US2565908A - Method of insolubilizing artificial filaments of vegetable protein - Google Patents

Method of insolubilizing artificial filaments of vegetable protein Download PDF

Info

Publication number
US2565908A
US2565908A US41126A US4112648A US2565908A US 2565908 A US2565908 A US 2565908A US 41126 A US41126 A US 41126A US 4112648 A US4112648 A US 4112648A US 2565908 A US2565908 A US 2565908A
Authority
US
United States
Prior art keywords
sulphate
temperature
saturated
solution
tow
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
US41126A
Other languages
English (en)
Inventor
Campbell Ray
William E Tetlow
Robin H K Thomson
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
Original Assignee
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
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of US2565908A publication Critical patent/US2565908A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube

Definitions

  • the present invention relates to a. new or improved method for insolubilising artificial filaments, threads, fibres and the like filamentary products spun from protein solutions, and more particularly those obtained by the spinning of solutions of vegetable seed globulins, for instance peanut protein, or phospho-proteins, for instance casein, in aqueous alkaline or other suitable aqueous solvent media into suitable acidified saline coagulating baths.
  • Sodium sulphate solutions slightly acidified with sulphuric acid are in practice most advantageously used as the coagulating baths.
  • the filamentary products emerging from the coagulating bath are still easily soluble in dilute saline solutions. They can be rendered insoluble in dilute saline solutions and in cold water by a hardening treatment with formaldehyde, but in order to render the filamentary products capable of ordinary textile application they must be rendered capable of withstanding also the action of boiling water, so that they can be dried oif without sticking together, and further the action of hot dilute acid solutions such as are used in the application of acid wool dyes and of hot dilute alkaline solutions such as are used in laundering.
  • the strongly acidified formaldehyde bath of pH 4 to 6 is preferably saturated with sodium sulphate, while if the formaldehyde bath of pH 4 to 6 is saturated to both sodium chloride and magnesium sulphate then the strongly acidified formaldehyde bath is preferably saturated with magnesium sulphate.
  • the temperature of the first bath is 50 C. a period of about five minutes is sufficient and that if the temperature is about 40 C. 8 minutes to 15 minutes are required. It is also stated that if the temperature of the second bath is about C. the time required for treatment is usually about 10 to 15 minutes.
  • the object of the present invention is to provide a simple and efiicient method of insolubilising a continuous travelling tow of unhardened protein artificial filamentary material.
  • the method of insolubilising artificial filamentary products obtained by the spinning of solution of vegetable seed globulins, for instance, peanut proteins, or phospho-protein, for instance, casein in aqueous alkaline or other aqueous solvent media into acidified saline coagulating baths comprises passing the filamentary products and an aqueous formaldehyde solution saturated to sodium chloride and containing sodium sulphate or magnesium sulphate at a pH of 4 to 6 and at a temperature preferably in the neighbourhood of about 70 C.
  • a tubular passage preferably anranged as a coil of helical form and thereafter passing the thus treated filamentary product and an aqueous formaldehyde solution strongly acidified with sulphuric acid and saturated with sodium sulphate or magnesium sulphate at the temperature employed, the said strongly acidified formaldehyde solution being at raised temperature preferably in the neighbourhood of about 95 0., through another tubular passage preferably arranged as a coil of helicalform.
  • the tubular passage is preferably likewise of narrow diameterrand if it is straight the treating liquid is passed therethrough preferably under such conditions as to be in turbulent flow.
  • the treating liquid is always to flow through the tubular passage at least at such speed as to advance the filamentary products through the said passage.
  • the tubular passag .can .be completely immersed in a bath of water of such temperature as to maintain the liquor circulating in the pas-- sage at the stated temperature and so prevent cooling and consequent crystallisation of salts whichmight result in damage to the fibre.
  • the tow-of filaments is preferably carried into the tubular passage by having a funnel fitted on tothe entrance to the passage. liquor is directed into this funnel, flowing by gravity through the said tubular passage.
  • the flow 'of liquor from the funnel-to the tubular passage provides the necessary impetus to take the tow .of filaments into the tubular passage. It has been found advantageous to fit an overflow pipe from the funnel to the treating liquor-circulating tank in order to maintain steady flow conditions in the tubular passage.
  • Example A maturedcaustic soda solution of groundnut globulin prepared from a solution containing 25 parts peanut globulin, 1.25 parts .sodium hydroxide, 1.0 part sodium sulphiteand 172.75 parts water is extruded through a spinneret 'i into a coagulating bathi containing'ZGO gm./l.sodium sulphate and gm./l. sulphuric acid.
  • the resulting tow of filaments 3 is taken up on godets 4 having .a peripheral speed of 30 :metres per minute r and stretched 2 by passing 1 on "to. godets .;5
  • the treating havin a peripheral speed or metres per minute.
  • the tow 3 is then led under tension to a godet 6 situated .vertically above the centre line of the trough of a ,ring trough i in accordance with the method claimed in co-pending U. S. application Serial No. 2,246, filed January 14, 1948, now Patent No. 2,555,065, through a reciprocating spacing device .8 at least 3 feet above the surface of the liquor in the trough and so into the trough in which the fibre is deposited in a zig-zag manner.
  • This ring-trough consists of a solid centre section 2 feet in diameter with a trough 0.5 foot wide and 4 inches deep outside but integrally joined to it and is made of mild steel.
  • the ring trough contains abase of wire gauze 9 and revolves in a circular trough i0, 3 feet 4 inches external diameter, 1 foot 7 /2 inches internal diameter and 6" deep, also of mild steel, fitted with an adjustable weir so that the height of liquor in the trough maybe varied at will.
  • the ring-trough contains a saturated solution of sodium chloride at a temperature of 20 C. and at a pH M50.
  • the tow 3 sinks on to the base of the trough i and is carried round with the trough I which revolves one in 4% minutes.
  • the time of immersion of the tow 3 in the acidified saturated sodium chloride solution is 4 ,42 minutes.
  • the tow 3 is taken up vnot less than 3 from the fibre inlet and then stretched between two .godets ll and I2 whose peripheral speeds are 35 and 52 metres per minute respectively.
  • the tow 3 passes over a godet l3 placed vertically above the centre line of the entry id of a vertically positioned helical coil J5 of -120 .feet in length and of 4 feet diameter. Through this coil there passes a solution saturated yvith respect to sodium chloride at 770 and containing 20 grams of sodium sulphate per litre sand 2% of formaldehyde. The temperature of this solution is Caand the pH 5.0. The time of passage of ⁇ the tow 3 through gthis coil is ⁇ /2 to 1 .minute. The tow 3 is .picked up over ars det i6 arranged vertically above the exit of the vertically positioned coil.
  • the tow 3 is stretched between two godets H, 18 whose peripheral speeds are '40 and +15 metres/minute.
  • the tow ,3 then enters .th oughentry i9 another vertically .positioned coil '20 of length 150 feet and of diameter 4 feet through which flows a treating liquor consisting of saturated sodium sulphate at C., 275 gramsperlitre sulphuric acid and 2% formaldehyde.
  • the temperature of this liquor is 95 and the pH is less than 0.
  • the time of passage of the tow through thiscoil 20 is 12 minutes.
  • On leaving .the outlet-of this second coil 20 the tow 3 .is'taken up over a godet 2! and washed and. dried by .any known method.
  • a method for reducing the time of treatmentrequired for insolubilizing artificial filamenta-ry products obtained by spinning aqueous solutions of proteins selected from the group consisting of .vegetableseed globulins and phosphoproteins into acidified saline coagulating baths which comprises passing the -coagulated filamentary products through a confined areaand in direct contact with a stream of an aqueous formaldehyde solutionhaving a temperature of from :aboutfiil" .Cxto 70 C.
  • a method for reducing the time 'of treatment required'for insolubilizing a continuous tow of artificial filamentary products obtained by spinning aqueous solutions of proteins selected from the group consisting of vegetable seed globulins and phospho-proteins into acidified saline coagulating baths which comprises passing said tow in an' untensioned condition through a confined area for from about to 1 minute and in direct contact with a stream of an aqueous formaldehyde solution at a temperature of from about 60 C. to 70 C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Peptides Or Proteins (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
US41126A 1947-10-06 1948-07-28 Method of insolubilizing artificial filaments of vegetable protein Expired - Lifetime US2565908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB276372X 1947-10-06

Publications (1)

Publication Number Publication Date
US2565908A true US2565908A (en) 1951-08-28

Family

ID=10262835

Family Applications (1)

Application Number Title Priority Date Filing Date
US41126A Expired - Lifetime US2565908A (en) 1947-10-06 1948-07-28 Method of insolubilizing artificial filaments of vegetable protein

Country Status (7)

Country Link
US (1) US2565908A (en, 2012)
BE (1) BE485166A (en, 2012)
CH (1) CH276372A (en, 2012)
DE (1) DE848847C (en, 2012)
FR (1) FR970037A (en, 2012)
GB (1) GB637025A (en, 2012)
NL (1) NL68974C (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665966A (en) * 1950-08-28 1954-01-12 Ici Ltd Method for insolubilizing spun protein filamentary products
FR2404406A1 (fr) * 1977-09-30 1979-04-27 Kuraray Co Produit proteique fibreux derivant du lait et son procede de preparation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB543586A (en) * 1940-08-29 1942-03-04 David Traill Improvements in or relating to the manufacture of filaments from vegetable globulin
US2372622A (en) * 1943-01-28 1945-03-27 Courtaulds Ltd Manufacture and production of artificial threads, filaments, and the like
US2409475A (en) * 1944-01-11 1946-10-15 Du Pont Shaped protein structures and their preparation
US2428603A (en) * 1941-10-29 1947-10-07 Nat Dairy Prod Corp Process for hardening protein fibre
US2429214A (en) * 1944-01-11 1947-10-21 Du Pont Shaped protein structures and their preparation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB543586A (en) * 1940-08-29 1942-03-04 David Traill Improvements in or relating to the manufacture of filaments from vegetable globulin
US2428603A (en) * 1941-10-29 1947-10-07 Nat Dairy Prod Corp Process for hardening protein fibre
US2372622A (en) * 1943-01-28 1945-03-27 Courtaulds Ltd Manufacture and production of artificial threads, filaments, and the like
US2409475A (en) * 1944-01-11 1946-10-15 Du Pont Shaped protein structures and their preparation
US2429214A (en) * 1944-01-11 1947-10-21 Du Pont Shaped protein structures and their preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665966A (en) * 1950-08-28 1954-01-12 Ici Ltd Method for insolubilizing spun protein filamentary products
FR2404406A1 (fr) * 1977-09-30 1979-04-27 Kuraray Co Produit proteique fibreux derivant du lait et son procede de preparation

Also Published As

Publication number Publication date
CH276372A (de) 1951-07-15
FR970037A (en, 2012) 1950-12-28
NL68974C (en, 2012)
DE848847C (de) 1952-09-08
BE485166A (en, 2012)
GB637025A (en) 1950-05-10

Similar Documents

Publication Publication Date Title
US2642333A (en) Method of spinning polyvinyl alcohol fibers
US2324397A (en) Method for production of continuous structures
GB743761A (en) Improvements in or relating to method of producing fibers, threads, yarns, tows and the like
US2308576A (en) Method for the manufacture of artificial fibers and staple fiber yarns
CN105420827B (zh) 一种竖式湿法纺丝的方法及装置
US2565908A (en) Method of insolubilizing artificial filaments of vegetable protein
US2533103A (en) Apparatus for the liquid treatment of threads
US3049755A (en) Process and apparatus for stretch spinning cuprammonium rayon
US2565935A (en) Method for insolubilizing vegetable seed globulin and phospho-protein artificial filamentary products
US2555065A (en) Method of treating a tow of filaments or threads
US3279225A (en) Apparatus for wet spinning
GB661098A (en) Method and apparatus for wet spinning artificial filaments
GB554689A (en) Improvements in or relating to the manufacture of regenerated cellulose yarns, filaments, films and the like
US3846532A (en) Continuous spinning and stretching process of the production of polyamide-6 filaments
GB443971A (en) Process for spinning viscose
US2700794A (en) Wet-spinning cells
GB1268302A (en) Process for the manufacture of crimped filaments of synthetic linear polyamides or copolyamides
JPS6119805A (ja) 高速度湿式紡糸方法およびその装置
US3032385A (en) Process of wet spinning polyvinyl alcohol
US2665966A (en) Method for insolubilizing spun protein filamentary products
US2705183A (en) Viscose spinning process
US2078339A (en) Manufacture of artificial silk
US4224271A (en) Process for biconstituent polymer compositions
US2731667A (en) Wet spinning apparatus
US1997930A (en) Process of and apparatus for the spinning of cuprammonium filaments