One-side coated white board paper is a kind of positive white and smooth, more for grey board on the back, so also known as Manila board or grey coated white board paper, can also be referred to as grey, white, white, white board paper, white paper board, etc. This paper is mainly used for single color printing is made after cartons used for packaging. Flat piece of white paper is size is 787 mm * 1092 mm, generous size is 889 mm * 1194 mm, drum width 787 mm, 889 mm, 1092 mm and 1194 mm, also can arrange production according to customer need other specifications of the paper. Because fibrous tissue is evenly coated white board paper, surface layer has the packing and the composition of the rubber, and the surface coated with certain coating, and through multiple roll calender processing, so the quality of a material of cardboard more closely, thickness is uniform, the paper generally is white and smooth, with a uniform ink absorbency, surface powder with less wool phenomenon, the paper is strong and has a good degree of folding, its moisture content is in commonly 8%, there is a certain scale, it brings the certain effect to printing. White board paper and coated paper, offset paper, the difference between the halftone paper is paper, degree of heavy, thick paper. Whiteboard paper pulp generally divided into MianJiang ( The surface) , two, three, four layers, each layer of the pulp fiber ratio is different, and the layers of pulp fiber ratio, and according to the quality of the copy paper. The first layer of the surface plasma, which requires high whiteness, have a certain strength, usually by bleached sulphate wood pulp, or with addition of some bleaching chemical straw and paper waste paper pulp; The 2nd is lining, have the effect of isolation layer and core layer, also requires a certain whiteness, usually with 100% mechanical wood pulp or waste paper pulp; light color The third layer for core layer, the main filling effect, in order to increase the thickness of the cardboard, to improve the stiffness, generally USES the mixed waste pulp or straw, this layer is the most thick, quantitative high board commonly used several net trough points several times to hang pulp; The last layer is the bottom, have improve the look of the board, increase strength, prevent curl functions, usually with high rate pulp or better as raw material to manufacture paper with pulp and paper pulp board more than bottom color gray, can also according to the requirements in the production of other background color.
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