Plastic containers as the main form of packaging of liquid chemical product, benefit from the rapid development of liquid detergent, will expand several kinds of materials such as PET, PE, PVC and PP plastic containers used in the field of cosmetic. At the same time, the transparent packaging is also an important development trend of supplies, currently both cleaning supplies and personal care products and cosmetics packaging have tend to be more transparent. PET bottle has great strength, light quality, good transparency, the use of PET bottle high transparency, can maximum limit display the look and feel of the contents and quality, for the product to provide a good interface and consumers \"communication\". Therefore, PET bottle has increasingly become the enterprise preferred packaging container of supplies, at present, many well-known enterprises such as procter & gamble, love group, blue moon and white have began to use PET bottle packaging such as shampoo, shower gel, skin care products, washing supplies and toilet water, and other products, PET plastic packaging container is gradually replace part of the traditional plastic packaging materials. With China's chemical products industry, especially the continuous progress of liquid chemical product packaging transparent, PET bottle in the field of cosmetic packaging has very extensive application prospect in the future.