EP0726973B1 - Verfahren zur herstellung eines cellulosischen formkörpers - Google Patents
Verfahren zur herstellung eines cellulosischen formkörpers Download PDFInfo
- Publication number
- EP0726973B1 EP0726973B1 EP95922341A EP95922341A EP0726973B1 EP 0726973 B1 EP0726973 B1 EP 0726973B1 EP 95922341 A EP95922341 A EP 95922341A EP 95922341 A EP95922341 A EP 95922341A EP 0726973 B1 EP0726973 B1 EP 0726973B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cellulose
- suspension
- solution
- containing material
- heating surface
- 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.)
- Expired - Lifetime
Links
- 229920002678 cellulose Polymers 0.000 title claims abstract description 44
- 239000001913 cellulose Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000000465 moulding Methods 0.000 title claims abstract description 6
- 239000000243 solution Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000000725 suspension Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000010893 paper waste Substances 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 10
- 150000003512 tertiary amines Chemical class 0.000 claims description 9
- 229920000875 Dissolving pulp Polymers 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 229920000433 Lyocell Polymers 0.000 description 7
- 229920001131 Pulp (paper) Polymers 0.000 description 7
- 239000004753 textile Substances 0.000 description 7
- 229920000297 Rayon Polymers 0.000 description 6
- 239000010902 straw Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 241001070947 Fagus Species 0.000 description 2
- 235000010099 Fagus sylvatica Nutrition 0.000 description 2
- 238000001212 derivatisation Methods 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000012978 lignocellulosic material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000004682 monohydrates Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000218631 Coniferophyta Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 cyclic amine Chemical class 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- 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
Definitions
- the present invention relates to a method for Production of a cellulosic shaped body.
- N-methylmorpholine-N-oxide (NMMO) used.
- NMMO tertiary amine oxides
- NMMO additionally for the N-methylmorpholine-N-oxide which is preferably used today.
- Tertiary amine oxides have long been an alternative Known solvents for cellulose. From U.S. Patent 2,179,181 is known, for example, that tertiary amine oxides to dissolve high quality chemical pulp without derivatization assets and that from these solutions by precipitation Cellulosic shaped bodies such as fibers can be obtained. In U.S. Patents 3,447,939, 3,447,956 and 3,508,941 are others Process for the production of cellulosic solutions described cyclic amine oxides being the preferred solvent be used. All of these processes use cellulose physically dissolved at elevated temperature.
- the Preactivated cellulose is based on one NMMO-containing cellulose suspension, initially in one Mixing vessel is homogenized. Then through Centrifuging or pressing the consistency to 12.5 mass% increased, based on a water content of 10 - 15 mass% dried on NMMO) and in an extruder with degassing zone at temperatures between 75 and 120 ° C in a clear solution transferred.
- EP-A-0 356 419 by the applicant describes a method described, which is carried out in a so-called film truder in which a suspension of the crushed, high quality pulp in an aqueous tertiary amine oxide in the form of a thin layer spread over a heating surface is transported, the surface of this thin layer is exposed to a vacuum.
- a suspension of the crushed, high quality pulp in an aqueous tertiary amine oxide in the form of a thin layer spread over a heating surface is transported, the surface of this thin layer is exposed to a vacuum.
- Water is evaporated via the heating surface and the cellulose can be brought into solution so that a spinnable cellulose solution is discharged.
- NMMO Processing lignocellulosic materials in the NMMO method is known from WO 86/05526.
- For the Processing is recommended in relatively aggressive conditions.
- poplar wood becomes a special one Hydrolysis process and the solid obtained Product at room temperature with NMMO, which has a water content of 13.5%.
- Trade in the NMMO used it is the solid at room temperature present monohydrate of NMMO (melting point> 70 ° C).
- the solid mixture is homogenized and heated to 130 ° C and melted, whereby the hydrolyzed wood goes into solution.
- NMMO lignocellulosic material in a solution
- NMMO dimethyl sulfoxide
- the NMMO used is not an aqueous solution but has a water content of 15%, which is also about the monohydrate corresponds.
- the invention has for its object a method for Production of cellulosic moldings, in particular from Lyocell fibers to provide which alternative Pulp materials used, so no cellulose Conifers and hardwoods, the solution preparation if possible should be done gently. A melting of a solid Mix product should be avoided.
- the aqueous used to prepare the suspension Solution contains the tertiary amine oxide between 60 and 72 Mass%.
- An advantageous variant of the method according to the invention is that in addition as a cellulosic material high-quality chemical pulp is used, which commonly used to make viscose. It has been shown that by mixing high quality Pulp, e.g. Beech wood pulp, high quality Fibers can be made that are comparable to those are made exclusively from high quality pulp were manufactured.
- high quality Pulp e.g. Beech wood pulp
- the method according to the invention is best with N-methyl-morpholine-N-oxide performed.
- Waste textiles which consisted mainly of cotton fibers, were mechanically crushed and without further pretreatment in an aqueous solution of NMMO with a water content of 40 mass% suspended, tempered to 70 ° C and in one Laboratory kneader in the conventional way at one temperature between 90 and 105 ° C and under reduced pressure to a Processed cellulose solution.
- the content of used textiles was chosen so that a after evaporation of the excess water Cellulose concentration of 10% by mass was obtained.
- the cellulose solution was formable and could turn into cellulose fibers be spun.
- the fiber data are in the following Table given, as a comparison the data of fibers are specified that are obtained when higher quality Chemical pulp is processed.
- Example 1 was repeated, but instead of old textiles deinked waste paper used and the suspension according to the in of the processes described in EP-A-0 356 419 in one Filmtruder was processed into a solution. Some dates of the fibers spun from the moldable cellulose solution are in given in the table.
- Example 2 was repeated, but instead of old textiles, shredded straw pulp with only 75% ⁇ -cellulose was used.
- the table shows that the fiber data of the Fibers made from the alternative cellulose waste paper, Waste textiles and straw are made with those dates are comparable that are obtained for fibers that are made from high quality chemical pulp are made.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
- Paper (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Nonwoven Fabrics (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1698/94 | 1994-09-05 | ||
| AT0169894A AT401392B (de) | 1994-09-05 | 1994-09-05 | Verfahren zur herstellung eines cellulosischen formkörpers |
| PCT/AT1995/000134 WO1996007778A1 (de) | 1994-09-05 | 1995-06-26 | Verfahren zur herstellung eines cellulosischen formkörpers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0726973A1 EP0726973A1 (de) | 1996-08-21 |
| EP0726973B1 true EP0726973B1 (de) | 1998-09-16 |
Family
ID=3519060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95922341A Expired - Lifetime EP0726973B1 (de) | 1994-09-05 | 1995-06-26 | Verfahren zur herstellung eines cellulosischen formkörpers |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5601767A (pt) |
| EP (1) | EP0726973B1 (pt) |
| JP (1) | JPH09505119A (pt) |
| CN (1) | CN1040673C (pt) |
| AT (2) | AT401392B (pt) |
| AU (1) | AU704880B2 (pt) |
| BR (1) | BR9506352A (pt) |
| CA (1) | CA2175563A1 (pt) |
| DE (2) | DE19580976D2 (pt) |
| FI (1) | FI114221B (pt) |
| GB (1) | GB2297056B (pt) |
| HK (1) | HK1010402A1 (pt) |
| MX (1) | MX9601671A (pt) |
| NO (1) | NO308908B1 (pt) |
| WO (1) | WO1996007778A1 (pt) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5603884A (en) * | 1994-11-18 | 1997-02-18 | Viskase Corporation | Reinforced cellulosic film |
| AT408547B (de) * | 1995-09-26 | 2001-12-27 | Chemiefaser Lenzing Ag | Verfahren zum transportieren einer lösung von cellulose in einem wässrigen tertiären aminoxid |
| AT402741B (de) * | 1995-10-13 | 1997-08-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung cellulosischer fasern |
| US6471727B2 (en) | 1996-08-23 | 2002-10-29 | Weyerhaeuser Company | Lyocell fibers, and compositions for making the same |
| US6331354B1 (en) | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
| US6306334B1 (en) | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
| US6210801B1 (en) | 1996-08-23 | 2001-04-03 | Weyerhaeuser Company | Lyocell fibers, and compositions for making same |
| CN1061106C (zh) * | 1997-12-09 | 2001-01-24 | 宜宾丝丽雅集团有限公司 | 溶剂法纤维素纤维制造方法 |
| WO2001086042A1 (fr) * | 2000-05-10 | 2001-11-15 | Toyo Boseki Kabushiki Kaisya | Procede de preparation d'un produit façonne en cellulose |
| AT410319B (de) * | 2001-07-25 | 2003-03-25 | Chemiefaser Lenzing Ag | Celluloseschwamm und verfahren zu dessen herstellung |
| US8597518B2 (en) * | 2009-08-19 | 2013-12-03 | The University Of Connecticut | Pervaporation composite membrane for aqueous solution separation and methods for using the same |
| AT512601B1 (de) * | 2012-03-05 | 2014-06-15 | Chemiefaser Lenzing Ag | Verfahren zur Herstellung einer Cellulosesuspension |
| JP5308554B2 (ja) * | 2012-04-23 | 2013-10-09 | オーミケンシ株式会社 | 非木材再生セルロース繊維及び該繊維含有繊維製品 |
| US11034817B2 (en) | 2013-04-17 | 2021-06-15 | Evrnu, Spc | Methods and systems for processing mixed textile feedstock, isolating constituent molecules, and regenerating cellulosic and polyester fibers |
| AT515174B1 (de) | 2013-10-15 | 2019-05-15 | Chemiefaser Lenzing Ag | Cellulosesuspension, Verfahren zu ihrer Herstellung und Verwendung |
| AT515180B1 (de) | 2013-10-15 | 2016-06-15 | Chemiefaser Lenzing Ag | Dreidimensionaler cellulosischer Formkörper, Verfahren zu seiner Herstellung und seine Verwendung |
| 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 |
| AT517020B1 (de) | 2015-02-06 | 2020-02-15 | Chemiefaser Lenzing Ag | Recycling von cellulosischen Kunstfasern |
| US11414789B2 (en) * | 2016-12-06 | 2022-08-16 | Re:Newcell Ab | Cellulose fibers |
| WO2018142025A1 (en) | 2017-02-01 | 2018-08-09 | Aalto University Foundation Sr | A method to convert mechanical pulp derived waste material into value added cellulose products |
| CN107326530A (zh) * | 2017-06-15 | 2017-11-07 | 东华大学 | 一种增材制造棉纤维面料的制备方法 |
| EP3511451A1 (de) | 2018-01-15 | 2019-07-17 | Lenzing Aktiengesellschaft | Verfahren zum wiederverwenden eines cellulose und synthetischen kunststoff aufweisenden mischtextils |
| EP3511447A1 (de) | 2018-01-15 | 2019-07-17 | Lenzing Aktiengesellschaft | Funktionalisierung von fremdstoffen in lyocell-verfahren |
| EP3511448A1 (de) | 2018-01-15 | 2019-07-17 | Lenzing Aktiengesellschaft | Verfahren zum wiederverwerten von cellulose aufweisendem textilmaterial |
| ES2911218T3 (es) * | 2018-01-15 | 2022-05-18 | Chemiefaser Lenzing Ag | Reutilización de la fibra de celulosa Lyocell para el procedimiento Lyocell |
| EP3511874A1 (de) | 2018-01-15 | 2019-07-17 | Lenzing Aktiengesellschaft | Kodierung eines celluloseprodukts |
| EP3868929A1 (de) * | 2018-01-15 | 2021-08-25 | Lenzing Aktiengesellschaft | Formkörper der in cellulose inkorporiertes elastan aufweist und herstellungsverfahren |
| FR3095819B1 (fr) | 2019-05-10 | 2021-06-18 | Inst De Rech Tech Jules Verne | Procédé de fabrication d’une fibre de carbone à partir d’un produit en papier |
| EP3748072A1 (de) * | 2019-06-04 | 2020-12-09 | Lenzing Aktiengesellschaft | Verfahren zum kontinuierlichen bereitstellen eines cellulose-aufweisenden aufbereiteten ausgangsstoffs |
| WO2023180181A1 (en) | 2022-03-21 | 2023-09-28 | Phoenxt Pty. Ltd | Regenerating cellulose from waste textile |
| CN115637602A (zh) * | 2022-10-28 | 2023-01-24 | 武汉纺织大学 | 一种采用有机溶剂提取稻草秸秆中纤维素的方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE226573C (pt) * | ||||
| US2179181A (en) * | 1936-04-21 | 1939-11-07 | Soc Of Chemical Ind | Cellulose solutions and process of making same |
| US3447939A (en) * | 1966-09-02 | 1969-06-03 | Eastman Kodak Co | Compounds dissolved in cyclic amine oxides |
| US3447956A (en) * | 1966-09-02 | 1969-06-03 | Eastman Kodak Co | Process for strengthening swellable fibrous material with an amine oxide and the resulting material |
| US4416698A (en) * | 1977-07-26 | 1983-11-22 | Akzona Incorporated | Shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent and a process for making the article |
| FR2578865B1 (fr) * | 1985-03-14 | 1987-04-10 | Centre Nat Rech Scient | Procede pour la preparation de solutions d'un materiau ligno-cellulosique et solutions obtenues. |
| AT392972B (de) * | 1988-08-16 | 1991-07-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung von loesungen von cellulose sowie einrichtung zur durchfuehrung des verfahrens |
| US5094690A (en) * | 1988-08-16 | 1992-03-10 | Lenzing Aktiengesellschaft | Process and arrangement for preparing a solution of cellulose |
-
1994
- 1994-09-05 AT AT0169894A patent/AT401392B/de not_active IP Right Cessation
-
1995
- 1995-06-06 US US08/483,565 patent/US5601767A/en not_active Expired - Fee Related
- 1995-06-26 AT AT95922341T patent/ATE171226T1/de not_active IP Right Cessation
- 1995-06-26 WO PCT/AT1995/000134 patent/WO1996007778A1/de active IP Right Grant
- 1995-06-26 JP JP8509024A patent/JPH09505119A/ja not_active Ceased
- 1995-06-26 GB GB9607855A patent/GB2297056B/en not_active Revoked
- 1995-06-26 EP EP95922341A patent/EP0726973B1/de not_active Expired - Lifetime
- 1995-06-26 MX MX9601671A patent/MX9601671A/es unknown
- 1995-06-26 DE DE19580976T patent/DE19580976D2/de not_active Expired - Fee Related
- 1995-06-26 AU AU27067/95A patent/AU704880B2/en not_active Ceased
- 1995-06-26 CA CA002175563A patent/CA2175563A1/en not_active Abandoned
- 1995-06-26 DE DE59503610T patent/DE59503610D1/de not_active Expired - Fee Related
- 1995-06-26 CN CN95190846A patent/CN1040673C/zh not_active Expired - Fee Related
- 1995-06-26 BR BR9506352A patent/BR9506352A/pt not_active IP Right Cessation
-
1996
- 1996-05-03 FI FI961902A patent/FI114221B/fi not_active IP Right Cessation
- 1996-05-03 NO NO961795A patent/NO308908B1/no not_active IP Right Cessation
-
1998
- 1998-10-13 HK HK98111218A patent/HK1010402A1/xx not_active IP Right Cessation
Non-Patent Citations (2)
| Title |
|---|
| H. Temming & H. Grunert: "Temming-Linters", Peter Temming AG, Glückstadt (1965), S.11, 12, 14, 16, 22, 26 * |
| Melliand Textilberichte 6/1994, S. 458 * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2297056B (en) | 1998-04-08 |
| NO961795D0 (no) | 1996-05-03 |
| CA2175563A1 (en) | 1996-03-14 |
| FI961902A0 (fi) | 1996-05-03 |
| DE59503610D1 (de) | 1998-10-22 |
| AU2706795A (en) | 1996-03-27 |
| ATA169894A (de) | 1996-01-15 |
| CN1134732A (zh) | 1996-10-30 |
| BR9506352A (pt) | 1997-09-02 |
| GB9607855D0 (en) | 1996-06-19 |
| DE19580976D2 (de) | 1996-09-26 |
| WO1996007778A1 (de) | 1996-03-14 |
| US5601767A (en) | 1997-02-11 |
| HK1010402A1 (en) | 1999-06-17 |
| FI961902A (fi) | 1996-05-03 |
| EP0726973A1 (de) | 1996-08-21 |
| GB2297056A (en) | 1996-07-24 |
| AT401392B (de) | 1996-08-26 |
| JPH09505119A (ja) | 1997-05-20 |
| NO308908B1 (no) | 2000-11-13 |
| MX9601671A (es) | 1997-03-29 |
| CN1040673C (zh) | 1998-11-11 |
| FI114221B (fi) | 2004-09-15 |
| ATE171226T1 (de) | 1998-10-15 |
| AU704880B2 (en) | 1999-05-06 |
| NO961795L (no) | 1996-05-03 |
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