GB961397A - Improvements in and relating to the production of yarns of regenerated cellulose continuous filaments - Google Patents
Improvements in and relating to the production of yarns of regenerated cellulose continuous filamentsInfo
- Publication number
- GB961397A GB961397A GB3651759A GB3651759A GB961397A GB 961397 A GB961397 A GB 961397A GB 3651759 A GB3651759 A GB 3651759A GB 3651759 A GB3651759 A GB 3651759A GB 961397 A GB961397 A GB 961397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- viscose
- cellulose
- regenerated cellulose
- bath
- 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
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
961,397. Regenerated cellulose filaments. COURTAULDS Ltd. Oct. 27, 1960 [Oct. 28, 1959], No. 36517/59. Heading B5B. Continuous filament viscose rayon having a total denier up to 350 is made by extruding viscose of cellulose content 4-6%, and caustic soda content approximately, half that of the cellulose, the cellulose having an average degree of polymerization of at least 300 and the viscose having a salt point of at least 10 and a ball fall viscosity from 50-150 secs., into a coagulating bath containing from 2.0-3.5% sulphuric acid, less than 15% Na 2 SO 4 and not more than 0.02% ZnSO 4 as an impurity, maintaining the bath temperature from 20-30‹ C., the maximum immersion period of the filaments in the coagulating bath being determined from the formula t=0.35#d-0.18, where t is the maximum immersion period in seconds and d is the individual filament denier of the finished yarn, stretching the filaments by at least 60% of their original length on emerging from the bath and collecting the filaments at a speed of at least 60 m./min. Preferably, the ball fall viscosity of the viscose is from 80-120 sees. and the yarn is collected as a cake in a centrifugal box. Specification 915,803 is referred to.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL257309D NL257309A (en) | 1959-10-28 | ||
| GB3651759A GB961397A (en) | 1959-10-28 | 1959-10-28 | Improvements in and relating to the production of yarns of regenerated cellulose continuous filaments |
| CH1198360A CH420474A (en) | 1959-10-28 | 1960-10-26 | Process for the production of cellulose hydrate filaments or fibers |
| BE596550A BE596550A (en) | 1959-10-28 | 1960-10-28 | Improvements in the production of yarns formed from continuous filaments of regenerated cellulose |
| FR842539A FR1278657A (en) | 1959-10-28 | 1960-10-28 | Improvements in the production of continuous filament yarns of regenerated cellulose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3651759A GB961397A (en) | 1959-10-28 | 1959-10-28 | Improvements in and relating to the production of yarns of regenerated cellulose continuous filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB961397A true GB961397A (en) | 1964-06-24 |
Family
ID=10388883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3651759A Expired GB961397A (en) | 1959-10-28 | 1959-10-28 | Improvements in and relating to the production of yarns of regenerated cellulose continuous filaments |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE596550A (en) |
| CH (1) | CH420474A (en) |
| GB (1) | GB961397A (en) |
| NL (1) | NL257309A (en) |
-
0
- NL NL257309D patent/NL257309A/xx unknown
-
1959
- 1959-10-28 GB GB3651759A patent/GB961397A/en not_active Expired
-
1960
- 1960-10-26 CH CH1198360A patent/CH420474A/en unknown
- 1960-10-28 BE BE596550A patent/BE596550A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL257309A (en) | |
| CH420474A (en) | 1966-09-15 |
| BE596550A (en) | 1961-02-15 |
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