The pla paper cup has a stylish print on the body, safe and non-toxic, simple and stylish, suitable for many occasions. PLA paper cups use polylactic acid. Compared with traditional plastics, PLA paper cups can be degraded into CO2 and H2O by microorganisms and light. Its degradation products are non-toxic and harmless, and will not pollute the environment. The monomer for the production of polylactic acid is lactic acid, and lactic acid can be produced by fermentation of crops or agricultural by-products such as wheat, rice and sugar beet. Therefore, the raw materials for the production of polylactic acid are renewable. As an emerging biodegradable material, polylactic acid has a wide range of applications.