US2506252A - Process of increasing the strength of insolubilized artificial protein filaments - Google Patents

Process of increasing the strength of insolubilized artificial protein filaments Download PDF

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Publication number
US2506252A
US2506252A US607271A US60727145A US2506252A US 2506252 A US2506252 A US 2506252A US 607271 A US607271 A US 607271A US 60727145 A US60727145 A US 60727145A US 2506252 A US2506252 A US 2506252A
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US
United States
Prior art keywords
filaments
insolubilized
strength
formaldehyde
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
US607271A
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English (en)
Inventor
Robin H K Thomson
Traill David
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.)
Imperial Chemical Industries Ltd
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Imperial Chemical Industries 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
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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
    • D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof

Definitions

  • the present invention relates to the production of improved artificial insolubilised protein filaments of the kind wherein the insolubilisation of the coagulated filaments obtained by wet spinning is carried out by means of formalif the treatment is carried on for half an hour to dehyde in the presence of a strongly acidified three quarters of an hour, and there is no adsaline solution. vantage in prolonging the treatment unduly.
  • the invention is especially applicable to insolu- Depending on the alkalinity (pH) at which the bilised filaments produced from alkaline solutreatment is carried out there may be used mild tions of casein and alkaline solutions of vegeor strong alkalies or buffered strong alkalies.
  • ta-ble'globulins for instance, peanut globulin solu-
  • the invention isillustrated by the following tions or soya bean globulin solutions in dilute example: sodium hydroxide solution.
  • the invention has Example for an object to increase the strength of the insolubfli ed protein filaments
  • the insolubilisation of the coagulated wet spun is p o a c agulating bath consisting of an protein filaments can be most efiectively or conaqueous Solution containing phuric acid veniently carried out by means of formaldehyde and sodium sulphate at 30 C.
  • the filaments in the re ul ment in the strength of the filaments obtained staple fibr hav an avera str n th of 7.7 from coagulated protein filaments that have kilogram p r square llimetre as measured on been insolubilised with formaldehyde in presthe Cliii au ogr phio recorder.
  • the method for the production of improved artihydroxide to give the solution a pH of 9.6 as flcial insolubilised protein filaments of the kind measured on an electromatic pH meter and is herein defined comprises treating the insolubil- 5Q allowed to remain for 40 minutes in the soluised filaments with a strong aqueous formaldetion.
  • the staple fibre is then removed and is hyde solution havingapI-I between approximately thoroughly washed with water and dried at 8.6 and 10.4, preferably between 9.0 and 10.0.
  • filaments which comprises insolubilizin-g coagulated protein filaments by treatment with an acidic saline solution of formaldehyde, washing the insolubilized filaments in order tofree them from adhering acid and salts and, thereafter, contacting the insolubilized filaments for. a time corresponding toabout 30 110 45 minutes at room temperature with a form-aldehydesolution of approximately 40% formaldehyde concentration having a pH between about 8.6 and'10.4.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Peptides Or Proteins (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Artificial Filaments (AREA)
US607271A 1944-09-06 1945-07-26 Process of increasing the strength of insolubilized artificial protein filaments Expired - Lifetime US2506252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17026/44A GB579588A (en) 1944-09-06 1944-09-06 Improvements in or relating to the production of artificial insolubilised wet-spun protein filaments

Publications (1)

Publication Number Publication Date
US2506252A true US2506252A (en) 1950-05-02

Family

ID=10087871

Family Applications (1)

Application Number Title Priority Date Filing Date
US607271A Expired - Lifetime US2506252A (en) 1944-09-06 1945-07-26 Process of increasing the strength of insolubilized artificial protein filaments

Country Status (3)

Country Link
US (1) US2506252A (fr)
GB (1) GB579588A (fr)
NL (1) NL60806C (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512640A (en) * 1937-04-27 1939-09-21 Ig Farbenindustrie Ag Improved process for hardening casein fibres
GB546978A (en) * 1941-02-06 1942-08-07 Courtaulds Ltd Improvements in and relating to the manufacture and production of artificial threads, filaments and the like
US2312998A (en) * 1938-03-01 1943-03-02 Kadt George Stephan De Process for hardening fibrous protein material
US2335576A (en) * 1938-05-05 1943-11-30 Borner Karl Treatment of casein fibers
US2340909A (en) * 1939-01-21 1944-02-08 Ici Ltd Manufacture of artificial fibers from protein material
US2347677A (en) * 1938-03-21 1944-05-02 Ici Ltd Film, filament, fiber, or other shaped article made by hardening proteins coagulatedfrom their solutions
US2358383A (en) * 1935-10-22 1944-09-19 Chibnall And William Thomas As Production of filamentary materials

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358383A (en) * 1935-10-22 1944-09-19 Chibnall And William Thomas As Production of filamentary materials
GB512640A (en) * 1937-04-27 1939-09-21 Ig Farbenindustrie Ag Improved process for hardening casein fibres
US2312998A (en) * 1938-03-01 1943-03-02 Kadt George Stephan De Process for hardening fibrous protein material
US2347677A (en) * 1938-03-21 1944-05-02 Ici Ltd Film, filament, fiber, or other shaped article made by hardening proteins coagulatedfrom their solutions
US2335576A (en) * 1938-05-05 1943-11-30 Borner Karl Treatment of casein fibers
US2340909A (en) * 1939-01-21 1944-02-08 Ici Ltd Manufacture of artificial fibers from protein material
GB546978A (en) * 1941-02-06 1942-08-07 Courtaulds Ltd Improvements in and relating to the manufacture and production of artificial threads, filaments and the like

Also Published As

Publication number Publication date
GB579588A (en) 1946-08-08
NL60806C (fr)

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