GB903610A - Production of regenerated cellulose from wood pulp - Google Patents
Production of regenerated cellulose from wood pulpInfo
- Publication number
- GB903610A GB903610A GB22073/60A GB2207360A GB903610A GB 903610 A GB903610 A GB 903610A GB 22073/60 A GB22073/60 A GB 22073/60A GB 2207360 A GB2207360 A GB 2207360A GB 903610 A GB903610 A GB 903610A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- agent
- added
- weight
- filaments
- 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
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
- D01F2/08—Composition of the spinning solution or the bath
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
In the manufacture of regenerated cellulose filaments from prehydrolysed sulphate chemical wood pulp by the viscose process, there is incorporated in the viscose a modifying agent consisting essentially of an ethylene oxide-1.2 propylene oxide ester of disproportionated rosin in amount from 0,5% to 3,5% by weight of the bone dry pulp, the oxides being present in the esters in amount from 1,5 to 9 times the weight of rosin, and the ethylene oxide constituting from 40% to 85% of the total oxide weight of the esters. The modifying agents are esters of a mixture consisting substantially of dehydroabietic acid with minor proportions of dihydroabietic and tetrahydroabietic acid. This agent may be added at any stage prior to spinning, but is preferably added prior to the completion of steeping in the slurry viscose process and prior to the completion of shredding in the sheet steeping viscose process, and especially is added to sheeted prehydrolysed sulphate pulp. The amount of agent added may be 0,5% by weight of the bone dry pulp. The agent modifies the skin to core ratio of the filaments spun from the viscose, and their cross-sectional shape. The skin to core ratio obtained increases as the percentage of ethylene oxide in the agent is increased and vice versa. In viscose spinning, the skin to core ratio and cross-sectional shape of the filaments may be changed without interrupting the process by changing the modifying agent added to the viscose to one having a different proportion of ethylene oxide. The viscose may be spun in an acid bath, containing zinc sulphate and the filaments so made may be stretched in a second bath.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US830889A US3034910A (en) | 1959-07-31 | 1959-07-31 | Production of regenerated cellulose filaments from wood pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
GB903610A true GB903610A (en) | 1962-08-15 |
Family
ID=25257884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22073/60A Expired GB903610A (en) | 1959-07-31 | 1960-06-23 | Production of regenerated cellulose from wood pulp |
Country Status (3)
Country | Link |
---|---|
US (1) | US3034910A (en) |
BE (1) | BE593596A (en) |
GB (1) | GB903610A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE625824A (en) * | 1962-04-09 | |||
DE2917439C2 (en) * | 1979-04-28 | 1981-10-08 | Akzo Gmbh, 5600 Wuppertal | Process for the preparation of a paper sizing agent |
EP3231899A1 (en) * | 2016-04-14 | 2017-10-18 | TreeToTextile AB | A method and system for the production of a spinning dope composition |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE24486E (en) * | 1958-06-10 | Chsch | ||
US2792313A (en) * | 1950-04-08 | 1957-05-14 | Int Paper Canada | Manufacture of cellulose |
NL93553C (en) * | 1951-12-13 | |||
US2813038A (en) * | 1953-04-07 | 1957-11-12 | Courtaulds Ltd | Production of artificial filaments, threads and the like |
BE555009A (en) * | 1956-03-05 |
-
1959
- 1959-07-31 US US830889A patent/US3034910A/en not_active Expired - Lifetime
-
1960
- 1960-06-23 GB GB22073/60A patent/GB903610A/en not_active Expired
- 1960-07-29 BE BE593596A patent/BE593596A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE593596A (en) | 1960-11-14 |
US3034910A (en) | 1962-05-15 |
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