Method for manufacturing a plastic fabric-film composite product, plastic fabric-film composite and packaging bag comprising a plastic fabric-film composite
A method for manufacturing a plastic fabric-film composite product includes forming an extruded-film web with at least one sealing layer by film extrusion in such a way that the sealing layer is located on a first side of the extruded-film web and then, feeding and laminating a plastic-fabric web made of film-strip fabric and the prefabricated extruded-film strip with one another to form a composite web. The composite web is formed in such a way that a second side of the extruded-film web faces a first side of the plastic-fabric web.
1. A method for manufacturing a plastic fabric-film composite product, comprising the steps of:
using film extrusion, forming an extruded-film web comprising at least one sealing layer so that the sealing layer is located on a first side of the extruded-film web, and
forming a composite web by feeding and laminating to one another, a plastic-fabric web comprising a film-strip fabric and the extruded-film web so that a second side of the extruded-film web faces a first side of the plastic-fabric web,
wherein the film-strip fabric comprises plastic strips that are interwoven so as to cross over one another.
2. The method as recited in claim 1 , wherein the step of using film extrusion to form the extruded-film web is implemented by blown-film extrusion.
3. The method as recited in claim 1 , wherein the step of using film extrusion to form the extruded-film web include coextruding the extruded-film web in multiple layers.
4. The method as recited in claim 3 , wherein the extruded-film web comprises at least one barrier layer in addition to the sealing layer.
5. The method as recited claim 1 , wherein the extruded-film web and the plastic-fabric web are connected to each other by extrusion lamination.
6. The method as recited in claim 1 , wherein a cover film is provided with an imprint on a print side and wherein the cover film is laminated with the plastic-fabric web so that the print side of the cover film faces a second side of the plastic-fabric web.
7. The method as recited in claim 1 , wherein the plastic-fabric web has a mass per unit area of between 40 g/m 2 and 80 g/m 2 and the extruded-film web has a thickness of between 25 μm and 90 μm, and wherein a lamination layer is formed during the lamination, the lamination layer having a thickness between 10 μm and 50 μm.