Patent ID: 6290337
Filing Date: 2001-09-18
Classification: B41J

Abstract:
A print head for ink-jet printing, comprising:an orifice plate comprised of at least one metal;an intermediate layer of reinforcement material bonded to said orifice plate, said intermediate layer being comprised of at least one silicon-containing composition selected from the group consisting of silicon dioxide, silicon nitride, silicon carbide, and mixtures thereof;an ink barrier layer comprised of an organic polymer composition; andan organic adhesion promoter positioned between said intermediate layer and said ink barrier layer, said organic adhesion promoter bonding said intermediate layer to said ink barrier layer in order to prevent detachment of said orifice plate from said print head, said organic adhesion promoter being selected from the group consisting of polyacrylic acid, polymethylacrylic acid, an organosilane composition, and mixtures thereof.