US2591242A - Process for the manufacture of yarns from hydroxylated polyvinyl compounds - Google Patents

Process for the manufacture of yarns from hydroxylated polyvinyl compounds Download PDF

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Publication number
US2591242A
US2591242A US139458A US13945850A US2591242A US 2591242 A US2591242 A US 2591242A US 139458 A US139458 A US 139458A US 13945850 A US13945850 A US 13945850A US 2591242 A US2591242 A US 2591242A
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US
United States
Prior art keywords
yarn
package
spinning
yarns
solution
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
US139458A
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English (en)
Inventor
Drisch Nicolas
Herrbach Paul
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.)
TEXTILE and CHEM RES CO Ltd
TEXTILE AND CHEMICAL RESEARCH Co Ltd
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TEXTILE and CHEM RES 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.)
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Publication date
Application filed by TEXTILE and CHEM RES CO Ltd filed Critical TEXTILE and CHEM RES CO Ltd
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Publication of US2591242A publication Critical patent/US2591242A/en
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    • 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
    • D01F6/14—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 alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/017—Filament stretching apparatus

Definitions

  • This invention relates to the manufacture of spun yarn from hydroxylated polyvinyl compounds in an ammonium sulphate spinning bath
  • the spinning of soluble rayon may be accom--,
  • hydrophilic substances such as sodium alginate, carboxymethyl cellulose, etc.
  • Alginate threads are generally based on the calcium salt of alginic acid.
  • Filamentsof the aluminum salt of celluloseglycolic acid are not readily soluble in weak alkaline medium, but require more strongly a1kaline media which may be harmful to the wool with which such products are often mixed.
  • the present invention provides a simpler and more economical method of manufacturing yarn from hydroxylated poiyvinyl compounds, such as polyvinyl alcohol.
  • the cakes of yarn are dried in a ventilated hot air drier, producing a package of yarn carrying ammonium sulphate in the form of an impalpably line powder not affecting the strength of the individual filaments.
  • the cake is re-wound by passing the yarn through a tensioning device set to introduce friction adapted to remove most of the ammonium sulphate powder coating the yarn.
  • the yarn obtained is characterized by a very soft feel, complete independence of all filaments, and very satisfactory mechanical properties.
  • Eazample A solution of 15 per cent polyvinyl alcohol of low viscosity is prepared by heating with water. This solution is readily filterable, even after cooling and has a viscosity of about 115 poises at 20 C. It is desirable to add 1 per cent of lauryl pyridinium chloride calculated on the polyvinyl alcohol. The resulting solution is filtered and deaerated.
  • the spinning is effected in a known way.
  • the solution is spun in an aqueous bath containing 35 per cent ammonium sulphate at C. from a spinneret having 30 holes of /100 mm.
  • the thread is stretched 410 per cent between two rollers, the final speed being 40 to min.
  • the feed of the solution is controlled so as to yield 5 d. filaments.
  • the resulting yarn is collected in cakes in a spinning pot with a speed of 6000 R. P. M.
  • the resulting cakes are dried at C. in a ventilated drier. They are unwound on ordinary spoolers, with the filament passing through a tensioning device set to produce tensions of the order of 1 gram per denier, e. g. in a grid tensioning device, to scrape ad the adhering saline powder.
  • a grid tensioning and scraping device comprising sets of bars i6 and H which are interleaved and around which the yarn passes.
  • the friction produced by the bars is controlled by varying the overlap of the two sets of bars. In operation the bars introduce sufiicient friction to scrape the ammonium sulphate powder from the yarn as above described.
  • the resulting yarn has a dry strength of 1.90 grams per denier with an elongation at break of 40 per cent, and contains only a few per cent of salts, not enough to interfere with its use. It is very bright, flexible and soluble in water. It is suitable for all applications of soluble threads such as the manufacture of artificial embroidery or the like.
  • the method of producing spun yarns from aqueous solutions of polyvinyl alcohol which comprises spinning said solution into a concentrated aqueous saline solution, stretching the spun filaments during the spinning operation, winding the yarn thus produced onto a package, drying the package to produce a yarn having adherent powder thereon, and rewinding the yarn from said package while passing the yarn with the adherent powder thereon over stationary friction members to scrape the adherent powder from the surface thereof.
  • the method of producing spun yarns from aqueous solutions of polyvinyl alcohol which comprises spinning said solution into a concentrated aqueous saline solution, stretching the spun filaments during the spinning operation, winding the yarn thus produced onto a package, drying the package to produce a yarn havin adherent powder thereon, and rewinding the yarn from said package while passing the yarn with the adherent powder thereon over interleaved bars to apply friction to scrape the adherent'powder from the surface thereof.

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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)
US139458A 1949-02-01 1950-01-19 Process for the manufacture of yarns from hydroxylated polyvinyl compounds Expired - Lifetime US2591242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR825581X 1949-02-01

Publications (1)

Publication Number Publication Date
US2591242A true US2591242A (en) 1952-04-01

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ID=9282397

Family Applications (1)

Application Number Title Priority Date Filing Date
US139458A Expired - Lifetime US2591242A (en) 1949-02-01 1950-01-19 Process for the manufacture of yarns from hydroxylated polyvinyl compounds

Country Status (7)

Country Link
US (1) US2591242A (de)
BE (1) BE492120A (de)
CH (1) CH284045A (de)
DE (1) DE825581C (de)
FR (1) FR983508A (de)
GB (1) GB667582A (de)
NL (1) NL73740C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716049A (en) * 1951-11-01 1955-08-23 Du Pont Water-soluble yarn
US2977183A (en) * 1951-12-19 1961-03-28 Air Reduction Process of improving the dyeing properties of polyvinyl alcohol fibers
US2994576A (en) * 1954-09-09 1961-08-01 Celanese Corp Process for spinning polyvinyl alcohol filaments and remaining impurities therefrom
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929146A (ja) * 1982-08-09 1984-02-16 Kuraray Co Ltd 水硬性押出成形品の製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257382A (en) * 1939-09-01 1941-09-30 Warp Compressing Machine Compa Yarn delivery arrangement for creels
US2388325A (en) * 1944-03-04 1945-11-06 Du Pont Spinning process for artificial filaments

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257382A (en) * 1939-09-01 1941-09-30 Warp Compressing Machine Compa Yarn delivery arrangement for creels
US2388325A (en) * 1944-03-04 1945-11-06 Du Pont Spinning process for artificial filaments

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716049A (en) * 1951-11-01 1955-08-23 Du Pont Water-soluble yarn
US2977183A (en) * 1951-12-19 1961-03-28 Air Reduction Process of improving the dyeing properties of polyvinyl alcohol fibers
US2994576A (en) * 1954-09-09 1961-08-01 Celanese Corp Process for spinning polyvinyl alcohol filaments and remaining impurities therefrom
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments

Also Published As

Publication number Publication date
FR983508A (fr) 1951-06-25
CH284045A (fr) 1952-07-15
NL73740C (de)
DE825581C (de) 1951-12-20
GB667582A (en) 1952-03-05
BE492120A (de)

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