Nowadays, the disposable tableware represented by the paper cup has entered the life of the people, and its security problems are also closely watched. The state stipulates that disposable paper cups cannot be made from recycled waste paper and can not be added with fluorescent bleach. But many paper cups are used in violation of the required recycling paper, adding a large amount of fluorescent bleach to make it white, and adding some industrial calcium carbonate and talcum powder to increase its weight. In addition, in order to high temperature, a layer of film paper, paper cups with persons to be elected by the regulation of standard non-toxic polyethylene, but some manufacturers with polyethylene or used in industry come from medical waste, chemicals, packaging waste plastics instead. HZH disposable paper cup is divided into three kinds: one is made of white card paper, which is mainly used for drying food such as chips and popcorn, which cannot hold water. The second is waxed paper cup, its thick, waterproof, but not food temperature 40 ℃; The third kind is the paper plastic cup, namely the outer wall with a layer of paper, the inner wall coated a layer of coated paper, waterproof and oil proof. The quality of disposable paper cups can be distinguished by "one look at two smells". Look at the name, address, date of production of the production company on the package, and look at the light. If there is blue or impurity, it is better not to buy. 2 smell of acrid smell; Three feels soft, may be inferior product. When using a disposable paper cup, it is best to use boiling water to press the paper cup to make the harmful substance evaporate fully.