Oriented magnetic steel plate excellent in coating adhesion and method of production of same

A method of producing an oriented magnetic steel plate excellent in coating adhesion comprising the steps of:

• annealing a hot rolled oriented magnetic steel plate comprising, by mass %, C:
• 0.10% or less, Si:
• 1.8 to 7%, Mn:
• 0.02 to 0.30%, a total of one or more of S and Se:
• 0.001 to 0.040%, acid soluble Al:
• 0.010 to 0.065%, N:
• 0.0030 to 0.0150%, Bi:
• 0.0005 to 0.05, and the balance of Fe and unavoidable impurities,
• cold rolling the annealed oriented magnetic steel plate one time or two times or more or two times or more with process annealing in between cold rolling steps, thereby finishing the plate to a final thickness,
• next decarburization annealing the cold rolled steel plate,
• then coating the steel plate surface with an annealing separator,
• drying the annealing separator, and
• then final annealing the coated steel plate;
• the annealing separator having
• MgO as a main ingredient, and
• one or more of a Ce compound, La compound, Pr compound, Nd compound, Sc compound, and Y compound converted to metal in the range of 0.01 to 14 mass % with respect to MgO,
• a Ti compound, wherein the amount of Ti is from 0.5 to 10 mass % with respect to MgO, and
• one or more of Sr, Ca, and Ba, wherein the amount of metal is from 0.1 to 10 mass % with respect to the mass of MgO.