Method for producing grain-oriented electrical steel sheet

A method for producing a grain-oriented electrical steel sheet, the method comprising the steps of:

• heating a steel slab having a chemical composition containing, in mass %, C:
• 0.010% to 0.100%, Si:
• 1.00% to 5.00%, Mn:
• 0.010% to 0.500%, N:
• less than 0.0050%, Al:
• less than 0.0100%, and S:
• less than 0.0050%, with the balance being Fe and inevitable impurity, then hot rolling the steel slab to obtain a hot-rolled sheet;
• cold rolling the hot-rolled sheet once, or two or more times with intermediate annealing in between, to obtain a cold-rolled sheet;
• subjecting the cold-rolled sheet to decarburization annealing to obtain a decarburized annealed sheet;
• applying an annealing separator to the decarburized annealed sheet and then coiling the decarburized annealed sheet to obtain a coil;
• and
• subjecting the coil to final annealing, where,
• in the final annealing, at both a hottest point and a coolest point of the coil, a heating rate H1 from room temperature to 850° C. is 10.0° C./h or more and a heating rate H2 from 850° C. to 950° C. is 15.0° C./h or less.