pre-impregnateとは 意味・読み方・使い方

In the method for producing expandable polystyrene-based colored resin particles in which polystyrene-based particles are fed to a pressure-resistant container, a dye and a blowing agent are added to the container to impregnate the polystyrene-based resin particles with the blowing agent and the dye, the dye contains Solvent Blue 78 and the dye is pre-dispersed into an aqueous medium and fed to the container.例文帳に追加

ポリスチレン系樹脂粒子を耐圧容器内に入れ、さらに染料と発泡剤を投入してポリスチレン系樹脂粒子に発泡剤と染料とを含浸させて発泡性ポリスチレン系着色樹脂粒子を製造する方法において、前記染料がＳｏｌｖｅｎｔＢｌｕｅ７８を含有し、該染料を水性媒体に予め分散させて投入することを特徴とする発泡性ポリスチレン系着色樹脂粒子の製造方法。 - 特許庁