GB663032A - Improvements in or relating to collagen threads, filaments and the like and the manufacture thereof - Google Patents

Improvements in or relating to collagen threads, filaments and the like and the manufacture thereof

Info

Publication number
GB663032A
GB663032A GB9293/47A GB929347A GB663032A GB 663032 A GB663032 A GB 663032A GB 9293/47 A GB9293/47 A GB 9293/47A GB 929347 A GB929347 A GB 929347A GB 663032 A GB663032 A GB 663032A
Authority
GB
United Kingdom
Prior art keywords
per cent
tanning
strand
cr2o3
bath
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
GB9293/47A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB663032A publication Critical patent/GB663032A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

<PICT:0663032/IV (a)/1> A collagen strand is rendered suitable as a suture material by treatment with a dilute solution of a tanning agent, softening the resulting lightly-tanned strand with water or an aqueous acid solution, stretching the strand and setting the stretch by treating the stretched strand with a relatively more concentrated solution of a tanning agent and/or a coagulating agent. The tanning agent used in the second treatment may be the same as, or different from, that used in the first treatment. According to the example, a collagen solution of pH 2 to 4 is extruded through a spinerette 2 into a coagulating bath 3 containing at least 35 per cent ammonium sulphate at a pH 7.8, preferably in the presence of a lubricant, e.g. vegetable oil. The strands 4 are stretched over the godets 5, spooled on 6 and, if desired, set in the bath 9 containing at least 35 per cent aqueous ammonium sulphate. The set strands are pre-tanned for 24 hours in a bath 11 containing 0.05 per cent chromic sulphate (as Cr2O3) at pH 4.8, and at least 35 per cent ammonium sulphate, softened in water or dilute acid 12, stretched over godets 13, given a final tanning in a bath 14 containing 2.5 per cent Cr2O3 at pH 3.8 and 10 per cent sodium sulphate, washed in water 15, dried in chamber 16 at 60 DEG C. and finally wound on spool 19. Generally 0.01 to 0.50 per cent Cr2O3 may be used in the pre-tanning stage and 1.0 to 10 per cent Cr2O3 in the final tanning stage. While any conventional tanning agent may be used, formaldehyde, ferric and aluminium salts are preferred in addition to the chromium salts specified above. Organic coagulants such as water-soluble ketones, alcohols and ethers may be employed but inorganic coagulants such as sodium, magnesium and ammonium sulphates are preferred. Pre-tanning solutions are substantially saturated with respect to the coagulants but lower concentrations, e.g. 10 per cent by weight, may be used in the final tanning stage. 15 to 25 per cent, preferably 20 per cent, solutions of coagulants are employed in the softening stage. The strand may be formed by the extrusion of melted collagen.
GB9293/47A 1946-04-19 1947-04-08 Improvements in or relating to collagen threads, filaments and the like and the manufacture thereof Expired GB663032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US663599A US2475697A (en) 1946-04-19 1946-04-19 Treatment of collagen strands

Publications (1)

Publication Number Publication Date
GB663032A true GB663032A (en) 1951-12-12

Family

ID=24662516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9293/47A Expired GB663032A (en) 1946-04-19 1947-04-08 Improvements in or relating to collagen threads, filaments and the like and the manufacture thereof

Country Status (2)

Country Link
US (1) US2475697A (en)
GB (1) GB663032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120273993A1 (en) * 2009-11-24 2012-11-01 Collplant Ltd. Method of generating collagen fibers

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126433A (en) * 1964-03-24 Benzoic acid treatment of collagen
US2637321A (en) * 1944-03-20 1953-05-05 American Cyanamid Co Shaped article and method of producing it
GB652988A (en) * 1948-12-24 1951-05-02 Courtaulds Ltd Improvements in and relating to the production of artificial protein threads, filaments and the like
US2900644A (en) * 1955-11-01 1959-08-25 Johnson & Johnson Heterograft material
US3098696A (en) * 1959-08-18 1963-07-23 American Cyanamid Co Manufacture of sterile surgical suture collagen
US3034852A (en) * 1960-01-26 1962-05-15 Japan Leather Mfg Co Ltd Solubilization of insoluble collagen fibers and reconstitution thereof
NL283966A (en) * 1961-04-12
US3114591A (en) * 1961-04-12 1963-12-17 Ethicon Inc Process for the manufacture of suture material from animal tendons
US3114593A (en) * 1961-04-12 1963-12-17 Ethicon Inc Method of producing a collagen strand
US3435825A (en) * 1962-12-17 1969-04-01 Kendall & Co Plastic collagen sutures
US3166074A (en) * 1963-05-29 1965-01-19 Ethicon Inc Aldehyde, chrome and polyhydric alcohol tanned collagen articles and their production
US3166073A (en) * 1963-05-29 1965-01-19 Ethicon Inc Quinone, aldehyde and chrome tanned articles and their production
GB1147072A (en) * 1965-07-09 1969-04-02 Braun Internat Gmbh B Process for preparing a wound covering
US3483286A (en) * 1967-05-08 1969-12-09 American Cyanamid Co Method for tanning absorbable surgical sutures
US3625811A (en) * 1968-01-19 1971-12-07 Sato Hisao Method of preparing yarn and the like from animal hide
US5891167A (en) * 1996-06-19 1999-04-06 United States Surgical Corporation Collagen coated gut suture
US5954748A (en) * 1996-07-15 1999-09-21 United States Surgical Corporation Gelatin coated gut suture
US20100016890A1 (en) * 2008-07-17 2010-01-21 Steve Tsai Spool Dip And Overcoat Process For Medical Devices
US20100075020A1 (en) * 2008-09-25 2010-03-25 Tyco Healthcare Group Lp Methods for coating filaments

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE404337A (en) * 1933-02-11 1900-01-01
BE411245A (en) * 1934-09-19
US2046320A (en) * 1934-10-25 1936-07-07 Technicolor Motion Picture Method of making hardened gelatin films and resulting product
DE652322C (en) * 1935-04-25 1937-10-28 Freudenberg Carl Fa Process for ironing tight stitches of fibers or threads from animal skin or tendon collagen
US2338915A (en) * 1937-03-02 1944-01-11 Ferretti Antonio Manufacture of artificial textile fibers
NL60149C (en) * 1937-11-18
NL70666C (en) * 1938-10-13
BE448748A (en) * 1942-01-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120273993A1 (en) * 2009-11-24 2012-11-01 Collplant Ltd. Method of generating collagen fibers

Also Published As

Publication number Publication date
US2475697A (en) 1949-07-12

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