GB921483A - Improvements in or relating to the production of filaments - Google Patents

Improvements in or relating to the production of filaments

Info

Publication number
GB921483A
GB921483A GB19200/59A GB1920059A GB921483A GB 921483 A GB921483 A GB 921483A GB 19200/59 A GB19200/59 A GB 19200/59A GB 1920059 A GB1920059 A GB 1920059A GB 921483 A GB921483 A GB 921483A
Authority
GB
United Kingdom
Prior art keywords
precipitation bath
washing
nitric acid
weight
bath
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
GB19200/59A
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.)
Lonza Electric and Chemical Works Ltd
Original Assignee
Lonza Electric and Chemical Works 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 Lonza Electric and Chemical Works Ltd filed Critical Lonza Electric and Chemical Works Ltd
Publication of GB921483A publication Critical patent/GB921483A/en
Expired legal-status Critical Current

Links

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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0445—Supporting filaments or the like during their treatment while in continuous movement using rollers with mutually inclined axes
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/06—Washing or drying
    • 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
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D01F13/04—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of synthetic polymers
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

A process for washing filaments obtained from polymers of acrylonitrile or from copolymers containing a major proportion of acrylonitrile units which have been produced by extruding a spinning solution consisting of the polymer or copolymer in an aqueous nitric acid solution containing at least 52% by weight of nitric acid into an aqueous precipitation bath containing less than 50% by weight of <PICT:0921483/IV(a)/1> nitric acid comprises washing the filaments leaving the precipitation bath continuously in countercurrent with a quantity of water which is at most sufficient for diluting the solvent transferred with the polymer or copolymer into the precipitation bath to the precipitation bath concentration and combining the washing liquid with the precipitation bath whereby practically all the solvent is recovered in the precipitation bath. In a preferred embodiment, a spinning solution consisting of 120 parts by weight of polyacrylonitrile and 880 parts of 59% HNO3 is fed into a precipitation bath 3 via a nozzle 4 which has 100 holes each with in diameter of 0,4 mm. 44% HNO3 circulates in the bath 3 at a temperature of -2 DEG to 6 DEG C. 10 cm. in front of the nozzle 4, the filament structure is taken up by withdrawal devices 5 and 6 at a velocity of 3,5 and 13,0 metres per second respectively, and then by washing devices 7 and 8 at a velocity of 13,5 metres per second. A controlled supply of water is fed to washing device 7 by means of a flow meter 13. The washing rollers may be made from polyvinyl chloride or may be covered with a cotton material of towel quality.
GB19200/59A 1958-06-06 1959-06-04 Improvements in or relating to the production of filaments Expired GB921483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6033858A CH373860A (en) 1958-06-06 1958-06-06 Method of making threads

Publications (1)

Publication Number Publication Date
GB921483A true GB921483A (en) 1963-03-20

Family

ID=4522887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19200/59A Expired GB921483A (en) 1958-06-06 1959-06-04 Improvements in or relating to the production of filaments

Country Status (7)

Country Link
US (1) US3035884A (en)
BE (1) BE579106A (en)
CH (1) CH373860A (en)
DE (1) DE1284031B (en)
FR (1) FR1226284A (en)
GB (1) GB921483A (en)
NL (2) NL239537A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014106477A1 (en) * 2013-01-04 2014-07-10 东莞巨扬电器有限公司 Rotatable structure, inductive assembly and illuminating device which use rotatable structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225811B (en) * 1959-03-19 1966-09-29 Asahi Chemical Ind Method for recovering the solvents
US11124895B2 (en) * 2013-10-29 2021-09-21 Braskem America, Inc. System and method for measuring out a polymer and first solvent mixture, device, system and method for extracting a solvent from at least one polymer strand, system and method for mechanically pre-recovering at least one liquid from at least one polymer strand, and a continuous system and method for the production of at least one polymer strand

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436028A (en) * 1944-12-19 1948-02-17 American Viscose Corp Microporous roll for drying continuous filaments
US2593555A (en) * 1948-01-23 1952-04-22 American Viscose Corp Apparatus for the treatment of filamentary materials, particularly with liquids
BE492867A (en) * 1948-12-23
BE506219A (en) * 1950-10-14
NL109261C (en) * 1952-12-03
US2871090A (en) * 1953-06-29 1959-01-27 Ind Rayon Corp Method for the manufacture and treatment of polyamide fibers
US2878097A (en) * 1956-08-27 1959-03-17 Halbig Paul Spinning of polyacrylonitrile filaments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014106477A1 (en) * 2013-01-04 2014-07-10 东莞巨扬电器有限公司 Rotatable structure, inductive assembly and illuminating device which use rotatable structure

Also Published As

Publication number Publication date
NL129518C (en) 1900-01-01
CH373860A (en) 1963-12-15
BE579106A (en) 1959-09-16
US3035884A (en) 1962-05-22
FR1226284A (en) 1960-07-11
NL239537A (en) 1900-01-01
DE1284031B (en) 1968-11-28

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