Black and white grid paper is generally used to test the expansion rate of cardboard and hiding power in paint and paint. The Tester paints a layer of paint or paint with a specific thickness on the black and white cardboard, and calculates and evaluates the hiding rate by comparing the amount of the base color through the coating. . The mainstream method of measuring hiding power is the "Unit Area Mass Method". Users with higher requirements generally use high-grade black and white grid paper, while those with lower requirements use black and white grid test boards, a black and white grid style glass plate, and the cost is relatively low.
The strange thing is that the market demand for testing is very high, but there are not many mainstream paperboards on the market. Today, Beibeichao will take you into the production workshop of TQC in the Netherlands to see how the covering power paper is made. , Its "expensive" is where it is expensive.
Please watch the video below:
