Automotive glazing having superior optical quality

A method for producing an automotive glazing comprising an optical sensor device, the method comprising:

• providing at least one glass sheet,
• applying an enamel obscuration mask on at least one face of the at least one glass sheet to block a visual field from an outside of an automobile, the enamel obscuration mask extending to an area wherein the at least one optical sensor device will be fixed, the enamel obscuration mask comprising at least one opening on an automotive interior side so as to be capable of acquiring information through the at least one opening from the optical sensor device fixed on the at least one opening,
• drying or firing the enamel obscuration mask,
• applying a washable cover layer resisting at a temperature of at least 620° C. on the
• surface of the at least one opening, wherein the washable cover layer extends partially from a peripheral edge of the at least one opening towards the obscuration mask around the at least one opening in a region corresponding to 5 to 50 mm from the peripheral edge of the at least one opening,
• submitting the glass sheet with the washable cover layer thereon to a heat treatment at a temperature above 450° C. during a bending or a tempering process,
• removing the washable cover layer by washing the cover layer.