Method for producing a flat material and corresponding flat material, fastener and nappy close strap and nappy

摘要

The method involves connecting flatly non-woven materials (2, 3) and an elastic film (6) with each other to be flat by pressing on each other. The contact pressures in an elastic region are smaller than that in an non-elastic region. The non-woven material and the elastic film are pressed on each other with a surface structure over a calendar roll (9). The non-woven material and the elastic film are thermally connected with each other by extrusion lamination or welding. Holes or openings are smaller than a middle fiber length of fibers of the non-woven material.