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;
• 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,
• wherein the clamping device comprises a first clamping device and a second clamping device;
• the point ironing device comprises a first point ironing device and a second point ironing device;
• the ironing and pressing device comprises a first ironing and pressing device and a second ironing and pressing device;
• the cooling device comprises a first cooling device and a second cooling device, and
• the punching device is located between the first cooling device and the second clamping device.