1, look at the appearance, if the product appearance rough, forming defects, color, impurities, poor printing quality, it is best not to choose. The appearance of unqualified products will affect the visual experience of consumers, while the appearance is a reflection of internal quality, the appearance of unqualified products are often internal quality is also poor, affecting the use. If the printing quality is not qualified, the appearance will be affected; if the printing quality is not qualified, the color will be faded and other articles will be polluted.

 

2, smell, plastic products have different smell of the main reason is the use of recycled materials and inferior additives. The pungent smell that the product that has different smell sends out can harm the respiratory system of human body, had better not choose.

 

3. Give it a try - some products have bright colors to catch the eye of consumers. In the process of using dark color products with poor quality, the pigments will be precipitated. These pigments are generally industrial pigments. Consumers can check by themselves, the choice of dark color product is qualified: pour a little vinegar on the absorbtion cotton ball, and then contact the food face to wipe 100 times back and forth, if the absorbtion cotton ball dyed with color, that product is not qualified.