CA3226776A1 - Method for producing regenerated cellulosic fibers - Google Patents
Method for producing regenerated cellulosic fibers Download PDFInfo
- Publication number
- CA3226776A1 CA3226776A1 CA3226776A CA3226776A CA3226776A1 CA 3226776 A1 CA3226776 A1 CA 3226776A1 CA 3226776 A CA3226776 A CA 3226776A CA 3226776 A CA3226776 A CA 3226776A CA 3226776 A1 CA3226776 A1 CA 3226776A1
- Authority
- CA
- Canada
- Prior art keywords
- fibers
- fiber tow
- bath
- cut
- fiber layer
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 305
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 230000015271 coagulation Effects 0.000 claims abstract description 90
- 238000005345 coagulation Methods 0.000 claims abstract description 90
- 238000000034 method Methods 0.000 claims abstract description 63
- 229920002678 cellulose Polymers 0.000 claims abstract description 57
- 239000001913 cellulose Substances 0.000 claims abstract description 57
- 238000009987 spinning Methods 0.000 claims abstract description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 45
- 238000012545 processing Methods 0.000 claims abstract description 24
- 150000003839 salts Chemical class 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 239000003513 alkali Substances 0.000 claims abstract description 17
- 239000003125 aqueous solvent Substances 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims description 64
- 230000003750 conditioning effect Effects 0.000 claims description 57
- 239000007788 liquid Substances 0.000 claims description 43
- 238000012805 post-processing Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 14
- 230000002378 acidificating effect Effects 0.000 claims description 12
- 238000004061 bleaching Methods 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 11
- 239000004753 textile Substances 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 230000003472 neutralizing effect Effects 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000004132 cross linking Methods 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 210000003666 myelinated nerve fiber Anatomy 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 235000011054 acetic acid Nutrition 0.000 claims description 3
- 239000013067 intermediate product Substances 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 239000001117 sulphuric acid Substances 0.000 claims description 3
- 235000011149 sulphuric acid Nutrition 0.000 claims description 3
- -1 garments Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 21
- 239000002904 solvent Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 229920000297 Rayon Polymers 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 159000000000 sodium salts Chemical class 0.000 description 7
- 229920000875 Dissolving pulp Polymers 0.000 description 5
- 238000000265 homogenisation Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 238000007380 fibre production Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 238000002788 crimping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000004627 regenerated cellulose Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 229920000433 Lyocell Polymers 0.000 description 2
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 2
- 239000007832 Na2SO4 Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- LBLYYCQCTBFVLH-UHFFFAOYSA-M 2-methylbenzenesulfonate Chemical compound CC1=CC=CC=C1S([O-])(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-M 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 125000001547 cellobiose group Chemical group 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 230000002535 lyotropic effect Effects 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
- D21H13/08—Synthetic cellulose fibres from regenerated cellulose
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21187680.0 | 2021-07-26 | ||
| EP21187680.0A EP4124681A1 (de) | 2021-07-26 | 2021-07-26 | Herstellungsverfahren von regenerierten cellulosefasern |
| PCT/EP2022/070609 WO2023006601A1 (en) | 2021-07-26 | 2022-07-22 | Improvements relating to the cold-alkali process for the production of regenerated cellulosic fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3226776A1 true CA3226776A1 (en) | 2023-02-02 |
Family
ID=77050915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3226776A Pending CA3226776A1 (en) | 2021-07-26 | 2022-07-22 | Method for producing regenerated cellulosic fibers |
Country Status (5)
| Country | Link |
|---|---|
| EP (2) | EP4124681A1 (de) |
| CN (1) | CN118043507A (de) |
| CA (1) | CA3226776A1 (de) |
| TW (1) | TW202314071A (de) |
| WO (1) | WO2023006601A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4368753A1 (de) * | 2022-11-08 | 2024-05-15 | TreeToTextile AB | Gewebe mit regenerierter zellulose |
| WO2024102054A1 (en) * | 2022-11-08 | 2024-05-16 | Treetotextile Ab | A fabric with regenerated cellulose |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL83047B1 (en) * | 1970-07-21 | 1975-12-31 | Nitto Boseki Coltd | Process for producing highly crimped viscose rayon[gb1318122a] |
| US3720743A (en) * | 1970-10-20 | 1973-03-13 | Itt | Process for producing high performance crimped rayon staple fiber |
| GB9412500D0 (en) * | 1994-06-22 | 1994-08-10 | Courtaulds Fibres Holdings Ltd | Fibre manufacture |
| PL214565B1 (pl) * | 2009-05-14 | 2013-08-30 | Inst Biopolimerow I Wlokien Chemicznych | Sposób wytwarzania trudnopalnych włókien celulozowych |
| EP3231899A1 (de) | 2016-04-14 | 2017-10-18 | TreeToTextile AB | Verfahren und system zur herstellung einer spinnlösungszusammensetzung |
| EP3231901A1 (de) | 2016-04-14 | 2017-10-18 | TreeToTextile AB | Verfahren zum spinnen aufgelöster cellulose enthaltend das rückgewinnen eines wässrigen natriumhydroxid lösungsmittel für cellulose aus der fällbadablauge |
| AU2018235910A1 (en) | 2017-03-15 | 2019-09-19 | Treetotextile Ab | Regenerated cellulosic fibres spun from an aqueous alkaline spindope |
| US11492756B2 (en) * | 2018-08-23 | 2022-11-08 | Eastman Chemical Company | Paper press process with high hydrolic pressure |
| WO2020041256A1 (en) * | 2018-08-23 | 2020-02-27 | Eastman Chemical Company | Recycled deinked sheet articles |
| SE544547C2 (en) | 2019-02-21 | 2022-07-12 | Treetotextile Ab | A process for wet spinning of cellulose fibers from an alkaline spin bath |
-
2021
- 2021-07-26 EP EP21187680.0A patent/EP4124681A1/de not_active Withdrawn
-
2022
- 2022-07-22 WO PCT/EP2022/070609 patent/WO2023006601A1/en active Application Filing
- 2022-07-22 CA CA3226776A patent/CA3226776A1/en active Pending
- 2022-07-22 EP EP22754085.3A patent/EP4377503A1/de active Pending
- 2022-07-22 CN CN202280065051.5A patent/CN118043507A/zh active Pending
- 2022-07-25 TW TW111127771A patent/TW202314071A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP4377503A1 (de) | 2024-06-05 |
| CN118043507A (zh) | 2024-05-14 |
| TW202314071A (zh) | 2023-04-01 |
| WO2023006601A1 (en) | 2023-02-02 |
| EP4124681A1 (de) | 2023-02-01 |
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