Patent ID: 7131880

Claim:
Process for manufacturing an array of barriers made of a mineral material on a tile intended for the manufacture of a plasma display panel, comprising the following steps: on the tile, depositing a green barrier layer of uniform thickness comprising a powder of a barrier material and an organic binder; applying, to the green barrier layer, of a protective mask made of a polymer material, provided with patterns corresponding to the array of barriers to be formed; blasting of an abrasive material onto the mask so as to remove the green barrier layer between the patterns of the mask and to form green barriers comprising a base, a top and sidewalls; removing the mask; depositing a green layer, comprising a phosphor and an organic binder, at least on the sidewalls of the barriers; performing at least one baking operation, at least under conditions suitable for removing the organic binder from the green barrier layer and/or from the green layer of phosphors and, when baking the barrier layer, at least for consolidating the mineral barrier material; wherein: the powder of the barrier material comprises a mineral filler and a mineral binder, the weight content of mineral binder in this powder being less than 13% and greater than 0.1%; and the entire weight content of organic binder in the green barrier layer is less than 8% and greater than 0.1%.