US2511699A - Method for spinning viscose - Google Patents

Method for spinning viscose Download PDF

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Publication number
US2511699A
US2511699A US58248A US5824848A US2511699A US 2511699 A US2511699 A US 2511699A US 58248 A US58248 A US 58248A US 5824848 A US5824848 A US 5824848A US 2511699 A US2511699 A US 2511699A
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US
United States
Prior art keywords
tube
bath
spinneret
filament
viscose
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 - Lifetime
Application number
US58248A
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English (en)
Inventor
Drisch Nicolas
Priou Robert
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 des Textiles Artificiels SA
Original Assignee
Comptoir Textiles Artificiels
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 filed Critical Comptoir Textiles Artificiels
Application granted granted Critical
Publication of US2511699A publication Critical patent/US2511699A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01D5/06—Wet 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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose

Definitions

  • This invention relates to a method for spinning viscose to be used in the manufacture of rayon, iibranne, erin, lame, and the like, and has for an object to provide a method of the above type wherein the rate of spinning can be considerably increased, and the filament can be further drawn out, without rupturing or parting the strands.
  • Another object is to provide a method of the above type having novel and improved characteristics.
  • the filaments from the spinneret are passed through a straight tube of suitable diameter which is immersed in the bath.
  • the tube begins at a point a short distance beyond the spinneret and is positioned in axial alignment with the feed mechanism so that the filaments proceed in a straight line from the spinneret to the feed mechanism.
  • the tube is of a diameter such that the liquid is entrained therein and iiows therethrough due solely to the motion of the filaments.
  • a spinneret tube I bearing a spinneret 2 is immersed in a coagulating bath 3.
  • a pump shown schematically at I feeds viscose to the spinneret at a controlled rate.
  • the filament is coagulated at the surface by the bath and then enters a glass tube 4, thus drawing the bath through it.
  • the filament makes one or more turns around a feed roller 5, whereupon it continues to the roller 6 which revolves at a higher circumferential speed than the roller for drawing out the filament.
  • This elongation of the filament may be facilitated by immersion thereof in a bath of hot water between the rollers.
  • the filament In the absence of the tube 4, all other things being equal, the filament frequently breaks or is greatly impaired by the presence of broken strands which are partially rolled up on the second roller B. With the addition of the tube 4 these difficulties are practically eliminated, and the degree of elongation may even be increased to 64% to 70%.
  • the filament obtained by this process possesses excellent mechanical properties.
  • the mouth of the tube 4 is advantageous to locate the mouth of the tube 4 as close as possible to the spinneret 2.
  • the only limitation is the necessity of preventing contact between the fine strands, which are still very fragile, and the opening or wall of the tube. It is essential to center the latter accurately around the straight line connecting the center of the spinneret and the point where the filament passes onto the first feed roller 5, or the point of convergence on the first guide, if any, in advance of the feed roller.
  • the bath is drawn into the tube by the filaments and shortly reaches a condition of equilibrium which depends primarily on the speed and. weight of the thread and on the diameter of the tube. In general, a larger diameter should be used for a thicker filament.
  • the spinneret 2 may have holes and may be immersed in a coagulating bath containing g. of sulfuric acid, 260 g. of sulfate of soda and 40 g. of zinc sulfate per liter heated to 550 C.
  • the pump l0 may feed the viscose to the spinneret at a rate corresponding to 200 denier.
  • the tube may be 60 cm. in length, 1 em. in diameter and may begin 2 or 3 cm. from the spinneret.
  • a more concentrated or more viscous bath requires a larger tube. This is the case, for example, in sulfuric acid baths in excess of 53 C., which require tubes of e. g. 20 to 25 mm. It is difficult to place limits on the tube diameters, but it is desirable to use tubes suiciently small to force the circulation, which should tend to a speed corresponding to that of the filament.
  • the feed roller 5 may have a circumferential velocity adapted to draw the filament through the tube 4 at a rate of 100 meters per minute.
  • the circumferential speed of the feed roller 8 may be of the order of meters per minute to produce an elongation of 50% or may be such as to produce an elongation of from 64% to 70%.
  • the filament between the rolls 5 and 6 may be immersed in a Water bath at 85 C. to 90 C. to facilitate the drawing operation.
  • the method of spinning viscose for the manufacture of rayon and the like which comprises ejecting the viscose from a spinneret into a coagulating bath and drawing the filaments in a straight line through a straight cylindrical open-ended tube of small diameter immersed at both ends in said bath and centered with respect to said spinner-et, to keep the filaments out of contact with the inner wall of the tube, and inducing a flow of the bath through said tube solely by the axial motion of the filament bundle through the tube.

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  • 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)
US58248A 1947-11-10 1948-11-04 Method for spinning viscose Expired - Lifetime US2511699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1006078T 1947-11-10

Publications (1)

Publication Number Publication Date
US2511699A true US2511699A (en) 1950-06-13

Family

ID=9565414

Family Applications (1)

Application Number Title Priority Date Filing Date
US58248A Expired - Lifetime US2511699A (en) 1947-11-10 1948-11-04 Method for spinning viscose

Country Status (6)

Country Link
US (1) US2511699A (xx)
BE (2) BE485663A (xx)
CH (1) CH275752A (xx)
FR (1) FR1006078A (xx)
GB (1) GB655516A (xx)
NL (1) NL72881C (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705184A (en) * 1949-08-25 1955-03-29 Textile & Chemical Res Company Process for the production of rayon products
US2711559A (en) * 1952-06-28 1955-06-28 Celanese Corp Viscose spinning process and apparatus
US2908937A (en) * 1955-01-11 1959-10-20 American Enka Corp Method and apparatus for the manufacture of yarn
US2919464A (en) * 1956-11-27 1960-01-05 American Viscose Corp Tube spinning
US2954270A (en) * 1955-12-14 1960-09-27 Chimiotex Sa Process of producing a shrinkable cellulose textile filament
US3002804A (en) * 1958-11-28 1961-10-03 Du Pont Process of melt spinning and stretching filaments by passing them through liquid drag bath
US3219740A (en) * 1961-05-23 1965-11-23 Teikoku Jinzo Kenshi Kk High speed tubular spinning of fine viscose rayon yarn
US4361532A (en) * 1981-01-09 1982-11-30 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the continuous spinning of viscose rayon

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE552768A (xx) * 1956-04-11
FR2718157B1 (fr) * 1994-03-29 1996-05-15 Detex Métier de filature de fils chimiques.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243116A (en) * 1936-03-09 1941-05-27 American Bemberg Corp Apparatus for use in manufacturing artificial filaments
US2440057A (en) * 1944-03-15 1948-04-20 Du Pont Production of viscose rayon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243116A (en) * 1936-03-09 1941-05-27 American Bemberg Corp Apparatus for use in manufacturing artificial filaments
US2440057A (en) * 1944-03-15 1948-04-20 Du Pont Production of viscose rayon

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705184A (en) * 1949-08-25 1955-03-29 Textile & Chemical Res Company Process for the production of rayon products
US2711559A (en) * 1952-06-28 1955-06-28 Celanese Corp Viscose spinning process and apparatus
US2908937A (en) * 1955-01-11 1959-10-20 American Enka Corp Method and apparatus for the manufacture of yarn
US2954270A (en) * 1955-12-14 1960-09-27 Chimiotex Sa Process of producing a shrinkable cellulose textile filament
US2919464A (en) * 1956-11-27 1960-01-05 American Viscose Corp Tube spinning
US3002804A (en) * 1958-11-28 1961-10-03 Du Pont Process of melt spinning and stretching filaments by passing them through liquid drag bath
US3219740A (en) * 1961-05-23 1965-11-23 Teikoku Jinzo Kenshi Kk High speed tubular spinning of fine viscose rayon yarn
US4361532A (en) * 1981-01-09 1982-11-30 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the continuous spinning of viscose rayon

Also Published As

Publication number Publication date
NL72881C (xx) 1953-08-15
BE547725A (xx) 1956-05-31
FR1006078A (fr) 1952-04-18
BE485663A (xx) 1948-11-30
GB655516A (en) 1951-07-25
CH275752A (fr) 1951-06-15

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