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GB356427A - Improvements in or relating to the manufacture of fine artificial fibres by the wet spinning process - Google Patents

Improvements in or relating to the manufacture of fine artificial fibres by the wet spinning process

Info

Publication number
GB356427A
GB356427A GB24273/30A GB2427330A GB356427A GB 356427 A GB356427 A GB 356427A GB 24273/30 A GB24273/30 A GB 24273/30A GB 2427330 A GB2427330 A GB 2427330A GB 356427 A GB356427 A GB 356427A
Authority
GB
United Kingdom
Prior art keywords
roller
draught
nozzle
spinning process
less
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
GB24273/30A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB356427A publication Critical patent/GB356427A/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
    • D02J1/223—Stretching in a liquid bath
    • 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
    • D02J1/228—Stretching in two or more steps, with or without intermediate steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

<PICT:0356427/IV/1> In the preparation by the wet spinning process of artificial silk of fine titre and high tensile strength, two drawing rollers are used, the peripheral speed of the first being less than the discharge velocity of the spinning solution from the nozzle so that a draught of less than unity in obtained, whilst the peripheral speed of the second is greater than that of the first. The total draught, i.e. the ratio of the peripheral speed of the second roller to the discharge velocity at the nozzle may even be less than unity while observing the above conditions. In an example, unripened viscose is spun into a bath containing sulphuric acid and carbazoletetrasulphonic acid such that the p draught between the nozzle 1 and the first roller 4 is 0,4, and between the first roller 4 and the second roller 5 is 2,0; the total draught is therefore 0,8. The thread may be guided in its passage over the rollers by the arms a, b and c, and collected on a spool 7.
GB24273/30A 1929-08-14 1930-08-13 Improvements in or relating to the manufacture of fine artificial fibres by the wet spinning process Expired GB356427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE356427X 1929-08-14

Publications (1)

Publication Number Publication Date
GB356427A true GB356427A (en) 1931-09-10

Family

ID=6290274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24273/30A Expired GB356427A (en) 1929-08-14 1930-08-13 Improvements in or relating to the manufacture of fine artificial fibres by the wet spinning process

Country Status (4)

Country Link
US (1) US1960634A (en)
FR (1) FR700631A (en)
GB (1) GB356427A (en)
NL (1) NL30013C (en)

Also Published As

Publication number Publication date
NL30013C (en)
US1960634A (en) 1934-05-29
FR700631A (en) 1931-03-05

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