Abstract: A process for obtaining a material including a textured glass substrate coated, on at least one of its textured faces, with an antireflective coating of sol-gel type based on porous silica, includes a stage of application, to the at least one textured face of the substrate, of a solution containing at least one silica precursor and at least one pore-forming agent, then a heat treatment stage targeted at consolidating the antireflective coating. Before the application stage, the glass substrate is subjected to a preheating stage, so that the at least one textured face intended to be coated with the antireflective coating has a temperature within a range extending from 30° C. to 100° C. immediately before the application stage.

Abstract: An apparatus for the implementation of a process for the continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. An apparatus contains a transfer roller; a coating roller contacting the transfer roller, a surface of the coating roller having a plurality of hexagonally shaped cells with a line count being from 50 to 200 lines per centimeter and a volume being from 5·10?6 to 10·10?6 m3 per square meter of the coating roller surface; and a tank containing an aqueous passivation solution, the tank providing the aqueous passivation solution to the coating roller.

Abstract: A mirror includes a transparent substrate, at least one metallic reflecting layer and at least one protective paint layer on the back of the mirror. The mirror also includes an overlayer which is a barrier to corrosive elements, such as sulfides and/or chlorides, with a thickness of less than or equal to 6 ?m which is located on the protective layer. The process for the manufacture of such a mirror is also described.

Abstract: A process for obtaining a material including a textured glass substrate coated, on at least one of its textured faces, with an antireflective coating of sol-gel type based on porous silica, includes a stage of application, to the at least one textured face of the substrate, of a solution containing at least one silica precursor and at least one pore-forming agent, then a heat treatment stage targeted at consolidating the antireflective coating. Before the application stage, the glass substrate is subjected to a preheating stage, so that the at least one textured face intended to be coated with the antireflective coating has a temperature within a range extending from 30° C. to 100° C. immediately before the application stage.

Abstract: An apparatus for the implementation of a process for the continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. An apparatus contains a transfer roller; a coating roller contacting the transfer roller, a surface of the coating roller having a plurality of hexagonally shaped cells with a line count being from 50 to 200 lines per centimeter and a volume being from 5·10?6 to 10·10?6 m3 per square meter of the coating roller surface; and a tank containing an aqueous passivation solution, the tank providing the aqueous passivation solution to the coating roller.

Abstract: A process for continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. The layer is an aqueous passivation solution, the thickness of which is less than 3 ?m and the viscosity of which is less than 1.5·10?3 Pa·s at 20° C., and is deposited on one of the faces of the strip. This depositing is carried out by a transfer roller in contact with the strip and with a second coating roller, the surface of which has a plurality of hexagonally shaped cells, the line count of which is between 50 and 200 lines per centimeter, and the total volume of which is between 5·10?6 and 10·10?6 m3 per square meter of roller surface. The coating roller is fed with aqueous passivation solution by dipping in a tank equipped with wiping means and the strip runs at a speed greater than or equal to 400 m/m. An apparatus for implementation of the process is also provided.

Abstract: A mirror includes a transparent substrate, at least one metallic reflecting layer and at least one protective paint layer on the back of the mirror. The mirror also includes an overlayer which is a barrier to corrosive elements, such as sulfides and/or chlorides, with a thickness of less than or equal to 6 ?m which is located on the protective layer. The process for the manufacture of such a mirror is also described.

Abstract: A mirror includes a transparent substrate, a metallic reflecting layer and a protective layer on the back of the mirror, in which at least one barrier layer to corrosive agents with a thickness after drying of less than 1 ?m is located between the metallic reflecting layer and the protective layer, the barrier layer being a layer based on metal alkoxides, oxides, phosphates or sulfides and on organic resin, the alkoxides, oxides, phosphates or sulfides being chosen from titanium or zirconium alkoxides or oxides, tin or zinc oxides, zinc, manganese or tin phosphates and zinc sulfide, alone or as a mixture.

Abstract: A process for continuous manufacturing of steel strips for packaging coated with a passivation layer is provided. The layer is an aqueous passivation solution, the thickness of which is less than 3 ?m and the viscosity of which is less than 1.5·10?3 Pa·s at 20° C., and is deposited on one of the faces of the strip. This depositing is carried out by a transfer roller in contact with the strip and with a second coating roller, the surface of which has a plurality of hexagonally shaped cells, the line count of which is between 50 and 200 lines per centimeter, and the total volume of which is between 5·10?6 and 10·10?6 m3 per square meter of roller surface. The coating roller is fed with aqueous passivation solution by dipping in a tank equipped with wiping means and the strip runs at a speed greater than or equal to 400 m/m. An apparatus for implementation of the process is also provided.