DE432687C - Process for tanning animal skins - Google Patents

Process for tanning animal skins

Info

Publication number
DE432687C
DE432687C DEB115726D DEB0115726D DE432687C DE 432687 C DE432687 C DE 432687C DE B115726 D DEB115726 D DE B115726D DE B0115726 D DEB0115726 D DE B0115726D DE 432687 C DE432687 C DE 432687C
Authority
DE
Germany
Prior art keywords
tanning
animal skins
tanning animal
substances
vegetable
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
DEB115726D
Other languages
German (de)
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.)
JG Farbenindustrie AG
Original Assignee
JG 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
Priority to DEB114094D priority Critical patent/DE420648C/en
Application filed by JG Farbenindustrie AG filed Critical JG Farbenindustrie AG
Priority to DEB115726D priority patent/DE432687C/en
Application granted granted Critical
Publication of DE432687C publication Critical patent/DE432687C/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
    • 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

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)

Description

Verfahren zum Gerben tierischer Häute. Durch Patent 42o6¢8 ist ein Verfahren zum Gerben tierischer Häute geschützt, tvonach man die Hautblößen gleichzeitig oder nacheinander mit Lösungen der durch Behandlung von fossilen Stoffen pflanzlicher Herkunft, wie Braunkohle, Torf oder Steinkohle, mit Oxdydationsmitteln, wie Salpetersäure oder nitrosen Gasen, erhältlichen Gerbmitteln und Quebrachoextrakt oder anderen Brenzcatechingerbstoffen, wie Fichtenrindenextrakt, behandelt.Process for tanning animal hides. By patent 42o6 ¢ 8 is a Process for tanning animal skins protected, tvonach the skin pelts at the same time or successively with solutions of the treatment of fossil substances of vegetable origin Origin, such as lignite, peat or hard coal, with oxidizing agents such as nitric acid or nitrous gases, available tanning agents and quebracho extract or others Catechin tannins, such as spruce bark extract, treated.

Es wurde nun gefunden, daß man ähnlich wertvolle Leder von heller Farbe erhält, wenn man statt der aus fossilen Stoffen pflanzlicher Herkunft erzeugten Gerbmittel solche Produkte benutzt, die man durch Einwirkung von Oxydationsmitteln, wie Salpetersäure oder nitrosen Gasen, auf nichtfossile,-verkohlte pflanzliche Stoffe, wie Holzkohle, erhält, und diese zusammen. mit Naturgerbstoffen beliebiger Art zum Gerben verwendet, beispielsweise zusammen mit Quebracho-, Fichtenrindenextrakt, Eichenrindenextrakt u. dgl.It has now been found that leather of lighter color can be obtained from similarly valuable leather Color is obtained when instead of those made from fossil materials of vegetable origin Tanning agents use those products that are produced by the action of oxidizing agents, such as nitric acid or nitrous gases, on non-fossil, charred vegetable substances, like charcoal, gets, and these together. with natural tanning agents of any kind for Tanning used, for example together with quebracho, spruce bark extract, Oak bark extract and the like

B e i s p i e 1. zo Gewichtsteile einer 2oprozentigen Lösung des durch Oxydation von Holzkohle mittels Salpetersäure erhaltenen Gerbstoffes werden mit 8 Gewichtsteilen sulfitiertem Quebrachoextrakt von 2o° B6 gemischt. Diese Gerbextraktmischung wird mit 82 Gewichtsteilen Wasser verdünnt, worauf in die so erhaltene Gerbbrühe 6 bis 7 Gewichtsteile entkälkte Blöße eingelegt und in etwa 8 bis 12 Tagen ausgegerbt wird. Das in der üblichen Weise zugerichtete Leder ist von hellbrauner Farbe und besitzt gute Fülle.B e i s p i e 1. zo parts by weight of a 2% solution of the through Oxidation of charcoal by means of nitric acid are obtained with the tanning agent 8 parts by weight of sulfited quebracho extract of 20 ° B6 mixed. This tanning extract mixture is diluted with 82 parts by weight of water, whereupon into the resulting tanning liquor 6 to 7 parts by weight of decalcified pelt are inserted and tanned in about 8 to 12 days will. The leather, trimmed in the usual way, is light brown in color and has good abundance.

Claims (1)

PATENTANSPRUCH: Abänderung des durch Patent 42o648 geschützten Verfahrens zum Gerben tierischer Häute, dadurch gekennzeichnet, daß man hier an Stelle der aus fossilen Stoffen durch Oxydation hergestellten Gerbstoffe Produkte, die durch Einwirkung von Oxydationsmitteln, wie Salpetersäure oder nitrosen Gasen, auf verkohlte pflanzliche Stoffe, wie Holzkohle, erhalten werden, zusammen mit beliebigen vegetabilischen Gerbstoffen verwendet. PATENT CLAIM: Modification of the process for tanning animal skins protected by patent 42o648, characterized in that, instead of the tanning agents produced from fossil substances by oxidation, products that are produced by the action of oxidizing agents such as nitric acid or nitrous gases on charred vegetable substances such as Charcoal, can be used together with any vegetable tanning agent.
DEB115726D 1924-05-14 1924-09-18 Process for tanning animal skins Expired DE432687C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEB114094D DE420648C (en) 1924-05-14 1924-05-14 Process for tanning animal skins
DEB115726D DE432687C (en) 1924-05-14 1924-09-18 Process for tanning animal skins

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB114094D DE420648C (en) 1924-05-14 1924-05-14 Process for tanning animal skins
DEB115726D DE432687C (en) 1924-05-14 1924-09-18 Process for tanning animal skins

Publications (1)

Publication Number Publication Date
DE432687C true DE432687C (en) 1926-08-11

Family

ID=60410276

Family Applications (2)

Application Number Title Priority Date Filing Date
DEB114094D Expired DE420648C (en) 1924-05-14 1924-05-14 Process for tanning animal skins
DEB115726D Expired DE432687C (en) 1924-05-14 1924-09-18 Process for tanning animal skins

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEB114094D Expired DE420648C (en) 1924-05-14 1924-05-14 Process for tanning animal skins

Country Status (1)

Country Link
DE (2) DE420648C (en)

Also Published As

Publication number Publication date
DE420648C (en) 1925-10-28

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