GB525738A - Improvements in or relating to the manufacture of artificial threads strips or bandsfrom protein solutions - Google Patents

Improvements in or relating to the manufacture of artificial threads strips or bandsfrom protein solutions

Info

Publication number
GB525738A
GB525738A GB6462/39A GB646239A GB525738A GB 525738 A GB525738 A GB 525738A GB 6462/39 A GB6462/39 A GB 6462/39A GB 646239 A GB646239 A GB 646239A GB 525738 A GB525738 A GB 525738A
Authority
GB
United Kingdom
Prior art keywords
solution
thread
sulphate
bath
stretching
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
GB6462/39A
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.)
Onderzoekings Instituut Research
Original Assignee
Onderzoekings Instituut Research
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 Onderzoekings Instituut Research filed Critical Onderzoekings Instituut Research
Publication of GB525738A publication Critical patent/GB525738A/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
    • D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)

Abstract

525,738. Artificial filaments &c. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Feb. 27, 1939, No. 6462. Convention date, March 29, 1938. [Class 2 (ii)] Artificial threads, strips, or bands are produced from an alkaline protein solution by extruding the solution into an acid spinning bath, and the freshly formed threads or other products are subjected to a continuous operation comprising a treatment with one or more hot salt solutions and a stretching by means of driven rollers or godets, the peripheral 'speed of each roller being greater than that of the preceding roller in the series. Stretching of the thread takes place while it is in contact with the hot salt solution. The thread is subsequently hardened with formaldehyde while it is in an untensioned state. When more than one salt solution is used these may be of different concentrations and at different temperatures. Salt solutions used include sodium sulphate, magnesium sulphate, zinc sulphate, aluminium sulphate, and sodium acetate. The thread may be cut to staple fibres before the formaldehyde treatment. In an example, a solution of casein in caustic soda solution is spun into a warm bath of dilute sulphuric acid, magnesium sulphate and sodium sulphate. The thread obtained is passed over a series of rollers rotating at increasing peripheral speeds, each roller being immersed in a hot solution of sodium sulphate. The thread is cut to staple fibre and treated with formaldehyde. If the temperature of the salt bath is sufficiently high the thread becomes stabilized so that it does not shrink during the subsequent hardening process. If the temperature of the salt bath. is below 80‹C., the bundle of filaments may be stabilized by passing it after the stretching treatment through another bath by means of rollers having the same speed as the last of the stretching rollers.
GB6462/39A 1938-03-29 1939-02-27 Improvements in or relating to the manufacture of artificial threads strips or bandsfrom protein solutions Expired GB525738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE525738X 1938-03-29

Publications (1)

Publication Number Publication Date
GB525738A true GB525738A (en) 1940-09-03

Family

ID=6552710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6462/39A Expired GB525738A (en) 1938-03-29 1939-02-27 Improvements in or relating to the manufacture of artificial threads strips or bandsfrom protein solutions

Country Status (4)

Country Link
BE (2) BE432810A (en)
FR (2) FR850455A (en)
GB (1) GB525738A (en)
NL (1) NL91951B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533297A (en) * 1945-08-22 1950-12-12 Ici Ltd Production of insolubilized protein artificial filamentary products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533297A (en) * 1945-08-22 1950-12-12 Ici Ltd Production of insolubilized protein artificial filamentary products

Also Published As

Publication number Publication date
BE448549A (en) 1943-01-30
FR52648E (en) 1945-05-02
BE432810A (en) 1939-03-31
NL91951B (en) 1951-12-15
FR850455A (en) 1939-12-18

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