REFILLABLE COATING FOR PRINTING HEAD NOZZLE PLATE

摘要

PROBLEM TO BE SOLVED: To provide a nozzle plate for an ink-jet printing head which carries a coating that can be easily refilled. SOLUTION: This nozzle plate 10 for an ink-jet printing head comprises (a) a first monomolecular layer 30 of an organic material having a first and a second functional groups and (b) a second monomolecular layer 40 of an organic material having a first and a second functional groups. The first functional group of the first monomolecular layer is bound to a surface of the nozzle plate and the second functional group of the first monomolecular layer is bound to the second monomolecular layer. The first functional group of the second monomolecular layer is bound to the second functional group of the first monomolecular layer and the second functional group of the second monomolecular layer is an anti-wetting group. The monomolecular layers are included in the described order.