JP2020100160A5 - - Google Patents

Claims (9)

A bag-shaped exterior body having two surface portions facing each other, an opening formed at each one end edge portion in the vertical direction of the surface portion, and a bottom portion formed at each other end edge portion in the vertical direction of the surface portion , and A method for manufacturing a packaging bag, which is provided with a plurality of notches extending in a predetermined direction in a zigzag manner, and which is composed of an inner body to be housed in the outer body,
The folding portion between said one edge portion of two of said surface portions with one of said surface portions of said outer body and comprising a sheet-like package material is bent at the bending portion along the lateral direction Nera other of the surface and weight In the state in which is arranged in the predetermined direction without extending the exterior edge region set in each of the one end edge portion and the sheet-shaped interior material to be the interior body in a direction intersecting the predetermined direction. and interior edge area set across the edge in the direction orthogonal to the bonding step of bonding,
After performing the bonding step, the folding portion is returned to a planar shape, and the interior material is folded at a fold line portion along the predetermined direction, and the interior material is interposed between the two surface portions. A method of manufacturing a packaging bag, which is characterized by the following. In the bonding step, one of the exterior edge regions and one of the interior edge regions are simultaneously bonded, and at the same time, the other exterior edge region is bonded to the other interior edge region. The method for manufacturing the packaging bag according to claim 1. The folded portion has a dimension between the exterior edge regions after the one surface portion of the exterior material is folded at the folded portion and before the bonding step is performed. The method for manufacturing a packaging bag according to claim 1 or 2, wherein the position in the vertical direction is set to be equal to. The outer member has the other edge portion to each other of the two said surface portions are continuously provided through said bottom, is bent before the implementation of the bonding step, the folded portion and the opposite direction before Symbol bottom The method for manufacturing a packaging bag according to any one of claims 1 to 3, characterized in that: Wherein the outer package is composed of two of said surface portions having different sheet material,
Before carrying out the bonding step, the one end edge portion of the sheet material that constitutes one of the surface portions bent at the folding portion , and the one end edge portion of the sheet material that constitutes the other surface portion. The manufacturing method of the packaging bag according to any one of claims 1 to 3, further comprising an arranging step of arranging the sheet materials so as to overlap each other so that the folded portion is located therebetween. At least one of the sheet material is an adhesive sheet material in which a thermoplastic layer is laminated in a region including at least the exterior edge region and the other edge region of the surface portion of the sheet material,
The folding portion is formed by Rukoto bending the outer edge region and the other edge portion and the adhesive sheet material so as to overlap of one of said surface which consists of the adhesive sheet material,
In the arranging step, the sheet material is arranged so that the other edge portions are overlapped with each other,
In the laminating step, the exterior end edge region and the other end edge part of the adhesive sheet material bent at the folding part , the other end edge part of the other sheet material, and one interior end edge region. 6. A thermocompression bonding step of melting or softening the thermoplastic layer in the outer edge region and the other edge region of the adhesive sheet material in a state in which the layers are overlapped with each other is included. Method for manufacturing a packaging bag. The bonding step includes a step of applying an adhesive to at least one of the interior edge area and the exterior edge area, and the interior edge area and the exterior edge with the adhesive applied in the application step. The manufacturing method of the packaging bag according to any one of claims 1 to 6, further comprising a bonding step of bonding the edge region. A feeding step of feeding a strip-shaped interior raw material used as the interior material,
A cutting step of cutting the interior raw material fed in the feeding step to obtain the sheet-shaped interior material
The method for manufacturing a packaging bag according to any one of claims 1 to 7, characterized in that. Methods of manufacturing the packaging bag according to any one of claims 1-8, characterized in that it comprises a bag-making step of the bag manufacturing the sheathing material after the implementation of the Orimodo step.