Hot runner mold for three-layer molding.

摘要

A hot runner mold in which a nozzle tube (5) and a nozzle cap (6) are used to constitute two resin passages (A,B) and a hot runner nozzle having a double construction so that injection and filling of two kinds of different resins may be performed positively even in the case where a number of synthetic resin molded articles of a three-layer construction comprising an inner layer, an outer layer and an intermediate layer are obtained by the use of a hot runner mold.