Colored paper making and coloring equipment and method

Abstract

The invention discloses colored paper making and coloring equipment and method. The equipment comprises a rack, a water squeezing main rotating smooth roller, a water squeezing rubber roller, an uppercoloring smooth roller, an upper coloring rubber roller, an upper coloring rotating smooth roller, an upper dye tank, a lower coloring rotating rubber roller, a lower coloring smooth roller, a lowercoloring rubber roller, a lower dye tank, a tensioning roller, a transmission blanket, a power device, a dye recovery tank, a dye recovery storage tank, a dye conveying pump and a dye storage tank. The invention further comprises a coloring method. By utilizing the equipment and method, the coloring dye cost is reduced by 40%, the colored paper papermaking sewage treatment cost is reduced by 70%,most of papermaking sewage can be recycled, water resources are saved, in addition, the coloring uniformity effect is better, the application range is wider, and more colored paper with different colors and product quality requirements can be produced.

Description

technical field [0001] The invention relates to a coloring equipment and a coloring method for colored paper making. Background technique [0002] The traditional method of coloring in the paper industry is: during the pulping process, the dye dissolved in water is directly added to the beating tank, and the pulp is colored with water as the carrier, and then after pulping, papermaking, pressing, drying, finishing, Paper collection and other processes are made into colored paper. This traditional papermaking method must use a large amount of water and dyes when making pulp. On the one hand, it will cause a lot of waste of dyes. On the other hand, a large amount of dyed pulping water must go through decolorization, phosphorus reduction, and removal. Papermaking wastewater treatment processes such as nitrogen and COO reduction can be reused or discharged up to standard, which greatly increases the difficulty of papermaking wastewater treatment and the cost of sewage treatment...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method that can not only reduce the waste of dyes in the manufacture of colored paper and reduce the cost of sewage treatment, but also has uniform coloring, and can produce different colors and product quality. Required colored paper papermaking (wet paper) coloring equipment and coloring methods

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