US2452130A - Method of spinning high tenacity viscose rayon - Google Patents

Method of spinning high tenacity viscose rayon Download PDF

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Publication number
US2452130A
US2452130A US658865A US65886546A US2452130A US 2452130 A US2452130 A US 2452130A US 658865 A US658865 A US 658865A US 65886546 A US65886546 A US 65886546A US 2452130 A US2452130 A US 2452130A
Authority
US
United States
Prior art keywords
bath
thread
rayon
formaldehyde
spinbath
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
US658865A
Other languages
English (en)
Inventor
Guillaume M A Kayser
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.)
Akzona Inc
Original Assignee
American Enka Corp
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
Priority claimed from GB2905345A external-priority patent/GB603864A/en
Application filed by American Enka Corp filed Critical American Enka Corp
Application granted granted Critical
Publication of US2452130A publication Critical patent/US2452130A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • 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
    • D01F2/08—Composition of the spinning solution or the bath
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/27—Process of spinning viscose where viscose has high degree of polymerization

Definitions

  • the present invention relates to the manufacture of viscose rayon and more particularly to a process in which rayon threads formed from visoose are precipitated in an acid spinbath and subsequently highly stretched in a hot dilute acid bath in order to increase the strength of the threads.
  • the strength-of viscose yarn can be increased by stretching the same, preferably within a short time after it leaves the spinbath, and the strength increases in direct proportion to the increase in stretch.
  • the system generally'used is known as the two-bath spinning process, and includes a normal spinbath containing sulphuric acid and salts such as sodium sulphate, magnesium suiphate and zinc sulphate, and a second bath which is maintained at a high temperature, for example, in the neighborhood of 90 C. At this temperature, a high degree of stretch can be imparted to the thread during its passage therethrough.
  • This secpnd hot bath is weakly acid as a result of a small amount of acid being carried over from the spinbath by the thread and inpractice, preferably should not exceed 2 sul-- phuric acid.
  • the stretching in the second bath is effected by means of friction guides or between two or more disks or rollers or similar devices driven at different speeds. Although the stretchability of the thread :is increased when using this twobath process, the stretch is limited to a fixed value. It cannot exceed the breaking point of the thread and therefore the point at which the thread-break occurs determines the maximum stretch and maximum increaserin strength.
  • Example 2 A viscose of 8% cellulose and 7% alkali content and 33% carbon disulphide was ripened for 20 hours at 10 C. The spinning viscosity was then 55. It was spun into a thread of 100 denier and 40 filaments. The spinbath contained 9% sulphuric acid, 18% sodium sulphate, 5%
  • a method of manufacturing high tenacity viscose rayon involving the use of the two-bath system which comprises spinning the rayon in a precipitating bath containing sulphuric acid and salts and to which has been added a small amount of formaldehyde, passing the rayon to a second hot, dilute acid bath and during the passage therethrough effecting a high stretch on the rayon.
  • a method of manufacturing high tenacity viscose rayon involving the use of the two-bath system which comprises spinning the rayon in a precipitating bath containing sulphuric acid and salts and to which has been added not more than 2% formaldehyde based on the weight of the bath, passing the rayon to a second hot, dilute acid bath and during the passage therethrough effecting a high stretch on the rayon.
  • a method of manufacturing high tenacity viscose rayon which comprises coagulating. the rayon in a spinbath containing sulphuric acidand salts, passing the rayon through-a water bath containing not morethan 2% formaldehyde'based on-the weight of the bath, and finallystretching the rayon while passing the same through a hot bath maintained at a temperature in the neighborhoodof 90 C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
US658865A 1943-12-17 1946-04-01 Method of spinning high tenacity viscose rayon Expired - Lifetime US2452130A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEN1955D DE941009C (de) 1943-12-17 1943-12-17 Verfahren zur Herstellung von kuenstlichen Faeden aus Viscose
GB2905345A GB603864A (en) 1945-11-01 1945-11-01 Improved process for making very strong artificial threads

Publications (1)

Publication Number Publication Date
US2452130A true US2452130A (en) 1948-10-26

Family

ID=25988539

Family Applications (1)

Application Number Title Priority Date Filing Date
US658865A Expired - Lifetime US2452130A (en) 1943-12-17 1946-04-01 Method of spinning high tenacity viscose rayon

Country Status (6)

Country Link
US (1) US2452130A (de)
BE (1) BE460531A (de)
CH (1) CH248771A (de)
DE (1) DE941009C (de)
FR (1) FR917814A (de)
NL (1) NL60647C (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787517A (en) * 1953-02-10 1957-04-02 American Enka Corp Manufacture of artificial viscose products
DE1028285B (de) * 1956-03-02 1958-04-17 Glanzstoff Ag Verfahren zur Herstellung von Faeden nach dem Viskose-Spinnverfahren
US2860480A (en) * 1956-04-18 1958-11-18 Du Pont Regenerated cellulose structures and process for producing them
US2918348A (en) * 1957-09-23 1959-12-22 Du Pont Process of extruding viscose wherein a formaldehyde containing acid bath solution is contacted with activated charcoal
US2937070A (en) * 1955-08-02 1960-05-17 Du Pont Viscose process
US3007764A (en) * 1957-10-01 1961-11-07 Du Pont Process of preparing viscose rayon
US3007766A (en) * 1958-01-04 1961-11-07 American Enka Corp Production of viscose rayon
US3018158A (en) * 1959-05-05 1962-01-23 Rayonier Inc Viscose process
US3038778A (en) * 1957-06-21 1962-06-12 American Enka Corp Manufacture of viscose rayon
US3109698A (en) * 1962-04-02 1963-11-05 Courtaulds North America Inc Method for making high tenacity regenerated cellulose staple fiber
US3351696A (en) * 1960-04-22 1967-11-07 Cta Cie Ind De Textiles Artifi Method for producing regenerated cellulose products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE439359C (de) * 1925-01-17 1927-01-08 Hermann Jentgen Verfahren zur Herstellung kuenstlicher Faeden o. dgl. aus Viskose
GB335605A (en) * 1928-08-10 1930-09-29 Waldhof Zellstoff Fab Improvements in or relating to the production of artificial silk or the like from viscose solution
US2348415A (en) * 1941-05-09 1944-05-09 American Enka Corp Manufacture of rayon

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE236297C (de) *
DE382086C (de) * 1920-02-03 1923-09-28 Hans Karplus Dr Verfahren zur Erhoehung der Festigkeit, insbesondere der Nassfestigkeit von Kunstseide, Stapelfaser und von aus ihnen hergestellten Geweben
CH148067A (de) * 1929-03-21 1931-07-15 Heberlein & Co Ag Verfahren zum Erzeugen von Gebilden aus regenerierter Zellulose.
FR707516A (fr) * 1930-03-13 1931-07-09 Procédé pour la fabrication de fils, rubans, pailles, pellicules et autres produits artificiels en matière cellulosique
AT148120B (de) * 1933-03-29 1936-12-28 Ernst Dr Freund Verfahren zur Behandlung von geformten künstlichen Gebilden aus Cellulosexanthogensäure, deren Salzen und Derivaten.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE439359C (de) * 1925-01-17 1927-01-08 Hermann Jentgen Verfahren zur Herstellung kuenstlicher Faeden o. dgl. aus Viskose
GB335605A (en) * 1928-08-10 1930-09-29 Waldhof Zellstoff Fab Improvements in or relating to the production of artificial silk or the like from viscose solution
US2348415A (en) * 1941-05-09 1944-05-09 American Enka Corp Manufacture of rayon

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787517A (en) * 1953-02-10 1957-04-02 American Enka Corp Manufacture of artificial viscose products
US2937070A (en) * 1955-08-02 1960-05-17 Du Pont Viscose process
DE1028285B (de) * 1956-03-02 1958-04-17 Glanzstoff Ag Verfahren zur Herstellung von Faeden nach dem Viskose-Spinnverfahren
US2860480A (en) * 1956-04-18 1958-11-18 Du Pont Regenerated cellulose structures and process for producing them
US3038778A (en) * 1957-06-21 1962-06-12 American Enka Corp Manufacture of viscose rayon
US2918348A (en) * 1957-09-23 1959-12-22 Du Pont Process of extruding viscose wherein a formaldehyde containing acid bath solution is contacted with activated charcoal
US3007764A (en) * 1957-10-01 1961-11-07 Du Pont Process of preparing viscose rayon
US3007766A (en) * 1958-01-04 1961-11-07 American Enka Corp Production of viscose rayon
US3018158A (en) * 1959-05-05 1962-01-23 Rayonier Inc Viscose process
US3351696A (en) * 1960-04-22 1967-11-07 Cta Cie Ind De Textiles Artifi Method for producing regenerated cellulose products
US3109698A (en) * 1962-04-02 1963-11-05 Courtaulds North America Inc Method for making high tenacity regenerated cellulose staple fiber

Also Published As

Publication number Publication date
FR917814A (fr) 1947-01-22
CH248771A (de) 1947-05-31
BE460531A (de) 1946-04-05
DE941009C (de) 1956-03-29
NL60647C (de) 1948-02-16

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