| 摘要 |
<p>The modification of the molecular structure of elastomeric synthetic yarns by heat-setting is effected continuously between a prodn. or delivery machine and a collecting or receiving machine for the yarns. The yarns are heat-treated at a suitable temp. continuously, whilst holding them at a selected tension, which is a function of the final required elasticity properties. Properties is continuous, and requires no supplementary operations, such as winding onto perforated bobbins and heating these in an oven. Time and costs are thus reduced.</p> |
