Synthetic Polyamide Patents (Class 8/531)
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Patent number: 5509940Abstract: 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: GrantFiled: October 27, 1994Date of Patent: April 23, 1996Assignee: Arrow Engineering, Inc.Inventors: Jack J. Zbar, Robert B. Collier, Philip G. Carlson
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Patent number: 5487936Abstract: 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: GrantFiled: March 24, 1994Date of Patent: January 30, 1996Assignee: Collier Campbell Ltd.Inventor: Susan J. Collier
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Patent number: 5462565Abstract: 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: GrantFiled: September 8, 1994Date of Patent: October 31, 1995Assignee: Bayer AktiengesellschaftInventors: Jurgen Rohr, Martin Riegels, Sylvia Lohmann
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Patent number: 5446136Abstract: 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: GrantFiled: December 13, 1994Date of Patent: August 29, 1995Assignee: Bayer AktiengesellschaftInventors: Kerstin Pape, Horst Berneth
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Patent number: 5445653Abstract: 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: GrantFiled: March 28, 1994Date of Patent: August 29, 1995Assignee: Rossville Yarn, Inc.Inventors: Robert R. Hixson, Randy J. Rawlston, Hobert C. Sweatman
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Patent number: 5389110Abstract: 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: GrantFiled: August 18, 1993Date of Patent: February 14, 1995Assignee: BASF AktiengesellschaftInventors: Johannes P. Dix, Bernd Hupfeld, Gunther Lamm, Helmut Reichelt
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Patent number: 5294231Abstract: 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: GrantFiled: December 10, 1992Date of Patent: March 15, 1994Assignee: Sandoz Ltd.Inventor: Francis Palacin
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Patent number: 5250079Abstract: 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: GrantFiled: August 7, 1992Date of Patent: October 5, 1993Assignee: Sandoz Ltd.Inventor: Hans-Peter Baumann
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Patent number: 5248314Abstract: 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: GrantFiled: October 26, 1992Date of Patent: September 28, 1993Assignee: Hoechst Mitsubishi Kasei Co.Inventor: Ulrich Buhler
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Patent number: 5223000Abstract: 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: GrantFiled: October 28, 1991Date of Patent: June 29, 1993Assignee: Ciba-Geigy CorporationInventor: Urs Lauk
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Patent number: 5215545Abstract: 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: GrantFiled: March 16, 1992Date of Patent: June 1, 1993Assignees: Burlington Industries, Inc., ProChroma Technologies, Inc.Inventors: Barbara J. Cates, Phillip H. Riggins, David R. Kelly
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Patent number: 5211720Abstract: 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: GrantFiled: June 20, 1988Date of Patent: May 18, 1993Assignee: Burlington Industries, Inc.Inventor: James R. Johnson
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Patent number: 5207803Abstract: 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: GrantFiled: September 28, 1990Date of Patent: May 4, 1993Assignee: Springs IndustriesInventors: John R. Holsten, Nigel E. Neely
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Patent number: 5199958Abstract: 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: GrantFiled: July 19, 1991Date of Patent: April 6, 1993Assignee: Burlington Industries Inc.Inventors: William G. Jenkins, Roy E. Guess
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Patent number: 5196031Abstract: 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: GrantFiled: August 27, 1991Date of Patent: March 23, 1993Assignee: Sandoz Ltd.Inventor: John A. Hook
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Patent number: 5175265Abstract: 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: GrantFiled: March 5, 1990Date of Patent: December 29, 1992Assignee: BASF AktiengesellschaftInventors: Guenter Hansen, Helmut Hagen, Helmut Reichelt
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Patent number: 5167668Abstract: 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: GrantFiled: November 26, 1990Date of Patent: December 1, 1992Assignee: Hoechst AktiengesellschaftInventors: Manfred Hahnke, Pablo Canora
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Patent number: 5096456Abstract: 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: GrantFiled: January 15, 1991Date of Patent: March 17, 1992Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Francesco Fuso
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Patent number: 5030243Abstract: 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: GrantFiled: December 27, 1989Date of Patent: July 9, 1991Assignee: Ciba-Geigy CorporationInventor: Gerhard Reinert
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Patent number: 5019133Abstract: 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: GrantFiled: November 17, 1989Date of Patent: May 28, 1991Assignee: Mitsubishi Kasei CorporationInventors: Kiyoshi Himeno, Kazuhisa Konishi
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Patent number: 5013328Abstract: 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, PrType: GrantFiled: November 15, 1989Date of Patent: May 7, 1991Assignee: Sandoz Ltd.Inventors: Oskar Annen, Bernhard Schlick
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Patent number: 4999027Abstract: 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: GrantFiled: August 23, 1989Date of Patent: March 12, 1991Assignee: Ciba-Geigy CorporationInventors: Urs Lehmann, Karl Hoegerle
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Patent number: 4990164Abstract: 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: GrantFiled: September 27, 1989Date of Patent: February 5, 1991Assignee: Ciba-Geigy CorporationInventors: Helmut Huber-Emden, Gerhard Reinert
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Patent number: 4881941Abstract: 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: GrantFiled: July 12, 1988Date of Patent: November 21, 1989Assignee: Sandoz Ltd.Inventor: Michael W. Dixon
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Patent number: 4874391Abstract: 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: GrantFiled: July 20, 1987Date of Patent: October 17, 1989Assignee: Ciba-Geigy CorporationInventor: Gerhard Reinert
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Patent number: 4872883Abstract: 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: GrantFiled: January 27, 1988Date of Patent: October 10, 1989Assignee: Bayer AktiengesellschaftInventors: Ulrich Buhler, Klaus Hofmann, Manfred Hahnke
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Patent number: 4852991Abstract: 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: GrantFiled: March 3, 1988Date of Patent: August 1, 1989Assignee: Sandoz Ltd.Inventors: Josef Frauenknecht, Dieter Schwer
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Patent number: 4844710Abstract: 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: GrantFiled: November 30, 1987Date of Patent: July 4, 1989Assignee: Ciba-Geigy CorporationInventors: Christian Guth, Jorg Haase, Albert Stehlin
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Patent number: 4828572Abstract: 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: GrantFiled: October 13, 1987Date of Patent: May 9, 1989Assignee: Ciba-Geigy CorporationInventors: Wolfgang Sutterlin, Rainer Begrich
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Patent number: 4826503Abstract: 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: GrantFiled: October 9, 1986Date of Patent: May 2, 1989Assignee: Ciba-Geigy CorporationInventor: Jean-Francois Landre
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Patent number: 4775386Abstract: 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: GrantFiled: April 27, 1987Date of Patent: October 4, 1988Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Kurt Burdeska
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Patent number: 4752299Abstract: 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: GrantFiled: October 23, 1986Date of Patent: June 21, 1988Assignee: Sandoz Ltd.Inventors: Oskar Annen, John A. Hook
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Patent number: 4749378Abstract: 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: GrantFiled: September 12, 1986Date of Patent: June 7, 1988Assignee: Burlington Industries, Inc.Inventors: Barbara J. Cates, Tanya E. FitzGerald, James K. Davis, Ernest J. Russell
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Patent number: 4693726Abstract: 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: GrantFiled: April 3, 1986Date of Patent: September 15, 1987Assignee: Hoechst AktiengesellschaftInventors: Fritz Meininger, Peter Mischke, Gerd Konig, Hartmut Springer
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Patent number: 4678473Abstract: 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: GrantFiled: September 3, 1986Date of Patent: July 7, 1987Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Tyrone L. Vigo, Eugene J. Blanchard
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Patent number: 4655783Abstract: 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: GrantFiled: November 12, 1985Date of Patent: April 7, 1987Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Helmut Huber-Emden, Gerhard Back
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Patent number: 4654046Abstract: 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: GrantFiled: December 20, 1985Date of Patent: March 31, 1987Assignee: Ciba-Geigy CorporationInventor: Hellmut Felle
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Patent number: 4622045Abstract: 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: GrantFiled: September 28, 1984Date of Patent: November 11, 1986Assignee: Sandoz Ltd.Inventors: Josef Frauenknecht, Karl Zeller
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Patent number: 4613337Abstract: 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: GrantFiled: May 3, 1985Date of Patent: September 23, 1986Assignee: Bayer AktiengesellschaftInventors: Udo W. Hendricks, Klaus Lesche, Gunter Sackmann, Wolf-Dieter Schroer
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Patent number: 4604101Abstract: 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: GrantFiled: February 21, 1985Date of Patent: August 5, 1986Assignee: Sandoz Ltd.Inventors: Bruno Kissling, Tibor Robinson
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Patent number: 4568351Abstract: 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: GrantFiled: May 17, 1984Date of Patent: February 4, 1986Assignee: Sandoz Ltd.Inventors: Jose M. Palleiro Cardona, Karl-Heinz Weible
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Patent number: 4557731Abstract: 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: GrantFiled: December 15, 1983Date of Patent: December 10, 1985Assignee: Sumitomo Chemical Company, LimitedInventors: Masaaki Sasakura, Kunihiko Imada
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Patent number: 4529406Abstract: 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: GrantFiled: July 18, 1983Date of Patent: July 16, 1985Assignee: Research Association of Dyestuff ManufacturersInventors: Kiyoyasu Hashimoto, Akira Murata, Kiyoteru Kojima, Toshio Nakamatzu, Akira Takeshita
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Patent number: 4525169Abstract: 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: GrantFiled: July 5, 1983Date of Patent: June 25, 1985Assignee: Toray Industries, Inc.Inventors: Akira Higuchi, Miyoshi Okamoto
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Patent number: 4519804Abstract: 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: GrantFiled: July 5, 1983Date of Patent: May 28, 1985Assignee: Toray Industries, Inc.Inventors: Hiroyasu Kato, Kenkichi Yagi, Miyoshi Okamoto
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Patent number: 4515598Abstract: 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: GrantFiled: November 10, 1983Date of Patent: May 7, 1985Assignee: Hoechst AktiengesellschaftInventors: Fritz Meininger, Joachim W. Otten, deceased, by Ursula Otten, heir, by Anna G. Rudolph nee Otten, heir
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Patent number: 4514187Abstract: 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: GrantFiled: July 14, 1983Date of Patent: April 30, 1985Assignee: Ciba-Geigy CorporationInventors: Hans U. Schutz, Helmut Raisin, Thys Bouwknegt
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Patent number: 4511361Abstract: 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: GrantFiled: April 27, 1984Date of Patent: April 16, 1985Assignee: The Orr Felt CompanyInventor: Shirish M. Shah
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Patent number: 4501589Abstract: 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: GrantFiled: June 10, 1983Date of Patent: February 26, 1985Assignee: Sandoz Ltd.Inventor: Christian Oschatz
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Patent number: 4439206Abstract: 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: GrantFiled: November 3, 1982Date of Patent: March 27, 1984Assignee: Bayer AktiengesellschaftInventors: Dietrich Hildebrand, Udo W. Hendricks