Patent ID: 8440293

Claim:
A laminated tape used for sealing a packaging body, comprising: an adhesive material layer; a first polyolefin layer laminated on a first side of the adhesive material layer; and a second polyolefin layer laminated on a second side of the adhesive material layer, the first and the second polyolefin layers being welded onto mutually opposing attachment portions of the packaging body, wherein the first polyolefin layer is made of polyolefin having higher crystallinity than the polyolefin of the second polyolefin layer, the adhesive material layer is in contact with the first polyolefin layer at a first contact surface and the adhesive layer is in contact with the second polyolefin layer at a second contact surfaces, the first contact surface defining an easy-peel layer being capable of peeled off more easily than the second contact surface, and the easy-peel layer is capable of being re-adhered after being peeled off.