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GB815509A - Improvements relating to the production of regenerated cellulose filaments - Google Patents

Improvements relating to the production of regenerated cellulose filaments

Info

Publication number
GB815509A
GB815509A GB36893/55A GB3689355A GB815509A GB 815509 A GB815509 A GB 815509A GB 36893/55 A GB36893/55 A GB 36893/55A GB 3689355 A GB3689355 A GB 3689355A GB 815509 A GB815509 A GB 815509A
Authority
GB
United Kingdom
Prior art keywords
weight
per cent
filaments
cellulose
speed
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
Application number
GB36893/55A
Inventor
Ernest Edward Tallis
David Nicholson Tyler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 to US3126435D priority Critical patent/US3126435A/en
Priority to BE568921D priority patent/BE568921A/xx
Priority to DENDAT1072354D priority patent/DE1072354B/en
Priority to BE553667D priority patent/BE553667A/xx
Application filed by Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB36893/55A priority patent/GB815509A/en
Priority to ES0232590A priority patent/ES232590A1/en
Priority to CH356240D priority patent/CH356240A/en
Priority to FR1168249D priority patent/FR1168249A/en
Priority to GB20439/57A priority patent/GB827415A/en
Priority to US743720A priority patent/US2975023A/en
Priority to FR769023A priority patent/FR73792E/en
Publication of GB815509A publication Critical patent/GB815509A/en
Expired legal-status Critical Current

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

<PICT:0815509/IV (a)/1> In the production of regenerated cellulose filaments having a substantially circular or bean-shaped cross-section and a substantially all-skin structure, viscose made from cellulose having a degree of polymerization of at least 400 is extruded at a salt point between 6 and 15 into an aqueous coagulating bath containing sulphuric acid, zinc sulphate and sodium sulphate, the viscose containing between 0.5 and 10 per cent by weight, based on the weight of the cellulose, of a polyethylene oxide (or condensation product thereof) of average molecular weight between 300 and 10,000 and the filaments being drawn off at a speed not substantially greater than that defined by the curve shown in Fig. 1. After leaving the coagulating bath the filaments may be stretched in a hot acid bath, as described in Specification 467,500, [Group IV]. The extrusion ratio, which is defined as the ratio of the speed at which the filaments are drawn from the jet to the speed at which the viscose passes through the jet orifices, should be less than 1. In an example, viscose containing 6.0 per cent by weight of cellulose of average D.P.585, 7.0 per cent by weight of caustic soda and 3 per cent by weight, based on the cellulose, of a polyethylene oxide of average molecular weight 1000, and with a ball fall viscosity of 100 seconds, is spun at an extrusion ratio of 0.7 and at a salt figure of 9.2 into a spinning bath flowing through a tube concurrently with the filaments and containing 7.0 per cent by weight of sulphuric acid, 12 per cent by weight of zinc sulphate and 11 per cent by weight of sodium sulphate at 55 DEG C. The draw-off speed is 14 metres per minute, and the yarn is stretched 95 per cent through a second bath at 95 DEG C. containing 3.0 per cent by weight of sulphuric acid and less than 1.5 per cent by weight of total salts. After washing the yarn is dried on a heated drum, collected and subjected to physical tests, which are reported. Other examples are also given. Specifications 723,435, 739,072, 808,838 and 815,508 also are referred to.
GB36893/55A 1956-07-25 1956-07-25 Improvements relating to the production of regenerated cellulose filaments Expired GB815509A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US3126435D US3126435A (en) 1956-07-25 Production of regenerated cellulose
BE568921D BE568921A (en) 1956-07-25
DENDAT1072354D DE1072354B (en) 1956-07-25 Process for the production of regenerated cellulose thread
BE553667D BE553667A (en) 1956-07-25
GB36893/55A GB815509A (en) 1956-07-25 1956-07-25 Improvements relating to the production of regenerated cellulose filaments
ES0232590A ES232590A1 (en) 1956-07-25 1956-12-20 Improvements relating to the production of regenerated cellulose filaments
CH356240D CH356240A (en) 1956-07-25 1956-12-22 Process for the production of threads from regenerated cellulose and thread produced by this method
FR1168249D FR1168249A (en) 1956-07-25 1956-12-28 Improvements in the manufacture of regenerated cellulose filaments
GB20439/57A GB827415A (en) 1956-07-25 1957-06-28 Improvements relating to the production of regenerated cellulose filaments
US743720A US2975023A (en) 1956-07-25 1958-06-23 Production of regenerated cellulose filaments
FR769023A FR73792E (en) 1956-07-25 1958-06-27 Improvements in the manufacture of regenerated cellulose filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36893/55A GB815509A (en) 1956-07-25 1956-07-25 Improvements relating to the production of regenerated cellulose filaments

Publications (1)

Publication Number Publication Date
GB815509A true GB815509A (en) 1959-06-24

Family

ID=32348562

Family Applications (2)

Application Number Title Priority Date Filing Date
GB36893/55A Expired GB815509A (en) 1956-07-25 1956-07-25 Improvements relating to the production of regenerated cellulose filaments
GB20439/57A Expired GB827415A (en) 1956-07-25 1957-06-28 Improvements relating to the production of regenerated cellulose filaments

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB20439/57A Expired GB827415A (en) 1956-07-25 1957-06-28 Improvements relating to the production of regenerated cellulose filaments

Country Status (2)

Country Link
ES (1) ES232590A1 (en)
GB (2) GB815509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140205830A1 (en) * 2011-06-21 2014-07-24 Lenzing Ag High strength cellulosic filament its use, and method for the production thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506754A (en) * 1967-09-27 1970-04-14 Tachikawa Res Inst Process for manufacturing rayon having high degree of polymerization by the viscose process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140205830A1 (en) * 2011-06-21 2014-07-24 Lenzing Ag High strength cellulosic filament its use, and method for the production thereof

Also Published As

Publication number Publication date
GB827415A (en) 1960-02-03
ES232590A1 (en) 1957-06-16

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