Producing method for bright yellow anti-myopia health-care paper

Abstract

The invention relates to a method for manufacturing bright yellow anti-myopia health care paper, which belongs to the technical field of papermaking. In this method, wheat straw is first crushed, sodium sulfite, sodium hydroxide and anthraquinone are added to the wheat straw fiber, and mixed thoroughly, the above-mentioned mixture is boiled in water to form a pulp slurry, and the cooked slurry is sieved to remove coarse impurities ; Add liquid chlorine, sodium hydroxide and sodium hypochlorite to the cooked slurry, heat to bleach the pulp, pulverize the slurry so that the degree of knocking is 30; add alkaline bright yellow and acid purple to the slurry , aluminum sulfate, rosin glue, dithionite oil, etc., add water to dilute the pulp to adjust the color of the pulp, and spread the pulp on the forming wire according to the thickness requirements of the finished paper, and heat and dry. The health care paper prepared by the method of the invention has bright yellow color, which is beautiful but bright and does not hurt eyes. The surface of the paper is smooth, and it has good water and oil resistance, and its physical strength and surface strength have reached the standard of writing paper.

Description

technical field [0001] The invention relates to a method for manufacturing bright yellow anti-myopia health care paper, which belongs to the technical field of papermaking. Background technique [0002] Traditional writing or printing paper is generally white in appearance. In order to make white paper more beautiful, or suitable for some special purposes, it is generally necessary to add a large amount of fluorescent whitening agent and blue and purple dyes to the paper pulp to improve the brightness and aesthetics of the paper. The disadvantage of the existing paper is that under ordinary light, the reflected light generated from the paper strongly irritates the eyes of the user, easily makes the user feel visual fatigue, and leads to an increase in the incidence of myopia. Moreover, the whiteness of the raw pulp of traditional white paper is required to be 70-75%. Therefore, in the papermaking process, the amount of pulp bleaching agent is high, and the chemical reaction...

AI Technical Summary

Problems solved by technology

The disadvantage of the existing paper is that under ordinary light, the reflected light generated from the paper strongly stimulates the eyes of the user, easily makes the user feel visual fatigue, and leads to an increase in the incidence of myopia

Moreover, the whiteness of the raw pulp of traditional white paper is required to be 70-75%. Therefore, in the papermaking process, the amount of pulp bleaching agent is high, and the chemical reaction is violent, which increases the difficulty of process control.