GB603864A - Improved process for making very strong artificial threads - Google Patents

Improved process for making very strong artificial threads

Info

Publication number
GB603864A
GB603864A GB2905345A GB2905345A GB603864A GB 603864 A GB603864 A GB 603864A GB 2905345 A GB2905345 A GB 2905345A GB 2905345 A GB2905345 A GB 2905345A GB 603864 A GB603864 A GB 603864A
Authority
GB
United Kingdom
Prior art keywords
bath
threads
thread
per cent
formaldehyde
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
GB2905345A
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.)
Onderzoekings Instituut Research
Original Assignee
Onderzoekings Instituut Research
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 to DEN1955D priority Critical patent/DE941009C/en
Priority to NL121254A priority patent/NL60647C/xx
Priority to BE460531D priority patent/BE460531A/xx
Application filed by Onderzoekings Instituut Research filed Critical Onderzoekings Instituut Research
Priority to GB2905345A priority patent/GB603864A/en
Priority to FR917814D priority patent/FR917814A/en
Priority to CH248771D priority patent/CH248771A/en
Priority to US658865A priority patent/US2452130A/en
Publication of GB603864A publication Critical patent/GB603864A/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
    • 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

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

Very strong threads of artificial silk are made by extruding viscose into a sulphuric acid-salt spinning bath containing a small proportion of formaldehyde or other aliphatic aldehyde and then stretching the threads so produced while they are passing through a second bath containing hot water. Alternatively, the aldehyde, instead of being present in the spinning bath, may be added to another bath containing water at the temperature of the spinning bath, and the threads may be passed through this bath before entering the hot water bath in which they are stretched. The formaldehyde strengthens the threads and enables them to be subjected to greater stretching tensions than are permissible without this addition. In an example, viscose containing 8 per cent of cellulose and 7 per cent of alkali is extruded into a bath containing sulphuric acid, sodium sulphate, magnesium sulphate, zinc sulphate, and 2 per cent of formaldehyde. After leaving the bath the freshly spun thread is led through a water bath heated to 90 DEG C. and containing a little acid owing to the spinning bath solution carried along by the thread. In this bath, the thread is stretched 120 per cent by means of rollers. A thread having a tensile strength of 3.5 grams per denier is obtained.
GB2905345A 1943-12-17 1945-11-01 Improved process for making very strong artificial threads Expired GB603864A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DEN1955D DE941009C (en) 1943-12-17 1943-12-17 Process for the production of artificial threads from viscose
NL121254A NL60647C (en) 1943-12-17 1945-09-24
BE460531D BE460531A (en) 1943-12-17 1945-10-05
GB2905345A GB603864A (en) 1945-11-01 1945-11-01 Improved process for making very strong artificial threads
FR917814D FR917814A (en) 1943-12-17 1945-11-03 Very resistant rayon spinning process
CH248771D CH248771A (en) 1943-12-17 1945-11-07 Process for spinning very strong viscose threads.
US658865A US2452130A (en) 1943-12-17 1946-04-01 Method of spinning high tenacity viscose rayon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2905345A GB603864A (en) 1945-11-01 1945-11-01 Improved process for making very strong artificial threads

Publications (1)

Publication Number Publication Date
GB603864A true GB603864A (en) 1948-06-24

Family

ID=10285439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2905345A Expired GB603864A (en) 1943-12-17 1945-11-01 Improved process for making very strong artificial threads

Country Status (1)

Country Link
GB (1) GB603864A (en)

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