GB238842A - Process of manufacture of artificial silk and of artificial threads or filaments andapparatus therefor - Google Patents

Process of manufacture of artificial silk and of artificial threads or filaments andapparatus therefor

Info

Publication number
GB238842A
GB238842A GB2221/25A GB222125A GB238842A GB 238842 A GB238842 A GB 238842A GB 2221/25 A GB2221/25 A GB 2221/25A GB 222125 A GB222125 A GB 222125A GB 238842 A GB238842 A GB 238842A
Authority
GB
United Kingdom
Prior art keywords
filaments
solvent
spinning
cells
cell
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
GB2221/25A
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.)
RHODIASETA
Original Assignee
RHODIASETA
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 RHODIASETA filed Critical RHODIASETA
Publication of GB238842A publication Critical patent/GB238842A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/04—Dry spinning methods
    • 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

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

Abstract

238,842. Soc. pour la Fabrication de la Soie Rhodiaseta. Aug. 22, 1924, [Convention date]. Apparatus for making filaments; cellulose solutions, processes for making filaments from. - In the dry spinning of artificial silk &c. from solutions of cellulose esters, ethers or other cellulose derivatives, in particular cellulose acetate solutions, the gaseous medium introduced into the cells is already richly laden with the vapours of the solvent whereby filaments of a circular or almost circular cross section are obtained. Bv such an adjustment, the formation of an initial hard layer on the exterior of the filaments is prevented, so permitting a free passage of solvent from the interior and facilitating the drying process; in addition the solvents can be readily recovered by direct condensation. Conveniently, spinning takes place in a closed system constituted by the cell a, condenser g, propelling-device e, and re-heater j; the spinning solution is supplied to the spinning-head b through a pipe c jacketed for heating, and the filaments leave the cell through a small opening d; a branch n connected to aspirating and solventrecovery apparatus enables gas to be withdrawn so as to create within the cell a depression sufficient to prevent the escape of solvent vapours through the outlet d. Alternatively, a system employing natural circulation may be used, the evaporative gases being supplied to the upper part of the cells and after being laden with solvent, falling by gravity. To obviate explosions, it is convenient to employ an inert gas as the medium in circulation. The apparatus may be otherwise arranged and constructed as described in Specification 233,384. The Specification as open to inspection under Sect. 91 (3) (a) refers to the manufacture of artificial silk of cross-sections other than circular, by suitably varying the proportion of solvent vapours in the gaseous medium introduced into the cells. This subject-matter does not appear in the Specification as accepted.
GB2221/25A 1924-08-22 1925-01-24 Process of manufacture of artificial silk and of artificial threads or filaments andapparatus therefor Expired GB238842A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR598081T 1924-08-22
FR32029T 1926-05-20

Publications (1)

Publication Number Publication Date
GB238842A true GB238842A (en) 1926-05-25

Family

ID=26182623

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2221/25A Expired GB238842A (en) 1924-08-22 1925-01-24 Process of manufacture of artificial silk and of artificial threads or filaments andapparatus therefor
GB18340/26A Expired GB269377A (en) 1924-08-22 1926-07-22 Improvements in methods and apparatus for the manufacture of artificial silk

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB18340/26A Expired GB269377A (en) 1924-08-22 1926-07-22 Improvements in methods and apparatus for the manufacture of artificial silk

Country Status (2)

Country Link
FR (2) FR598081A (en)
GB (2) GB238842A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311484A (en) * 1996-03-27 1997-10-01 Viscofil Consolidated Corp Solvent recovery in dope spinning process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95935C (en) * 1955-02-10
DE1261271B (en) * 1960-09-22 1968-02-15 Metallgesellschaft Ag Device for limiting the amount of exhaust air on viscose spinning machines
DE1280465B (en) * 1961-09-18 1968-10-17 Eastman Kodak Co Device for removing lubricants or lubricants or the like from the exhaust gases of a nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2311484A (en) * 1996-03-27 1997-10-01 Viscofil Consolidated Corp Solvent recovery in dope spinning process

Also Published As

Publication number Publication date
FR598081A (en) 1925-12-05
GB269377A (en) 1927-04-21
FR32029E (en) 1927-08-29

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