| 摘要 |
<p>PURPOSE:To manufacture a laminate having sufficient adhesion between each layer and being suitable for a packaging material, etc., easily and efficiently by spraying an ozone synthetic gas against the surface of a specific polypropylene film layer and laminating another layer on the spraying surface. CONSTITUTION:Polypropylene, which is a copolymer of propylene and a diene compound and a side chain of which has a carbon-carbon unsaturated bond, is extrusion-molded in the manufacture of a laminate, in which a plurality of layers are laminated, thus forming a polypropylene film layer 1. An ozone- containing gas containing ozone at a rate of 1g/m<3> or more is sprayed against the surface of the polypropylene film layer 1 under a molten state at a rate of 50ml/m<2>, and the surface of the layer 1 is treated with ozone. The ozone- treated surface of the polypropylene film layer and an anchor coat layer 3 surface compound of the anchor coat agent of a base material sheet 2 are faced oppositely and laminated and pressed. Accordingly, the laminate having sufficient adhesion among each layer 1-3 is manufactured easily and efficiently.</p> |
