GB580498A - Improvements in the manufacture of artificial filaments - Google Patents

Improvements in the manufacture of artificial filaments

Info

Publication number
GB580498A
GB580498A GB5823/44A GB582344A GB580498A GB 580498 A GB580498 A GB 580498A GB 5823/44 A GB5823/44 A GB 5823/44A GB 582344 A GB582344 A GB 582344A GB 580498 A GB580498 A GB 580498A
Authority
GB
United Kingdom
Prior art keywords
per cent
mixture
softening agent
acetone
stretched
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
GB5823/44A
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 GB5823/44A priority Critical patent/GB580498A/en
Priority to US583840A priority patent/US2473615A/en
Publication of GB580498A publication Critical patent/GB580498A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Artificial Filaments (AREA)

Abstract

Artificial filaments having a basis of an organic derivative of cellulose are stretched by at least 100 per cent of their original length with the aid of a softening agent comprising an active substance in a concentration between that which dissolves the materials or destroys their structure and about 2 per cent by volume below such concentration, the softening agent being employed under such conditions as to give slip stretch as defined below. Alternatively, the filaments are stretched by at least 100 per cent of their original length with the aid of a softening agent containing an active substance in such concentration that the stretching tension required is between 0.1 and 0.5 grams per 100 denier, under such conditions that slip stretch is obtained. Slip stretch denotes stretch by which the extension of the yarn is not reduced by more than 25 per cent on stretching the yarn by at least 100 per cent of its original length. Suitable softening agents for filaments made from cellulose acetate are a mixture of acetone and benzene containing 37 to 41 per cent of acetone at 20-25 DEG C., a 90/10 ethyl acetate-toluene mixture at 30 DEG C., and a 95/5 ethyl acetate-carbon tetrachloride mixture at 30 DEG C. In general, the materials are preferably treated with a mixture of a hydrophile organic softening liquid and an inert hydrophobe organic liquid. The materials may be pretreated with a softening agent containing a slightly lower concentration of softening liquid or with a softening agent used at a slightly lower temperature. In example (1), yarn made of acetone-soluble cellulose acetate of 54 per cent acetyl value and having an extensibility of about 25 per cent is immersed in a mixture of 90 per cent ethyl acetate and 10 per cent toluene at 30 DEG C. for 30 seconds. It is then stretched 100 per cent of its original length, rinsed with toluene and allowed to dry without tension. In example (2), the softening agent consists of 95 per cent ethyl acetate and 5 per cent carbon tetrachloride at 30 DEG C. In example (3), a similar yarn is stretched while passing through a mixture of 41 per cent acetone and 59 per cent benzene at 20 DEG C., and the rate of travel is adjusted so that the stretching tension is about 0.3 grams per 100 denier. Specifications 421,614 and 570,588 are referred to.
GB5823/44A 1944-03-29 1944-03-29 Improvements in the manufacture of artificial filaments Expired GB580498A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5823/44A GB580498A (en) 1944-03-29 1944-03-29 Improvements in the manufacture of artificial filaments
US583840A US2473615A (en) 1944-03-29 1945-03-20 Process for stretching cellulose acetate filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5823/44A GB580498A (en) 1944-03-29 1944-03-29 Improvements in the manufacture of artificial filaments

Publications (1)

Publication Number Publication Date
GB580498A true GB580498A (en) 1946-09-10

Family

ID=9803263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5823/44A Expired GB580498A (en) 1944-03-29 1944-03-29 Improvements in the manufacture of artificial filaments

Country Status (2)

Country Link
US (1) US2473615A (en)
GB (1) GB580498A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012396A (en) * 1955-07-05 1961-12-12 Celanese Corp Process for producing voluminous yarn

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB323790A (en) * 1928-07-27 1930-01-16 Henry Dreyfus Improvements in the manufacture or treatment of threads or filaments of organic cellulose derivatives
US2047195A (en) * 1928-11-09 1936-07-14 Dreyfus Henry Treatment of cellulose derivatives
FR717452A (en) * 1930-07-30 1932-01-09 Improvements in the manufacture and treatment of textiles or other materials
GB385985A (en) * 1931-06-04 1933-01-04 Henry Dreyfus Improvements in the manufacture of treatment of yarns containing artificial filaments
GB389823A (en) * 1931-06-18 1933-03-20 British Celanese Improvements in the treatment of artificial filaments and like products
US2066492A (en) * 1932-07-04 1937-01-05 Celanese Corp Production or treatment of artificial filaments or the like
GB423168A (en) * 1933-06-23 1935-01-23 Henry Dreyfus Improvements in the manufacture of treatment of artificial filaments, threads, yarns, ribbons and like materials
US2051831A (en) * 1933-09-07 1936-08-25 Dreyfus Henry Manufacture of artificial silk and like products
GB450936A (en) * 1935-01-23 1936-07-23 Henry Dreyfus Improvements relating to the manufacture or treatment of artificial filaments, threads, films and like materials
US2112237A (en) * 1935-04-03 1938-03-29 Dreyfus Henry Treatment of artificial filaments, yarns, foils, films and the like containing organic derivatives of cellulose
CA393600A (en) * 1937-05-19 1940-12-31 Jacque Heinrich Thermoplastic, film-forming and organic substance processing
GB534775A (en) * 1939-09-15 1941-03-18 Percy Frederick Combe Sowter Improvements in or relating to the treatment of artificial textile materials

Also Published As

Publication number Publication date
US2473615A (en) 1949-06-21

Similar Documents

Publication Publication Date Title
GB580498A (en) Improvements in the manufacture of artificial filaments
GB1264763A (en) Improvements in or relating to the production of carbon fibres
US2081173A (en) Manufacture or treatment of artificial materials
US2282415A (en) Treatment of artificial materials
GB517689A (en) Process for improving the stability to heat of shaped polyvinyl chloride and the like
US2375864A (en) Treatment of cellulose organic ester yarns
US2092007A (en) Treatment or manufacture of cellulose ester material
GB323790A (en) Improvements in the manufacture or treatment of threads or filaments of organic cellulose derivatives
FR82847E (en) Process for the preparation and chemical degumming of retted flax, with or without terminal bleaching, in order to make it easily spinnable on cotton, wool, schappiste and dry flax materials
US1425581A (en) Process of preparing cellulose butyrate
GB892589A (en) Manufacture of a 12-hydroxy-steroid
US1395191A (en) Process for making the coloring of natural horn water-resisting
GB423168A (en) Improvements in the manufacture of treatment of artificial filaments, threads, yarns, ribbons and like materials
GB825032A (en) Solutions of polyvinyl chloride
GB312197A (en) Treatment of artificial fibrous material
GB915623A (en) Artificial filamentary material
US2052974A (en) Manufacture of artificial thread
US936177A (en) Manufacture of incandescent gas-mantles.
US2326842A (en) Treatment of artificial materials
SU144446A1 (en) The method of processing fibers from polyvinyl alcohol
US2387168A (en) Treatment of cellulose derivative articles
GB313981A (en) Improvements in or relating to artificial silk
GB778201A (en) Process for producing water-insoluble threads of polyvinyl alcohol
GB323548A (en) Process for the preparation of effect threads
GB732117A (en) Improvements in the manufacture of solutions of polyacrylonitrile