Liquid spraying nozzle and producing method thereof

The present invention relates to an ink ejection head (H) and the like as, when the upper surface (ink chamber member 1) the liquid chamber side of the piezoelectric element member (2) in a liquid such as a liquid ejecting ink ejection head when the liquid chamber forming member by electroless plating, a portion of the at least one surface comprising a material containing the plated secondary nucleation growth of the nuclear material forming the auxiliary layer (2d) configuration. It is formed on the core layer of secondary material comprising (2d), a liquid chamber forming member by electroless plating.