TWI788006B - 聚酯棉花混紡織物的回收方法 - Google Patents
聚酯棉花混紡織物的回收方法 Download PDFInfo
- Publication number
- TWI788006B TWI788006B TW110133886A TW110133886A TWI788006B TW I788006 B TWI788006 B TW I788006B TW 110133886 A TW110133886 A TW 110133886A TW 110133886 A TW110133886 A TW 110133886A TW I788006 B TWI788006 B TW I788006B
- Authority
- TW
- Taiwan
- Prior art keywords
- polyester
- acid
- cotton blended
- cotton
- fabric
- Prior art date
Links
- 229920000742 Cotton Polymers 0.000 title claims abstract description 98
- 239000004744 fabric Substances 0.000 title claims abstract description 93
- 229920000728 polyester Polymers 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004064 recycling Methods 0.000 title claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 34
- 230000002378 acidificating effect Effects 0.000 claims abstract description 28
- 239000007800 oxidant agent Substances 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000002791 soaking Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000000975 dye Substances 0.000 claims description 27
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 15
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 12
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 150000007524 organic acids Chemical class 0.000 claims description 9
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 8
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 7
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 6
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 6
- 239000011976 maleic acid Substances 0.000 claims description 6
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 6
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 6
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 235000006408 oxalic acid Nutrition 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 3
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 claims description 3
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 3
- 239000005711 Benzoic acid Substances 0.000 claims description 3
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- 150000008065 acid anhydrides Chemical class 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 3
- 235000010233 benzoic acid Nutrition 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 3
- YALMXYPQBUJUME-UHFFFAOYSA-L calcium chlorate Chemical compound [Ca+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O YALMXYPQBUJUME-UHFFFAOYSA-L 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 235000005985 organic acids Nutrition 0.000 claims description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- 229960001922 sodium perborate Drugs 0.000 claims description 3
- 229940005605 valeric acid Drugs 0.000 claims description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 2
- NZNMSOFKMUBTKW-UHFFFAOYSA-N cyclohexanecarboxylic acid Chemical compound OC(=O)C1CCCCC1 NZNMSOFKMUBTKW-UHFFFAOYSA-N 0.000 claims 2
- VZFUCHSFHOYXIS-UHFFFAOYSA-N cycloheptane carboxylic acid Natural products OC(=O)C1CCCCCC1 VZFUCHSFHOYXIS-UHFFFAOYSA-N 0.000 claims 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 33
- 239000005020 polyethylene terephthalate Substances 0.000 description 33
- 239000002002 slurry Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000835 fiber Substances 0.000 description 9
- 238000004042 decolorization Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- FPIQZBQZKBKLEI-UHFFFAOYSA-N ethyl 1-[[2-chloroethyl(nitroso)carbamoyl]amino]cyclohexane-1-carboxylate Chemical compound ClCCN(N=O)C(=O)NC1(C(=O)OCC)CCCCC1 FPIQZBQZKBKLEI-UHFFFAOYSA-N 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical class ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/70—Chemical treatment, e.g. pH adjustment or oxidation
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/192—Polycarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/203—Unsaturated carboxylic acids; Anhydrides, halides or salts thereof
-
- 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
- D06P5/131—Fugitive dyeing or stripping dyes with acids or bases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/75—Plastic waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/85—Paper; Wood; Fabrics, e.g. cloths
-
- 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
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
-
- 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
- B29L2031/726—Fabrics
-
- 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
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Toxicology (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Coloring (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Detergent Compositions (AREA)
Abstract
本發明提供一種聚酯棉花混紡織物的回收方法，包括以下步驟。將含有染料的聚酯棉花混紡織物放入含有氧化劑的酸性水溶液中進行升溫與浸洗，以裂解聚酯棉花混紡織物中的棉花成粉狀，並同時進行脫色以去除染料。之後，以二道過濾方式取得聚酯織物與棉粉。
Description
本發明是有關於一種織物的回收方法，且特別是有關於一種聚酯棉花混紡織物的回收方法。
關於聚酯棉花混紡織物的回收再利用技術，必須先將棉花分離以及除色後，混紡織物中的聚酯與棉花才能回收再使用。在分離程序中，習知技術一般是以有機酸水溶液裂解棉花，以達到分離效果。然而，分離後的聚酯織物或棉花仍殘留染料，因此，須進一步移除染料進行除色，聚酯與棉花才能回收使用，如此一來，將導致成本增加以及程序繁複。此外，即使採用濃磷酸在高溫下將聚酯棉花混紡織物中的棉纖維降解，聚酯纖維不受影響，再經過過濾分離得到聚酯纖維，仍會殘留染料，而須進一步脫色。以鹽酸作為催化劑，將聚酯棉花混紡織物中的棉花纖維降解成棉粉，聚酯纖維不受影響，以達到分離，但聚酯纖維仍會殘留染料，故須進一步脫色。
基於上述，發展出一種聚酯棉花混紡織物的回收方法，可同時進行分離與脫色，進而降低成本並簡化程序，為目前所需研究的重要課題。
本發明提供一種聚酯棉花混紡織物的回收方法，使用含有氧化劑的酸性水溶液進行浸洗，可同時進行分離與脫色，進而降低成本並簡化程序。
本發明的聚酯棉花混紡織物的回收方法，包括以下步驟。將含有染料的聚酯棉花混紡織物放入含有氧化劑的酸性水溶液中進行升溫與浸洗，以裂解聚酯棉花混紡織物中的棉花成粉狀，並同時進行脫色以去除染料。之後，以二道過濾方式取得聚酯織物與棉粉。
在本發明的一實施例中，染料包括物理染料或化學性染料。
在本發明的一實施例中，浸洗是在高於聚酯的玻璃轉化溫度下進行。
在本發明的一實施例中，在溫度90℃至180℃的酸性水溶液中進行浸洗。
在本發明的一實施例中，酸性水溶液含有有機酸，有機酸為具有1至18個碳的單元酸、二元酸或酸酐，包括甲酸、醋酸、醋酸酐、草酸、丙酸、丙二酸、丁酸、丁二酸、戊酸、戊二酸、己酸、己二酸、異辛酸、檸檬酸、馬來酸、馬來酸酐、苯甲酸或環己甲酸等。
在本發明的一實施例中，酸性水溶液中的有機酸濃度為0.5 wt%至10 wt%。
在本發明的一實施例中，酸性水溶液中的氧化劑濃度為0.05 wt%至1.0 wt%。
在本發明的一實施例中，聚酯棉花混紡織物與酸性水溶液的重量比例為1:8至1:30。
在本發明的一實施例中，進行浸洗的時間為0.5小時至3小時。
在本發明的一實施例中，氧化劑包括過氧化氫、高錳酸鉀、次氯酸鈣、臭氧、硝酸、硝酸鹽、氯酸鈉、氯酸鈣、氯酸鹽類、高氯酸鹽、次氯酸鈉、次氯酸鹽、過硼酸鈉、過硼酸鈉鹽、重鉻酸鈉、重鉻酸鹽或其組合。
在本發明的一實施例中，二道過濾方式包括第一道過濾及第二道過濾，第一道過濾使用1 mm至30 mm的濾網，第二道過濾使用10 μm至100 μm的濾網。
在本發明的一實施例中，取得的聚酯織物的L值為80%以上、a±3、b±6。
基於上述，本發明提供一種聚酯棉花混紡織物的回收方法，使用含有氧化劑的酸性水溶液進行浸洗，以同時將棉花裂解成粉狀並去除聚酯織物上的染料，在同一道製程中，能夠將聚酯及棉花分離，並取得經脫色的聚酯纖維與棉粉，因此，可降低成本並簡化程序，提高聚酯織物回收的品質並拓展應用領域，有利於後續聚酯纖維的機械或化學回收。
以下，將詳細描述本發明的實施例。然而，這些實施例為例示性，且本發明揭露不限於此。
在本文中，由「一數值至另一數值」表示的範圍，是一種避免在說明書中一一列舉該範圍中的所有數值的概要性表示方式。因此，某一特定數值範圍的記載，涵蓋該數值範圍內的任意數值以及由該數值範圍內的任意數值界定出的較小數值範圍，如同在說明書中說明文寫出該任意數值和該較小數值範圍一樣。
本發明提供一種聚酯棉花混紡織物的回收方法，包括以下步驟。將含有染料的聚酯棉花混紡織物放入含有氧化劑的酸性水溶液中進行升溫與浸洗，以裂解聚酯棉花混紡織物中的棉花成粉狀，並同時進行脫色以去除染料。之後，以二道過濾方式取得聚酯織物與棉粉。
在本實施例中，染料可包括物理染料或化學性染料。酸性水溶液含有有機酸，有機酸為具有1至18個碳的單元酸、二元酸或酸酐，可包括甲酸、醋酸、醋酸酐、草酸、丙酸、丙二酸、丁酸、丁二酸、戊酸、戊二酸、己酸、己二酸、異辛酸、檸檬酸、馬來酸、馬來酸酐、苯甲酸或環己甲酸等，且酸性水溶液中的有機酸濃度例如是0.5 wt%至10 wt%，較佳例如是1.0 wt%至8.0 wt%。酸性水溶液中的氧化劑可包括過氧化氫、高錳酸鉀、次氯酸鈣、臭氧、硝酸、硝酸鹽、氯酸鈉、氯酸鈣、氯酸鹽類、高氯酸鹽、次氯酸鈉、次氯酸鹽、過硼酸鈉、過硼酸鈉鹽、重鉻酸鈉、重鉻酸鹽或其組合，且氧化劑濃度例如是0.05 wt%至1.0 wt%，較佳例如是0.1 wt%至0.8 wt%，可降低成本。
在本實施例中，聚酯棉花混紡織物與酸性水溶液的重量比例例如是1:8至1:30，較佳例如是1:10至1:15。將含有染料的聚酯棉花混紡織物放入含有氧化劑的酸性水溶液中進行升溫與浸洗，較佳是在高於聚酯的玻璃轉化溫度下進行，以使染料可釋放到酸性水溶液並同時移除染料，例如是在溫度90℃至180℃的酸性水溶液中進行浸洗，較佳例如是溫度100℃至160℃，進行浸洗的時間例如是0.5小時至3小時，較佳例如是1小時至2小時。
聚酯棉花混紡織物中含有染料及表面處理劑等雜質，可透過酸性水溶液對棉花進行裂解成粉狀，聚酯織物結構保留，並在氧化劑及酸性環境下去除染料等雜質，將染料移除或使染料失去顏色後，經二道過濾方式即可得到白色的聚酯織物與棉粉，聚酯織物的L值由20%提升至80%以上、a±3、b±6。描述顏色的L、a、b為三個基本坐標，是常用來描述人眼可見的所有顏色的最完備的色彩模型，L值表示亮度（L = 0%生成黑色、L =100%指示白色）；a值表示在紅色和綠色之間的位置（a為負值指示綠色、正值指示品紅）；b值表示在黃色和藍色之間的位置（b為負值指示藍色、正值指示黃色）；所回收的織物L值越高織物呈現越白亮，對於下游染整加工與製作織物(衣服)的品質越有利。在二道過濾方式中，第一道過濾使用1 mm至30 mm的濾網，較佳例如是金屬濾網型式，以分離聚酯織物與棉粉水溶液漿體；之後，棉粉水溶液漿體再經第二道過濾，使用10 μm至100 μm濾網，較佳例如是塑膠材質的濾網，分離棉粉與水，以取得棉粉。透過本發明聚酯棉花混紡織物的回收方法，在水溶液的情況下，聚酯的IV（分子量）下降幅度在10%以內。
以下，藉由實驗例來詳細說明上述本發明所提出之聚酯棉花混紡織物的回收方法。然而，下述實驗例並非用以限制本發明。
實驗例
為了證明本發明所提出之聚酯棉花混紡織物的回收方法兼具分離與除色程序，在同一道製程中，能夠將聚酯及棉花分離，並取得經脫色的聚酯纖維，以下特別作此實驗例。
實施例 1
取PET聚酯(聚對苯二甲酸乙二酯，polyethylene terephthalate)-棉花混紡織物25g(L=20%、PET聚酯重量佔76%、棉花重量佔24%)，置入1L耐壓反應槽，並放入500ml的水、25g的馬來酸、1.5g的次氯酸鈉，在溫度135℃下攪拌2hr，棉花已裂解為棉粉。
之後，降溫至80℃，經過3mm的篩網分離PET聚酯與棉粉漿液，並以100 ml的水清洗PET聚酯織物；棉粉漿體再以20 μm的濾網分離棉粉與水溶液。
PET聚酯織物經105℃烘乾2hr，得PET織物純度重量比為99.5%；L=82%、a=0.9、b=5.2。
純度重量比的測量方式如下：取容積1000 CC的三角燒瓶，倒入濃度75%重量比的硫酸水溶液600 CC，取分離後PET織物樣品3g投入燒瓶中，將燒瓶加熱至50℃±5℃維持1小時，並每10分鐘搖動1次，完成後以具有3mm篩網的漏斗抽氣排液，以濃度75%重量比的硫酸水溶液200 CC倒入漏斗清洗織物並抽氣排液，再以200 CC的清水倒入漏斗清洗織物2次，每次皆以抽氣排液體，把PET織物置於烘箱以105℃烘乾2小時後秤重得2.986g，確認純度重量比為99.5%。在以下其他實施例及比較例中皆採用此方法，故不予贅述。
實施例 2
同實施例1，僅以草酸取代馬來酸，得PET織物純度重量比為99.8%；L=85%、a=0.1、b=4.4。
實施例 3
同實施例1，僅以次氯酸鈣取代次氯酸鈉，得PET織物純度重量比為99.4%；L=88%、a=0.4、b=2.6。
實施例 4
取PET聚酯-棉花混紡織物25g(L=20%、PET聚酯重量佔48%、棉花重量佔52%)，置入1L耐壓反應槽，並放入500ml的水、30g的甲酸、1.5g的次氯酸鈉，在溫度150℃下攪拌2hr，棉花已裂解為棉粉。
之後，降溫至80℃，經過3 mm的篩網分離PET聚酯與棉粉漿液，並以100 ml的水清洗PET聚酯織物；棉粉漿體再以20 μm的濾網分離棉粉與水溶液。
PET聚酯經105℃烘乾2hr，得PET織物純度重量比為99.2%；L=85%、a=1.9、b=4.2。
實施例 5
同實施例4，僅以草酸取代甲酸，得PET織物純度重量比為99.9%；L=85%、a=1.8、b=4.9。
實施例 6
同實施例4，僅以2.5g的次氯酸鈉取代1.5g的次氯酸鈉，得PET織物純度重量比為99.9%；L=89%、a=-0.1、b=3.3。
比較例 1
取PET聚酯-棉花混紡織物25g(L=20%、PET聚酯重量佔76%、棉花重量佔24%)，置入1L耐壓反應槽，並放入500ml的水、25g的馬來酸，在溫度135℃下攪拌2hr，棉花已裂解為棉粉。
之後，降溫至80℃，經過3mm的篩網分離PET聚酯與棉粉漿液，並以100ml的水清洗PET聚酯織物；棉粉漿體再以20 μm的濾網分離棉粉與水溶液。
PET聚酯織物經105℃烘乾2hr，得PET織物純度重量比為99.2%；L=54%、a=3.8、b=6.4
比較例 2
取PET聚酯-棉花混紡織物25g(L=20%、PET聚酯重量佔48%、棉花重量佔52%)，置入1L耐壓反應槽，並放入500ml的水、30g的甲酸，在溫度150℃下攪拌2hr，棉花已裂解為棉粉。
之後，降溫至80℃，經過3mm的篩網分離PET聚酯與棉粉漿液，並以100ml的水清洗PET聚酯織物；棉粉漿體再以20μm的濾網分離棉粉與水溶液。
PET聚酯經105℃烘乾2hr，得PET織物純度重量比為99.2%；L=63%、a=4.9、b=8.2。
由以上實驗結果可得知，實施例1至實施例6是使用本發明聚酯棉花混紡織物的回收方法，使用含有氧化劑的酸性水溶液進行浸洗，因此，可取得L值為80%以上的聚酯織物。相較之下，比較例1及比較例2並未使用氧化劑，因此，無法取得L值為80%以上的聚酯織物。所回收的織物L值越高織物呈現越白亮，對於下游染整加工與製作織物(衣服)的品質越有利。製程中加入氧化劑，濃度為0.3%重量比例且在酸性條件下，PET織物能有效去除染料等著色物質，讓織物呈白色(L值80%以上)，a值維持±3、b值維持±6，隨氧化劑增量至1.0%，a、b值越會接近0；當氧化劑濃度減量至0.05%，a值絕對值越接近3，b值絕對值越接近6。
綜上所述，本發明提供一種聚酯棉花混紡織物的回收方法，兼具分離與除色程序，使用含有氧化劑的酸性水溶液進行浸洗，以同時將棉花裂解成粉狀並去除聚酯織物上的染料，在同一道製程中，能夠將聚酯及棉花分離，並取得經脫色的聚酯纖維，因此，相較於習知技術中必須先裂解棉花取得聚酯織物後，再以溶劑萃取聚酯織物染料以進行脫色的技術，可降低成本並簡化程序，且所取得的聚酯織物具有高品質、高安全性與低成本的優點，如此一來，提高聚酯織物回收的品質並拓展應用領域，有利於後續聚酯纖維的機械或化學回收。
無
無
Claims (12)
- 一種聚酯棉花混紡織物的回收方法，包括： 將含有染料的聚酯棉花混紡織物放入含有氧化劑的酸性水溶液中進行升溫與浸洗，以裂解所述聚酯棉花混紡織物中的棉花成粉狀，並同時進行脫色以去除所述染料；以及 以二道過濾方式取得聚酯織物與棉粉。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中所述染料包括物理染料或化學性染料。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中浸洗是在高於聚酯的玻璃轉化溫度下進行。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中是在溫度90℃至180℃的所述酸性水溶液中進行浸洗。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中所述酸性水溶液含有有機酸，所述有機酸為具有1至18個碳的單元酸、二元酸或酸酐，包括甲酸、醋酸、醋酸酐、草酸、丙酸、丙二酸、丁酸、丁二酸、戊酸、戊二酸、己酸、己二酸、異辛酸、檸檬酸、馬來酸、馬來酸酐、苯甲酸或環己甲酸。
- 如請求項5所述之聚酯棉花混紡織物的回收方法，其中所述酸性水溶液中的有機酸濃度為0.5 wt%至10 wt%。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中所述酸性水溶液中的氧化劑濃度為0.05 wt%至1.0 wt%。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中所述聚酯棉花混紡織物與所述酸性水溶液的重量比例為1:8至1:30。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中進行浸洗的時間為0.5小時至3小時。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中所述氧化劑包括過氧化氫、高錳酸鉀、次氯酸鈣、臭氧、硝酸、硝酸鹽、氯酸鈉、氯酸鈣、氯酸鹽類、高氯酸鹽、次氯酸鈉、次氯酸鹽、過硼酸鈉、過硼酸鈉鹽、重鉻酸鈉、重鉻酸鹽或其組合。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中所述二道過濾方式包括第一道過濾及第二道過濾，所述第一道過濾使用1 mm至30 mm的濾網，所述第二道過濾使用10 μm至100 μm的濾網。
- 如請求項1所述之聚酯棉花混紡織物的回收方法，其中取得的所述聚酯織物的L值為80%以上、a±3、b±6。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110133886A TWI788006B (zh) | 2021-09-11 | 2021-09-11 | 聚酯棉花混紡織物的回收方法 |
| CN202111198395.7A CN115807336A (zh) | 2021-09-11 | 2021-10-14 | 聚酯棉花混纺织物的回收方法 |
| US17/721,339 US20230082196A1 (en) | 2021-09-11 | 2022-04-14 | Recycling method of polyester cotton blended fabric |
| JP2022079272A JP7418493B2 (ja) | 2021-09-11 | 2022-05-13 | ポリエステル綿混紡織物のリサイクル方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110133886A TWI788006B (zh) | 2021-09-11 | 2021-09-11 | 聚酯棉花混紡織物的回收方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI788006B true TWI788006B (zh) | 2022-12-21 |
| TW202311393A TW202311393A (zh) | 2023-03-16 |
Family
ID=85479448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW110133886A TWI788006B (zh) | 2021-09-11 | 2021-09-11 | 聚酯棉花混紡織物的回收方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230082196A1 (zh) |
| JP (1) | JP7418493B2 (zh) |
| CN (1) | CN115807336A (zh) |
| TW (1) | TWI788006B (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116397450A (zh) * | 2023-04-11 | 2023-07-07 | 东华大学 | 黑色废旧棉混纺织物的脱色及制备纤维素溶解浆的方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105765116A (zh) * | 2013-11-26 | 2016-07-13 | 连津格股份公司 | 用于预处理用于由再生纤维素生产成型体的回收棉纤维的方法 |
| CN109467741A (zh) * | 2017-09-08 | 2019-03-15 | 香港纺织及成衣研发中心 | 由有机酸催化的水热反应来分离和回收废旧涤棉纺织品的方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236959A (en) * | 1992-03-12 | 1993-08-17 | Hoechst Celanese Corporation | Process for recycling polyester/cotton blends |
| US7144431B2 (en) * | 2001-10-18 | 2006-12-05 | The Procter & Gamble Company | Textile finishing composition and methods for using same |
| NL2009851C2 (en) * | 2012-11-21 | 2014-05-27 | Agrawal Ecolabs | Processing of cotton-polyester waste texile. |
| CN103469538B (zh) * | 2013-09-22 | 2015-05-13 | 东华大学 | 一种改性聚酯/棉混纺针织物低温少碱前处理方法 |
| CN103741258B (zh) * | 2014-01-22 | 2015-11-25 | 李宁体育(上海)有限公司 | 一种亲水性聚酯纤维及其制备方法 |
| JP2017002426A (ja) * | 2015-06-09 | 2017-01-05 | 国立大学法人岐阜大学 | オゾンによる表面改質方法 |
| NL2016190B1 (en) * | 2016-02-01 | 2017-08-10 | Stichting Saxion | Method for regenerating cellulose fibers from cellulose-containing textile. |
| CN109112818A (zh) * | 2017-06-26 | 2019-01-01 | 中国石化仪征化纤有限责任公司 | 一种用于聚酰胺酯纤维及纯纺、混纺织物的酸性氧漂剂及漂白方法 |
| CN109468868A (zh) * | 2017-09-08 | 2019-03-15 | 香港纺织及成衣研发中心 | 一种废旧涤棉混纺织物的复合脱色方法 |
| CN109322161A (zh) * | 2018-09-15 | 2019-02-12 | 杭州三印染整有限公司 | 一种棉涤混纺织物用精练剂及其精练方法 |
| SE543048C2 (en) * | 2018-12-19 | 2020-09-29 | Re Newcell Ab | A method for separating cellulosic fibers from non-cellulosic fibers |
-
2021
- 2021-09-11 TW TW110133886A patent/TWI788006B/zh active
- 2021-10-14 CN CN202111198395.7A patent/CN115807336A/zh active Pending
-
2022
- 2022-04-14 US US17/721,339 patent/US20230082196A1/en active Pending
- 2022-05-13 JP JP2022079272A patent/JP7418493B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105765116A (zh) * | 2013-11-26 | 2016-07-13 | 连津格股份公司 | 用于预处理用于由再生纤维素生产成型体的回收棉纤维的方法 |
| CN109467741A (zh) * | 2017-09-08 | 2019-03-15 | 香港纺织及成衣研发中心 | 由有机酸催化的水热反应来分离和回收废旧涤棉纺织品的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202311393A (zh) | 2023-03-16 |
| JP7418493B2 (ja) | 2024-01-19 |
| CN115807336A (zh) | 2023-03-17 |
| US20230082196A1 (en) | 2023-03-16 |
| JP2023041603A (ja) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI788006B (zh) | 聚酯棉花混紡織物的回收方法 | |
| JP6797259B2 (ja) | 染色したポリエステル繊維の脱色方法 | |
| TWI780902B (zh) | 聚酯羊毛混紡織物的回收方法 | |
| JP2023041605A (ja) | ポリエステル織物の脱色方法 | |
| JP2023041599A (ja) | ポリエステル織物から再生ポリエステルチップを製造する方法 | |
| WO2019047175A1 (zh) | 一种废旧涤棉混纺织物的复合脱色方法 | |
| SU274284A1 (ru) | Способ удаления примесей из синтетического красителя индиго-кармина | |
| JP7489428B2 (ja) | 再生ビス（２－ヒドロキシエチル）テレフタラートの回収率を向上する方法 | |
| DE504016C (de) | Verfahren zur Herstellung von Kuepenfarbstoffen der Benzanthronreihe | |
| TW202330752A (zh) | 含聚酯、氨綸及染料的廢棄織物處理方法 | |
| US916031A (en) | Highly-brominated indigoes and process of making same. | |
| KR930024048A (ko) | 라텍스 형광체의 재가공방법 | |
| US1478027A (en) | Production of vat dyestuffs | |
| US1663159A (en) | Process for purifying and bleaching heavy spar | |
| US1216134A (en) | Green vat dyes and process of making them. | |
| US2167434A (en) | Vat dyestuff of the anthraquinone series and process for producing the same | |
| US1337306A (en) | Treating broom-corn | |
| US1657255A (en) | Process for dyeing cellulose-acetate products in black shades | |
| US898738A (en) | Oxid of thioindigo dyes. | |
| US1783137A (en) | Process for manufacturing a green vat dyestuff from 1.12 perylene quinone | |
| US970878A (en) | Vat dye and process of making same. | |
| CN115772075A (zh) | 四氯苯醌的制备方法 | |
| US1522251A (en) | Vat dyestuffs | |
| US1901288A (en) | Manufacture of vat dyestuffs and of intermediate products relating thereto | |
| US1490646A (en) | Johsf thomas |