DE706027C - Process for the production of artificial leather - Google Patents

Process for the production of artificial leather

Info

Publication number
DE706027C
DE706027C DEQ2255D DEQ0002255D DE706027C DE 706027 C DE706027 C DE 706027C DE Q2255 D DEQ2255 D DE Q2255D DE Q0002255 D DEQ0002255 D DE Q0002255D DE 706027 C DE706027 C DE 706027C
Authority
DE
Germany
Prior art keywords
production
leather
artificial leather
ice powder
molding compound
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
DEQ2255D
Other languages
German (de)
Inventor
Bernhard Quendt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEQ2255D priority Critical patent/DE706027C/en
Application granted granted Critical
Publication of DE706027C publication Critical patent/DE706027C/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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Verfahren zur Herstellung von Kunstleder Die 'Erfindung betrifft ein Verfahren zur Herstellung von Kunstleder durch Zusammenpressen von zerfaserten Lederabfällen und einem Bindemittel und bezweckt die Erzielung einer dem natürlichen Leder entsprechenden und außerordentlich erwünschten Luftdurchlässigkeit in einfacher und die spätere Verwendung nicht beeinträchtigender Weise. Dies wird erfindungsgemäß dadurch erreicht, daß man der auf mindestens o° abgekühlten Preßmasse Eispulver in einer der erwünschten Porosität entsprechenden Menge und Körnung beimischt und die Formstücke auf Temperaturen über o° erwärmt.Process for the production of artificial leather The 'invention relates to a Process for the production of artificial leather by pressing together frayed leather waste and a binder and the aim is to achieve a natural leather and extremely desirable air permeability in simple and the later Use in a non-impairing manner. According to the invention, this is achieved by that the molding compound cooled to at least o ° ice powder in one of the desired Porosity corresponding amount and grain size are added and the fittings to temperatures warmed over o °.

Es ist bereits bekannt, Kunstschwämme durch Einverleiben entsprechend fein verteilter, leicht schmelzbarer Körper in die teigartige Formmasse und Ausschmelzen nach dem Trocknen herzustellen. Hierbei hat man aber stets nur solche Körper wie kristallwasserhaltige Salze, z. B. Glaubersalz, oder Paraffin u. dgl. verwendet, die durch das Ausschmelzen nicht restlos entfernt werden können und einer nachträglichen Auswaschung bedürfen, falls die an den Porenwänden anhaftenden Reste die Verwendung des porösen Formkörpers stören. Eine Anwendung derartiger Stoffe bei der Kunstlederherstellung ist zwar ebenfalls möglich, bedarf aber bei wesentlich feineren Poren des Kunstleders einer zeitraubenden und daher kostspieligen Auswaschung mit Lösungsmitteln für den betreffenden Festkörper, abgesehen davon, daß in den Poren zurückbleibende Reste nachdem Trocknen zufolge ihrer Kristallnatur zerstörend auf die Lederfaser wirken können und so das Leder brüchig machen.It is already known to incorporate artificial sponges accordingly finely divided, easily meltable body into the dough-like molding compound and melted out to make after drying. Here, however, one always only has bodies such as salts containing water of crystallization, e.g. B. Glauber's salt, or paraffin and the like used, which cannot be completely removed by melting out and a subsequent one Need to be washed out if the residues adhering to the pore walls are to be used interfere with the porous molded body. An application of such substances in the manufacture of artificial leather is also possible, but requires the artificial leather for much finer pores a time-consuming and therefore costly solvent washout for the relevant solid, apart from the fact that residues remaining in the pores after drying have a destructive effect on the leather fiber due to their crystal nature can and thus make the leather brittle.

Demgegenüber bedarf es beim Verfahren gemäß der Erfindung überhaupt keiner besonderen Nachbehandlung nach der Formgerbung. Es genügt, daß beispielsweise durch Pressen oder Walzen geformte Sohlleder bei Raumtemperaturen vergleichsweise kurze Zeit lagern zu lassen, damit das Eispulver in Form von flüssigem Wasser bzw. Wasserdampf praktisch restlos entfernt wird. Durch die Menge bzw. Feinheit des beigefügten Eispulvers ist man in der Lage, den Grad der Luftdurchlässigkeit zu regeln.In contrast, it is necessary in the method according to the invention at all no special aftertreatment after form tanning. It is enough that, for example sole leather formed by pressing or rolling at room temperatures comparatively to be stored for a short time so that the ice powder is in the form of liquid water or Water vapor is practically completely removed. Through the Amount or Fineness of the attached ice powder one is able to control the degree of air permeability to regulate.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Kunit= Leder durch Zusammenpressen von zerfaserten Lederabfällen und einem Bindemittel, dadurch gekennzeichnet, daß man der auf mindestens o° abgekühlten Preßmasse Eispulver in einer der erwünschten @Porosität entsprechenden Menge und Körnung beimischt und die Formstücke auf Temperaturen über o° erwärmt.PATENT CLAIM: Process for the production of Kunit = leather by pressing together of fiberized leather waste and a binder, characterized in that one of the molding compound cooled to at least 0 ° ice powder in one of the desired @ Porosity corresponding amount and grain size are added and the fittings to temperatures warmed over o °.
DEQ2255D 1939-05-16 1939-05-16 Process for the production of artificial leather Expired DE706027C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEQ2255D DE706027C (en) 1939-05-16 1939-05-16 Process for the production of artificial leather

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEQ2255D DE706027C (en) 1939-05-16 1939-05-16 Process for the production of artificial leather

Publications (1)

Publication Number Publication Date
DE706027C true DE706027C (en) 1941-05-16

Family

ID=7394896

Family Applications (1)

Application Number Title Priority Date Filing Date
DEQ2255D Expired DE706027C (en) 1939-05-16 1939-05-16 Process for the production of artificial leather

Country Status (1)

Country Link
DE (1) DE706027C (en)

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