Black paperboard and its production method

Abstract

This invention relates to a black paperboard and its product method, the character of the black paperboard as follows: the surface and the back of the black paperboard all have coated layers, the surface layer is the white coated layer, the back layer is the black coated layer, the coated component and the weight percent of the surface coated layer is that, the porcelain clay is 20-97 %, the ultra-fine calcium carbonate is 2-80%, the dispersing agent is 0.2-1.2%,the emulsion is 1-25%,the resist aqua is 0.5-1.5%; the oated component and the weight percent of the back coated layer is that, the black pigments is 73.8 -98.3%,the bonding agent is 0.2-1.2%, the emulsion is 1-25%, the resist aqua is 0.5-1.5%. This invention discloses the problems of the conventional method, which has the fiber pulp dyeing problem and avoiding dyeing pollution problem, and it satisfies the need that the cigarette casing needs foodstuff contacting.

Description

Technical field: [0001] The invention relates to the technical field of papermaking, in particular to black cardboard and a production method thereof. Background technique: [0002] Although there are many types of papers of various qualities, most of them are volatile in color and do not have anti-counterfeiting functions. The paper used for cigarette pack cards in the market requires stable color fastness and Gravure printing and anti-counterfeiting features, the paper of the prior art can no longer meet the demand of the market for anti-counterfeiting cigarette pack cards and other high-grade packages. Invention content: [0003] The object of the present invention is to provide a kind of black cardboard and its production method, this kind of black cardboard has the characteristics of stable color fastness and anti-counterfeiting. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a kind of black cardboard, which...

AI Technical Summary

Problems solved by technology

[0002] Although there are many types of papers of various qualities, most of them are volatile in color and do not have anti-counterfeiting functions. The paper used for cigarette pack cards in the market requires stable color fastness and Gravure printing and anti-counterfeiting features, the paper of the prior art can no longer meet the market demand for anti-counterfeiting cigarette pack cards and other high-end packaging