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GB181067A - Improvements in tanning - Google Patents

Improvements in tanning

Info

Publication number
GB181067A
GB181067A GB622121A GB622121A GB181067A GB 181067 A GB181067 A GB 181067A GB 622121 A GB622121 A GB 622121A GB 622121 A GB622121 A GB 622121A GB 181067 A GB181067 A GB 181067A
Authority
GB
United Kingdom
Prior art keywords
liquor
chrome
barkometer
vegetable
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
GB622121A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB622121A priority Critical patent/GB181067A/en
Publication of GB181067A publication Critical patent/GB181067A/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
    • C14C3/28—Multi-step processes

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

181,067. Carmichael, T. B., and Ockleston, W. H. Feb. 24, 1921. Combination tanning processes; chrome tanning.-Hides are tanned by a combination process which consists in treating the limed hides after washing either successively or simultaneously with an acidified green chrome liquor and a vegetable tanning-liquor. When the solutions are used simultaneously, the hides may be further treated with a vegetable liquor or with a series thereof in increasing strengths. The chrome liquor is prepared by dissolving green chrome salts in water to make a solution of 20‹ Barkometer, to which is added sufficient acetic acid to render 20 c.c. of saturated lime-water necessary to neutralize 10 c.c. of the liquor. After treatment in the chrome liquor, the hides are drained and then placed in a vegetable tan liquor of about 80‹ Barkometer or in a floating drum immersed in a vegetable liquor of 80‹-90‹ Barkometer, and finally in a liquor of 150‹ Barkometer at a temperature of 100‹-120‹ F. In the combined bath equal proportions of the acidified chrome liquor and a vegetable liquor of 30‹-40‹ Barkometer are used. According to the Provisional Specification, the chrome liquor is acidified with sodium bisulphite.
GB622121A 1921-02-24 1921-02-24 Improvements in tanning Expired GB181067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB622121A GB181067A (en) 1921-02-24 1921-02-24 Improvements in tanning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB622121A GB181067A (en) 1921-02-24 1921-02-24 Improvements in tanning

Publications (1)

Publication Number Publication Date
GB181067A true GB181067A (en) 1922-05-24

Family

ID=9810603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB622121A Expired GB181067A (en) 1921-02-24 1921-02-24 Improvements in tanning

Country Status (1)

Country Link
GB (1) GB181067A (en)

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