| 摘要 |
<p>PURPOSE:To provide a reinforced paper container which can withstand freezing for sterilization or heating and defrosting in a microwave oven even if ordinary paper is used as the raw material. CONSTITUTION:A reinforcing agent of paper composed of a plurality of synthetic resins and hardening catalyst or the like is sprayed from a pipe 10 with nozzle on the one side face of paper P transferred by a belt conveyor 5. The paper P with the sprayed reinforcing agent is immediately transferred to a heating and drying section while being pressed by press rollers 6, 7 and dried to mold as a specified paper container. A film of a food additive is formed on the surface of paper container.</p> |
