It is well known that white matter tends to absorb slightly the blue light in visible light, which t...
Pigment is a fine, powdered, colored substance that is generally insoluble in water, oil, and solven...
The most common inorganic compound of colour are, in fact, pigments. The dispersity, oil absorption...
Plastic has many advantages, not only affordable and easy to use. However, with the development of s...
The recycling of waste plastic products, according to the stage, respectively, is the crushing of pl...
The optical brightening agent or fluorescent whitening agent can absorb the invisible ultraviolet li...