PURPOSE: To enable an excellent quality image to be obtained by enabling troublesome processing to be performed by a method wherein smoothness of both front and rear surfaces of a perforated base material is specified.

CONSTITUTION: A heat shrinkable polyester film is bonded to Manila hemp issue paper of which smoothness is 7s. or higher and lower than 30s on front and back surfaces by using an adhesive of vinyl chloride and vinyl acetate copolymer. Further, dimethyl silicone oil is applied onto the heat shrinkable polyester film to obtain base paper for thermosensitive screen printing.