| 摘要 |
<p>There is disclosed apparatus for the treatment of films of plastics material which comprises at least a basic unit having, in one section, grooved and heated roll means, and in another, following section, godet rolls. In use, films of fibrillatable plastics material, such as of polypropylene, which have been profiled to exhibit a plurality of parallel longitudinal enlarged portions, can be conveniently heated and hot-stretched, the grooved roll means being very effective for heating and traction purposes. The apparatus may include other units, and there may be additional sections in the basic unit, all preferably constructed on a modular system for cheapness and ease of assembly.</p> |
