Abstract: An information storage medium packaging body comprises a case 30 for containing an information storage medium, a packaging film 10 for packing the case 30, and the packaging film 10 includes a heat shrinkable film 11. A hologram layer 20 is formed on a front surface of the heat shrinkable film 11. An offset preventing layer 23 and a printed pattern layer 12 are formed on the back surface of the heat shrinkable layer 11.

Abstract: Offset printing on a polypropylene resin case for a video tape cassette is readily and effectively accomplished by: first applying an anchor coat, containing a polyol, a polyester and a vinyl chloride resin as principal components and isocyanate as a curing agent, onto the surface to be thus printed of a polypropylene sheet from which a blank sheet is to be die cut and assembled into said case; subjecting the anchor coat to a precuring treatment; and then offset printing on the anchor coat surface with the use of an offset printing ink of ultraviolet ray-curing tape before the anchor coat becomes fully cured.