Hollow board is made by extruding polypropylene raw materials mixed with polyethylene raw materials through a hollow board production line. After the hollow board is formed, black and white monochrome hollow board can be screen printed according to customer needs, or colorful hollow board can be screen printed. UV printing is a highly reliable process. UV inks can be considered environmentally friendly because they do not produce volatile organic compounds (VOCs) and solvent evaporation issues. UV printed products have a very high gloss effect and sometimes have a comprehensive effect of scratch and scratch resistance.