GB346836A - Improvements in the treatment of skins and pelts - Google Patents

Improvements in the treatment of skins and pelts

Info

Publication number
GB346836A
GB346836A GB1826/30A GB182630A GB346836A GB 346836 A GB346836 A GB 346836A GB 1826/30 A GB1826/30 A GB 1826/30A GB 182630 A GB182630 A GB 182630A GB 346836 A GB346836 A GB 346836A
Authority
GB
United Kingdom
Prior art keywords
sodium
hides
skins
treatment
enzymes
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
GB1826/30A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB346836A publication Critical patent/GB346836A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C1/00Chemical treatment prior to tanning
    • C14C1/08Deliming; Bating; Pickling; Degreasing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cosmetics (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

346,836. Preliminary treatment of hides and skins. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.-(I. G. Farbenindustrie Akt. Ges. ; Frankfort - on - Main, Germany.) Jan. 18, 1930, Nos. 1826 and 6106. [Class 76.] The epidermal layer is removed from hides and skins and they are simultaneously bated by treatment with baths or pastes comprising enzymes of carica papaya in the proportion of at least 0.5 per cent of the weight of the soaked hides. The materials are kept in a neutral or alkaline condition and activating agents or other enzymes may be added. As activating agents hydrocyanic acid or a cyanide and parachlor-meta cresol may be used. In the preparation of the bath to assist the action of the enzyme and to adjust the hydrogen ion concentration the following substances are employed according to examples, in various admixtures; sodium phosphates, potassium bromide, potassium and sodium nitrate, sodium sulphate, sodium chloride, ammonium chloride, sodium bicarbonate, sodium hydrate, ammonia, lime, formic acid, boric acid. For the purpose of making up a paste with a prepared solution levigated chalk may be used.
GB1826/30A 1929-09-12 1930-01-18 Improvements in the treatment of skins and pelts Expired GB346836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967679X 1929-09-12

Publications (1)

Publication Number Publication Date
GB346836A true GB346836A (en) 1931-04-20

Family

ID=7816617

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1826/30A Expired GB346836A (en) 1929-09-12 1930-01-18 Improvements in the treatment of skins and pelts

Country Status (3)

Country Link
US (1) US1967679A (en)
FR (1) FR702234A (en)
GB (1) GB346836A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767110C (en) * 1935-12-08 1952-12-22 Roehm & Haas G M B H Process for the production of bare with the use of fungal tryptases
DE888740C (en) * 1936-02-08 1953-09-03 Roehm & Haas G M B H Process for the depilation and simultaneous pickling of soaked, alkaline or non-alkaline pretreated skins with mold tryptase
DE1134474B (en) * 1955-03-30 1962-08-09 Roehm & Haas Gmbh Process for the production of tanned bare
DE977414C (en) * 1954-05-21 1966-05-26 Roehm & Haas G M B H Process for shearing fur and skins with proteolytic enzymes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896983C (en) * 1936-09-05 1953-11-16 Roehm & Haas G M B H Process for the depilation and simultaneous pickling of soaked, alkaline or non-alkaline pretreated skins and pelts with mold tryptase
US2525539A (en) * 1946-12-24 1950-10-10 Christopher Herbert Gibson Method for preserving hides and pelts
GB785112A (en) * 1953-02-26 1957-10-23 Donald Burton Improvements in the treatment of hides, skins and tanning liquors therefor
HU179848B (en) * 1980-03-31 1982-12-28 Ferenc Keskeny Process for recovering hair and leather from raw hide

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767110C (en) * 1935-12-08 1952-12-22 Roehm & Haas G M B H Process for the production of bare with the use of fungal tryptases
DE888740C (en) * 1936-02-08 1953-09-03 Roehm & Haas G M B H Process for the depilation and simultaneous pickling of soaked, alkaline or non-alkaline pretreated skins with mold tryptase
DE977414C (en) * 1954-05-21 1966-05-26 Roehm & Haas G M B H Process for shearing fur and skins with proteolytic enzymes
DE1134474B (en) * 1955-03-30 1962-08-09 Roehm & Haas Gmbh Process for the production of tanned bare

Also Published As

Publication number Publication date
FR702234A (en) 1931-04-02
US1967679A (en) 1934-07-24

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