Patent ID: 8142078

Claim:
A material-filled package formed with a fill material filled into a three-way sealed bag, the material-filled package comprising: an overlap portion formed in a manner that a laminated film is arcuately bent into a tubular shape and both-side edge portions of the laminated film are overlapped; a plurality of vertical seal portions formed substantially in parallel to one another in a state where a band-like non-seal portion is remained on an end side of a lateral edge portion on an outer surface side in the overlap portion; and lateral seal portions respectively formed to intersect with both longitudinal end portions of the vertical seal portions, wherein the laminated film includes a seal layer formed from a low density polyethylene, and a base layer imparting a film strength; said seal layer formed of low density polyethylene being welded to itself at said overlap portion; said base layer having a higher melting point than said seal layer; and the vertical seal portions and the lateral seal portions are each composed of a coagulatively peelable and easily unsealable seal.