US1558265A - Process of manufacturing artificial-silk threads from viscose - Google Patents

Process of manufacturing artificial-silk threads from viscose Download PDF

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Publication number
US1558265A
US1558265A US613541A US61354123A US1558265A US 1558265 A US1558265 A US 1558265A US 613541 A US613541 A US 613541A US 61354123 A US61354123 A US 61354123A US 1558265 A US1558265 A US 1558265A
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United States
Prior art keywords
viscose
silk threads
threads
manufacturing artificial
thread
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
US613541A
Inventor
Lams Isidore Octave Emile
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.)
FABRIQUE DE SOIE ARTIFICIELLE DE TUBIZE SA
SOIE ARTIFICIELLE DE TUBIZE SA
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SOIE ARTIFICIELLE DE TUBIZE SA
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
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Priority to US613541A priority Critical patent/US1558265A/en
Application granted granted Critical
Publication of US1558265A publication Critical patent/US1558265A/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
    • 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

Definitions

  • rsrnoun oc'rAvnEmLn mus or 'rm'arz n, BELGIUM, ASSIGNOR-Td FABRI'QUE DE sorn anrrrrorsmrn DE munrzn, soornrn axons ME, or BRUSSELS, BELGIUM.
  • My invention' relates to a process of'manufacturi'ng artificial silk threads from viscose.
  • One object of my invention is to produce a thread ofoellulose Xanthatewhich will be more extensible than the threads hitherto obtained so that it can be drawn out into a very thin thread before being precipitated into a thread of cellulose hydrate.
  • i further object of my invention is'to improve 1 the brilliancy andsuppleness of'the thread thus obtained.
  • my invention consists in making use of a special coagulating bath composed of ammonium formate at the minimum required concentration to neutralize the free soda which is present in the viscose solution and of sodium formats at the minimum required concentration to secure coagulation.
  • the viscose solution is projected as usually through fine orifices intothe above stated coagulating bath; the thread is drawn out according tothe well known method a-ndis finally precipitated in the form of a thread of cellulose hydrate by. any well known method for instance. by aid of an acid solution of weak concentration. it is however advisable to make this decomposition rapidly so as to avoid any possible disturbance in working resulting from the sticking or gluing of the threads to-each other.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Description

Patented Oct. 20, 1925.
ZUNITIED" sra t sazeyji TESV PATENT OFFICE. v
rsrnoun oc'rAvnEmLn mus; or 'rm'arz n, BELGIUM, ASSIGNOR-Td FABRI'QUE DE sorn anrrrrorsmrn DE munrzn, soornrn axons ME, or BRUSSELS, BELGIUM.
rations-s F MANUFAGTURINGARTIFIQIIAIL-SILK THREADS FROM VISCOSE.-.
No Drawing."
To all whom it may concern:
Be it known that I5, Ismoun Oo'rAvE EMILE LAMS, a Subject of the Kingof the Belgians,
' residingat'Tubize, in the Kingdom of Belgium, have invented certain new and useful Improvements in the Process of Manufacturing Artificial-Silk Threads'fro'm Viscose, oftwhich the following is a specification.
My invention'relates to a process of'manufacturi'ng artificial silk threads from viscose. One object of my invention is to produce a thread ofoellulose Xanthatewhich will be more extensible than the threads hitherto obtained so that it can be drawn out into a very thin thread before being precipitated into a thread of cellulose hydrate. a-
i further object of my invention is'to improve 1 the brilliancy andsuppleness of'the thread thus obtained.
l/Vith these objects in view my invention consists in making use of a special coagulating bath composed of ammonium formate at the minimum required concentration to neutralize the free soda which is present in the viscose solution and of sodium formats at the minimum required concentration to secure coagulation.
Experiences have shown that the follow-- easily drawn out into a i ery thin thread and Application filed January 18, 1923. Serial No. 613,541. I
which possess a coeilicient of drawing of 98%,v that is tosay that a length of -1 1n.
of the elementary thread or filaments issu-I ing from the spinning orifice can be drawn or stretched so as to present an increase of length of 98 cm. before breaking.
In carrying my invention into practice the viscose solution is projected as usually through fine orifices intothe above stated coagulating bath; the thread is drawn out according tothe well known method a-ndis finally precipitated in the form of a thread of cellulose hydrate by. any well known method for instance. by aid of an acid solution of weak concentration. it is however advisable to make this decomposition rapidly so as to avoid any possible disturbance in working resulting from the sticking or gluing of the threads to-each other.
YVhat I claim is:
1. In the process of manufacturing artificial silk threads from viscose, the steps which comprise subjecting viscose threads to the action of an aqueous solution cmitaining 13 to 15% of an'mionium formate and 13 to 18%of sodium iorrnate, drawing the threads while so coagulated, and then converting them into cellulose hydrate.
2. As. a new composition of matter, an aqueous solution of 13 to'15% of ammonium formate and 13 to 18% of sodium formate, the said composition having coagulating proerties whereby viscose threads are converted threads.
In testimony whereof I have affixed my signature.
into extensible cellulose Xanthate
US613541A 1923-01-18 1923-01-18 Process of manufacturing artificial-silk threads from viscose Expired - Lifetime US1558265A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

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US613541A US1558265A (en) 1923-01-18 1923-01-18 Process of manufacturing artificial-silk threads from viscose

Publications (1)

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