Paper bag and manufacturing method for a paper bag

A paper bag for bulk material such as cement, gypsum, granular material, animal feed or the like, with a front side, a rear side, a closed bottom and an upper closed part opposite the closed bottom, wherein

• at least one of the closed bottom and the upper closed part comprises a first side flap connected to the front side via a first fold line having a first outer end region and a second outer end region, a second side flap connected to the rear side via a second fold line having a first outer end region and a second outer end region, a first corner tuck located at the first outer end regions of the first and second fold lines and a second corner tuck opposite the first corner tuck and located at the second outer end regions of the first and second fold lines,
• the at least one of the closed bottom and the upper closed part is formed by folding the first and second side flaps and by gluing the first and second side flaps to the first and second corner tucks and/or each other,
• the folding of the first and second side flaps comprises folding the first side flap around the first fold line and the second side flap around the second fold line such that the first and second side flaps are folded over each other and over the first and second corner tucks,
• the gluing of the first and second side flaps to the first and second corner tucks and/or each other comprises providing each of the first and second corner tucks with several strip-like patches of gluing or bonding agent extending parallel to each other and activatable after application, wherein the several strip-like patches are applied continuously at least from the first fold line to at least the second fold line, and
• the gluing of the first and second side flaps to the first and second corner tucks and/or each other additionally comprises providing each of the first and second corner tucks with at least one non-continuous patch or strip of gluing or bonding agent extending parallel to the several continuous strip-like patches of gluing or bonding agent and having sections which fall at least onto the first and second fold lines and/or a center fold line positioned between the first and second fold lines.