DE585080C - Process for producing dry, ready-to-tan bare animal skins - Google Patents

Process for producing dry, ready-to-tan bare animal skins

Info

Publication number
DE585080C
DE585080C DEC46130D DEC0046130D DE585080C DE 585080 C DE585080 C DE 585080C DE C46130 D DEC46130 D DE C46130D DE C0046130 D DEC0046130 D DE C0046130D DE 585080 C DE585080 C DE 585080C
Authority
DE
Germany
Prior art keywords
ready
bare
tan
producing dry
animal skins
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
DEC46130D
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.)
CHEM FAB SCHWALBACH AKT GES
Original Assignee
CHEM FAB SCHWALBACH AKT GES
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 CHEM FAB SCHWALBACH AKT GES filed Critical CHEM FAB SCHWALBACH AKT GES
Priority to DEC46130D priority Critical patent/DE585080C/en
Application granted granted Critical
Publication of DE585080C publication Critical patent/DE585080C/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
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/08—Deliming; Bating; Pickling; Degreasing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Verfahren zur Herstellung trockener gerbfertiger Blößen tierischer Häute Es ist bekanntgeworden, Hautblößen mit Alkohol-Wasser-Gemischen oder auch mit Alkohol-Aceton-Gemischen zu behandeln und schließlich auch mit Alkoho1-Aceton-Gemischen, .die ganz geringe Mengen eines niedrig siedenden Esters enthalten. Bei systematischer Verfolgung der Aufgabe, reine und zum Zwecke der schnellen und weitgehenden Gerbstoff aufnahme trockene, hochporöse Felle usw. herzustellen, wurde beobachtet, daß niedrig siedende, insbesondere auch mit Wasser mischbare Gemische von Methylalkohol und alipliatischen Ketonen mit größeren Mengen von aliphatischen Fettsäureestern ein wesentlich besseres Ergebnis bringen, als es bei den früher bekannten und oben eingeführten Methoden der Fall war. Gleichzeitig ergeben sich Häute von besonderer Reinheit und heller Farbe. Für die genannten Zwecke gut geeignete Gemische fallen beispielsweise bei der Trockendestillation von Holz in reichlichen Mengen an. Ausführungsbeispiel Eine geäscherte, entkalkte und schwach gebeizte Rinderflanke wird nach dem Spülen unter Verwendung eines Gemisches von 70 °@o Methylacetat, 2o °/ö Methylalkohol und ro oho Aceton im Extraktor konserviert. Nach etwa zweimaligem Erneuern des Konservierungsgemisches wird die Blöße herausgenommen und getrocknet und kann in diesem Zustande dauernd aufbewahrt werden. Sie kann jedoch auch weiter der Gerbung unterzogen werden.Process for the production of dry animal pelts ready for tanning Skins It has become known to make skin pelts with alcohol-water mixtures or else to be treated with alcohol-acetone mixtures and finally also with alcohol-acetone mixtures, .which contain very small amounts of a low-boiling ester. With systematic Pursuit of the task, pure and for the purpose of quick and extensive tanning uptake to produce dry, highly porous skins, etc., has been observed to be low boiling, especially water-miscible mixtures of methyl alcohol and aliphatic ketones with larger amounts of aliphatic fatty acid esters Bring significantly better results than those previously known and introduced above Methods was the case. At the same time, skins of particular purity and light color. Mixtures which are well suited for the purposes mentioned include, for example in the dry distillation of wood in copious amounts. Embodiment A cremated, decalcified and slightly pickled beef flank becomes after rinsing using a mixture of 70 ° @ o methyl acetate, 2o ° / ö methyl alcohol and ro oho acetone preserved in the extractor. After about two renewals of the preservation mixture the nakedness is taken out and dried, and in this state it can last be kept. However, it can also be subjected to further tanning.

Man kann den Gehalt an Methylacetat auf 20 Ob, verringern und den Gehalt der beiden anderen Komponenten entsprechend erhöhen. Statt des genannten künstlich hergestellten Gemisches kann ein bei der Holzgeistdestillation abfallendes Gemisch von Fettsäureestern, Methylalkohol und aliphatischen Ketonen mit fast gleichem Erfolge Verwendung finden.The methyl acetate content can be reduced to 20 ob and the content of the other two components can be increased accordingly. Instead of the artificially produced mixture mentioned, a mixture of fatty acid esters, methyl alcohol and aliphatic ketones that falls off during the distillation of wood spirits can be used with almost the same success.

Sehr vorteilhaft kann man auch ein Gemisch von 70 % Methylacetat, 2o olo Aceton und r o °/o Methylalkohol anwenden, da dasselbe innerhalb weniger Grade konstant siedet und daher das Verdunsten sehr gleichmäßig erfolgt, was für die Erzielung eines guten Endproduktes von besonderer Bedeutung ist.A mixture of 70% methyl acetate, Apply 2o olo acetone and r o ° / o methyl alcohol as the same thing within less Degree of constant boiling and therefore the evaporation takes place very evenly, what for the achievement of a good end product is of particular importance.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung trockener gerbfertiger Blößen tierischer Häute, dadurch gekennzeichnet, daß man die entkalkten und gebeizten Hautblößen mit einem Gemisch, das vorwiegend aus Estern der niederen einbasischen Fettsäuren sowie Methylalkohol und aliphatischen Ketonen besteht, insbesondere mit solchen Gemischen, welche als Vorlauf bei der Holzdestillation anfallen, behandelt und dann trocknet.PATENT CLAIM Process for the production of dry pelts ready for tanning animal hides, characterized in that the decalcified and pickled skin pelts are used with a mixture consisting mainly of esters of the lower monobasic fatty acids as well as methyl alcohol and aliphatic ketones, especially with those Mixtures, which are incurred as preliminary runnings in the wood distillation, treated and then dries.
DEC46130D 1932-03-03 1932-03-03 Process for producing dry, ready-to-tan bare animal skins Expired DE585080C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC46130D DE585080C (en) 1932-03-03 1932-03-03 Process for producing dry, ready-to-tan bare animal skins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC46130D DE585080C (en) 1932-03-03 1932-03-03 Process for producing dry, ready-to-tan bare animal skins

Publications (1)

Publication Number Publication Date
DE585080C true DE585080C (en) 1933-09-28

Family

ID=7026268

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC46130D Expired DE585080C (en) 1932-03-03 1932-03-03 Process for producing dry, ready-to-tan bare animal skins

Country Status (1)

Country Link
DE (1) DE585080C (en)

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