Method for manufacturing a multilayer PVC semifinished product and a corresponding apparatus

A method for manufacturing a multilayer PVC semi-finished product, said method comprising:

• forming a first layer by:
• a. coating a coated or uncoated carrier web with a PVC plastisol, whereby a carrier web coated with an ungelled plastisol layer is obtained;
• thereafter
• b. gelling the ungelled plastisol layer, whereby a carrier web coated with a gelled plastisol layer is obtained;
• and thereafter
• c. cooling the carrier web coated with the gelled plastisol layer;
• and, thereafter;
• forming multiple layers on the first layer by:
• d. coating the first layer with a plurality of ungelled PVC plastisol layers, wet on wet, simultaneously or in immediate succession;
• thereafter
• e. simultaneously gelling the plurality of ungelled plastisol layers;
• and thereafter
• f. simultaneously cooling the plurality of gelled plastisol layers by transporting the carrier web through a cooling unit for cooling the gelled plastisol layers.