Recycled plastic particles are mainly classified into grades according to the different raw materials used, as well as the transparency and density toughness characteristics of the processed plastic particles, and are generally divided into grades one, two and three.

Folding primary material
It means that the raw materials used are leftovers that have not fallen on the ground, or are called lower scraps, some are nozzle materials, rubber head materials, etc., and the quality is relatively good, that is, they have not been used. In the process of processing new materials, the remaining small corners, or raw materials of poor quality. The granules processed with these as wool have good transparency, and are plasticized into uniform granules by a granulator. Its quality can be compared with the new material, so it is a first-grade material or a special-grade material.

Folding secondary material
It means that the raw materials have been used once, except for high-pressure granulation. Most of the imported large pieces are used in high-pressure granulation. If the imported large pieces are industrial films, they have not been exposed to wind and sun, so their quality is also very good. The transparency of the granules produced is good. The Jiang Jingguo double-section granulator obtains granules with good brightness, and the surface of the granules is not rough.

Folding tertiary material
It means that the raw materials have been used twice or more times, and the processed granules are not very good in terms of elasticity and toughness. Even after re-plasticizing by the granulator, the usability is relatively poor.