FI980008A - Process for the production of alkali-soluble cellulose and process for the production of fibers, films and other products of soluble cellulose - Google Patents
Process for the production of alkali-soluble cellulose and process for the production of fibers, films and other products of soluble cellulose Download PDFInfo
- Publication number
- FI980008A FI980008A FI980008A FI980008A FI980008A FI 980008 A FI980008 A FI 980008A FI 980008 A FI980008 A FI 980008A FI 980008 A FI980008 A FI 980008A FI 980008 A FI980008 A FI 980008A
- Authority
- FI
- Finland
- Prior art keywords
- cellulose
- soluble cellulose
- production
- alkali
- aqueous solution
- Prior art date
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Abstract
In a process for producing alkali-soluble cellulose, the starting material cellulose is treated with substances which alter the structure of the cellulose. Cellulose pulp is treated with a cellulase enzyme mixture which weakens hydrogen bonds between the molecules to the extent that, at least at a content of 3% by weight, it dissolves, with a certain degree of decomposition, in an aqueous solution of sodium hydroxide or potassium hydroxide of 5-10% by weight. The cellulose is washed and possibly dried after the enzyme treatment. The alkali- soluble cellulose is used to produce cellulose fibres or films or other cellulose products by mixing it into an aqueous solution of alkali metal hydroxide and by conducting the aqueous solution into an acid bath.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI980008A FI107335B (en) | 1991-02-28 | 1998-01-02 | Process for producing alkali-soluble cellulose and process for producing fibres, films and other products from soluble cellulose |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI910990A FI910990A (en) | 1991-02-28 | 1991-02-28 | CELLULOSE CELLS AND CELLULOSE FOER FRAMSTAELLNING AV LOESLIG CELLULOSA. |
FI910990 | 1991-02-28 | ||
FI911408 | 1991-03-22 | ||
FI911408A FI911408A (en) | 1991-02-28 | 1991-03-22 | REFRIGERATING FOR FIBERS, FILMERS AND ANDRAIN PRODUCTS FOR CELLULOSE CELLULOSE |
FI980008 | 1998-01-02 | ||
FI980008A FI107335B (en) | 1991-02-28 | 1998-01-02 | Process for producing alkali-soluble cellulose and process for producing fibres, films and other products from soluble cellulose |
Publications (3)
Publication Number | Publication Date |
---|---|
FI980008A true FI980008A (en) | 1998-01-02 |
FI980008A0 FI980008A0 (en) | 1998-01-02 |
FI107335B FI107335B (en) | 2001-07-13 |
Family
ID=27241450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI980008A FI107335B (en) | 1991-02-28 | 1998-01-02 | Process for producing alkali-soluble cellulose and process for producing fibres, films and other products from soluble cellulose |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI107335B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014201480A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI20055381A (en) * | 2005-07-01 | 2007-01-02 | M Real Oyj | Process for dissolving cellulose and producing cellulose particles |
EP2116557B1 (en) | 2008-05-06 | 2016-12-14 | TTY Säätiö | A method for dissolving cellulose and a cellulosic product obtained from a solution comprising dissolved cellulose |
SE534211C2 (en) | 2009-10-09 | 2011-05-31 | Stora Enso Oyj | Process for making a substrate containing regenerated cellulose and a substrate made according to the process |
-
1998
- 1998-01-02 FI FI980008A patent/FI107335B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014201480A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
Also Published As
Publication number | Publication date |
---|---|
FI107335B (en) | 2001-07-13 |
FI980008A0 (en) | 1998-01-02 |
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