DE457818C - Process for the production of leather - Google Patents

Process for the production of leather

Info

Publication number
DE457818C
DE457818C DEH106719D DEH0106719D DE457818C DE 457818 C DE457818 C DE 457818C DE H106719 D DEH106719 D DE H106719D DE H0106719 D DEH0106719 D DE H0106719D DE 457818 C DE457818 C DE 457818C
Authority
DE
Germany
Prior art keywords
leather
production
pelt
solution
vitriol
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
DEH106719D
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.)
CARL HOEPER
Original Assignee
CARL HOEPER
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 CARL HOEPER filed Critical CARL HOEPER
Priority to DEH106719D priority Critical patent/DE457818C/en
Application granted granted Critical
Publication of DE457818C publication Critical patent/DE457818C/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)

Description

Verfahren zur Herstellung von Leder. Nachdem die üblichenVorarbeiten, wieWeichen, Äschern, Enthaaren usw., erledigt sind, gelangt die Blöße nach dem Verfahren gemäß der Erfindung in eine Thiosulfatlösung (io 1,-Natriumthiosulfat auf ioo kg Blöße-) worin sie 2 bis 3 Stunden verbleibt. Dann kommt die Blöße in eine Lösung aus folgenden Bestandteilen (auf ioo kg Blöße) # 31/2 kg Kaliumb,ichromat, 5 kg Eisenvitriol, i'/, kz Zinkb 2 -vitriol, 21/, kg Salzsäure (:21' B#). ' Man rechnet auf ioo kg Blöße etwa 300 1 Wasser. In dieser Chrombrühe verbleibt die Blöße bis zur vollständigen Durchtränkung Hierauf bringt bl tl* el man die Haut in ein Reduktionsbad, besteh--ncl aus einer wäßrigen Lösung von Soda, der man z# Ammonial, zusetzt, und nvar nimmt man auf 1 1 Wasser 125 g Soda und io ccm Ammoniak. In diesem Bade verbleibt die Haut bis zur vollständi-en Reduktion und Neutralisierun-ZD z#* Schließlich wird -in an sich bekannter Weise gefettet und getrocknet.Process for the production of leather. After the usual preparatory work, such as soaking, liming, dehairing, etc., has been carried out, the pelt is placed in a thiosulphate solution (10 1, -sodium thiosulphate per 100 kg of pelt -) in which it remains for 2 to 3 hours according to the method according to the invention. Then, the pelt is in a solution of the following components (on ioo kg pelt) # 2.31 kg Kaliumb, ichromat 5 kg of ferrous sulphate, i '/ kz Zinkb 2 -vitriol, 21 / kg hydrochloric acid (21' B #) . ' One calculates about 300 liters of water per 100 kg of nakedness. In this chromium broth, the pelt remains until complete saturation Then brings bl tl * el to the skin in a reduction bath, besteh - ncl of an aqueous solution of soda, which one z # Ammonial, adding, and nvar is taken up in 1 1 water 125 g soda and 10 cc ammonia. The skin remains in this bath until it is completely reduced and neutralized. Finally, it is greased and dried in a manner known per se.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Leder, dadurch gekennzeichnet, daß die Blöße zunächst mit Natriumthiosulfatlösung und dann mit einer Brühe aus Kallumbichromat, Eisenvitriol, Zinkvitriol und Salzsäure behandelt wird, worauf eine Nachbehandlung mit Sorlalösung und Ammoniak folgt. Claim: Process for the production of leather, characterized in that the pelt is treated first with sodium thiosulphate solution and then with a broth of callumbichromate, iron vitriol, zinc vitriol and hydrochloric acid, which is followed by an aftertreatment with sorla solution and ammonia.
DEH106719D 1926-05-30 1926-05-30 Process for the production of leather Expired DE457818C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH106719D DE457818C (en) 1926-05-30 1926-05-30 Process for the production of leather

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH106719D DE457818C (en) 1926-05-30 1926-05-30 Process for the production of leather

Publications (1)

Publication Number Publication Date
DE457818C true DE457818C (en) 1928-03-24

Family

ID=7170124

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH106719D Expired DE457818C (en) 1926-05-30 1926-05-30 Process for the production of leather

Country Status (1)

Country Link
DE (1) DE457818C (en)

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