PURPOSE: To easily and arbitrarily provide an uneven pattern to the decorative surface of a continuously laminated sheet by employing synchronously embossed decorative printing sheet as a decorative sheet in a double belt pressing method.

CONSTITUTION: A synchronously embossed decorative printing sheet immersed with diarylphthalate resin and a laminating material are inserted between two pressurized running belts, heat treated, and laminated. Then, an uneven pattern can be easily provided on the decorative surface of the diarylphthalate resin synchronously embossed continuously laminated sheet. The diarylphthalate resin contains diarylphthalate prepolymer, unsaturated polyester resin, curing agent, cur inhibitor, inner release agent, filler, etc. The printing sheet is formed by printing a picture pattern with ink containing cure suppressor, release agent, pigment, vehicle resin, etc. on sheet such as titanium sheet, film sheet, craft sheet, etc., cloth such as cotton cloth, glass cloth, etc. or the decorative sheet such as nonwoven fabric, etc.