Plastic has many advantages, not only affordable and easy to use. However, with the development of science and technology, we gradually found that the harm of plastic to people and the natural environment can not be ignored, in order to avoid the development of this situation.

The most common inorganic compound of colour are, in fact, pigments. The dispersity, oil absorption, covering power, coloring power and light resistance of the pigment and its film have great influence on the properties of the paint and its film.

Pigment is a fine, powdered, colored substance that is generally insoluble in water, oil, and solvents, but can be uniformly dispersed.

It is well known that white matter tends to absorb slightly the blue light in visible light, which to some extent causes the lack of blue color, making it slightly yellow and old. Fluorescent brighteners are somehow dyed to a certain whiteness of textile, paper, plastic, detergent and other substrat......

Types of optical brighteners/fluorescent whitening agent

PET plastic is the abbreviation of Polyethylene terephthalate, PET or RPET. Poly Terephthalic acid based plastics, including Polyethylene terephthalate and polybutylene terephthalate. Polyethylene terephthalate also known as polyester resin.