1. A process for the manufacture of a floor covering having two contrasting-coloured layers of rubber arranged one on top of the other, in which the layers are press-moulded together and bonded and consolidated by vulcanization of the material forming them, and in which the upper layer is completely removed to expose the under layer in the surface areas distributed in the manner of a pattern, characterized in that the material of the upper layer is partially vulcanized before press-moulding and removed in the said surface areas, and in that the press moulding is performed in such a way that the material of the under layer completely fills the surface areas.
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