Kraft Paper Bag Sealing & Sewing Machines

Kraft Paper Bag Sealing & Sewing Machines are designed for multi-layer paper packaging structures where an inner PE liner requires heat sealing and the outer kraft paper bag requires an additional mechanical or adhesive closure. The range covers different configurations for paper-bag construction, outer-bag stitching, folding and hot-melt adhesive tape application. Depending on the machine configuration, the bag-closing process can include inner PE liner heat sealing, pressure-roller pressing, bag-mouth trimming, kraft or crepe paper tape application, outer-bag sewing, folding and hot-melt adhesive sealing. This provides a coordinated closure process for multi-layer paper bags rather than relying on a single sealing operation. The range includes GKS machines for paper bags with PE inner liners and outer paper-tape closure. GKS-23D is specified for 3-layer paper bags, while GKS-24D is specified for 4-layer paper bags. The GKS-324D is designed for kraft paper bags with PE inner lining and a folded edge, where the PE liner is heat-sealed, the bag mouth is folded and the folded edge is sealed using hot-melt paper before automated discharge. The range also includes configurations for special envelope-style packaging and models that combine inner-liner heat sealing with outer-bag stitching and hot-melt adhesive closure. This allows the equipment selection to follow the specific construction and closure method of the paper packaging.