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Many familiar plastic food containers are manufactured with injection molding. In addition to design, recent food containers are required to have light-blocking effect and gas barrier property depending on their contents. With the conventional production process, a container was formed with injection molding, then a label was affixed to the molded container. Recently, in-mold label molding, in which a printed label is inserted in a die before injection molding, has also been established. Since the production man-hours can be reduced with this molding method, the reduction of the logistic cost at the plant, facilitation of plant management, and high space efficiency can be achieved. The in-mold label molding requires a die, label insert equipment, and an injection molding system, and each of these devices has a characteristic performance and function. The label is specially designed to improve the above-mentioned light-blocking effect and gas barrier property.
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