Polyolefin resin film and multilayer body using same

A multilayer body comprising:

• a polyolefin resin film that satisfies the following 1) to 3) and includes a polypropylene resin composition that contains a propylene-α-olefin random copolymer;
• and
• a biaxially stretched nylon film, wherein
• the multilayer body satisfies the following 4) to 6),
• 1) a sealing layer, a core layer, and a laminate layer are included in order, respectively,
• 2) a content of linear low-density polyethylene in the polypropylene resin composition constituting the sealing layer is not larger than 3% by weight,
• 3) a content of linear low-density polyethylene in the polypropylene resin composition constituting each of the core layer and the laminate layer is not smaller than 3% by weight and not larger than 50% by weight,
• 4) the number of pinholes of the multilayer body is not larger than 35 after bending the multilayer body 1000 times at 1° C.,
• 5) the multilayer body has a piercing strength of not smaller than 10 N, and
• 6) the multilayer body has a heat-sealing strength of not smaller than 20 N/15 mm.