Abstract: The invention concerns the production of draining porcelain stoneware tiles and method of production thereof. The invention concerns a tile with rectangular quadrilateral shape and edges with thickness (S), with a planar outer surface on which a series of variable geometry grooves are provided according to a drainage direction on the outer surface. The geometry of said groove can be triangular, trapezoidal or elliptical section. The vertexes of these embodiments form the bottom of said groove with height h, and said height h increases according to said drainage direction generating an inclined drainage plane of said groove.

Abstract: Aspects of the present invention concern the production of draining porcelain stoneware tiles. Aspects of the present invention more particularly concern a tile with rectangular quadrilateral shape and edges with thickness (S), with a planar outer surface on which a series of variable geometry grooves are provided according to a drainage direction on the outer surface, wherein a drain fulcrum is defined at a central point on the substantially planar surface of the file and drainage direction are defined as extending radially inward from edges of the tile toward the drain fulcrum, and each of the plurality of grooves extends from the first end to the second end thereof in one of the drainage directions. The geometry of said groove can be triangular, trapezoidal or elliptical section. The vertexes of these embodiments form the bottom of said groove with height h, and said height h increases according to said drainage direction generating an inclined drainage plane of said groove.

Abstract: The invention concerns the production of draining porcelain stoneware tiles and method of production thereof. The invention concerns a tile with rectangular quadrilateral shape and edges with thickness (S), with a planar outer surface on which a series of variable geometry grooves are provided according to a drainage direction on the outer surface. The geometry of said groove can be triangular, trapezoidal or elliptical section. The vertexes of these embodiments form the bottom of said groove with height h, and said height h increases according to said drainage direction generating an inclined drainage plane of said groove.