GB652645A - Improved process and apparatus for the manufacture of viscose rayon - Google Patents

Improved process and apparatus for the manufacture of viscose rayon

Info

Publication number
GB652645A
GB652645A GB5069/48A GB506948A GB652645A GB 652645 A GB652645 A GB 652645A GB 5069/48 A GB5069/48 A GB 5069/48A GB 506948 A GB506948 A GB 506948A GB 652645 A GB652645 A GB 652645A
Authority
GB
United Kingdom
Prior art keywords
thread
roller
per cent
bath
travel
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
GB5069/48A
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.)
COMPTOIR TEXTILES ARTIFICIELS
Comptoir des Textiles Artificiels SA
Original Assignee
COMPTOIR TEXTILES ARTIFICIELS
Comptoir des Textiles Artificiels SA
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
Application filed by COMPTOIR TEXTILES ARTIFICIELS, Comptoir des Textiles Artificiels SA filed Critical COMPTOIR TEXTILES ARTIFICIELS
Publication of GB652645A publication Critical patent/GB652645A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/229—Relaxing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products
    • D01D7/02—Collecting the newly-spun products in centrifugal spinning pots
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

<PICT:0652645/IV (a)/1> <PICT:0652645/IV (a)/2> Viscose is extruded into a coagulating bath and the thread obtained is subjected to a stretching of at least 150 per cent, led over at least one feed roller, and caused to travel in the wet state for 3 or more metres in air in a straight or sinous path between the last feed roller, or between the point where the thread reaches the last feed roller, and the winding device at a rate such that the travel lasts for a period of at least 3 seconds, and under tension such that the length of the thread is maintained substantially constant. The long air path allows internal tensions set up by the stretching operation to be relieved before the thread reaches the winding device. This may be a centrifugal pot or a bobbin or reel. The thread may pass directly to the winding device or may first pass through a washing bath. The thread may travel at 75-100 metres per minute and the air path may be 3-10 or more metres in length. A solution of 55 or more per cent of sulphuric acid may be used for the coagulating bath, and the thread may be stretched in presence of this acid or in a following bath of hot water. The threads obtained may have a tenacity of 4, 5, or more grams per denier and an extensibility of 9-10 per cent. As shown in Fig. 1, a thread 3 after leaving feed rolls 1, 2, describes a sinuous path by passing round deviating rods, rollers, wheels, or similar devices 4-8 before entering the funnel 9 of the spinning pot 10. The path of the thread may be increased by causing it to travel in loops round roller 2. As shown in Fig. 2, viscose is extruded from nozzle 23 and the thread 3 is formed in bath 22 which contains sulphuric acid of 55 per cent strength. The thread is stretched between feed rollers 25 and 2 by 200 per cent. It then traverses roller 2 in an axial direction in a number of loops, the spacing being maintained by the inclined rod 26. The thread may pass round roller 25 one or more times. It passes from roller 2 to a washing bath 27, and then to a centrifugal spinning pot 10.
GB5069/48A 1947-04-14 1948-02-20 Improved process and apparatus for the manufacture of viscose rayon Expired GB652645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR56757T 1947-04-14

Publications (1)

Publication Number Publication Date
GB652645A true GB652645A (en) 1951-04-25

Family

ID=8690911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5069/48A Expired GB652645A (en) 1947-04-14 1948-02-20 Improved process and apparatus for the manufacture of viscose rayon

Country Status (6)

Country Link
US (1) US2591243A (en)
BE (1) BE480557A (en)
CH (1) CH282044A (en)
FR (2) FR943103A (en)
GB (1) GB652645A (en)
NL (1) NL76321C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165804B (en) * 1954-04-30 1964-03-19 Textile And Chemical Res Compa Method and device for washing out viscose artificial silk threads

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399518B (en) * 1990-08-10 1995-05-26 Glanzstoff Austria SPINNING MACHINE FOR CONTINUOUS PRODUCTION OF FILAMENTS
CN113584615B (en) * 2021-09-01 2022-05-03 福建永荣锦江股份有限公司 Coaxial driving centrifugal spinning winding device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE361387A (en) * 1925-06-20
US2309072A (en) * 1940-07-29 1943-01-19 Ind Rayon Corp Manufacture of thread or the like
US2348415A (en) * 1941-05-09 1944-05-09 American Enka Corp Manufacture of rayon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1165804B (en) * 1954-04-30 1964-03-19 Textile And Chemical Res Compa Method and device for washing out viscose artificial silk threads

Also Published As

Publication number Publication date
CH282044A (en) 1952-04-15
NL76321C (en)
FR56757E (en) 1952-10-06
BE480557A (en)
FR943103A (en) 1949-02-28
US2591243A (en) 1952-04-01

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