India rubber world . e redKasai. is one of the best Afri-can grades. The prime blackKasai is obtained by theboiling and smoking process,of which I shall say a fewwords further. Now I come to a most im-portant question about curingthe latex of Landolphia—Vntprocess of coagulation withthe Bosanga juice. The Costusafer (the Bosanga plant)has more the appearance of aDOLPHiA-VINES. reed than a tree. The coagu- lating properties of its juice were discovered a few years ago inthe Lopori district, and this method gives wonderful results,although it is Aery simple. A small percentage of Bosangajuice is
India rubber world . e redKasai. is one of the best Afri-can grades. The prime blackKasai is obtained by theboiling and smoking process,of which I shall say a fewwords further. Now I come to a most im-portant question about curingthe latex of Landolphia—Vntprocess of coagulation withthe Bosanga juice. The Costusafer (the Bosanga plant)has more the appearance of aDOLPHiA-VINES. reed than a tree. The coagu- lating properties of its juice were discovered a few years ago inthe Lopori district, and this method gives wonderful results,although it is Aery simple. A small percentage of Bosangajuice is mixed with the latex and, with his finger or a stick, theman stirs the liquid, the coagulation taking place almost in-stantly. After this, the latex, which now is a thick mass, isshaped into balls and left to dry in the shade or stored in abungalow. It takes as a rule six to eight weeks for the rubberto dry enough for shipment to Europe. I think it most im-portant to mention that the Bosanga juice coagulates latex. 6 THE INDIA RUBBER WORLD [October i, 1904.
Size: 1324px × 1888px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, bookidindiarubberworld31phil
