A flexible package having a closure device and a lap or fin seal is provided that reduces or eliminates an air gap present at the fin or lap seal portion of conventional packages. The package can include a film with a closure applied to the film. A bridge material is provided to the film to fill the air gap when the closure is in a sealed condition. The flexible package alternatively can include a film having a closure device applied to the film transverse to the first and second side edges of the film, with the first side edge portion extending into the fin seal such that at least a portion of the first side edge portion to eliminate an air gap between the fin seal and at least one of the first and second side edge portions.

The present invention provides a manufacturing system of a packaging bag with excellent manufacturing efficiency. According to the present invention, provided is a manufacturing system of a packaging bag, including: a film supply device; a conveying device; a bottom insertion device; a bottom sealing device; a transverse sealing device; and a cutoff device, wherein the film supply device supplies a front surface long film and a back surface long film facing each other, the conveying device is configured to convey the front surface long film and the back surface long film, the bottom insertion device, the bottom sealing device, the transverse sealing device, and the cutoff device are arranged in this order along a conveyance direction, the bottom insertion device is configured to start inserting a bottom long film between the front surface long film and the back surface long film at an insertion start position and to complete insertion of the bottom long film at an insertion completion position downstream from the insertion start position, the bottom sealing device is configured to weld the bottom long film to the front surface long film and to the back surface long film, the transverse sealing device forms a transverse seal portion extending in a direction perpendicular to the conveyance direction so as to weld the front surface long film and the back surface long film to each other, and the cutoff device cuts off the front surface long film, the back surface long film, and the bottom long film along the transverse seal portion.

The invention is a hybrid inserter/wrapper system comprising a hybrid inserter/wrapper system comprising a modular document inserter system and a unique wrapper-like envelope creation module operably connected thereto. The wrapper-like envelope creation module is configured to operate in a first mode and a second mode. In the first mode, the wrapper-like envelope creation module is configured to fabricate wrapper-like outer envelopes and feed such outer envelopes to the inserter system. In the second mode, the wrapper-like envelope creation module is configured to allow the inserter to be loaded with premade envelopes and feed such envelopes to the inserter system. In either mode, the document inserter system further carries out downstream operations to thereby produce a finished mailpiece.

The invention is a hybrid inserter/wrapper system comprising a hybrid inserter/wrapper system comprising a modular document inserter system and a unique wrapper-like envelope creation module operably connected thereto. The wrapper-like envelope creation module is configured to operate in a first mode and a second mode. In the first mode, the wrapper-like envelope creation module is configured to fabricate wrapper-like outer envelopes and feed such outer envelopes to the inserter system. In the second mode, the wrapper-like envelope creation module is configured to allow the inserter to be loaded with premade envelopes and feed such envelopes to the inserter system. In either mode, the document inserter system further carries out downstream operations to thereby produce a finished mailpiece.