GB488500A - Improvements in the manufacture of artificial filaments and the like - Google Patents

Improvements in the manufacture of artificial filaments and the like

Info

Publication number
GB488500A
GB488500A GB51737A GB51737A GB488500A GB 488500 A GB488500 A GB 488500A GB 51737 A GB51737 A GB 51737A GB 51737 A GB51737 A GB 51737A GB 488500 A GB488500 A GB 488500A
Authority
GB
United Kingdom
Prior art keywords
jet
evaporative medium
medium
evaporative
per cent
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
GB51737A
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.)
Henry Dreyfuss Associates LLC
Original Assignee
Henry Dreyfuss Associates LLC
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 Henry Dreyfuss Associates LLC filed Critical Henry Dreyfuss Associates LLC
Priority to GB51737A priority Critical patent/GB488500A/en
Publication of GB488500A publication Critical patent/GB488500A/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
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process

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

Hollow filaments are prepared by extruding a solution of an organic derivative of cellulose in a volatile medium through a jet into a cell into which a current of evaporative medium at a raised temperature is introduced in the vicinity of the jet, the total quantity of evaporative medium flowing through the cell being such that the solvent concentration of the outgoing medium is at least 1 per cent by volume, and the volume of evaporative medium introduced in the vicinity of the jet being at least 40 per cent of that of the total evaporative medium. The temperature of the jet evaporative medium is preferably at least 40 DEG C. higher than the boiling point of the solvent constituent of the spinning solution, and the temperature of the spinning solution in the jet is preferably just below that at which blebbing occurs. The jet evaporative medium may constitute 60, 75 or 90 per cent or even the whole of the total evaporative medium, and may be introduced at the plane of the jet face or on either side of said plane and is preferably directed towards the filaments. Vapours of organic non-solvents, solvents, or swelling agents may be present in the jet evaporative medium. Specifications 300,998, 320,632, 325,233, [all in Class 2 (ii)], and 399,795 are referred to.
GB51737A 1937-01-07 1937-01-07 Improvements in the manufacture of artificial filaments and the like Expired GB488500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB51737A GB488500A (en) 1937-01-07 1937-01-07 Improvements in the manufacture of artificial filaments and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51737A GB488500A (en) 1937-01-07 1937-01-07 Improvements in the manufacture of artificial filaments and the like

Publications (1)

Publication Number Publication Date
GB488500A true GB488500A (en) 1938-07-07

Family

ID=9705749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51737A Expired GB488500A (en) 1937-01-07 1937-01-07 Improvements in the manufacture of artificial filaments and the like

Country Status (1)

Country Link
GB (1) GB488500A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182735A (en) 1978-05-25 1980-01-08 International Paper Company Production of high crimp, high strength, hollow rayon fibers
US4242411A (en) 1978-05-25 1980-12-30 International Paper Company High crimp, high strength, hollow rayon fibers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182735A (en) 1978-05-25 1980-01-08 International Paper Company Production of high crimp, high strength, hollow rayon fibers
US4242411A (en) 1978-05-25 1980-12-30 International Paper Company High crimp, high strength, hollow rayon fibers

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