| 摘要 |
<p>A process for bonding, without any adhesive, a plastic material layer onto a backing fabric of any kind, by stretching said fabric lengthwise and crosswise to widen its meshes, which fabric is then heated by the coating cylinder to a temperature depending on the type of fabric, to maintain the plastic coating material to be applied in the semimolten state, whereupon it is calendered. The apparatus providing the biaxial widening of the meshes of the fabric also provides for its preheating in a preheating station and guides said fabric onto the coating cylinder, simultaneously controlling its contact time with the latter. <IMAGE></p> |
