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 PDF

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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
Application number
FI980008A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI107335B (en
FI980008A0 (en
Inventor
Pertti Nousiainen
Matti Dolk
Henryk Struszczyk
Wawro Dariusz
Danuta Ciechanska
Krystyna Tosik-Wrzesniewska
Zofia Sojciechowska
Original Assignee
Tampereen Teknillinen Korkeako
Inst Wlokien Chem
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FI910990A external-priority patent/FI910990A/en
Priority claimed from FI911408A external-priority patent/FI911408A/en
Application filed by Tampereen Teknillinen Korkeako, Inst Wlokien Chem filed Critical Tampereen Teknillinen Korkeako
Priority to FI980008A priority Critical patent/FI107335B/en
Publication of FI980008A publication Critical patent/FI980008A/en
Publication of FI980008A0 publication Critical patent/FI980008A0/en
Application granted granted Critical
Publication of FI107335B publication Critical patent/FI107335B/en

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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.
FI980008A 1991-02-28 1998-01-02 Process for producing alkali-soluble cellulose and process for producing fibres, films and other products from soluble cellulose FI107335B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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