The Double Die Head Two-Color Striped Film Blowing Machine Set is composed with two screw stems and cylinder with one die head, it adopts the device of two different plastic materials, which can blow different kinds of striped vest bags (shopping bag), it can get colorful bags without printing, with such features as beautiful colors, average stripe, logical structure, advanced technology, even rewinding and high output. 　This machine set is used for blowing Low-density polyethylene (LDPE) and high-density polyethylene (HDPE) plastic film to make various vest bags and flat-rim bags which have been widely used for packing in the food industry, garment industry and textile industry etc.