Multilayer lamination film for laser printing and package body and printing body formed thereby, and ink composition for laser printing used therefor

A multilayer lamination film for laser printing comprising at least a base material layer, a printing layer and a sealant layer, wherein

• the printing layer is a layer made of an ink composition that is printable by laser light,
• the ink composition comprises a white ink including at least titanium oxide and a binder resin,
• the binder resin comprises at least one selected from the group consisting of urethane resin, polyester resin, acrylic resin, cellulosic resin, and combinations thereof,
• the white ink has one or more endothermic peaks in the range of 50 to 165° C. in a differential scanning calorimetry endothermic curve,
• the binder resin contains a crystalline component at one or more of said endothermic peaks, and
• a total crystal heat of melting for all of the endothermic peaks observed in the range of 50 to 165° C. that is a sum of a crystal heat of melting measured at each temperature having one of said one or more endothermic peaks is 0.1 to 1000 mJ/mg, wherein the endothermic peak temperature in differential scanning calorimetry is determined from an endothermic curve measured with temperature increase at a heating rate of 10° C./min according to the method of JIS-K7121 and 7122.