| 摘要 |
<p>PURPOSE:To improve the slip preventing property of a composite object, providing an unevenness to the surface of a substrate, by lapping a fibrillated plane object to a planar object to become the substrate so as to be shifted relatively to a direction different from a proceeding direction when sticking them together. CONSTITUTION:While a foamed, fibrillated plane object 12 is obtained by using an extruder, extruding from a T-die at ca. 230 deg.C a compound composed of ca. 99wt% of a low density polyethylene and ca. 1wt% of a foaming agent, an azodicarbonamide as the raw material of the foamed, fibrillated plane object and foaming, fibrillating, a film 13 is obtained by extruding a single polypropylene at ca. 250 deg.C, using another extruder. Then, a composite film 16 is obtained by introducing both, being in an unsolidified state, to a casting roll 14 of which the surface temperature is 95 deg.C, shifting relatively at an amplitude of ca. 3cm so as to reciprocate once a ca. 10cm of an advance, lapping, sticking together, cooling and solidifying.</p> |
