| 摘要 |
<p>PURPOSE:To obtain a thermally laminated product of a thermoplastic resin excellent in the bonding strength in a simple step, by punching a skin sheet from the side of a base sheet using needles when the base sheet is thermally laminated to the skin sheet. CONSTITUTION:The skin sheet 3 is placed on the base sheet 2 immediately after extrusion from an extruder and still in a molten state, and they are introduced into spaces between rolls 4, 4', 4'' to be thermally laminated. In this case, at the point when they come out from the space between the rolls 4, 4', punching is carried out by the reciprocating needles 5. In case the skin sheet 3 comprises a vinyl chloride leathercloth 6 and a foamed urethane 7 that are combined, the reciprocating needles 5 deform the base sheet 2 and further bite into the layer of the foamed urethane 7. Due to the anchoring effect, the deformed parts 8 are firmly stuck to the layer of the foamed urethane 7.</p> |
