GB2014902A - Preparing viscose solutions - Google Patents
Preparing viscose solutionsInfo
- Publication number
- GB2014902A GB2014902A GB7901841A GB7901841A GB2014902A GB 2014902 A GB2014902 A GB 2014902A GB 7901841 A GB7901841 A GB 7901841A GB 7901841 A GB7901841 A GB 7901841A GB 2014902 A GB2014902 A GB 2014902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- prior
- aging
- heavy metal
- steeping
- 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.)
- Granted
Links
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
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
In a process for the manufacture of shaped articles, such as films, filaments and fibers, of regenerated cellulose by the viscose process, heavy metal ions (which catalyse alkaline- oxidative degradation of the cellulose) are removed from the alkali cellulose prior to aging. This may be achieved by adding, suitably in stoichiometric excess, a heavy metal-complexing agent, for example EDTA or a salt thereof or a polyphosphate, to the alkali cellulose prior to aging, especially to the steeping liquor or to the cellulose pulp prior to steeping.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2802394A DE2802394C2 (en) | 1978-01-20 | 1978-01-20 | Process for the production of threads, fibers and films according to the viscose process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2014902A true GB2014902A (en) | 1979-09-05 |
| GB2014902B GB2014902B (en) | 1982-09-08 |
Family
ID=6029954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7901841A Expired GB2014902B (en) | 1978-01-20 | 1979-01-18 | Preparing viscose solutions |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS54116421A (en) |
| AT (1) | AT384038B (en) |
| BE (1) | BE873626A (en) |
| DE (1) | DE2802394C2 (en) |
| FI (1) | FI790167A (en) |
| FR (1) | FR2415153B1 (en) |
| GB (1) | GB2014902B (en) |
| IT (1) | IT1110977B (en) |
| NO (1) | NO790201L (en) |
| SE (1) | SE7900502L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3253912B1 (en) | 2015-02-06 | 2018-11-21 | Lenzing AG | Recycling of man-made cellulosic fibers |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005533B (en) * | 2021-03-22 | 2022-03-15 | 太原理工大学 | Method for removing iron ions in seed hemp pulp |
-
1978
- 1978-01-20 DE DE2802394A patent/DE2802394C2/en not_active Expired
-
1979
- 1979-01-18 GB GB7901841A patent/GB2014902B/en not_active Expired
- 1979-01-18 AT AT0036679A patent/AT384038B/en not_active IP Right Cessation
- 1979-01-18 IT IT19417/79A patent/IT1110977B/en active
- 1979-01-18 FI FI790167A patent/FI790167A/en unknown
- 1979-01-19 NO NO790201A patent/NO790201L/en unknown
- 1979-01-19 SE SE7900502A patent/SE7900502L/en unknown
- 1979-01-19 JP JP402979A patent/JPS54116421A/en active Pending
- 1979-01-22 FR FR7901470A patent/FR2415153B1/en not_active Expired
- 1979-01-22 BE BE0/193010A patent/BE873626A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3253912B1 (en) | 2015-02-06 | 2018-11-21 | Lenzing AG | Recycling of man-made cellulosic fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| NO790201L (en) | 1979-07-23 |
| IT7919417A0 (en) | 1979-01-18 |
| DE2802394C2 (en) | 1979-12-13 |
| ATA36679A (en) | 1987-02-15 |
| FR2415153B1 (en) | 1985-08-16 |
| FI790167A (en) | 1979-07-21 |
| FR2415153A1 (en) | 1979-08-17 |
| JPS54116421A (en) | 1979-09-10 |
| IT1110977B (en) | 1986-01-13 |
| BE873626A (en) | 1979-07-23 |
| DE2802394B1 (en) | 1979-01-18 |
| AT384038B (en) | 1987-09-25 |
| GB2014902B (en) | 1982-09-08 |
| SE7900502L (en) | 1979-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS51128491A (en) | A process for preparing aqueous sugars by enzymatic hydrolysis of cell ulose | |
| CA995410A (en) | Process for bleaching cellulose fibres | |
| BR8202011A (en) | PROCESS FOR TREATING DISCONTINUED CELLULOSE FIBERS, TREATED FIBERS, COMPOSITION CONTAINING SUCH FIBERS, AND PROCESSES FOR PREPARING SUCH COMPOSITION | |
| ES448833A1 (en) | Procedure for the preparation of a decomposition agent of aqueous systems. (Machine-translation by Google Translate, not legally binding) | |
| BR7601443A (en) | CELLULOSE PULP WHITING PROCESS | |
| DE3162601D1 (en) | Solutions which can be shaped, shaped articles obtained from these solutions as well as process of production of same | |
| CA1035483A (en) | Process for drying polymer-modified cellulose fibres | |
| PT70476A (en) | Process for preparing polysaccharide s-60 | |
| ZA829421B (en) | Process for bleaching cellulosic fibre materials using oligomers of phosphonic acid esters as stabilisers in alkaline, peroxide-containing bleaching liquors | |
| GB2014902A (en) | Preparing viscose solutions | |
| ES372563A1 (en) | Process of hydrophilization, purification and bleaching of cellulose fibers | |
| US2074339A (en) | Preparation of cellulosic material | |
| YU44391B (en) | Process for producing coherent flax for spinning | |
| DE3168851D1 (en) | Process for making almost dry alkali cellulose | |
| ZA801863B (en) | Process for extracting iodine from aqueous solutions | |
| ATE1817T1 (en) | PROCESS FOR MAKING VISCOSE. | |
| ES484849A1 (en) | Peroxygen containing compositions and bleaching process. | |
| IT1109111B (en) | PROCESS FOR THE PRODUCTION OF CELLULOSE FROM CONIFER WOOD | |
| ATA434872A (en) | PROCESS FOR PRODUCING REGENERATED CELLULOSE BY THE VISCOSE PROCESS | |
| GB2085449B (en) | Process for preparing agglomerated fibrous cellulose ion exchange composites | |
| CA928009A (en) | Method for manufacturing sulfite pulp cooking liquor from sulfite pulp spent liquor | |
| DE3367781D1 (en) | Process for preparing prepregs from fibres that contain cellulose using aqueous resin compositions | |
| ES8404442A1 (en) | Alkali treatment of cellulosic fiber goods | |
| AT351358B (en) | PROCESS FOR PRODUCING PULP BY THE SULPHITE PROCESS | |
| SU562605A1 (en) | Method of processing viscose fibers for the manufacture of filter paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |