| 摘要 |
A composite non-woven sheet materia 2 comprising a base material, for example creped paper, is formed with reinforcing stitches to provide dimensional stability and control of extensibility. The yam forming the stitches is made of a multiplicity of filaments adhered together to form a single cohesive element. The adhering may be carried out by application of adhesive, which later sets or cures, or by melting together the individual filaments of the yams, both to themselves and to adjacent yams. A method is disclosed for manufacture of said material comprising passing the stitched material 2 over a roll 4 coated in adhesive, the material 2 being dried in a subsequent drying process eg by passing over a heated roll or by passing it through an oven. In a further embodiment the yam filaments may be adhered by passing through an oven and heating to a temperature sufficient to cause softening or melting of the yam sheath resulting in the sheath filaments flowing into each other forming a unitary structure. |
