Decorative resin sheet, and molded resin article and process for production thereof

A method of manufacturing a molded resin article, the method comprising:

• a providing step of providing a decorative resin sheet, which comprises a crosslinked mold layer having a first surface and a second surface and contains 50 wt % or more, with respect to the entirety of resin components in the mold layer, of a polyolefin-based elastomer, by irradiating the mold layer in an uncrosslinked state with an energy ray at a defined acceleration voltage and irradiation dosage so as to crosslink the mold layer and provide the decorative resin sheet with a 100% modulus at 200° C. of 0.02 MPa or more, which modulus is measured at a tension speed of 200 mm/min by a method including setting a distance between a pair of chucks for holding both ends of a test piece of a dumbbell shape No. 3 at a time of initiation of a test to 60 mm and defining a time point at which the distance between the pair of chucks reaches 120 mm as a time point at which a tensile elongation of the test piece becomes 100% in JIS K6251 (2004 version), wherein an embossment is formed on the second surface of the mold layer;
• a placing step of placing the decorative resin sheet after the crosslinking in an injection molding die so that the second surface of the mold layer faces a side of the injection molding die from which a molten resin is injected:
• a molding step of injecting the molten resin in a direction toward the second surface of the mold layer placed in the injection molding die to mold an injection molded resin article into conformity with the embossment, wherein the first surface of the mold layer directly contacts an inner surface of the injection molding die during the molding step;
• and
• a separating step of separating the molded resin article from the decorative resin sheet, thereby transferring the embossment onto a surface of the molded resin article.