Confined Gas Phase Superatmospheric Pressure Dyeing Process (other Than Steam Below 138 Degrees C.) Patents (Class 8/475)
  • Patent number: 11168424
    Abstract: A waterless dyeing device for cone yarn, a waterless dyeing method and a produce are provided; wherein the device comprising: a dye autoclave (1); a dyeing autoclave (2); a recycle autoclave (6); a dyeing circulation system in which the dye autoclave (1), the dyeing autoclave (2) and the recycle autoclave (6) are in fluid communication with; wherein further comprises: a cone yarn inlet formed on the top of the dyeing autoclave (2), which is provided with a sealing cap (7); a cone yarn center shaft (10) vertically disposed at the center inside the dyeing autoclave, which is a perforated outlet tube with fluid discharge holes opened on the side wall; an intake pipe (13) disposed on the bottom of the dying autoclave (2) which is in communication with the cone yarn center shaft (10); a dyeing autoclave outlet (9) disposed on the dying autoclave (2); and a CO2 container (4), a pressure pump, a circulation pump (3) and conduits which are included in the dyeing circulation system.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: November 9, 2021
    Assignee: QINGDAO JIFA GROUP CO., LTD.
    Inventors: Jian Wang, Weidong Yang, Gang Wan, Chongbo Liu, Shaobing Liu, Dapeng Lin
  • Patent number: 11015289
    Abstract: An embodiment herein provides a process for dyeing of textile materials 108 with supercritical fluid. One or more dye materials 102 along with additives (if required) are mixed with at least one suitable solvent 104 to obtain one or more dye solutions 106. A textile material 108 is pre-treated with the one or more dye solutions 106 to obtain a dye coated textile material 110. The dye-coated textile material 110 is exposed to the supercritical fluid 112 in a supercritical fluid dyeing vessel at controlled pressure and temperature. The supercritical fluid 112 solubilizes and diffuses the one or more dye materials 102 inside the surface, pores and capillaries of the textile material 108. The supercritical fluid vessel is then depressurized below supercritical condition to entrap the one or more dye materials 102 in the textile material 108 to obtain a supercritical fluid dyed textile material 114.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: May 25, 2021
    Inventor: Swapneshu Ashok Baser
  • Patent number: 10895902
    Abstract: Apparatus, systems and methods for managing and aggregating cached data of aggregated electronic devices for sharing functionality to fulfill requested tasks, while monitoring and controlling battery energy levels in the electronic devices to ensure sufficient battery power is available, individually or collectively, to fulfill a requested task. The electronic devices are positioned in proximity to a computing device for sharing cached hierarchies of each device as well as hierarchies of the aggregated devices. The electronic devices are provided in proximity to a charge distribution unit (CDU) for determining if each electronic device has enough battery power to complete all, or a portion, of a requested task. If any device needs charging, the CDU allocates and distributes battery power from one or more other device batteries and/or power outlet. The charging power is then transferred to the electronic device in need of charging to fulfill the requested task.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: January 19, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pasquale A. Catalano, Casimer M. DeCusatis, Rajaram B. Krishnamurthy, Michael Onghena, Anuradha Rao
  • Patent number: 10480123
    Abstract: Methods are directed to the use of a supercritical fluid for finishing a target material with a finishing material. One or more variables selected from temperature, pressure, flow rate, and time are manipulated to increase efficiencies in the finishing process. As temperature or pressure are decreased causing a change in the density of a supercritical fluid carbon dioxide, which in turn causes a precipitation of dissolved material finish with the carbon dioxide, other variables are maintained above threshold values to increase the uptake of the material finish by the target material. This improvement reduces time by limiting cleaning processes of the system, saves materials used in the cleaning process, and saves energy used to achieve cycles of the process, in aspects.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 19, 2019
    Assignee: NIKE, Inc.
    Inventors: Matt W. Kelly, Gerardo A. Montero, Anand P. Kanchagar, Pankaj Rugnath Panchmatia
  • Publication number: 20150052692
    Abstract: The present application is directed to a method of waterless processing of textile materials using supercritical fluid, including the use of supercritical fluid to dye the textile materials, the use of supercritical fluid for a pre-processing procedure of cleansing the textile materials, and the use of supercritical fluid to wash off unfixed dyes and cleansing of the textile materials and to perform the post-processing procedure of adding functional materials after the use of supercritical fluid to dye the textile materials. The present application provides an integrated technology of pre-processing, dyeing and post-processing of textile materials using supercritical fluid. At the same time, cleansing and dyeing are performed which effectively raises the efficiency.
    Type: Application
    Filed: February 17, 2014
    Publication date: February 26, 2015
    Applicant: HONG KONG PRODUCTIVITY COUNCIL
    Inventors: Kwok Keung Lee, Songying Mo, Johnny Chi Kai Ho, Tik Lam Cheung
  • Patent number: 8607392
    Abstract: Disclosed are processes for fixing additives in textiles that comprise applying at least one additive to the textile and substantially simultaneously directing steam onto the faces of the textile. Also disclosed are the products of the disclosed processes. Also disclosed are apparatuses for fixing additives in textiles comprising means for applying at least one additive to the textile and means for substantially simultaneously directing steam onto the faces of the textile. Also disclosed are rotating steam head assemblies for use in connection with the disclosed processes and apparatuses. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: December 17, 2013
    Assignee: Columbia Insurance Company
    Inventors: Dennis J. Jones, Jr., Chad Anderson
  • Patent number: 8551190
    Abstract: A method for manufacturing a coloring agent for keratin fibers is provided. The method includes directing a composition A from a container A by a filler apparatus through an inlet opening into a container B containing a composition B. A coloring agent for keratin fibers exits from the container B as a mixture of the composition A and the composition B. The composition A is flowable and encompasses a polymeric thickener and the composition B encompasses a fatty alcohol.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 8, 2013
    Assignee: Henkel AG & Co. KGaA
    Inventors: Frank Janssen, Juergen Schoepgens
  • Patent number: 8545576
    Abstract: A method for manufacturing a coloring agent for keratin fibers is provided. The method includes directing a composition A from a container A by a filler apparatus through an inlet opening into a container B containing a composition B. The coloring agent for keratin fibers exits from the container B as a mixture of the composition A and the composition B. The composition B contains a fatty alcohol, an alkoxylated fatty alcohol, and a fatty acid.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: October 1, 2013
    Assignee: Henkel AG & Co., KGaA
    Inventors: Frank Janssen, Juergen Schoepgens
  • Patent number: 8545575
    Abstract: A method for manufacturing a coloring agent for keratin fibers is provided. The method includes directing a composition A from a container A by a filler apparatus through an inlet opening into a second container B containing a second composition B. The composition A is flowable. The coloring agent for keratin fibers exits from the container B as a mixture of the composition A and the composition B. The composition B comprises an oil component having a melting point below about 25° C. and the composition A and/or the composition B comprises an emulsifier.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 1, 2013
    Assignee: Henkel AG & Co. KGaA
    Inventor: Frank Janssen
  • Patent number: 8439982
    Abstract: The present technology provides an illustrative method for dyeing textiles that includes intermixing a dye with super-critical carbon dioxide (sc-CO2) to form a dye solution and immersing a fabric in the dye solution. The method further includes applying an electric field to the dye solution to cause charged particles of the dye solution to separate and cause the dye to diffuse into the fabric.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: May 14, 2013
    Assignee: Empire Technology Development LLC
    Inventor: Thomas A. Yager
  • Publication number: 20120159720
    Abstract: Coloring compositions including, for example, a supercritical fluid comprising a noble gas in a supercritical state and a colorant within the supercritical fluid are disclosed. For example, the noble gas may be at least one of helium, argon, krypton, neon, xenon and radon. Methods of producing such compositions and methods of coloring an article with such composition are also disclosed.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 28, 2012
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: William B. CARLSON, Gregory D. PHELAN, Philip A. SULLIVAN
  • Patent number: 8192507
    Abstract: Coloring compositions including, for example, a supercritical fluid comprising a noble gas in a supercritical state and a colorant within the supercritical fluid are disclosed. For example, the noble gas may be at least one of helium, argon, krypton, neon, xenon and radon. Methods of producing such compositions and methods of coloring an article with such composition are also disclosed.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: June 5, 2012
    Assignee: Empire Technology Development LLC
    Inventors: William B. Carlson, Gregory D. Phelan, Philip A. Sullivan
  • Patent number: 8152862
    Abstract: A coloring system can include a noble gas, colorant, and one or more vessels configured to convert the noble gas into a supercritical fluid, and/or receive and color an article of manufacture with the noble gas in the supercritical fluid state. A coloring process can include converting a noble gas into a supercritical fluid state; dissolving, suspending, or absorbing a colorant into the supercritical noble gas, and coloring an article of manufacture with the noble gas in the supercritical fluid state. A coloring composition can include a noble gas in a supercritical fluid state, and a colorant located in the supercritical noble gas.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: April 10, 2012
    Assignee: Empire Technology Development LLC
    Inventors: William B. Carlson, Gregory D. Phelan, Philip A. Sullivan
  • Publication number: 20120030884
    Abstract: A coloring system can include a noble gas, colorant, and one or more vessels configured to convert the noble gas into a supercritical fluid, and/or receive and color an article of manufacture with the noble gas in the supercritical fluid state. A coloring process can include converting a noble gas into a supercritical fluid state; dissolving, suspending, or absorbing a colorant into the supercritical noble gas, and coloring an article of manufacture with the noble gas in the supercritical fluid state. A coloring composition can include a noble gas in a supercritical fluid state, and a colorant located in the supercritical noble gas.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 9, 2012
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: William B. Carlson, Gregory D. Phelan, Philip A. Sullivan
  • Publication number: 20110138547
    Abstract: The present invention relates to a method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide, said substrate being selected from the group consisting of cellulose fibres, modified cellulose fibres, protein fibres and of synthetic fibres, or any combination thereof, wherein the method comprises the subsequent steps of: pre-treating the substrate by wetting the substrate with a fluid medium containing at least 10 wt. %, preferably at least 40 wt. % of one or more organic hydrogen bond acceptor compounds selected from the group consisting of C1-C6 alkanols, dimethyl sulfoxide, dimethylformamide, acetone, butan-2-one, dimethyl ether, methyl acetate and ethyl acetate; dyeing the substrate by contacting the pre-treated substrate with supercritical or near supercritical carbon dioxide containing a reactive dyestuff.
    Type: Application
    Filed: February 8, 2011
    Publication date: June 16, 2011
    Inventors: Maria Vanesa FERNANDEZ CID, Geert Jan Witkamp, Kathryn Nicole Teesink-Gerstner, Wilhelmus Johannes Theodorus Veugelers, Geert Feye Woerlee
  • Patent number: 7938865
    Abstract: The present invention relates to a method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide, said substrate being selected from the group consisting of cellulose fibers, modified cellulose fibers, protein fibers and of synthetic fibers, or any combination thereof, wherein the method comprises the subsequent steps of: pre-treating the substrate by wetting the substrate with a fluid medium containing at least 10 wt. %, preferably at least 40 wt. % of one or more organic hydrogen bond acceptor compounds selected from the group consisting of C1-C6 alkanols, dimethyl sulfoxide, dimethylformamide, acetone, butan-2-one, dimethyl ether, methyl acetate and ethyl acetate; dyeing the substrate by contacting the pre-treated substrate with supercritical or near supercritical carbon dioxide containing a reactive dyestuff.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: May 10, 2011
    Assignee: Feyecon Development & Implementation B.V.
    Inventors: Maria Vanesa Fernandez Cid, Geert Jan Witkamp, Kathryn Nicole Teesink-Gerstner, Wilhelmus Johannes Theodorus Veugelers, Geert Feye Woerlee
  • Patent number: 7731763
    Abstract: The present invention relates to a method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide, said substrate being selected from the group consisting of cellulose fibers; modified cellulose fibers; protein fibers; synthetic fibers and any combination thereof, wherein the method comprises dyeing said substrate by contacting the substrate with supercritical or near supercritical carbon dioxide containing a reactive dyestuff and one or more acids in a concentration of at least 0.05 mol.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 8, 2010
    Assignee: Feyecon Development & Implementation B.V.
    Inventors: Maria Vanesa Fernandez Cid, Geert Jan Witkamp, Geert Feye Woerlee, Wilhelmus Johannes Theodorus Veugelers
  • Patent number: 6676710
    Abstract: A process for treating a textile substrate, the process including the steps of providing a textile substrate; providing a treatment bath; entraining a transport material in the treatment bath wherein the transport material further comprises a treatment material dissolved or suspended therein and wherein the transport material is substantially immiscible with the treatment bath; and contacting the textile substrate with the transport material in the treatment bath to thereby treat the textile substrate with the treatment material in the transport material.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: January 13, 2004
    Assignee: North Carolina State University
    Inventors: Carl Brent Smith, Walter A. Hendrix, Donald L. Butcher
  • Patent number: 6620211
    Abstract: In a method for dyeing textile material with one or more fiber-reactive disperse dyestuffs in a supercritical or almost critical fluid, such as CO2, which textile material is selected from the group consisting of silk, wool and cellulose, combinations thereof and combinations of one or more thereof with synthetic fibers, such as polyester and/or polyamide, the relative humidity of the fluid is in the range from 10-100% during dyeing. Textile materials which have been dyed with the aid of this method have properties which are at least equal to those of textile materials of the same type which have been dyed in the traditional manner using water-soluble dyestuffs. A device for carrying out the dyeing method is also disclosed.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: September 16, 2003
    Assignee: Stork Prints B.V.
    Inventors: Wilhelmus J. T. Veugelers, Geert Feye Woerlee, Hendrik Gooijer, Jan Willem Gerritsen
  • Patent number: 6615620
    Abstract: A process for introducing a textile treatment material into a textile treatment system, particularly a supercritical fluid carbon dioxide (SCF—CO2) treatment system. The process includes the steps of providing a preparation vessel in fluid communication with a textile treatment system; loading a textile treatment material into the preparation vessel; dissolving or suspending the textile treatment material in near-critical liquid carbon dioxide or supercritical fluid carbon dioxide in the preparation vessel; and introducing the dissolved or suspended textile treatment material into the textile treatment system. The textile treatment material can be selected from a group including a brightening agent, a whitening agent and a dye. A system suitable for use in carrying out the process is also disclosed.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: September 9, 2003
    Assignee: North Carolina State University
    Inventors: Walter A. Hendrix, Gerardo A. Montero, C. Brent Smith, Donald L. Butcher
  • Patent number: 6517589
    Abstract: The present invention provides a novel manufacturing method for coloring and lustering substance, especially suitable for coloring and lustering a carbonizable substance, without using pigments or dyes. The method utilizes the relationship between heat, gas and time to allow a substance to directly form and change color. The color-forming or color-changing phenomena is due to the natural quantity change effects caused by the heat, gas and time, which comprises at least one kind of color, color series or color and luster change.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: February 11, 2003
    Assignee: China Textile Institute
    Inventors: Po-Hsiung Huang, Hung-En Chen, Jung-Shen Lien
  • Patent number: 6261326
    Abstract: A process for introducing a textile treatment material into a textile treatment system, particularly a supercritical fluid carbon dioxide (SCF-CO2) treatment system. The process includes the steps of providing a preparation vessel in fluid communication with a textile treatment system; loading a textile treatment material into the preparation vessel; dissolving or suspending the textile treatment material in near-critical liquid carbon dioxide or supercritical fluid carbon dioxide in the preparation vessel; and introducing the dissolved or suspended textile treatment material into the textile treatment system. The textile treatment material can be selected from a group including a brightening agent, a whitening agent and a dye. A system suitable for use in carrying out the process is also disclosed.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: July 17, 2001
    Assignee: North Carolina State University
    Inventors: Walter A. Hendrix, Gerardo A. Montero, C. Brent Smith, Donald L. Butcher
  • Patent number: 6048369
    Abstract: Processes for dyeing a hydrophobic textile fiber with a colorant material using a SCF--CO.sub.2 dyebath are described. One process employs cooling, without venting or removing CO.sub.2 from the system, to a target CO.sub.2 temperature at or below the glass transition temperature of the hydrophobic fiber, followed by the venting of the dyeing system to atmospheric pressure. The other process employs venting, without cooling, to a target CO.sub.2 density where dye is no longer soluble in the SCF--CO.sub.2, followed by cooling to a target temperature and then venting to atmospheric pressure. Optionally, the temperature of the dyeing process is established by heating the process according to a selected temperature profile.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: April 11, 2000
    Assignee: North Carolina State University
    Inventors: Carl Brent Smith, Gerardo A. Montero, Walter A. Hendrix
  • Patent number: 6010542
    Abstract: A method of dyeing a substrate in carbon dioxide comprises the steps of (a) providing a dye composition comprising carbon dioxide, a dye, and a surfactant, the surfactant included in an amount sufficient to solubilize, emulsify or disperse the dye in the carbon dioxide; and then (b) dyeing said substrate with said dye composition.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: January 4, 2000
    Assignee: Micell Technologies, Inc.
    Inventors: James P. DeYoung, James B. McClain, Joseph M. DeSimone, Timothy J. Romack
  • Patent number: 5972045
    Abstract: A process is disclosed for dyeing a textile substrate, in particular for dyeing polyester yarns. The substrate to be dyed is placed in an autoclave and a supercritical fluid containing at least one dyestuff is applied to it, i.e. passed through it. The supercritical fluid is pumped continuously via a circulation system allocated to the autoclave, and, in order to terminate the dyeing process, the pressure and/or temperature is lowered and/or the volume is increased. Immediately before and/or during the pressure and/or temperature reduction and/or volume increase, as much as possible of any residual dye which has not been transferred to the substrate is removed from the fluid.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: October 26, 1999
    Assignee: Amann & Sohne GmbH & Co.
    Inventors: Rudolf Eggers, Joachim von Schnitzler, Gottlob Worner
  • Patent number: 5958085
    Abstract: The description relates to a process for dyeing a textile substrate in at least one supercritical fluid, preferably for dyeing spools of yarn in supercritical carbon dioxide, where the textile substrate is placed in an autoclave in which the supercritical fluid containing at least one dye is caused to flow over or in it. The at least one dye is brought into contact with the supercritical fluid in loose, molten, solution and/or dispersion form to produce a stable solution of the dye in said fluid, avoiding the originally dissolved dye's deposition from the solution or the formation of dye agglomerates therein having a particle size of over 30 .mu.m and advantageously over 15 .mu.m.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: September 28, 1999
    Assignee: Amann & Sohne GmbH & Co.
    Inventors: Rudolf Eggers, Joachim von Schnitzler, Richard Huber, Gottlob Worner
  • Patent number: 5938794
    Abstract: A method for the dyeing of a textile substrate, particularly for the dyeing of a polyester yarn wound upon a bobbin, is described, in which the textile substrate to be dyed is arranged within an autoclave and superfused, respectively perfused, with a supercritical fluid containing at least one dye, whereby an auxiliary fluid is loaded with the at least one dye, whereby the auxiliary fluid in brought into contact with the supercritical fluid and whereby hereafter the textile substrate is perfused, respectively superfused, with the supercritical fluid containing the at least one dye.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: August 17, 1999
    Assignee: Amann & Sohne GmbH & Co.
    Inventors: Rudolf Eggers, Joachim von Schnitzler, Kurt Truckenmuller
  • Patent number: 5632782
    Abstract: Improved processes for the exhaust dyeing of cellulosic fibers with sulphur dyes in the presence of non-sulphide reducing agents wherein the dyeing of the textile substrate is performed in a closed vessel in an atmosphere of reduced oxygen level and then oxidizing.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: May 27, 1997
    Assignee: Clariant Finance (BVI) Ltd.
    Inventor: Mark S. Carlough
  • Patent number: 5578088
    Abstract: Process for dyeing aminated cellulose/polyester blend fabric with fiber-reactive disperse dyestuffs Fiber materials comprising cellulose fibers or a mixture of cellulose and polyester fibers are dyed by first modifying the fiber material with one or more compounds containing amino groups and then dyeing the modified fiber material with a fiber-reactive disperse dyestuff in supercritical CO.sub.2.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: November 26, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Schrell, Werner H. Russ
  • Patent number: 5298032
    Abstract: Cellulosic textile materials can be dyed with disperse dyes from supercritical CO.sub.2 by treating the textile materials with an auxiliary that promotes dye uptake, typically polyethylene glycol.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: March 29, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Schlenker, Peter Liechti, Dieter Werthemann, Angelo D. Casa
  • Patent number: 5279621
    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, characterized in that one or more monoazo dyes are used of the general formula I ##STR1## wherein X, Y, R.sup.1 and R.sup.2 are each as defined in Claim 1.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: January 18, 1994
    Assignee: Cassella AG
    Inventor: Ulrich Buhler
  • Patent number: 5269815
    Abstract: A process for the fluorescent whitening of hydrophobic textile materials, especially polyesters, wherein the textile material is treated with disperse fluorescent whitening agents in supercritical CO.sub.2.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: December 14, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Schlenker, Dieter Werthemann, Claude Eckhardt
  • Patent number: 5250078
    Abstract: Dyeing polyester textile material with disperse dyes from supercritical CO.sub.2 gives stronger dyeings by carrying out the subsequent pressure reduction in a plurality of steps.
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: October 5, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Saus, Dierk Knittel, Eckhard Schollmeyer, Hans-Jurgen Buschmann
  • 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: 5244471
    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, characterized in that one or more monoazo dyes are used of the general formula I ##STR1## where X.sup.1 to X.sup.4, Y.sup.1 to R.sup.4 and R are each as defined in claim 1.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: September 14, 1993
    Assignee: Cassella AG
    Inventor: Ulrich Buhler
  • Patent number: 5199956
    Abstract: Polyester textile material can be dyed from supercritical CO.sub.2 with special disperse dyes.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: April 6, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Schlenker, Dieter Werthemann, Peter Liechti, Angelo D. Casa
  • Patent number: 5074889
    Abstract: A diamine salt and a surfactant are imbibed into never-dried aromatic polyamide fibers which may be printed or overprinted with acid dyes, after drying.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: December 24, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James D. Hodge, Elizabeth A. Dodgson, David J. Rodini
  • Patent number: 4979963
    Abstract: This invention provides a process for coloring expandable beads of polystyrene resins which comprises suspending expandable beads of a polystyrene resin and a dye in water in a closed vessel and heating this aqueous suspension at a temperature above the softening point of the expandable beads, wherein the closed vessel is filled up almost completely with the aqueous suspension and heating is conducted without further addition of any blowing agent, whereby the expandable beads are impregnated uniformly with the dye. According to this process, uniformly colored expandable beads of polystyrene resins are obtained at a high efficiency of dye impregnation without using any impregnation aid or the like, the expandable beads being capable of forming beautiful molded foams of uniform color.
    Type: Grant
    Filed: March 24, 1989
    Date of Patent: December 25, 1990
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Junichi Nakada, Toshiaki Yamamoto, Minoru Tada, Kyoichi Nakamura
  • Patent number: 4668234
    Abstract: An aromatic polyamide fiber containing a large amount of a surfactant, sufficient to enable it to be dyed a deep shade. The high surfactant level enables the fiber to be stabilized, at low temperatures, against progressive laundry shrinkage.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: May 26, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Eric Vance, Bruce A. Barton
  • Patent number: 4666454
    Abstract: A fabric comprising polyethylene terephthalate fibers which exhibits a reduced tendency to pill upon encountering surface abrasion is formed on an expeditious basis. During the polymerization of the monomers required to form the polyethylene terephthalate, a quantity of polyethylene glycol (as described) is copolymerized therewith to form a polymer which exhibits a substantial intrinsic viscosity (as described). Following the melt-extrusion of the polymer to form fibers and fabric formation, the fabric is subjected to a dye bath at an elevated temperature wherein it is dyed, and the intrinsic viscosity of the polymer is reduced (as described). The presence of units derived from polyethylene glycol within the polymer chain has been found to lead to such intrinsic viscosity reduction within the dye bath.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: May 19, 1987
    Assignee: Celanese Corporation
    Inventors: Ronald N. DeMartino, Jeffrey T. Langley, Robert D. Johnson
  • Patent number: 4659333
    Abstract: The invention relates to a process for fixing azo, metal complex azo and formazan dyes on textile fabrics with hot steam to give stable shades, which process comprises fixing textile fabrics dyed or printed with said dyes in hot steam that contains at least 0.5% by volume of air.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: April 21, 1987
    Assignee: CIBA-GEIGY Corporation
    Inventor: Andres Schaub
  • Patent number: 4655786
    Abstract: The invention relates to a process for dyeing hydrophobic fibre material under HT conditions with unformulated disperse dyes from an aqueous liquor, which process comprises dissolving one or more such dyes in water, in the temperature range from 70.degree. to 100.degree. C., with a surfactant or mixture of surfactants which has a hydrotropic action on disperse dyes, feeding the dye solution into a dyeing apparatus which contains water heated to 70.degree. to 100.degree. C. and substrate, and subsequently heating the dye liquor to dyeing temperature, or dissolving the dye at a temperature of over 100.degree. C. under pressure by means of the surfactant or mixture of surfactants which has a hydrotropic action on the dye, feeding the solution into a closed dyeing apparatus which contains water heated to 100.degree. to 150.degree. C. and substrate, and, in both cases, carrying out dyeing in the temperature range from 120.degree. to 150.degree. C. with constant circulation of the dye liquor.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Josef Navratil, Heinz Abel
  • Patent number: 4518392
    Abstract: The invention describes a process for the HT dyeing of polyester fibre material with dyes which are sparingly soluble in water, which process comprises the use of a dyebath which contains at least one block polymer of ethylene oxide and propylene oxide having a molecular weight higher than 5000.The use of such a polymeric non-ionic dispersant ensures, even in low concentration, the stability of the dye dispersion under HT conditions, with at the same time substantial to complete bath exhaustion.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: May 21, 1985
    Assignee: Ciba Geigy Corporation
    Inventors: Hans Mollet, Paul Dussy
  • Patent number: 4432770
    Abstract: Disclosed is a method of rapid dyeing a substrate comprising polyester fibres at a temperature above 100.degree. C. comprising bringing into contact with the substrate an aqueous dyebath containing a mixture of at least two disperse dyes having each individually specific physicochemical properties.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: February 21, 1984
    Assignee: Sandoz Ltd.
    Inventors: Rolf Hasler, Beat Henzi, Ernst Schnider, Hermann Ulshoefer
  • Patent number: 4405524
    Abstract: The present invention relates to anthraquinone compounds of formula I, ##STR1## in which R.sub.1 is alkyl or cycloalkyl,R.sub.2 is hydrogen, methyl or ethyl,R.sub.3 is hydrogen or methyl,eitherR.sub.4 is hydrogen, methyl or ethyl, and Y--CO-- is the radical of an organic aliphatic aromatic or araliphatic carboxylic acid containing a total of 2 to 12 carbon atoms,orR.sub.4 together with the radical Y--CO-- and the nitrogen atom to which they are bound signify a cyclic imide of a dicarboxylic acid containing a total of 4 to 8 carbon atoms,X is a direct bond or (C.sub.1-3)alkylene,n is 0 or 1which compounds are useful as colorants. More particularly those compounds where n is 1 are useful as anionic dyestuffs and those compounds where n is 0 are useful as pigments.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: September 20, 1983
    Assignee: Sandoz Ltd.
    Inventor: Roland Wald
  • Patent number: 4274829
    Abstract: Process for the continuous dyeing of synthetic fibre materials from organic solvents, wherein the material, preheated to at least 100.degree. C., is impregnated with a halogenated hydrocarbon impregnating liquor containing dyestuff or optical brightener to give a liquor absorption of more than 100%, and is then passed through a vapor zone filled with halogenated hydrocarbon at a temperature above the boiling point of the halogenated hydrocarbon in such a manner that during passage of the material through this zone the liquor becomes concentrated on the material, whereby(a) the amount of solvent on the material is not increased by condensation of halogenated hydrocarbon vapor, and(b) more than 5% of liquor is present on the material when it emerges from the vapor zone, so that the material during its passage through this vapor zone never becomes dry.
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: June 23, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Jacques Zurbuchen
  • Patent number: 4255154
    Abstract: Described is a process for the level dyeing of polyester material by the aqueous exhaust method at temperatures above 100.degree. C., which comprises the use of an aqueous dye liquor which contains at least one migrating disperse dye as well as further ingredients. As migrating disperse dye, preferably a dye is used which has a diffusion coefficient Do at 130.degree. C. of 2 to 10.times.10.sup.-10 cm.sup.2 /sec, a distribution coefficient K at 130.degree. C. of 20 to 500 1/kg, and a migration half-life t/2 less then 50 minutes.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 10, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Jacques Zurbuchen, Paul Dussy