Plastics are synthetic or natural polymer resin as the main material. After addition of various additives, at a certain temperature and pressure is pump spray bottles malleable, a class of materials which can be fixed shape after cooling. Natural or synthetic polymeric resin molecules in the molten state, and the uniform distribution around the molecular process is called plasticizing additives have already reached this process is called plastics, and has not reached yet to be cheap lip gloss containers considered plasticized. Plastic packaging is one of the four packaging materials: paper and paperboard accounted for 30%, 25% plastic, 25% metal, glass accounted for 15%.
2 Introduction
Plastic boxes are PVC / PET / PP / PS and other materials for transparent folding boxes, cylinders, heaven and earth covered boxes, hand bags, Elevators coupon and other related plastic products, can be UV offset printing, screen printing, hot stamping / silver, frosted and other airless bottles printing effects, improve customer product attractiveness, increase product sales.
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