A kind of manufacturing method of rapid catalytic dyeing paper

Abstract

The invention discloses a method for manufacturing fast catalytic dyed paper. The method comprises the following steps: (1) stirring the slurry: directly passing the beating bamboo pulp into the pulp tank, stirring, and controlling the temperature of the slurry in the pulp tank to be 20°C-50°C; (2) making the slurry Oxidation of the oxidant: dissolving the oxidizing agent, configuring an aqueous solution, and stirring the reaction; (3) acidification of the slurry: adding hydrochloric acid, nitric acid or citric acid solution, controlling the pH value of the slurry, and stirring to fully react the solution and the slurry; (4) slurry Reduction of the material: add a reducing agent aqueous solution, stir and react; the slurry reaches a bright yellow color, and then add alkaline bright yellow O for coloring, pulping, papermaking, drying, cutting, and packaging. The invention uses a redox catalyst system to make the bamboo pulp turn golden yellow within five minutes, which can greatly reduce the amount of dye used in the yellow paper production process, and at the same time increase the adhesion rate of the dye on the fiber, making the color of the paper more Vibrant and bright.

Description

technical field [0001] The present invention relates to a manufacturing method of rapid catalytic dyeing paper, in particular to a low-cost and high-quality manufacturing method, and the manufacturing method of rapid catalytic dyeing paper can be applied in the field of colored dyed paper, such as wedding ribbon paper and colorful fireworks paper , Ordinary yellow paper and other fields. Background technique [0002] Dyeing paper has developed rapidly in China in recent years, and the domestic demand is relatively large, but the production cost of the product is too high, the color of the product is not bright enough, and the combination of dye and fiber is not sufficient, resulting in a large amount of waste of dye, hindering the health of the dyed paper industry develop. At present, the production of dyed paper mainly adopts the method of adding dyes to achieve the required bright color, but due to the existence of lignin, the color of the product will be dark. At the sam...

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Problems solved by technology

[0002] Dyeing paper has developed rapidly in China in recent years, and the domestic demand is relatively large, but the production cost of the product is too high, the color of the product is not bright enough, the combination of dye and fiber is not sufficient, resulting in a large amount of waste of dye, hindering the health of the dyed paper industry develop

At present, the production of dyed paper mainly adopts the method of adding dyes to achieve the required bright color, but due to the existence of lignin, the color of the product will be dark. At the same time, we know that the coloring principle of dyes is the principle of subtractive color method. The more dyes are added More, the less bright the color will be, and adding too much dye will increase the production cost

[0003] There are also some enterprises that can achieve results through long-term reduction soaking, but the effect of long-term soaking is still not obvious, and it does not meet the requirements of continuous production of enterprises

[0004] The color of existing dyed paper is generally dull, the production cost is high, the amount of dyestuff is large and the utilization is insufficient, causing serious water pollution. This new technology meets the technical requirements of industrial production, the process is simple, and the cost is low. At present, there is no such kind at home and abroad. report on manufacturing method

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