Confined Gas Phase Superatmospheric Pressure Dyeing Process (other Than Steam Below 138 Degrees C.) Patents (Class 8/475)
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Patent number: 11168424Abstract: 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: GrantFiled: December 29, 2016Date of Patent: November 9, 2021Assignee: QINGDAO JIFA GROUP CO., LTD.Inventors: Jian Wang, Weidong Yang, Gang Wan, Chongbo Liu, Shaobing Liu, Dapeng Lin
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Patent number: 11015289Abstract: 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: GrantFiled: October 25, 2017Date of Patent: May 25, 2021Inventor: Swapneshu Ashok Baser
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Patent number: 10895902Abstract: 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: GrantFiled: February 26, 2018Date of Patent: January 19, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Pasquale A. Catalano, Casimer M. DeCusatis, Rajaram B. Krishnamurthy, Michael Onghena, Anuradha Rao
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Patent number: 10480123Abstract: 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: GrantFiled: February 19, 2016Date of Patent: November 19, 2019Assignee: NIKE, Inc.Inventors: Matt W. Kelly, Gerardo A. Montero, Anand P. Kanchagar, Pankaj Rugnath Panchmatia
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Publication number: 20150052692Abstract: 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: ApplicationFiled: February 17, 2014Publication date: February 26, 2015Applicant: HONG KONG PRODUCTIVITY COUNCILInventors: Kwok Keung Lee, Songying Mo, Johnny Chi Kai Ho, Tik Lam Cheung
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Patent number: 8607392Abstract: 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: GrantFiled: October 5, 2006Date of Patent: December 17, 2013Assignee: Columbia Insurance CompanyInventors: Dennis J. Jones, Jr., Chad Anderson
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Patent number: 8551190Abstract: 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: GrantFiled: February 28, 2013Date of Patent: October 8, 2013Assignee: Henkel AG & Co. KGaAInventors: Frank Janssen, Juergen Schoepgens
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Patent number: 8545575Abstract: 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: GrantFiled: February 28, 2013Date of Patent: October 1, 2013Assignee: Henkel AG & Co. KGaAInventor: Frank Janssen
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Patent number: 8545576Abstract: 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: GrantFiled: March 1, 2013Date of Patent: October 1, 2013Assignee: Henkel AG & Co., KGaAInventors: Frank Janssen, Juergen Schoepgens
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Patent number: 8439982Abstract: 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: GrantFiled: August 27, 2010Date of Patent: May 14, 2013Assignee: Empire Technology Development LLCInventor: Thomas A. Yager
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Publication number: 20120159720Abstract: 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: ApplicationFiled: March 6, 2012Publication date: June 28, 2012Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventors: William B. CARLSON, Gregory D. PHELAN, Philip A. SULLIVAN
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Patent number: 8192507Abstract: 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: GrantFiled: March 6, 2012Date of Patent: June 5, 2012Assignee: Empire Technology Development LLCInventors: William B. Carlson, Gregory D. Phelan, Philip A. Sullivan
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Patent number: 8152862Abstract: 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: GrantFiled: August 6, 2010Date of Patent: April 10, 2012Assignee: Empire Technology Development LLCInventors: William B. Carlson, Gregory D. Phelan, Philip A. Sullivan
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Publication number: 20120030884Abstract: 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: ApplicationFiled: August 6, 2010Publication date: February 9, 2012Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventors: William B. Carlson, Gregory D. Phelan, Philip A. Sullivan
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Publication number: 20110138547Abstract: 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: ApplicationFiled: February 8, 2011Publication date: June 16, 2011Inventors: Maria Vanesa FERNANDEZ CID, Geert Jan Witkamp, Kathryn Nicole Teesink-Gerstner, Wilhelmus Johannes Theodorus Veugelers, Geert Feye Woerlee
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Patent number: 7938865Abstract: 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: GrantFiled: November 4, 2005Date of Patent: May 10, 2011Assignee: Feyecon Development & Implementation B.V.Inventors: Maria Vanesa Fernandez Cid, Geert Jan Witkamp, Kathryn Nicole Teesink-Gerstner, Wilhelmus Johannes Theodorus Veugelers, Geert Feye Woerlee
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Patent number: 7731763Abstract: 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: GrantFiled: November 4, 2005Date of Patent: June 8, 2010Assignee: Feyecon Development & Implementation B.V.Inventors: Maria Vanesa Fernandez Cid, Geert Jan Witkamp, Geert Feye Woerlee, Wilhelmus Johannes Theodorus Veugelers
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Patent number: 6676710Abstract: 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: GrantFiled: December 4, 2000Date of Patent: January 13, 2004Assignee: North Carolina State UniversityInventors: Carl Brent Smith, Walter A. Hendrix, Donald L. Butcher
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Patent number: 6620211Abstract: 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: GrantFiled: February 9, 2001Date of Patent: September 16, 2003Assignee: Stork Prints B.V.Inventors: Wilhelmus J. T. Veugelers, Geert Feye Woerlee, Hendrik Gooijer, Jan Willem Gerritsen
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Patent number: 6615620Abstract: 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: GrantFiled: June 25, 2001Date of Patent: September 9, 2003Assignee: North Carolina State UniversityInventors: Walter A. Hendrix, Gerardo A. Montero, C. Brent Smith, Donald L. Butcher
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Patent number: 6517589Abstract: 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: GrantFiled: November 14, 2000Date of Patent: February 11, 2003Assignee: China Textile InstituteInventors: Po-Hsiung Huang, Hung-En Chen, Jung-Shen Lien
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Patent number: 6261326Abstract: 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: GrantFiled: January 13, 2000Date of Patent: July 17, 2001Assignee: North Carolina State UniversityInventors: Walter A. Hendrix, Gerardo A. Montero, C. Brent Smith, Donald L. Butcher
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Patent number: 6048369Abstract: 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: GrantFiled: September 29, 1998Date of Patent: April 11, 2000Assignee: North Carolina State UniversityInventors: Carl Brent Smith, Gerardo A. Montero, Walter A. Hendrix
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Patent number: 6010542Abstract: 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: GrantFiled: August 28, 1998Date of Patent: January 4, 2000Assignee: Micell Technologies, Inc.Inventors: James P. DeYoung, James B. McClain, Joseph M. DeSimone, Timothy J. Romack
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Patent number: 5972045Abstract: 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: GrantFiled: January 22, 1998Date of Patent: October 26, 1999Assignee: Amann & Sohne GmbH & Co.Inventors: Rudolf Eggers, Joachim von Schnitzler, Gottlob Worner
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Patent number: 5958085Abstract: 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: GrantFiled: March 11, 1998Date of Patent: September 28, 1999Assignee: Amann & Sohne GmbH & Co.Inventors: Rudolf Eggers, Joachim von Schnitzler, Richard Huber, Gottlob Worner
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Patent number: 5938794Abstract: 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: GrantFiled: November 18, 1997Date of Patent: August 17, 1999Assignee: Amann & Sohne GmbH & Co.Inventors: Rudolf Eggers, Joachim von Schnitzler, Kurt Truckenmuller
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Patent number: 5632782Abstract: 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: GrantFiled: August 23, 1995Date of Patent: May 27, 1997Assignee: Clariant Finance (BVI) Ltd.Inventor: Mark S. Carlough
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Patent number: 5578088Abstract: 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: GrantFiled: June 29, 1995Date of Patent: November 26, 1996Assignee: Hoechst AktiengesellschaftInventors: Andreas Schrell, Werner H. Russ
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Patent number: 5298032Abstract: 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: GrantFiled: September 8, 1992Date of Patent: March 29, 1994Assignee: Ciba-Geigy CorporationInventors: Wolfgang Schlenker, Peter Liechti, Dieter Werthemann, Angelo D. Casa
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Patent number: 5279621Abstract: 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: GrantFiled: February 18, 1992Date of Patent: January 18, 1994Assignee: Cassella AGInventor: Ulrich Buhler
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Patent number: 5269815Abstract: 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: GrantFiled: November 13, 1992Date of Patent: December 14, 1993Assignee: Ciba-Geigy CorporationInventors: Wolfgang Schlenker, Dieter Werthemann, Claude Eckhardt
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Patent number: 5250078Abstract: 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: GrantFiled: May 12, 1992Date of Patent: October 5, 1993Assignee: Ciba-Geigy CorporationInventors: Wolfgang Saus, Dierk Knittel, Eckhard Schollmeyer, Hans-Jurgen Buschmann
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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: 5244471Abstract: 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: GrantFiled: January 29, 1992Date of Patent: September 14, 1993Assignee: Cassella AGInventor: Ulrich Buhler
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Patent number: 5199956Abstract: Polyester textile material can be dyed from supercritical CO.sub.2 with special disperse dyes.Type: GrantFiled: August 28, 1991Date of Patent: April 6, 1993Assignee: Ciba-Geigy CorporationInventors: Wolfgang Schlenker, Dieter Werthemann, Peter Liechti, Angelo D. Casa
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Patent number: 5074889Abstract: 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: GrantFiled: June 13, 1990Date of Patent: December 24, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: James D. Hodge, Elizabeth A. Dodgson, David J. Rodini
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Patent number: 4979963Abstract: 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: GrantFiled: March 24, 1989Date of Patent: December 25, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Junichi Nakada, Toshiaki Yamamoto, Minoru Tada, Kyoichi Nakamura
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Patent number: 4668234Abstract: 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: GrantFiled: June 12, 1986Date of Patent: May 26, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: Eric Vance, Bruce A. Barton
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Patent number: 4666454Abstract: 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: GrantFiled: September 9, 1985Date of Patent: May 19, 1987Assignee: Celanese CorporationInventors: Ronald N. DeMartino, Jeffrey T. Langley, Robert D. Johnson
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Patent number: 4659333Abstract: 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: GrantFiled: August 29, 1985Date of Patent: April 21, 1987Assignee: CIBA-GEIGY CorporationInventor: Andres Schaub
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Patent number: 4655786Abstract: 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: GrantFiled: November 8, 1984Date of Patent: April 7, 1987Assignee: Ciba-Geigy CorporationInventors: Josef Navratil, Heinz Abel
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Patent number: 4518392Abstract: 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: GrantFiled: July 8, 1983Date of Patent: May 21, 1985Assignee: Ciba Geigy CorporationInventors: Hans Mollet, Paul Dussy
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Patent number: 4432770Abstract: 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: GrantFiled: November 17, 1982Date of Patent: February 21, 1984Assignee: Sandoz Ltd.Inventors: Rolf Hasler, Beat Henzi, Ernst Schnider, Hermann Ulshoefer
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Patent number: 4405524Abstract: 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: GrantFiled: March 23, 1979Date of Patent: September 20, 1983Assignee: Sandoz Ltd.Inventor: Roland Wald
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Patent number: 4274829Abstract: 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: GrantFiled: October 4, 1978Date of Patent: June 23, 1981Assignee: Ciba-Geigy CorporationInventor: Jacques Zurbuchen
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Patent number: 4255154Abstract: 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: GrantFiled: June 18, 1979Date of Patent: March 10, 1981Assignee: Ciba-Geigy CorporationInventors: Jacques Zurbuchen, Paul Dussy