Natural Rubber Latex for Reconstituted Leather

Manufacturer: We are looking into the possibility of making the so-called reconstituted leather using waste leather scrap. Can you advise us what the process entails and the choice of the binding agent?

John Woon (Senior Latex Consultant): Briefly the process used involves precipitation (coagulatiuon) of diluted natural rubber latex in the "leather slurry" using aluminium sulphate as the coagulant. The slurry is then filtered, pressed and dried.

I found the evaporated latex concentrate to be superior to the normal centrifuged latex concentrate because the former has a wider range of rubber particle size i.e. there are more smaller rubber particles and hence bigger particle surface area in the evaporated latex. There is only one manufacturer for such latex in the world, namely, Revertex Malaysia.You can contact them by clicking the following link:
http://www.revertex.com.my/. I'm sure they would be more than pleased to tell you more about the process of making reconstituted leather.

Incidentally, reconstituted leather has been used for shoe insoles, heel lifts amd also as stiffeners for heels and toes.

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