Patent ID: 7832658
Filing Date: 2010-11-16
Classification: B05D,B41J,Y10T

Abstract:
1. A liquid ejection head for ejecting droplets of a solution, comprising: an ejection substrate in which through-holes are formed, said droplets being ejected through said through-holes; and droplet ejection means for ejecting said droplets of said solution from said through-holes, each of said droplet ejection means being disposed for each through-hole, wherein said ejection substrate has a liquid repellent structure so that a solution-ejection surface of said ejection substrate around said through-holes corresponds to an upper surface of said liquid repellent structure, said liquid repellent structure comprising: a support; a honeycomb-patterned film formed by applying a solution of an organic compound comprising a fluorine-free or non-fluorine-based polymeric compound in an organic solvent onto said support to form a solution film on said support, placing said support to form a solution film on said support, placing said support on which said solution film is formed in an atmosphere containing water vapor to form water droplets on a surface of said solution film and evaporating said organic solvent and said water droplets; and a coating film which is formed on a surface of said honeycomb-patterned film and is made of a fluorine-containing material.