Packaging bag, apparatus and method for manufacturing film material of the packaging bag, and method of manufacturing the packaging bag

An apparatus for manufacturing a film material, wherein the film material is used for making a packaging bag having a portable portion, the apparatus comprising:

• a traction device configured for transporting the film material;
• a punching device configured for punching the film material;
• a clamping device configured for clamping a patch, wherein the patch is used for attaching to the film material;
• a point ironing device configured for point-ironing the patch;
• an ironing and pressing device configured for ironing and pressing the patch;
• and
• a cooling device configured for cooling the patch.

A method of manufacturing a film material, comprising the following steps:

• punching the film material to form a punching hole;
• clamping a sealing patch and moving the sealing patch over the film material;
• point-ironing the sealing patch to combine the sealing patch with the film material, the sealing patch covers the punching hole completely with margin extending beyond the punching hole;
• ironing and pressing the sealing patch to combine the sealing patch with the film material, ironing and pressing all around the margin of the sealing patch to ensure sealing property;
• cooling the sealing patch to cool the sealing patch and the film material into one piece.

A method for manufacturing a packaging bag with a film material, wherein the film material is manufactured by the following steps:

• punching the film material to form a punching hole;
• clamping a sealing patch and moving the sealing patch over the film material;
• point-ironing the sealing patch to combine the sealing patch with the film material, the sealing patch covers the punching hole completely with margin extending beyond the punching hole;
• ironing and pressing the sealing patch to combine the sealing patch with the film material, ironing and pressing all around the margin of the sealing patch to ensure sealing property;
• cooling the sealing patch to cool the sealing patch and the film material into one piece;
• wherein the patch is located on the side portion of the packaging bag.