DE649246C - Process for the production of leather substitutes - Google Patents

Process for the production of leather substitutes

Info

Publication number
DE649246C
DE649246C DEW96380D DEW0096380D DE649246C DE 649246 C DE649246 C DE 649246C DE W96380 D DEW96380 D DE W96380D DE W0096380 D DEW0096380 D DE W0096380D DE 649246 C DE649246 C DE 649246C
Authority
DE
Germany
Prior art keywords
leather
production
waste
leather substitutes
degreased
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
DEW96380D
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.)
OTTO MILLER ABWESENHEITSPFLEGE
PHILIPP WIDERSPICK
Original Assignee
OTTO MILLER ABWESENHEITSPFLEGE
PHILIPP WIDERSPICK
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 OTTO MILLER ABWESENHEITSPFLEGE, PHILIPP WIDERSPICK filed Critical OTTO MILLER ABWESENHEITSPFLEGE
Priority to DEW96380D priority Critical patent/DE649246C/en
Application granted granted Critical
Publication of DE649246C publication Critical patent/DE649246C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin

Description

Verfahren zur Herstellung von Lederersatz Gegenstand der Erfindung ist die Herstellung eines Lederersatzes, der zur Hierstellun g von Schuhen und Hausschuhen (als Sohlenleder zu Brandsohlen und Zwischenleder), von Geldbörsen, für Wandverkleidungen, Fußbodenbeläge, Bremsbeläge, Dichtungen und Bekleidungsstückie v_ erwendet werden kann.Process for the production of leather substitutes The subject of the invention is the production of a leather substitute, which is used for shoes and slippers (as sole leather for insoles and intermediate leather), from purses, for wall coverings, Floor coverings, brake linings, seals and clothing are used can.

Zur Herstellung dieses Lederersatzes werden Lederabfälle zuerst durch Waschen gereinigt und getrocknet. Dann erfolgt eine Entfettung dieser Lederabfälle durch Behandlung mit fettlösenden Lösungsmitteln (Trichloräthylen, Tetrachlorkohlenstoff, Benzin oder Benzol) bei einer Temperatur unter äo°. Nach dieser einmaligen Behandlung werden die Lederabfälle ausgepreßt 'und in einem Mischwerk mit Kautschuk, Schwefel und Farbstoffen gemischt. Die so erhaltene Mischung wird sofort durch Kalander und Vulkanisiertische geleitet und hierbei auf die gewünschte Stärke und Breite ausgezogen und vulkanisiert.In order to produce this leather substitute, leather waste is first carried out Wash cleaned and dried. This leather waste is then degreased by treatment with fat-dissolving solvents (trichlorethylene, carbon tetrachloride, Petrol or benzene) at a temperature below - 0 °. After this one-time treatment The leather waste is pressed out and in a mixer with rubber and sulfur and dyes mixed. The mixture thus obtained is immediately through calenders and Vulcanizing tables and pulled out to the desired thickness and width and vulcanized.

Nur dadurch, daß die Entfettung der Lederschnitzel nicht wie bei den bekannten Verfahren durch Verseifung oder Erhitzen mit Lösungsmitteln verfolgt, sondern durch Behandeln der Lederabfälle unter 2o' mit fettlösenden Lösungsmitteln, kann man einen technisch brauchbaren Lederersatz herstellen, der aus etwa 8o % Lederabfällen besteht. Die tagtäglich anfallenden, bis jetzt fast wertlosen Lederabfälle können somit wieder nutzbar verwendet werden.Only because the degreasing of the leather chips is not the same as with the known processes followed by saponification or heating with solvents, but by treating the leather waste under 2o 'with fat-dissolving solvents, a technically usable leather substitute can be made from around 80% leather waste consists. The leather waste that is generated every day and has so far been almost worthless can thus be reused.

Die so erhaltene Masse unterscheidet sich nach der Fertigstellung in Griff und Aussehen sow'e in b@ezug auf -Festigkeit und Biegeeigenschaften kaum vom - Naturleder. Desgleichen sind die Verarbeitungsmöglichkeifen dieselben wie -bei Leder. Die Massaa hat in bezug auf Abnutzung und Verschleiß eine längere Leblensdauer als reines Leder.After completion, the mass obtained in this way hardly differs from natural leather in terms of handle and appearance, as well as in terms of strength and flexural properties. Likewise, the processing options are the same as - with leather. The Massaa has a longer lifespan than pure leather in terms of wear and tear.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Lederersatz durch Mischen von entfetteten Lederabfällen mit Kautschuk und Schwefel und Vulkanisieren der Mischung, dadurch gekennzeichnet, daß lohgare Lederabfälle verwendet werden, die nach dem Mahlen, Waschen und Trocknen mit Lösungsmitteln, wie Trichloräthylen, Tetrachlorkohlenstoff, Benzin. oder Benz3l, unterhalb 20° entfettet und danach ausgepreßt worden sind.PATENT CLAIM: Process for the production of leather substitutes by mixing of degreased leather waste with rubber and sulfur and vulcanization of the mixture, characterized in that lohgare leather waste is used after the Grinding, washing and drying with solvents such as trichlorethylene, carbon tetrachloride, Petrol. or Benz3l, degreased below 20 ° and then squeezed out.
DEW96380D 1934-01-03 1934-01-03 Process for the production of leather substitutes Expired DE649246C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW96380D DE649246C (en) 1934-01-03 1934-01-03 Process for the production of leather substitutes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW96380D DE649246C (en) 1934-01-03 1934-01-03 Process for the production of leather substitutes

Publications (1)

Publication Number Publication Date
DE649246C true DE649246C (en) 1937-08-19

Family

ID=7614536

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW96380D Expired DE649246C (en) 1934-01-03 1934-01-03 Process for the production of leather substitutes

Country Status (1)

Country Link
DE (1) DE649246C (en)

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