Cosmetic packaging bottles are mostly made of PP, PET, ABS, etc. Among them, the PP material is high polymer polypropylene, and plastic is a high molecular compound. It is non-toxic, harmless, and odorless. It has good heat resistance, cold resistance, and good chemical stability. Not easy to change. Milky white translucent, smooth, non-greasy; PP bottles are softer than PET, easier to pinch, and less transparent than PET, so some opaque shampoo bottles are more commonly used (easy to squeeze).

    The PP material uses the masterbatch produced by a specialized manufacturer (a particle with a high color concentration composed of a colorant, a carrier resin, and a dispersant). It has a good coloring effect, and the color masterbatch is directly added to the product during the production process of PP plastic. After stirring, it can enter the next process normally, and the finished product will have color. PET is polyethylene terephthalate, which belongs to thermoplastic polyester. It has a smooth and shiny surface, can resist friction, and has good dimensional stability and high hardness, but it is not resistant to hot water soaking and alkali resistance. The material is environmentally friendly, with high barrier properties, lightweight, unbreakable properties, chemical resistance, and strong transparency. It can be made into pearlescent, colored, magnetic white, and transparent. It is widely used in gel water. PET has high transparency, and the bottle body is soft and can be pinched but harder than PP.

    Compared with PET, PETG has a higher transparency, better chemical resistance, better oil resistance, and better weather resistance (yellowing) performance than PET.