GB952390A - Viscose regenerated cellulose fibr e and process for making same - Google Patents

Viscose regenerated cellulose fibr e and process for making same

Info

Publication number
GB952390A
GB952390A GB38425/61A GB3842561A GB952390A GB 952390 A GB952390 A GB 952390A GB 38425/61 A GB38425/61 A GB 38425/61A GB 3842561 A GB3842561 A GB 3842561A GB 952390 A GB952390 A GB 952390A
Authority
GB
United Kingdom
Prior art keywords
viscose
coagulating bath
sulphuric acid
filaments
cellulose
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
GB38425/61A
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Publication of GB952390A publication Critical patent/GB952390A/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
    • D01F2/06—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
    • D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
    • 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

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

952,390. Viscose spinning. MITSUBISHI RAYON CO. Ltd. Oct. 26, 1961 [Oct. 27, 1960], No. 38425/61. Drawings to Specification. Heading B5B. Regenerated cellulose filaments of 0.5-30 denier are made by extruding a viscose of viscosity 100-500 poises and a salt point of 9-20 into a coagulating bath held at 10- 30‹ C. containing 0.01%-0.07% anhydrous zinc sulphate, 1-10% anhydrous sodium sulphate, and a limited concentration of sulphuric acid provided by the following equations: Minimum sulphuric acid concentration (%) by weight: = 0.33A + 0.02B - 5C + 0.13#D - 0.24 Maximum sulphuric acid concentration (%) by weight: = 0.38A + 0.02B + 2C + 0.27 #D - 0.5 where A = % NaOH in the viscose, B = % Na 2 SO 4 in the coagulating bath, C = % ZnSO 4 in the coagulating bath, and D is the single filament denier of the fibres to be spun. Preferably, viscose having a degree of polymerization of its cellulose of 400-500, a viscosity of 150-400 poises and a salt point of 12-16 is extruded into a coagulating bath containing 0.02%-0.04% anhydrous zinc sulphate, 1-5% anhydrous sodium sulphate, the sulphuric acid concentration being determined by the above equations. Alkali cellulose is preferably xanthalted with 40-50%, based on the cellulose, of carbon disulphide, to make the viscose. Suitably the coagulating bath temperature is 15-25- C. and the immersion length of the filaments is 20-50 cm. The tow of extruded filaments may be led through a spinning tube immersed in the coagulating bath and positioned near the spinneret and on withdrawal from the bath may be stretched in air or alternatively in a second bath containing less than 4% by weight of sulphuric acid and held at above 50‹ C. Filaments so made (which may be of very low denier) have a high Young's modulus in the wet state, low water swelling, a high strength, a high knot strength and good dyeability.
GB38425/61A 1960-10-27 1961-10-26 Viscose regenerated cellulose fibr e and process for making same Expired GB952390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4345960 1960-10-27

Publications (1)

Publication Number Publication Date
GB952390A true GB952390A (en) 1964-03-18

Family

ID=12664273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38425/61A Expired GB952390A (en) 1960-10-27 1961-10-26 Viscose regenerated cellulose fibr e and process for making same

Country Status (5)

Country Link
US (1) US3108849A (en)
BE (1) BE609679A (en)
CH (1) CH480453A (en)
DE (1) DE1469108A1 (en)
GB (1) GB952390A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632439A (en) * 1962-05-16
BE632898A (en) * 1962-05-28
BE638775A (en) * 1962-11-06
GB1021537A (en) * 1963-03-07 1966-03-02 Teijin Ltd Method of producing viscose rayon staple and a spinning apparatus for use in the method
GB1080671A (en) * 1963-09-10 1967-08-23 Mitsubishi Rayon Co Highly crimped regenerated cellulose fibres and process for producing the same
US3506754A (en) * 1967-09-27 1970-04-14 Tachikawa Res Inst Process for manufacturing rayon having high degree of polymerization by the viscose process
DE102013002833B4 (en) * 2013-02-19 2017-03-23 Deutsche Institute Für Textil- Und Faserforschung Denkendorf A process for the production of regenerated cellulose fibers and the use of regenerated cellulose fibers produced by the process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE581631A (en) * 1958-08-12 1900-01-01

Also Published As

Publication number Publication date
US3108849A (en) 1963-10-29
BE609679A (en) 1962-02-15
DE1469108A1 (en) 1968-12-05
CH480453A (en) 1969-10-31

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