Located multicolour anti false coated white paperboard and production process thereof
A technology of white cardboard and coating, which is applied in the direction of paper, papermaking, fiberboard, etc., can solve the problems of being unable to prevent counterfeiting and being easily counterfeited, and achieve the effect of intuitive anti-counterfeiting identification, easy identification and good quality
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings: the positioning multi-color anti-counterfeiting coated white paperboard of the present invention, it at least consists of face pulp, core pulp and base pulp to form a multi-layer pulp through a paper machine to make a single-faced white paperboard and through a paper machine. The surface is coated, and at least one pigment is spray-coated on at least one layer of the multi-layer paste and compounded in the middle of the multi-layer paste. The multi-layer slurry also includes at least a lining slurry, and the multi-layer slurry is composed of a face slurry 1, a lining slurry 2, a core slurry 3 and a base slurry 4, figure 1 Five layers of paste are shown, and in other embodiments, there are at least three or more layers of paste.
[0019] At least one layer of the multi-layer slurry is sprayed with at least two colors of pigments, figure 1 In the process, pigments of di...
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