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
GB39378/60A
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.)
Ledoga SpA
Original Assignee
Ledoga SpA
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 Ledoga SpAfiledCriticalLedoga SpA
Publication of GB893227ApublicationCriticalpatent/GB893227A/en
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
893,227. Tanning. LEDOGA S.p.A. Nov. 16, 1960 [Nov. 26, 1959], No. 39378/60. Class 76. A non-delimed pelt is soaked in a dilute aqueous solution containing an alkali-metal nitrite, acidified by adding aqueous solution of pH 4.5 to 6.5 and tanned in a concentrated solution of a vegetable tanning agent such as chestnut extract. The tanning agent can be the source of acid. The grain of the pelt may be previously fixed with small amounts of aldehydes.
GB39378/60A1959-11-261960-11-16A process for very rapid vegetable tanning of sole leather
ExpiredGB893227A
(en)
Procedure for the obtaining of the tannin content of the manter coil for conversion in discolored curtient extracts (Machine-translation by Google Translate, not legally binding)