.sup.4 is hydrogen, cyano, carbamoyl or C.sub.1 -C.sub.4 -alkoxycarbonyl.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: December 29, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hansen, Helmut Hagen, Helmut Reichelt
  • Patent number: 5167668
    Abstract: In an existing isothermal dyeing process, the alkali required for dye fixation is added to the neutral dyebath under linear or progressive program control. In this process, the amount of alkali added per unit time is small at the beginning and is increased progressively and in accordance with a program. This process passes through a certain (non-controlable) initial phase until the start of dye fixation on the cellulose. As a consequence the rate of fixation passes through a maximum before gradually decreasing when the final state of the dyeing is reached. To shorten the initial phase (waiting time) of dye fixation and to slow down dye fixation during the steepest part, it has proved advantageous according to the invention to add the alkali in accordance with a parabolic program.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: December 1, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Hahnke, Pablo Canora
  • Patent number: 5096456
    Abstract: A process for improving the thermal and/or photochemical stability of dyeings on polyamide fibres by applying to said fibres, from an aqueous medium, water-soluble phenolic antioxidants of formula (A--Y--).sub.n Z(--W).sub.m, wherein A, Y, Z, W, m and n are as defined in claim 1.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: March 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Francesco Fuso
  • Patent number: 5030243
    Abstract: There is disclosed a process for the photochemical stabilization of undyed and dyeable artificial leather, which comprises treating said artificial leather in an aqueous liquor which contains a light stabilizer. A composition for carrying out the process is also described.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: July 9, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Gerhard Reinert
  • Patent number: 5019133
    Abstract: A method for dyeing polyester-containing fibers by using a disperse dye, wherein said dyeing is conducted under an alkaline condition in an aqueous medium in the presence of at least one amino acid member selected from the group consisting of an amino acid, an amino acid derivative having at least one hydrogen atom of its amino group replaced with an organic group, and an alkali metal salt of such an amino acid or amino acid derivative, in the dyeing bath, and a dyeing assistant useful for the method.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: May 28, 1991
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Kiyoshi Himeno, Kazuhisa Konishi
  • Patent number: 5013328
    Abstract: A substrate to which a dyestuff or optical brightener has been applied is aftertreated with a cationic or protonatable polymeric Product P selected from:(A) a polymeric reaction product, Product A, of a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups with cyanamide, dicyanamide, guanidine or bisguanidine in which up to 50 mole percent of the cyanamide, dicyanamide, guanidine or bisguanidine may be replaced by a dicarboxylic acid or a mono- or di-ester thereof, with the splitting off ammonia, optionally in the presence of a catalyst; Product A containing at least one free hydrogen atom linked to a nitrogen atom; or(B) the polymeric reaction product, Product B, of Product A with(a) epichlorohydrin or a precursor thereof; or(b) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amine optionally in the presence of a catalyst for crosslinking N-methylol compounds; or(c) a water-soluble homo- or co-polymer, Pr
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: May 7, 1991
    Assignee: Sandoz Ltd.
    Inventors: Oskar Annen, Bernhard Schlick
  • Patent number: 4999027
    Abstract: In the process for the trichromatic dyeing or printing of natural and synthetic polyamide fibre materials, mixtures of reactive dyes, wherein blue-dyeing reactive dyes of the formula ##STR1## in which X is halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, cyano or nitro, n is the number 0, 1 or 2, q is the number 0 or 1, m is the number 1, 2 or 3, Z is halogen and Y is a CN, CHO or S(O).sub.p R group in which p is the number 0, 1 or 2 and R is substituted or unsubstituted C.sub.1 -C.sub.8 alkyl or phenyl, are used together with sulfo-containing yellow- or orange-dyeing reactive dyes and sulfo-containing red-dyeing reactive dyes, have a uniform color build-up in combination with shade constancy in different concentrations and good compatibility.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: March 12, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Urs Lehmann, Karl Hoegerle
  • Patent number: 4990164
    Abstract: A process is described for the photochemical stabilization of undyed and dyed polyamide fibre material, and blends thereof with other fibres, using photochemically stabilizing compositions based on copper compounds of phenols, which process comprises treating the polyamide fibre material with fibre-reactive organic copper complexes of the reaction products of o-hydroxybenzoyl derivatives of the formula ##STR1## wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl and the OH substituent is located in the 3-, 4- or 5-position, with aliphatic diamines or hydroxylamine. The copper complex compounds are distinguished by a high rate of exhaustion on to the polyamide fibre material, a feature which is significant in economic terms because of the low consumption of product.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: February 5, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Helmut Huber-Emden, Gerhard Reinert
  • Patent number: 4881941
    Abstract: A textile substrate is dyed by immersing it in a gathered configuration into an oil medium containing a dissolved or dispersed dye for a sufficient time to allow the oil medium to come into contact with part but not all of the surface of the substrate and the thus-treated substrate is then preferably immersed in an aqueous medium having another dye dissolved or dispersed therein.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: November 21, 1989
    Assignee: Sandoz Ltd.
    Inventor: Michael W. Dixon
  • Patent number: 4874391
    Abstract: A process for the photochemical stabilization of polyamide fiber material or mixtures thereof with other fiber materials which comprises treating the fiber material with a mixture of (A) a water-soluble copper complex dye or a mixture of copper complex compounds, at least one component being a water-soluble copper complex dye, (B) a light stabilizer and if desired (C) an antioxidant, an agent for carrying out the process and the fiber material treated therewith are described.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: October 17, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Gerhard Reinert
  • Patent number: 4872883
    Abstract: The mixture of monoazo dyestuffs which contains one or more dyestuffs of the formula I ##STR1## and one or more dyestuffs of the formula II ##STR2## wherein R.sup.1 and R.sup.2 independently of one another denote linear or branched alkyl with 1 to 6 carbon atoms and R denotes linear or branched alkyl with 1 to 3 carbon atoms, is outstandingly suitable for dyeing and printing hydrophobic materials a deep blue color.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: October 10, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Buhler, Klaus Hofmann, Manfred Hahnke
  • Patent number: 4852991
    Abstract: The invention relates to a process for dyeing synthetic or natural polyamide fibers with anionic dyestuffs, comprising (i) bringing the polyamide fibers into contact with an aqueous dyeing liquor which contains in addition to one or more dyestuffs a cationic dyeing assistant having affinity for anionic polyamide dyestuffs, and dyeing the polyamide fibers at a temperature of from 60.degree. to 105.degree. C., and (ii) adding an anionic dyeing assistant to the dyeing liquor 15 to 60 minutes after reaching the dyeing temperature, to complete the dye exhaustion. Surface and fibre level dyeings with a good dye penetration are thus obtained.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: August 1, 1989
    Assignee: Sandoz Ltd.
    Inventors: Josef Frauenknecht, Dieter Schwer
  • Patent number: 4844710
    Abstract: Aqueous textile assistants of high storage stability and hard water resistance comprising at least (a) a partial phosphoric ester, (b) a nonionic surfactant, (c) an anionic surfactant and (d) an alkali metal hydroxide. They can be used for wetting and deaerating fibre materials.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: July 4, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Christian Guth, Jorg Haase, Albert Stehlin
  • Patent number: 4828572
    Abstract: The invention relates to a process for dyeing or printing textile fibre materials in stable shades with reactive dyes which produce grey or black dyeings or prints, which process comprises dyeing or printing textile fibre materials with a mixture of heavy metal-containing, water-soluble reactive dyes which produce grey or black dyeings or prints, each component of which mixture, under identical dyeing, printing and fixation conditions, produces dyeings or prints with a tinge different from the tinge of the dyeings or prints produced by the other component, and carrying out subsequent fixation.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: May 9, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Sutterlin, Rainer Begrich
  • Patent number: 4826503
    Abstract: The invention relates to a process for aftertreating cellulosic material which has been dyed with reactive or direct dyes and subsequently treated in an acid bath. The aftertreatment with a solution of an alkali metal salt or alkaline earth metal salt enhances the wetfastness properties and the tear resistance of the cellulosic material.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: May 2, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Jean-Francois Landre
  • Patent number: 4775386
    Abstract: A process for the photochemical stabilization of undyed and dyed polyamide fibre material or blends thereof with other fibre materials, which comprises treating the fibre material with a mixture of (A) an organic copper complex, (B) a light stabilizer and, if desired, (C) an antioxidant, an agent for carrying out the process and the fibre material treated with the agent are described.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: October 4, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Kurt Burdeska
  • Patent number: 4752299
    Abstract: A process for dyeing a mixed fibrous substrate comprising applying to the substrate at least one disperse dye and at least one metal containing direct and/or reactive dye in the presence of a complexing agent having a stability constant K value with the metal of the direct or reactive dye of from 6 to 17 inclusive.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: June 21, 1988
    Assignee: Sandoz Ltd.
    Inventors: Oskar Annen, John A. Hook
  • Patent number: 4749378
    Abstract: Aramid fibers, polybenzimidazole fibers or blends of aramid and polybenzimidazole fibers are rendered flame resistant by a flame retardant introduced into the fibers by a polar organic swelling agent such as DMSO. Dyed or undyed fibers so treated exhibit substantially improved flame resistance as compared with untreated fibers.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: June 7, 1988
    Assignee: Burlington Industries, Inc.
    Inventors: Barbara J. Cates, Tanya E. FitzGerald, James K. Davis, Ernest J. Russell
  • Patent number: 4693726
    Abstract: Process for dyeing cellulose fibers or cellulose blend fibers, which comprises dyeing the fibers mentioned with water-soluble reactive dyes which contain in the dye molecule at least once the structural element of the formula ##STR1## in which Y denotes a hydroxyl, hydroxymethyl, alkoxy C.sub.1 -C.sub.4, aldehyde, carboxamide, monoalkyl C.sub.1 -C.sub.4 -carboxamide, dialkyl C.sub.1 -C.sub.4 -carboxamide, monophenyl carboxamide, cyano, alkyl C.sub.1 -C.sub.4 -oxycarbonyl or sulfo group or a halogen atom, in an aqueous medium within the pH range 4-11.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: September 15, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Meininger, Peter Mischke, Gerd Konig, Hartmut Springer
  • Patent number: 4678473
    Abstract: Cellulosic fibers are converted to cellulosate by immersion in an alkali metal hydroxide and then reacted with an aqueous solution of thioarylsulfonium salts to produce modified cellulosic fibers which are substantive to acid, direct, disperse, reactive and sulfur dyes. Cellulosic/synthetic and cellulosic/wool blends can also be treated to produce a fabric blend comprising modified cellulosic components that are substantive to diverse dye classes and synthetic and wool components which are substantive to a single dye class. When using a disperse dyebath of one color the entire fabric blend is dyed one color. When adding an acid, reactive or sulfur dye of a second color to the dyebath, the synthetic or wool component is dyed one color and the cellulosic component is dyed a different color.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: July 7, 1987
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Tyrone L. Vigo, Eugene J. Blanchard
  • Patent number: 4655783
    Abstract: A process for photochemical stabilization of non-dyed and dyed polyamide fibre material and mixtures thereof with other fibres which comprises treating the fibre material with a fibre-reactive copper complex of bisazomethines prepared from, for example, salicylaldehydes and aliphatic diamines is described. Some of these copper complexes used are novel compounds. The polyamide fibre material, for example textile material, thus treated largely retains its extensibility and elasticity even after relatively prolonged exposure to light. In addition, a clear improvement in light-fastness is achieved in dyed material by treatment with the metal complex.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Reinert, Helmut Huber-Emden, Gerhard Back
  • Patent number: 4654046
    Abstract: The invention relates to a thermosol pad-steam process for the continuous dyeing of cellulose/polyamide blends, which comprises impregnating said blends with a pad liquor which contains a non-ionic surfactant or a mixture of non-ionic surfactants, in addition to at least one vat dye and at least one metal complex dye and optionally further auxiliaries.This process is particularly suitable for dyeing large yardages.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: March 31, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Hellmut Felle
  • Patent number: 4622045
    Abstract: The invention provides a process for dyeing a textile substrate comprising wool fibres, which process comprises bringing the substrate into contact with an aqueous dyebath containing an acid dyestuff or a mixture of acid dyestuffs having(a) a build-up power on wool of from 90 to 98% at pH 4.5; together with(b) a migrating ability on wool of from 25 to 40%, at pH 4.5;(a) and (b) being determined under specific conditions, in the presence of a levelling agent which is the alkoxylation product of an amine substituted by a fatty saturated or unsaturated residue, the aqueous dyebath containing a mixture of acid dyestuffs when the substrate is a wool/synthetic polyamide fibre blend.These dyestuffs give level, fast and reproducible dyeings of a high quality.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: November 11, 1986
    Assignee: Sandoz Ltd.
    Inventors: Josef Frauenknecht, Karl Zeller
  • Patent number: 4613337
    Abstract: The dyeing of cellulose fibres or fibre blends containing cellulose fibres with reactive dyes by a cold pad-batch or pad-steam process is effected with aqueous padding liquors which contain water-soluble reaction products of copolymers of maleic anhydride and ethylene, propylene, isobutylene, diisobutylene or styrene with ammonia or amines of the formula ##STR1## in which R.sup.1 and R.sup.2 stand for hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -hydroxyalkyl.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: September 23, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo W. Hendricks, Klaus Lesche, Gunter Sackmann, Wolf-Dieter Schroer
  • Patent number: 4604101
    Abstract: Dyeings on hydroxy group- or nitrogen-containing fibres are improved by aftertreatment, simultaneously or sequentially, with (A) a polymeric reaction product of an amine with cyanamide, dicyandiamide, quanidine or bisguanidine and (B) a quaternary polyalkylene polyamine. A synergistic effect between (A) and (B) is observed.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: August 5, 1986
    Assignee: Sandoz Ltd.
    Inventors: Bruno Kissling, Tibor Robinson
  • Patent number: 4568351
    Abstract: A textile finishing process in which there is employed, as a pH regulator, a compound or a mixture of compounds of formula I ##STR1## in which p is from 1 to 20,R is hydrogen, C.sub.1-3 alkyl or C.sub.1-3 alkyl substituted by hydroxyR' has independently one of the significances given for R or is --CO--R andA is --CH.sub.2 CH.sub.2 --; --CH.sub.2 --CH.sub.2 --CH.sub.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: February 4, 1986
    Assignee: Sandoz Ltd.
    Inventors: Jose M. Palleiro Cardona, Karl-Heinz Weible
  • Patent number: 4557731
    Abstract: A blended fiber material of cellulose fiber and nitrogen-containing fiber is dyed by a one-bath one-step dyeing method, which comprises contacting the material with a dye bath containing both a reactive dye having two or more fiber-reactive groups different from each other and a reactive dye having one fiber reactive dye, whereby a dyed product having an excellent wet fastness is obtained even in a single manner.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: December 10, 1985
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masaaki Sasakura, Kunihiko Imada
  • Patent number: 4529406
    Abstract: A monoazo compound of the formula, ##STR1## wherein X is hydrogen atom or lower alkyl group; Z is hydrogen atom, halogen atom, alkyl group, acylamino group, benzoylamino group or alkylsulfonylamino group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently are hydrogen atom or alkyl group, provided that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 cannot simultaneously be hydrogen atoms; and R.sub.5 is hydrogen atom, alkyl group, substituted alkyl group, alkenyl group, cycloalkyl group, aralkyl group or phenyl group.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: July 16, 1985
    Assignee: Research Association of Dyestuff Manufacturers
    Inventors: Kiyoyasu Hashimoto, Akira Murata, Kiyoteru Kojima, Toshio Nakamatzu, Akira Takeshita
  • Patent number: 4525169
    Abstract: The present invention relates to an artificial grain leather having different color spot groups comprised of ultra fine fibers, in which at least one side of the fibrous substrate has two types of colors differing in hue and/or lightness value and being covered with transparent resin layers.The present invention produces a three-dimensional surface effect and a grain pattern effect, and is recognized as consisting of a mixture of ultra fine fibers each being quite different in color from the next, though providing the appearance of a single color from a distance, and producing a subdued and rich appearance as a result of the integration of colors by the color of a coating layer.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: June 25, 1985
    Assignee: Toray Industries, Inc.
    Inventors: Akira Higuchi, Miyoshi Okamoto
  • Patent number: 4519804
    Abstract: Melange-colored sheet and method. The sheet has an inner portion having ultrafine fiber bundles and/or multi-core fibers. The surface of the sheet is composed of super-entangled ultrafine fibers and/or fine bundles of ultrafine fibers of different colors, branched from the fibers of the inner portion, so that the surface presents a melange-colored effect of at least two colors.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: May 28, 1985
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyasu Kato, Kenkichi Yagi, Miyoshi Okamoto
  • Patent number: 4515598
    Abstract: A process for dyeing or printing fiber materials containing hydroxy and/or carbonamide groups, in which process a fiber-reactive, water-soluble dyestuff of the type defined below is applied to the fiber material and is then fixed on the fiber material at an ordinary or elevated temperature, if appropriate in the presence of agents having an alkaline reaction. This water-soluble dyestuff, which contains at least one sulfonic acid group, contains one or more groupings belonging to the group comprising the formulae (1a), (1b) and (1c)--SO.sub.2 --CH.dbd.CH.sub.2 (1a)--SO.sub.2 --CH.sub.2 --CH.sub.2 --Hal (1b)--SO.sub.2 --CH.sub.2 --CH.sub.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: May 7, 1985
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Fritz Meininger, Joachim W. Otten, deceased, by Ursula Otten, heir, by Anna G. Rudolph nee Otten, heir
  • Patent number: 4514187
    Abstract: The present invention relates to a process for the differential dyeing of such polyamide fibres and materials containing polyamide fibres as are made of components which differ in dyeability, or mixtures of polyamide fibres, with dyes or dye mixtures, which comprises using for dyeing these materials an aqueous liquor which contains a dye of the formula ##STR1## in which A.sub.1 is hydrogen or C.sub.1-4 alkyl and R is a C.sub.2-5 -alkanoyl, C.sub.3-6 -alkenoyl, (C.sub.1-4 -alkoxy)carbonyl, phenoxycarbonyl, C.sub.1-4 -alkylsulfonyl or phenylsulfonyl radical which can be substituted in the alkyl, alkenyl, alkoxy, phenoxy or phenyl moiety, or a mixture of a dye of the formula (1) with a monosulfo-containing anthraquinone dye, and to those dyes of the formula (1) in which A.sub.1 is as defined above and R is a C.sub.1-4 -alkylsulfonyl or phenylsulfonyl radical which can be substituted in the phenyl moiety by C.sub.1-4 -alkyl.
    Type: Grant
    Filed: July 14, 1983
    Date of Patent: April 30, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans U. Schutz, Helmut Raisin, Thys Bouwknegt
  • Patent number: 4511361
    Abstract: A method of applying alignment stripes to the surface of a papermakers' felt includes the steps of printing a dye pattern in the form of the stripes on a sheet of transfer paper, employing heat sublimatible transfer dyes, applying such a sheet with the transferable dye thereon adjacent an inside surface of a felt as mounted on a felt finishing setup which includes a heated head roll, and causing said sheet to be drawn with the felt between the felt and heated roll, while maintaining tension in the felt. The heated head roll causes the transfer of the dye pattern defining the alignment strip from the sheet to the adjacent surface of the felt.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: April 16, 1985
    Assignee: The Orr Felt Company
    Inventor: Shirish M. Shah
  • Patent number: 4501589
    Abstract: A process for dyeing or printing sized textiles comprising applying to the sized substrate a dyeing liquor or a printing paste which contains, in addition to the dyestuffs(i) a compound or a mixture of compounds selected from compounds having solubilizing, washing, emulsifying, dispersing or dye fixation accelerating properties, and(ii) a textile size or a mixture of textile sizes.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: February 26, 1985
    Assignee: Sandoz Ltd.
    Inventor: Christian Oschatz
  • Patent number: 4439206
    Abstract: The present invention relates to a new dyeing process based on the exhaustion principle. It is characterized in that dyeing liquors are used which, in addition to the dyestuff or dyestuff mixture, contain one or more salts, at least one compound having a glycidyl radical and, if appropriate, further auxiliaries.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: March 27, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dietrich Hildebrand, Udo W. Hendricks