Abstract: The invention relates to a process for the production of marble conglomerate slabs, starting from marble sand and/or granulates, additivated with binders, of the kind comprising a step of mixing the raw materials, a step of placing the mixture on a conveyor belt or on moulds, an under vacuum vibro-compaction step and a following step of polymerisation of the binder, further comprising a step of placing a protective sheet on said conveyor belt or on the base of said moulds, before pouring the mixture, and on said mixture, said protective sheet being comprised of hydrosoluble plastic material in such a way to coat the mixture above and at the bottom before the vibro-compaction step, said hydrosoluble material sheet beeing automatically removed, after the binder polymerisation step, from the water of the slab finishing workings.

Abstract: A film according to the present invention optimizes the productive process of slabs made of marble agglomerates because this film solves one of the main problems that arise in this kind of production, namely, the removal of the protective material such as paper, rubber etc. from the slab when the baking phase is concluded and before the beginning of the subsequent phases in which the slab is finished off.