THIN SHEET FOR FE-NI SHADOW MASK AND PRODUCTION THEREOF

PURPOSE:To stably and efficiently form the surface of a steel sheet and inexpensively supply the steel sheet which can prevent adhesion at the time of annealing by confining the surface roughness of a specific numerical value within a range where an etching property, etc., are not affected. CONSTITUTION:The steel sheet is rolled by using dull rolls having =3.0 Rku in the final two passes at the time of multipass rolling and by using bright rolls in the passes before these passes, by which the surface roughness of the steel sheet having >=3.0 and =3 passes at the time of the multipass rolling, by which the surface roughness of the steel sheet having >=3.0 and