| 摘要 |
PURPOSE:To enable continuous production of a linear color forming material which is capable of making optional linear coloring, by a method wherein a molding material extruded through a nozzle of an extruder is scored by a cutter and a coloring agent is poured into a score from an injector. CONSTITUTION:A plurality of stripes of scores 4 is provided on a sheetlike molding material 3, which has been extruded through an outlet nozzle 2 by kneading and melting a resin molding material loaded in an extruder 1, by a cutter 5 whose angle theta is set at 90 deg.. This molding material 3 with scores is kept at a horizontal state through a back-up roller 6. A regulator valve 15 is released under this state, compressed air is supplied to a coloring agent tank 10 through air piping 13, adjusted by a flow adjusting valve 11 and a coloring agent 7 is poured into the scores 4 from the tip of an injection needle 12 through a supply pipe 16. |
