AT257534B - Process for the production of an artificial leather - Google Patents

Process for the production of an artificial leather

Info

Publication number
AT257534B
AT257534B AT906563A AT906563A AT257534B AT 257534 B AT257534 B AT 257534B AT 906563 A AT906563 A AT 906563A AT 906563 A AT906563 A AT 906563A AT 257534 B AT257534 B AT 257534B
Authority
AT
Austria
Prior art keywords
production
artificial leather
fleece
parts
split
Prior art date
Application number
AT906563A
Other languages
German (de)
Inventor
Otto Zwoboda
Original Assignee
Otto Zwoboda
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 Zwoboda filed Critical Otto Zwoboda
Priority to AT906563A priority Critical patent/AT257534B/en
Application granted granted Critical
Publication of AT257534B publication Critical patent/AT257534B/en

Links

Landscapes

  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Description

  

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  Verfahren zur Herstellung eines Kunstleders 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 diesem Grund ist es zweckmässig, die Faserschicht durch eine wasserdampfdurchlässige Sperrschicht vor dem zu tiefen Eindringen des Deckschaums zu schützen. 



   Beispiel :
100 Teile Polyäther (OH-Zahl 50),
9, 0 Teile Natrium-tetraborat-deca-hydrat,   0, 2   Teile Endoäthylen-piperazin,
0, 2 Teile   Dibutyl-Zinn-Dilaurat,  
2, 0 Teile Silikonöl,
0, 2 Teile Äthylmorpholin,
52, 0 Teile Toluilen-diisocyanat werden innig gemischt und bei Raumtemperatur auf ein Faservlies aufgebracht. Das imprägnierte Vlies wird in einen Wärmeschrank von etwa 110 C gelegt. Die Schaumreaktion beginnt dann sofort und verläuft mit ähnlicher Geschwindigkeit, wie sie bei Raumtemperatur verlaufen würde, wenn an Stelle von Borax eine äquivalente Menge nicht gebundenes Wasser verwendet würde. Durch mechanische Nachbearbeitung der Oberfläche erhält das imprägnierte Material ein lederähnliches Aussehen.



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  Process for the production of an artificial leather
 EMI1.1
 

 <Desc / Clms Page number 2>

 For this reason it is advisable to protect the fiber layer from the outer foam penetrating too deeply with a barrier layer that is permeable to water vapor.



   Example:
100 parts of polyether (OH number 50),
9.0 parts of sodium tetraborate deca hydrate, 0.2 parts of endoethylene piperazine,
0.2 parts of dibutyl tin dilaurate,
2, 0 parts silicone oil,
0.2 parts of ethyl morpholine,
52.0 parts of toluene diisocyanate are mixed intimately and applied to a nonwoven fabric at room temperature. The impregnated fleece is placed in an oven at around 110 ° C. The foam reaction then begins immediately and proceeds at a rate similar to that which would proceed at room temperature if an equivalent amount of unbound water were used instead of borax. Mechanical finishing of the surface gives the impregnated material a leather-like appearance.

 

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung eines Kunstleders durch Imprägnieren eines Faservlieses mit einem Bindemittel, welches verschäumbar ist, dadurch gekennzeichnet, dass man auf das Faservlies eine Mischung der Ausgangskomponenten für ein Polyurethan, welches solche Stoffe enthält, die bei einer anschliessenden Wärmebehandlung Wasser abspalten, aufbringt, anschliessend diese Mischung sich gleichmässig im Vlies bei Raumtemperatur verteilen lässt, worauf man das so imprägnierte Vlies einer solchen Wärmebehandlung aussetzt, bei der die Wasserabspaltung erfolgt. PATENT CLAIM: Process for the production of an artificial leather by impregnating a fiber fleece with a binder which is foamable, characterized in that a mixture of the starting components for a polyurethane, which contains substances that split off water during a subsequent heat treatment, is applied to the fiber fleece, then this Mixture can be distributed evenly in the fleece at room temperature, whereupon the impregnated fleece is subjected to a heat treatment in which water is split off.
AT906563A 1963-11-13 1963-11-13 Process for the production of an artificial leather AT257534B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT906563A AT257534B (en) 1963-11-13 1963-11-13 Process for the production of an artificial leather

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT906563A AT257534B (en) 1963-11-13 1963-11-13 Process for the production of an artificial leather

Publications (1)

Publication Number Publication Date
AT257534B true AT257534B (en) 1967-10-10

Family

ID=3610900

Family Applications (1)

Application Number Title Priority Date Filing Date
AT906563A AT257534B (en) 1963-11-13 1963-11-13 Process for the production of an artificial leather

Country Status (1)

Country Link
AT (1) AT257534B (en)

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