South Korea prohibits the use of colored plastic bottles. What is the difference between colorless and colored plastic bottles?

On December 25, 2019, South Korea officially implemented the amendment to the "Resource Recycling Law". On the first day of the implementation of the amendment, the traditional green plastic bottles containing soda and beverages in major Korean supermarkets have disappeared from the sales shelves and replaced with colorless and transparent bottles. South Korea prohibits the use of colored plastic bottles. What is the difference between colorless and colored plastic bottles?

No best answer

1.There may be no difference between colored and colorless plastic bottles in our opinion, and we will not even pay attention to it when buying. However, there are obvious differences in recycling of colored and colorless plastic bottles.
2. The recycling cost of colorless plastic bottles is relatively low, and the recycling rate is higher. After washing, drying, and granulating, they can be reused. As a secondary product, it can be used in spinning, film drawing, engineering plastics, etc.; or through depolymerization, it can be used to prepare raw materials and monomers used in the production of PET for repolymerization.
3.The color of colored plastic bottles will first limit its use, and reuse requires decolorization, and because coloring requires the addition of masterbatch, the masterbatch will affect the performance of the plastic, so the recycling cost and reuse rate are both It is obviously different from colorless plastic.