| 摘要 |
<p>The present invention develops a method for extruding a foam film through a T-die extruder, and can manufacture a single-layer foam film and a multi-layer film of two layers or three layers constituted of a foam layer and a non-foam layer. In particular, the single-layer film has troublesomeness requiring lamination of a non-foam film for actual use, but a top layer of a multi-layer foam film constituted of two layers or three layers is co-extruded as a non-foam layer, thus getting a lamination work unnecessary.</p> |
