JP2023041603A - ポリエステル綿混紡織物のリサイクル方法 - Google Patents
ポリエステル綿混紡織物のリサイクル方法 Download PDFInfo
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- JP2023041603A JP2023041603A JP2022079272A JP2022079272A JP2023041603A JP 2023041603 A JP2023041603 A JP 2023041603A JP 2022079272 A JP2022079272 A JP 2022079272A JP 2022079272 A JP2022079272 A JP 2022079272A JP 2023041603 A JP2023041603 A JP 2023041603A
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- polyester
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- 239000004744 fabric Substances 0.000 title claims abstract description 102
- 229920000742 Cotton Polymers 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004064 recycling Methods 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 229920000728 polyester Polymers 0.000 claims abstract description 58
- 239000000843 powder Substances 0.000 claims abstract description 34
- 239000007864 aqueous solution Substances 0.000 claims abstract description 31
- 230000002378 acidificating effect Effects 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 239000007800 oxidant agent Substances 0.000 claims abstract description 19
- 238000002791 soaking Methods 0.000 claims abstract description 15
- 238000004042 decolorization Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 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
- 150000007524 organic acids Chemical class 0.000 claims description 11
- 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
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 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
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group 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
- 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
- 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
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 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
- 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
- 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
- 150000008065 acid anhydrides 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
- 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
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 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
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 3
- 229960001922 sodium perborate Drugs 0.000 claims description 3
- 229940005605 valeric acid Drugs 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 1
- 229910001919 chlorite Inorganic materials 0.000 claims 1
- 229910052619 chlorite group Inorganic materials 0.000 claims 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims 1
- 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 claims 1
- 239000000243 solution Substances 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 32
- 239000005020 polyethylene terephthalate Substances 0.000 description 32
- 239000000975 dye Substances 0.000 description 22
- 238000000926 separation method Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- NZNMSOFKMUBTKW-UHFFFAOYSA-N cyclohexanecarboxylic acid Chemical compound OC(=O)C1CCCCC1 NZNMSOFKMUBTKW-UHFFFAOYSA-N 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- 235000005985 organic acids Nutrition 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
- 230000009286 beneficial effect Effects 0.000 description 2
- VZFUCHSFHOYXIS-UHFFFAOYSA-N cycloheptane carboxylic acid Natural products OC(=O)C1CCCCCC1 VZFUCHSFHOYXIS-UHFFFAOYSA-N 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- 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 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- KQPBSBAEBKRAAU-UHFFFAOYSA-N hypochlorous acid;sodium Chemical compound [Na].ClO KQPBSBAEBKRAAU-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/75—Plastic waste
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- 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
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- 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
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
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- 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
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- C08J11/04—Recovery or working-up of waste materials of polymers
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- 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
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- C—CHEMISTRY; METALLURGY
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- 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
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- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- 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)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Coloring (AREA)
- Detergent Compositions (AREA)
Abstract
Description
本発明によるポリエステル綿混紡織物のリサイクル方法が分離と脱色の両方を達成すること、及び単一の処理でポリエステルと綿とが分離されて脱色されたポリエステル繊維が得られることを検証するため、実験例を以下に提供する。
ポリエチレンテレフタレ-ト(PET)ポリエステル綿混紡織物(L値20%を有し、PETポリエステルが重量の76%を占め、綿が重量の24%を占める)25gを取得して1リットルの耐圧反応槽に入れ、そこに水500ml、マレイン酸25g、次亜塩素酸ナトリウム1.5gを入れ、続いて綿を綿粉末に分解するために135℃で2時間攪拌した。
マレイン酸の代わりにシュウ酸を用いる以外は実施例1と同一の手順に従い、純度重量比が99.8%であり、L値85%、a値0.1、b値4.4のPET織物を得た。
次亜塩素酸ナトリウムの代わりに次亜塩素酸カルシウムを用いる以外は実施例1と同一の手順に従い、純度重量比が99.4%であり、L値88%、a値0.4、b値2.6のPET織物を得た。
PETポリエステル綿混紡織物(L値20%を有し、PETポリエステルが重量の48%を占め、綿が重量の52%を占める)25gを取得して1リットルの耐圧反応槽に入れ、そこに水500ml、ギ酸30g、次亜塩素酸ナトリウム1.5gを入れ、続いて綿を綿粉末に分解するために150℃で2時間攪拌した。
ギ酸の代わりにシュウ酸を用いる以外は実施例4と同一の手順に従い、純度重量比が99.9%であり、L値85%、a値1.8、b値4.9のPET織物を得た。
次亜塩素酸ナトリウム1.5gの代わりに次亜塩素酸ナトリウム2.5gを用いる以外は実施例4と同一の手順に従い、純度重量比が99.9%であり、L値89%、a値-0.1、b値3.3のPET織物を得た。
PETポリエステル綿混紡織物(L値20%を有し、PETポリエステルが重量の76%を占め、綿が重量の24%を占める)25gを取得して1リットルの耐圧反応槽に入れ、そこに水500ml、マレイン酸25gを入れ、続いて綿を綿粉末に分解するために135℃で2時間攪拌した。
PETポリエステル綿混紡織物(L値20%を有し、PETポリエステルが重量の48%を占め、綿が重量の52%を占める)25gを取得して1リットルの耐圧反応槽に入れ、そこに水500ml、ギ酸30gを入れ、続いて綿を綿粉末に分解するために150℃で2時間攪拌した。
Claims (12)
- ポリエステル綿混紡織物中の綿を綿粉末に分解して、染料を除去するために脱色を同時に実行するため、前記染料を含む前記ポリエステル綿混紡織物を加熱及び浸漬のために酸化剤を含む酸性水溶液に入れることと、
二重濾過によりポリエステル織物と綿粉末とを得ることと
を含む、
ポリエステル綿混紡織物のリサイクル方法。 - 前記染料が物理的な染料又は化学染料を含む、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記浸漬がポリエステルのガラス転移温度よりも高い温度で実行される、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記浸漬が90℃~180℃の温度で前記酸性水溶液において実行される、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記酸性水溶液が有機酸を含み、前記有機酸が炭素数1~18の一塩基酸、二塩基酸、又は酸無水物であり、前記有機酸が、ギ酸、酢酸、無水酢酸、シュウ酸、プロピオン酸、マロン酸、酪酸、コハク酸、吉草酸、グルタル酸、カプロン酸、アジピン酸、イソオクタン酸、クエン酸、マレイン酸、無水マレイン酸、安息香酸、又はシクロヘキサンカルボン酸を含む、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記酸性水溶液中の前記有機酸の濃度が0.5重量%~10重量%である、
請求項5に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記酸性水溶液中の前記酸化剤の濃度が0.05重量%~1.0重量%である、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記ポリエステル綿混紡織物と前記酸性水溶液との間の重量比が1:8~1:30である、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記浸漬が0.5時間~3時間実行される、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記酸化剤が、過酸化水素、過マンガン酸カリウム、次亜塩素酸カルシウム、オゾン、硝酸、硝酸塩、塩素酸ナトリウム、塩素酸カルシウム、塩素酸塩、過塩素酸塩、次亜塩素酸ナトリウム、次亜塩素酸塩、過ホウ酸ナトリウム、過ホウ酸ナトリウム塩、二クロム酸ナトリウム、重クロム塩酸、又はそれらの組合せを含む、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 前記二重濾過が第1濾過と第2濾過とを含み、前記第1濾過が1mm~30mmのメッシュサイズを有するフィルタを用い、前記第2濾過が10μm~100μmのメッシュサイズのフィルタを用いる、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。 - 得られた前記ポリエステル織物が、L値が80%以上、a値が-3~3、b値が-6~6を有する、
請求項1に記載のポリエステル綿混紡織物のリサイクル方法。
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Citations (7)
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 |
JP2005506466A (ja) * | 2001-10-18 | 2005-03-03 | ザ プロクター アンド ギャンブル カンパニー | 織物加工組成物及びこの組成物の使用方法 |
WO2014081291A1 (en) * | 2012-11-21 | 2014-05-30 | Agrawal Ecolabs | Processing of cotton-polyester waste textile |
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 |
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 |
US20190338466A1 (en) * | 2016-02-01 | 2019-11-07 | Stichting Saxion | Method for producing regenerated cellulose fibers from cotton containing textile waste |
WO2020127453A1 (en) * | 2018-12-19 | 2020-06-25 | Re:Newcell Ab | Separation of fibers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
AT515152B1 (de) * | 2013-11-26 | 2015-12-15 | Chemiefaser Lenzing Ag | Verfahren zum Vorbehandeln von rückgewonnenen Baumwollfasern zur Verwendung bei der Herstellung von Formkörpern aus regenerierter Cellulose |
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 |
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 |
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Patent Citations (7)
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 |
JP2005506466A (ja) * | 2001-10-18 | 2005-03-03 | ザ プロクター アンド ギャンブル カンパニー | 織物加工組成物及びこの組成物の使用方法 |
WO2014081291A1 (en) * | 2012-11-21 | 2014-05-30 | Agrawal Ecolabs | Processing of cotton-polyester waste textile |
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 |
US20190338466A1 (en) * | 2016-02-01 | 2019-11-07 | Stichting Saxion | Method for producing regenerated cellulose fibers from cotton containing textile waste |
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 |
WO2020127453A1 (en) * | 2018-12-19 | 2020-06-25 | Re:Newcell Ab | Separation of fibers |
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