| 摘要 |
PURPOSE:To manufacture a laminated sheet, in which the flow rate of a specific molten resin before confluence in a co-extrusion equipment can easily be controlled apart from the flow rates of other molten resins and no foreign matter such as a resin, which is changed with time or thermally deteriorated, is generated. CONSTITUTION:A co-extrusion equipment composed of a plurality of extruders EX1, EX2 and a co-extrusion block 15 with a plurality of accepting ports 18a, 18b communicating with the extruders, a plurality of flow paths 19a, 19b communicating with the accepting ports, flow paths 20a, 20b communicating with the flow paths 19a, 19b, a flow path 25 formed by joining the flow paths 20a, 20b and a slit 26 communicating with the flow path 25 is provided. Thin walls 22 are formed to the joining sections of the flow paths 19a, 19b, 20a, 20b or parts of at least one flow paths 20a, 20b of a plurality of the flow paths while the non-flow path sides of the thin walls 22 are provided with flow-path sectional-area adjusting means pushing and pulling the thin walls 22 in the thickness direction of the thin walls. |
