GB442590A - Improvements in or relating to leather tanning processes - Google Patents

Improvements in or relating to leather tanning processes

Info

Publication number
GB442590A
GB442590A GB2241034A GB2241034A GB442590A GB 442590 A GB442590 A GB 442590A GB 2241034 A GB2241034 A GB 2241034A GB 2241034 A GB2241034 A GB 2241034A GB 442590 A GB442590 A GB 442590A
Authority
GB
United Kingdom
Prior art keywords
receptacle
last
values
tanning
hides
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
GB2241034A
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.)
JAMES THOMAS TERRELL
Forestal Land Timber and Railways Co Ltd
Original Assignee
JAMES THOMAS TERRELL
Forestal Land Timber and Railways Co 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 JAMES THOMAS TERRELL, Forestal Land Timber and Railways Co Ltd filed Critical JAMES THOMAS TERRELL
Priority to GB2241034A priority Critical patent/GB442590A/en
Publication of GB442590A publication Critical patent/GB442590A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/08—Chemical tanning by organic agents
    • C14C3/10—Vegetable tanning

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

442,590. Tanning. FORESTAL LAND, TIMBER & RAILWAYS CO., Ltd., Regis House, King William Street, London, FONTANA, A., 19, Gran via Layetana, Barcelona, Spain, PHILLIPS, R. O., 82, Chiltern Court, Baker Street, London, and TERRELL, J. T., 4, Crabtree Lane, Harpenden, Hertfordshire. Aug. 1, 1934, No. 22410. [Class 76] In tanning with vegetable extracts of an astringent character, such as quebracho, mimosa, and mangrove, the hides &c. are treated in a series of pits, drums, &c. containing liquors, the pH values of which decrease progressively from between about 6À0 and 8À0 in the first receptacle to less than 4À0 in the last, this successive variation being obtained by allowing the liquor to flow through in succession from the final receptacle to the first at a rate regulated with respect to the munber of receptacles and the quantity of hides being treated. The preferred pH values vary between 6À0-7À5 in the first receptacle and 2À8-3À3 in the last. The pH values are those given by the glass electrode on the actual liquors used which may vary in strength from 10‹ in the first up to 150‹ Barkometer in the last receptacle.
GB2241034A 1934-08-01 1934-08-01 Improvements in or relating to leather tanning processes Expired GB442590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2241034A GB442590A (en) 1934-08-01 1934-08-01 Improvements in or relating to leather tanning processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2241034A GB442590A (en) 1934-08-01 1934-08-01 Improvements in or relating to leather tanning processes

Publications (1)

Publication Number Publication Date
GB442590A true GB442590A (en) 1936-02-03

Family

ID=10178916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2241034A Expired GB442590A (en) 1934-08-01 1934-08-01 Improvements in or relating to leather tanning processes

Country Status (1)

Country Link
GB (1) GB442590A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804367A (en) * 1954-10-05 1957-08-27 Raymond L Moore Method of vegetable tanning completely delimed hides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804367A (en) * 1954-10-05 1957-08-27 Raymond L Moore Method of vegetable tanning completely delimed hides

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