Liquid droplet ejecting recording head

摘要: A liquid droplet ejecting recording head comprises portion including an orifice for droplets and a heat actuating communicated with the orifice, electrothermal transducer as means generating energy, energy acting on at droplets, characterized in that part contacting of is made material whose ΔW not more than one-tenth 1 mg/cm2 where decrement weight per unit area time "t", when subjected to decreasing test, "t" being which ΔW(Al) aluminum plate 99.9% purity tested surface test.