GB566504A - Improvements in or relating to the production of cellulose derivative filaments, yarns and the like - Google Patents

Improvements in or relating to the production of cellulose derivative filaments, yarns and the like

Info

Publication number
GB566504A
GB566504A GB4797/43A GB479743A GB566504A GB 566504 A GB566504 A GB 566504A GB 4797/43 A GB4797/43 A GB 4797/43A GB 479743 A GB479743 A GB 479743A GB 566504 A GB566504 A GB 566504A
Authority
GB
United Kingdom
Prior art keywords
filaments
temperature
spinning
yarns
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
GB4797/43A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4797/43A priority Critical patent/GB566504A/en
Priority to US522968A priority patent/US2431435A/en
Publication of GB566504A publication Critical patent/GB566504A/en
Priority to ES177009A priority patent/ES177009A1/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
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Abstract

Artificial filaments suitable for the manufacture of staple fibres, yarns, fabrics and artificial wool are produced by extruding a solution having a viscosity not exceeding 50 secs. (determined by a falling-ball method) of an organic derivative of cellulose, e.g. esters or ethers, in a volatile solvent through a spinning jet into a cell through which a current of evaporative medium is passed, the spinning temperature being below the boiling point of the solvent. The process is particularly applicable to the manufacture of artificial wool of improved resistance to stretching, by subjecting the filaments produced as above to the action of a hot aqueous medium, e.g. a hot soap solution, wet steam, or hot water. Suitable cellulose derivatives are the acetate, propionate, butyrate, acetate-propionate, acetate-butyrate and the Provisional Specification refers to the use of cellulose ethers, such as ethyl and butyl cellulose. The evaporative medium is a countercurrent or co-current of air, the temperature of which is preferably below the spinning temperature, but may be higher. Expeditious setting of the filaments is accomplished by reducing the speed of spinning, or increasing the length of path of the filaments through the evaporative medium. In the latter case, the filaments may be passed through a second evaporative medium at a higher temperature than that of the primary medium. The filaments may be assembled into yarns, with or without twisting at the time of or after spinning, and the yarns are converted into artificial wool by subjecting them to a hot aqueous treatment in hank form. Staple fibres may be spun into yarn prior to or after treatment by the hot aqueous medium. In an example, a solution of cellulose acetate in acetone of viscosity 25 is spun at a temperature of 42 DEG C. into a current of air at 30-35 DEG C. The filaments are twisted and assembled into yarn, which is then treated for 4 hours at a temperature of 90-100 DEG C. with a 0.5 per cent soap solution, washed and dried. The yarn is finally given an additional twist. Specifications 424,880, 442,073 and 464,981, [all in Group IX], are referred to.
GB4797/43A 1943-03-24 1943-03-24 Improvements in or relating to the production of cellulose derivative filaments, yarns and the like Expired GB566504A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4797/43A GB566504A (en) 1943-03-24 1943-03-24 Improvements in or relating to the production of cellulose derivative filaments, yarns and the like
US522968A US2431435A (en) 1943-03-24 1944-02-18 Production of crinkled cellulose ester filaments
ES177009A ES177009A1 (en) 1943-03-24 1947-02-28 IMPROVEMENTS IN OR RELATING TO SYSTEMS TO GENERATE MODULATED ELECTRICAL IMPULSES IN TIME

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4797/43A GB566504A (en) 1943-03-24 1943-03-24 Improvements in or relating to the production of cellulose derivative filaments, yarns and the like

Publications (1)

Publication Number Publication Date
GB566504A true GB566504A (en) 1945-01-02

Family

ID=9783968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4797/43A Expired GB566504A (en) 1943-03-24 1943-03-24 Improvements in or relating to the production of cellulose derivative filaments, yarns and the like

Country Status (3)

Country Link
US (1) US2431435A (en)
ES (1) ES177009A1 (en)
GB (1) GB566504A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537312A (en) * 1948-03-17 1951-01-09 Du Pont High elongation yarn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554801A (en) * 1921-03-07 1925-09-22 American Cellulose And Chemica Manufacture and application of fibers and fabrics
US1930230A (en) * 1928-04-21 1933-10-10 Celanese Corp Process of producing cellulose acetate yarns and product thereof
US2072102A (en) * 1928-06-16 1937-03-02 Celanese Corp Spinning of artificial filaments
US1952877A (en) * 1929-11-19 1934-03-27 Ruth Aldo Co Inc Apparatus for making artificial silk
US2232012A (en) * 1936-10-09 1941-02-18 Celanese Corp Manufacture of sheet materials
NL52647C (en) * 1938-09-29

Also Published As

Publication number Publication date
US2431435A (en) 1947-11-25
ES177009A1 (en) 1947-04-16

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