GB904481A - Process for the manufacture of artificial filamentary materials of viscose - Google Patents
Process for the manufacture of artificial filamentary materials of viscoseInfo
- Publication number
- GB904481A GB904481A GB3937760A GB3937760A GB904481A GB 904481 A GB904481 A GB 904481A GB 3937760 A GB3937760 A GB 3937760A GB 3937760 A GB3937760 A GB 3937760A GB 904481 A GB904481 A GB 904481A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- modifier
- added
- weight
- caustic soda
- 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 spinning of viscose filamentary materials, there is added to the viscose at any stage in its production, and/or to the acid spinning bath, a modifier consisting of an N-(phenyl) thio-semicarbazide of the general formula:- <FORM:0904481/IV(a)/1> in which R represents -H, -CH3, -C3H5, -OCH3 or -OC2H5, and the viscose is spun in a spinning bath containing at least 5% of a zinc salt. Preferably, 0,05% to 0,5% by weight of the modifier is added, calculated on the weight of the viscose or the spinning bath as appropriate. In an example, cellulose is steeped for one hour at 19 DEG -20 DEG C. in 19% caustic soda, reduced to fibres, and the disintegrated alkali cellulose pre-ripened for 16 hours at 18 DEG C., and then xanthated at 28 DEG -30 DEG C. for three hours. The xanthated alkali cellulose is dissolved in caustic soda and 0,3% by weight, calculated on the viscose, of the modifier N-(phenyl) thiosemicarbazide added. The viscose is then after-ripened at 130 DEG C., and filtered, its composition being 6,5% cellulose, 6,2% caustic soda, 40,0% carbon disulphide, and 0,3% modifier, its viscosity 91 and salt point 9,0. It is then spun into a bath containing 80 g./l. sulphuric acid, 135 g./l. sodium sulphate (anhydrous), 95 g./l. p zinc sulphate (anhydrous), maintained at 55 DEG C., and the freshly spun tow stretched 98% in a bath containing 55 g./l. sulphuric acid, maintained at 90 DEG C. Filaments so made have an all-skin structure and a rounded cross-section, and show enhanced elongation and swelling properties.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG28519A DE1102966B (en) | 1959-12-05 | 1959-12-05 | Process for the production of structures such as threads or fibers by spinning viscose |
Publications (1)
Publication Number | Publication Date |
---|---|
GB904481A true GB904481A (en) | 1962-08-29 |
Family
ID=7123504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3937760A Expired GB904481A (en) | 1959-12-05 | 1960-11-16 | Process for the manufacture of artificial filamentary materials of viscose |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1102966B (en) |
GB (1) | GB904481A (en) |
NL (1) | NL257128A (en) |
-
0
- NL NL257128D patent/NL257128A/xx unknown
-
1959
- 1959-12-05 DE DEG28519A patent/DE1102966B/en active Pending
-
1960
- 1960-11-16 GB GB3937760A patent/GB904481A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1102966B (en) | 1961-03-23 |
NL257128A (en) |
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