In addition to the above described several kinds of pulp, there are straw pulp, reed pulp, bagasse pulp, bamboo pulp, cotton pulp, hemp pulp and synthetic pulp, etc.
We all know that, the black paper card are widely used in the packaging industry and well sold in the prevailing market. However, how many persons really know the categories of the black paper card? Now, let us introduce the categories and grades of black paper card in details for you.
Many customers don't know how to keep good quality of black paper cards in the storage, especially in the rainy season or wet environment. Now the following are some tips for you.
When CMY “primaries” are combined at full strength, the resulting “secondary” mixtures are red, green and blue. Mixing all three gives an imperfect black.
Black paper board with grey back Gsm :180-600gsm , over 650gsm can product by laminated . Usage : Laminated for black paperboard ,Photo Frame , boxes . etc.