Abstract: A spout is put between and attached to a pair of plane parts including front and rear surfaces forming a bag body. The spout includes a tube part to which a cap having a tamper-proof ring is attached on its topside, and a first flange and a second flange provided on an outer peripheral surface of the tube part on the side of its base end. The outer diameter of the first flange, which is the topmost, is equal to or larger than the outer diameter of the tamper-proof ring in a front-rear direction of the bag body. This causes the first flange to cover the whole lower part of the tamper-proof ring.

Abstract: An easily openable packaging bag according to the present invention does not produce an opening piece resulting in a small piece of waste when opening, and facilitates opening even with a single hand. Furthermore the easily openable packaging bag of the present invention can be also applied to a packaging bag provided with barrier characteristics. The easily openable packaging bag joins both ends of a packaging material into a tube shape. Both of the joined ends are heat sealed to form a bonded rear portion in a rear portion of the tube portion and solid contents are contained in an inner section of the tube portion. A weakened portion is formed in a portion not occupied by the contents in the tube portion along a circumferential direction of the tube portion and the weakened portion is not provided in at least a portion of the bonded rear portion.

Abstract: An easily openable packaging bag according to the present invention does not produce an opening piece resulting in a small piece of waste when opening, and facilitates opening even with a single hand. Furthermore the easily openable packaging bag of the present invention can be also applied to a packaging bag provided with barrier characteristics. The easily openable packaging bag joins both ends of a packaging material into a tube shape. Both of the joined ends are heat sealed to form a bonded rear portion in a rear portion of the tube portion and solid contents are contained in an inner section of the tube portion. A weakened portion is formed in a portion not occupied by the contents in the tube portion along a circumferential direction of the tube portion and the weakened portion is not provided in at least a portion of the bonded rear portion.

Abstract: A packing package includes a gusseted container formed from laminated films and having opposite side walls and gussets extending between the opposite side walls, and a spout attached to an opening in the gusseted container. The laminated film forming either the two opposite side walls or the gussets is provided with a heat insulating barrier. The laminated film forming the gussets is not provided with any heat insulating barrier when the two opposite side walls are formed from the laminated film provided with a heat insulating barrier. The laminated film forming the two opposite side walls is not provided with any heat insulating barrier when the gussets are formed from the laminated film provided with a heat insulating barrier.

Abstract: A packing package includes a gusseted container formed from laminated films and having opposite side walls and gussets extending between the opposite side walls, and a spout attached to an opening in the gusseted container. The laminated film forming either the two opposite side walls or the gussets is provided with a heat insulating barrier. The laminated film forming the gussets is not provided with any heat insulating barrier when the two opposite side walls are formed from the laminated film provided with a heat insulating barrier. The laminated film forming the two opposite side walls is not provided with any heat insulating barrier when the gussets are formed from the laminated film provided with a heat insulating barrier.