[go: up one dir, main page]

WO2003064752A1 - Composes chimiques et procedes permettant de supprimer la teinte - Google Patents

Composes chimiques et procedes permettant de supprimer la teinte Download PDF

Info

Publication number
WO2003064752A1
WO2003064752A1 PCT/US2003/003046 US0303046W WO03064752A1 WO 2003064752 A1 WO2003064752 A1 WO 2003064752A1 US 0303046 W US0303046 W US 0303046W WO 03064752 A1 WO03064752 A1 WO 03064752A1
Authority
WO
WIPO (PCT)
Prior art keywords
leveling
dye
polyester
mixture
composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2003/003046
Other languages
English (en)
Inventor
Raymond A. Berard
Connie D. Hensler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Interface Inc
Original Assignee
Interface Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interface Inc filed Critical Interface Inc
Priority to EP03706030A priority Critical patent/EP1476600A4/fr
Priority to BR0302963A priority patent/BR0302963A/pt
Priority to CA002476774A priority patent/CA2476774A1/fr
Priority to US10/505,248 priority patent/US20050198742A1/en
Publication of WO2003064752A1 publication Critical patent/WO2003064752A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/13—Fugitive dyeing or stripping dyes
    • D06P5/137—Fugitive dyeing or stripping dyes with other compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/42—Ethers, e.g. polyglycol ethers of alcohols or phenols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0293—Dissolving the materials in gases or liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/731—Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
    • D06P1/613—Polyethers without nitrogen
    • D06P1/6138—Polymerisation products of glycols, e.g. Carbowax, Pluronics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642—Compounds containing nitrogen
    • D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
    • D06P1/6495—Compounds containing carbonamide -RCON= (R=H or hydrocarbons)
    • D06P1/6498—Compounds containing -CONCO-, e.g. phthalimides, hydantoine; Compounds containing RCONHSO2R (R=H or hydrocarbon)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65118—Compounds containing hydroxyl groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65131—Compounds containing ether or acetal groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • This invention relates to chemical compounds and methods for removing dye from polyester fibers, and more particularly to removing dye from panel fabric made from recycled poly(ethylene terephthalate) fibers.
  • Panel fabric also known as vertical fabric, is used in furniture upholstery, wall systems and tackboards. Panel fabric is increasingly produced from synthetic materials such as polyester, most commonly PET (poly(ethylene terephthalate)). Panel fabric is replaced periodically and as a result, is often discarded in landfills. Many of the materials used in panel fabric are not biodegradable; thus disposal of it contributes to the environmental problems that arise from the over-use of landfills.
  • the PET in the panel fabric would be recycled into fiber that can be reused, e.g., suitable for weaving into new panel fabric. In this way, the material is not only rendered recyclable, but recyclable in a sustainable fashion, decreasing the need for virgin PET or PET recycled from bottles, which can then be put to other uses.
  • any PET that may be recovered when garnetted into loose fibers is unsuitable for significant reuse in panel fabric and carpet manufacturing.
  • the staple fiber is generally too short to be reused in the yarn spinning process at more than about 3%. If the fibers could be melted, pelletized and extruded into full-length fiber, they could be recycled at about 100%.
  • the presence of dyes in the fibers makes them difficult to melt and extrude. The dye molecules char and burn at extrusion temperatures, forming a residue that blocks the extrusion spinnerets. As a result, a process capable of removing dye before extrusion is needed.
  • the invention solves some or all of the above mentioned problems by providing methods and compositions for removing dye molecules from polyester, PET in particular.
  • the invention allows the PET to be reused by pelletizing and extruding it into fiber suitable for panel fabric or other applications calling for virgin PET, without disrupting the extrusion process by dye molecule charring.
  • the invention addresses the problem of downcycling the PET in panel fabric by providing a way to use recycled PET that is economically and environmentally of the same value as the panel fabric itself.
  • the PET can be melted, extruded and reused as panel fabric.
  • the invention is an improvement over existing processes because it completely removes the dye molecules from the PET, instead of breaking only the chromophore of the dye.
  • the PET may be melted and extruded, without remaining dye molecules burning or blocking the extrusion spimierets.
  • the method of the present invention does not damage the PET by swelling.
  • a method for removing dye from polyester fiber or fabric by contacting the polyester with a dye removal composition containing an aqueous solution of at least one leveling agent; heating the mixture of polyester and dye removal composition until it reaches an elevated temperature and pressure level higher than the equilibrium pressure of the dye removal composition at the elevated temperature; cooling the mixture; and removing the decolorized polyester from the mixture.
  • a composition for removing dye from polyester includes an aqueous solution of about 0.5 wt% to about 8.0 wt% of at least one leveling agent.
  • the invention in another embodiment, relates to a device for removing dye from polyester according to the present invention.
  • the device includes a sealable vessel and a dye removal composition.
  • the dye removal composition includes an aqueous solution of about 0.5 wt% to about 8.0 wt% of at least one leveling agent.
  • the invention is also directed to a method for recycling panel fabric comprising polyester.
  • the method involves removing from the fabric any structural elements, removing the dye from the fabric using a dye removal composition comprising an aqueous solution of at least one leveling agent, recovering the polyester fibers, melting the fibers, pelletizing the melted fiber and extruding the pellets into full-length fiber.
  • the dye removal composition comprises at least one leveling agent selected from the group consisting of anionic leveling agents, nonionic leveling agents and mixtures thereof.
  • the dye removal composition further comprises at least one chemical selected from the group consisting of scouring agents, wetting agents and leveling carriers.
  • Leveling agents may perform one or more of these functions in addition to their function as leveling agents.
  • the invention provides for a method of removing dye molecules from polyester fiber, and is particularly useful with PET fiber.
  • the polyester may be used in the process as woven fabric or, alternatively, garnetted into loose fibers.
  • the polyester is contacted with a dye removal composition comprising an aqueous solution of at least one leveling agent. This may be conveniently done in a standard dyeing vessel commonly used for disperse dyeing of polyester, which is sealable and temperature controlled.
  • Effective leveling agents have good wetting, emulsifying and dispersing properties and will prevent redeposition. A leveling agent that promotes maximum coverage and color yield is also desirable. Leveling agents particularly suited for high temperature polyester dyeing will generally be suitable for the present invention. Effective leveling agents can also inhibit cationic dye from staining and settling on the walls of stainless steel equipments.
  • the dye removal composition comprises an aqueous solution of at least one leveling agent. Suitable leveling agents include anionic leveling agents, nonionic leveling agents and mixtures thereof.
  • the dye removal composition may further comprise leveling carriers, scouring agents and mixtures thereof. In a particular embodiment of the invention, the scouring agent or wetting agent is nonionic. In another embodiment of the invention, the leveling carrier comprises a nonionic leveling carrier.
  • suitable leveling agents include those that comprise alkyl polyglycol ether, isopropyl alcohol, n-butyl phthalimide or nonyl phenol ethoxylate.
  • suitable leveling carriers include those containing alkyl phthalimide.
  • suitable scouring agents include scouring agents containing polyoxyethene ether or propylene glycol ether.
  • the dye removal composition comprises isopropyl alcohol, n-butyl phthalimide, nonyl phenol ethoxylate, and propylene glycol ether.
  • Particular leveling agents that may be used for the present invention include AVOLAN IW LIQUIDTM nonionic leveling agent and scouring agent (Bayer, Pittsburgh, PA), DIADAVIN UFNTM nonionic leveling wetting and scouring agent (Bayer, Pittsburgh, PA), LEVEGAL EAP-4TM leveling carrier (Bayer, Pittsburgh, PA), RAYCAPOL TDA-33 scouring agent (Clariant, Chicago, IL), RAYCALEV DTM (leveling agent), CAROLID NOL leveling agent (Bayer, Pittsburgh, PA) and RICHLEV D leveling agent (Richchem, High Point, NC), BURCO SOUR LFE-810TM scouring agent (Burlington Chemical Co., Burlington, NC).
  • AVOLAN IW LIQUIDTM nonionic leveling agent and scouring agent Bayer, Pittsburgh, PA
  • DIADAVIN UFNTM nonionic leveling wetting and scouring agent Bayer, Pittsburgh, PA
  • the leveling agents When mixed with water or aqueous solution, the leveling agents can be used in weight ratios ranging from (under certain conditions) about 0.5% to as high as about 8.0% of leveling agent : water. However, particularly desirable results are achieved when the leveling agent(s) is present in an amount ranging from about 2.0 wt% to about 8.0 wt% of the total solution of leveling agents.
  • An approximately 4.0 wt% aqueous solution of leveling agent(s) has been found to be particularly suitable for most applications. More particularly, an approximately 4.0 wt% solution comprising propylene glycol ether, isopropyl alcohol, n-butyl phthalimide and nonyl phenol ethoxylate and water has been found to be suitable for most applications.
  • the polyester to be decolorized is separated from any structural elements and placed in a sealable vessel.
  • the polyester may be woven fabric or loose fibers.
  • Water and a dye removal composition comprising at least one leveling agent are added to a vessel at a temperature of about 20°C to about 25°C.
  • any vessel made of a nonreactive material and sealable may be used in place of a standard dyeing vessel.
  • the mixture of the polyester and dye removal composition are heated for a period of about 120 minutes. Because the vessel is sealed, as the temperature increases, there is a corresponding rise in the pressure. Thus, the pressure is higher than the equilibrium pressure of the dye removal composition at the elevated temperature.
  • the pressure has reached about 28 psi to about 39 psi, more particularly about 33 psi, and the temperature has reached about 135°C to about 145°C, more particularly
  • the vessel is maintained at that pressure and temperature for about 30 minutes to about 60 minutes, more particularly about 45 minutes.
  • the vessel may be agitated during the period when the polyester is first contacted with the dye removal composition, when it is heated, during the holding period when the temperature and pressure are maintained, or any combination of these three. Agitation can be achieved, for example, by rolling the vessel or by continuously pumping the dye removal composition through the polyester.
  • the holding stage is typically followed by a cooling down period of about 20 minutes to about 40 minutes wherein the temperature is decreased to about 20°C to about 50°C, more particularly 30°C.
  • the mixture should be cooled rapidly to prevent or limit reabsorption of the dye by the polyester.
  • the times and temperatures may vary somewhat depending upon the dyestuff and the leveling agent chosen, but will generally fall within the above ranges for most commonly encountered dyes.
  • the decolorized polyester is then removed from the mixture. Any residual dye removal composition should be removed from the polyester, in order to further limit the chance of reabsorption. This can often be achieved by rinsing thoroughly with water.
  • This cycle may be repeated as needed to remove additional dye from the polyester fiber or fabric.
  • Those with skill in the art will recognize that more intense colors may require additional cycles to sufficiently decolorize the polyester.
  • the method may be carried out as a batch, sequential batch semi-continuous or continuous process.
  • the invention may be used to recycle panel fabric made from polyester.
  • the invention is also useful for recycling panel fabric made from polyester that has already been recycled, such as recycled PET.
  • To recycle panel fabric it should first be separated from any structural elements.
  • the fabric can be, but is not required to be garnetted into loose fibers.
  • any dye should be removed using a dye removal composition comprising an aqueous solution of at least one leveling agent. Once the dye has been removed, the polyester fibers can be recovered. The fibers can be melted and pelletized before being extruded into full-length fiber.
  • Panel fabric may be created by weaving the recycled fiber.
  • the process was carried out in an Ahiba Polymat dyeing machine in sealed vessels. Fifty (50) mL of water was added to an empty vessel. Four (4.0) mL of each of the following chemicals were also added to the vessel: CAROLID NOLTM leveling agent, BURCO SCOUR LFE-810TM scouring agent, and RICHLEV DTM leveling agent. Approximately 5.00 g of polyester was placed into the vessel. Fifty (50) mL of water was added to the vessel to cover the polyester. The vessel was sealed. The vessel was rolled to agitate the mixture. The temperature was raised from room temperature (about 22°C) to 50°C. The temperature was held at 50°C for
  • the process was carried out in an Ahiba Polymat dyeing machine in sealed vessels. Fifty (50) mL of water was added to an empty vessel. Four (4.0) mL of each of the following chemicals were also added to the vessel: AVOLAN IW LIQUIDTM leveling agent, DIADAVIN UFNTM scouring agent, LEVEGAL EAP-4TM leveling carrier and RAYCALEV DTM leveling agent. Approximately 5.00 g of polyester was placed into the vessel. Fifty (50) mL of water was added to the vessel to cover the polyester. The vessel was sealed. The vessel was rolled to agitate the mixture. The temperature was raised from room temperature (about 22°C)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Coloring (AREA)

Abstract

La présente invention concerne des composés chimiques et des procédés permettant de supprimer la teinte de fibres de polyester, en particulier de fibres de poly(éthylène téréphtalate) (PET). Ces composés et ces procédés conviennent particulièrement pour supprimer la teinte de tissu pour panneau amovible fabriqués à partir de fibres de PET recyclées. Ce procédé consiste à mettre en contact le PET avec un composé supprimant la teinte dans une cuve qu'on peut sceller. Les contenus de cette cuve sont agités et chauffés de façon à obtenir une augmentation de température et de pression. Suite à une période de refroidissement, le PET est retiré et rincé avec de l'eau. Le composé supprimant la teinte comprend une solution aqueuse d'au moins un agent d'étalement.
PCT/US2003/003046 2002-02-01 2003-01-31 Composes chimiques et procedes permettant de supprimer la teinte Ceased WO2003064752A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03706030A EP1476600A4 (fr) 2002-02-01 2003-01-31 Composes chimiques et procedes permettant de supprimer la teinte
BR0302963A BR0302963A (pt) 2002-02-01 2003-01-31 Compostos quìmicos e métodos para remoção de corante
CA002476774A CA2476774A1 (fr) 2002-02-01 2003-01-31 Composes chimiques et procedes permettant de supprimer la teinte
US10/505,248 US20050198742A1 (en) 2002-02-01 2003-01-31 Chemical compounds and methods for removing dye

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35331102P 2002-02-01 2002-02-01
US60/353,311 2002-02-01

Publications (1)

Publication Number Publication Date
WO2003064752A1 true WO2003064752A1 (fr) 2003-08-07

Family

ID=27663193

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/003046 Ceased WO2003064752A1 (fr) 2002-02-01 2003-01-31 Composes chimiques et procedes permettant de supprimer la teinte

Country Status (5)

Country Link
US (1) US20050198742A1 (fr)
EP (1) EP1476600A4 (fr)
BR (1) BR0302963A (fr)
CA (1) CA2476774A1 (fr)
WO (1) WO2003064752A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104420191A (zh) * 2013-09-04 2015-03-18 远东新世纪股份有限公司 经染料着色的聚酯纤维的脱色方法
CN111607956A (zh) * 2019-02-22 2020-09-01 南亚塑胶工业股份有限公司 一种经染色的聚酯纤维脱色方法
US20220267950A1 (en) * 2021-02-24 2022-08-25 Nan Ya Plastics Corporation Decolorization method for dyed fiber cloth
US12157796B2 (en) 2019-04-15 2024-12-03 Shintech Corporation Method for producing decolored polyester, decolored polyester, and decoloring agent
US12331458B2 (en) 2022-12-27 2025-06-17 Industrial Technology Research Institute Method for decolorizing polyester fabric and polyester fabric

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2394225A (en) * 2002-10-16 2004-04-21 Colormatrix Europe Ltd Polymer colourant additive composition
US8211341B2 (en) * 2007-11-16 2012-07-03 Exxonmobil Research And Engineering Company Fiber pellets method of making, and use in making fiber reinforced polypropylene composites
WO2014047620A1 (fr) 2012-09-24 2014-03-27 RADCO Infusion Technologies, LLC Elimination des couleurs de thermoplastiques
US20210071358A1 (en) * 2019-09-09 2021-03-11 Revolaze, LLC Scouring Process for Ring Dyed Denim Fabric and Material Produced Thereof
CN115843291A (zh) * 2020-06-29 2023-03-24 辛特克株式会社 高纯度双-（2-羟乙基）对苯二甲酸酯的制造方法、再生聚对苯二甲酸乙二酯、脱色溶剂及双-（2-羟乙基）对苯二甲酸酯的精制方法
CN112219470A (zh) * 2020-09-29 2021-01-15 安徽灵杨机械装备股份有限公司 一种播种机的导向机构以及播种机
WO2024260976A1 (fr) * 2023-06-19 2024-12-26 Basf Se Procédé de recyclage d'un matériau polymère coloré et produit d'extrusion obtenu à partir de celui-ci

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722738A (en) * 1984-02-27 1988-02-02 Crucible Chemical Company Process to decolorize dye composition and method of use thereof for coloring thermoplastic articles
US5972038A (en) * 1994-08-30 1999-10-26 The Procter & Gamble Company Chelant enhanced photobleaching
US6048367A (en) * 1997-12-23 2000-04-11 Novo Nordisk A/S Process for removal of excess dye from printed or dyed fabric or yarn

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH748767A4 (fr) * 1967-05-26 1969-12-15
GB1445168A (en) * 1973-11-14 1976-08-04 Horizons Research Inc Process for recovery of clean polyester materials
US4227881A (en) * 1978-11-17 1980-10-14 Royce Chemical Company New process of color stripping dyed textile fabric
US4435473A (en) * 1980-04-02 1984-03-06 Ppg Industries, Inc. Aqueous peroxide emulsion for use with glass fibers
EP0131558A3 (fr) * 1983-07-06 1986-06-11 Bergvik Kemi AB Agent dispersant
US4783193A (en) * 1985-06-10 1988-11-08 Laury Pensa Composition and process for stripping color from synthetic polymer products
DE3734159A1 (de) * 1987-10-09 1989-04-20 Bayer Ag Egalisiermittel
DE3940704A1 (de) * 1989-12-08 1991-06-13 Aps Apotheker H Starke Gmbh Badzusatz und dessen verwendung
EP0483571B1 (fr) * 1990-10-30 1995-02-01 BK LADENBURG GmbH, Gesellschaft für chemische Erzeugnisse Procédé pour le recyclage de fibres par désencrage par flotation de vieux papiers
WO1996008598A1 (fr) * 1994-09-12 1996-03-21 Ppg Industries, Inc. Composition et methode de desencrage pour desencrage de vieux papiers
US5972049A (en) * 1998-01-28 1999-10-26 Sybron Chemicals Inc. Clay-containing dispersing composition for carriers used in the disperse dyeing of hydrophobic textiles
US5900392A (en) * 1998-07-24 1999-05-04 Loeffler Chemical Corporation Aqueous belt lubricant composition based on fatty alkyl propylene tettramines and fatty alcohol polyglycol ethers and method for lubricating belt conveyor systems
US6313182B1 (en) * 1999-05-04 2001-11-06 Air Products And Chemicals, Inc. Acetylenic diol ethylene oxide/propylene oxide adducts and processes for their manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722738A (en) * 1984-02-27 1988-02-02 Crucible Chemical Company Process to decolorize dye composition and method of use thereof for coloring thermoplastic articles
US5972038A (en) * 1994-08-30 1999-10-26 The Procter & Gamble Company Chelant enhanced photobleaching
US6048367A (en) * 1997-12-23 2000-04-11 Novo Nordisk A/S Process for removal of excess dye from printed or dyed fabric or yarn

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1476600A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104420191A (zh) * 2013-09-04 2015-03-18 远东新世纪股份有限公司 经染料着色的聚酯纤维的脱色方法
CN111607956A (zh) * 2019-02-22 2020-09-01 南亚塑胶工业股份有限公司 一种经染色的聚酯纤维脱色方法
US12157796B2 (en) 2019-04-15 2024-12-03 Shintech Corporation Method for producing decolored polyester, decolored polyester, and decoloring agent
US20220267950A1 (en) * 2021-02-24 2022-08-25 Nan Ya Plastics Corporation Decolorization method for dyed fiber cloth
US12331458B2 (en) 2022-12-27 2025-06-17 Industrial Technology Research Institute Method for decolorizing polyester fabric and polyester fabric

Also Published As

Publication number Publication date
EP1476600A4 (fr) 2007-03-28
EP1476600A1 (fr) 2004-11-17
CA2476774A1 (fr) 2003-08-07
US20050198742A1 (en) 2005-09-15
BR0302963A (pt) 2004-08-03

Similar Documents

Publication Publication Date Title
US20050198742A1 (en) Chemical compounds and methods for removing dye
RU2761472C2 (ru) Переработка сложнополиэфирных текстильных отходов
KR101068418B1 (ko) 생분해 가능한 에테르 드라이 클리닝 용매
US4003880A (en) Fabric dye stripping, separation and recovery of polyester
US4977191A (en) Water-soluble or water-dispersible polyester sizing compositions
CA1094249A (fr) Recuperation de polymeres de polyester formant des fibres teintes de polyester
JP4908415B2 (ja) 染着ポリエステル繊維からの有用成分製造方法
US5820982A (en) Sulfoaryl modified water-soluble or water-dispersible resins from polyethylene terephthalate or terephthalates
US4064079A (en) Polyester polymer recovery
AU2001275510A1 (en) Biodegradable ether dry cleaning solvent
CN109322002A (zh) 一种生物可降解聚酯织物及其制备方法
CN110273197A (zh) 一种废弃绦纶纺织物生产的再生彩纱及其制备方法
KR101170658B1 (ko) 생분해 가능한 에테르 드라이 클리닝 용매
AU2003207793A1 (en) Chemical compounds and methods for removing dye
WO1999067350A1 (fr) Procede empechant la teinture de se redeposer pendant le lavage d'un textile
JP3731009B2 (ja) ポリプロピレン系樹脂廃材の再生成形体及びその再生方法
US6844307B1 (en) Compositions to reduce textile contaminants and associated processing methods
Imafuku An alkaline dyeing system for polyester
JP2010174216A (ja) ポリアルキレンテレフタレート繊維からの異素材除去方法
EP1846610B1 (fr) Agent dispersant pour des oligomeres polyesters
JPH08199472A (ja) 繊維用精練洗浄剤組成物
JPS6132439B2 (fr)
KR102192958B1 (ko) 폐스판덱스의 해중합을 이용한 자원 재활용방법
WO2006036823A2 (fr) Enlevement de colorant de fibres polymeres
WO2024204774A1 (fr) Procédé de production de polyester recyclé et procédé de production d'un matériau composite à base de polyesters

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 10505248

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2003706030

Country of ref document: EP

Ref document number: 2003207793

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2476774

Country of ref document: CA

WWP Wipo information: published in national office

Ref document number: 2003706030

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: JP