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

A manufacturing method and technology for preventing myopia, applied in the field of papermaking, can solve the problems of visual fatigue, strong stimulation of reflected light, violent chemical reaction, etc., and achieve the effect of reducing the type and dosage, reducing the cost of papermaking, and good visual effect.

Inactive Publication Date: 2005-02-23
高立明
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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
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Method used

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Embodiment Construction

[0026] The manufacturing method of the bright yellow anti-myopia health care paper proposed by the present invention selects basic dyes, uses aluminum sulfate as a coloring precipitant, and uses sodium dithionite as a color-fixing agent to ensure the durability of the color. Because the present invention has lower requirements on the whiteness of raw paper pulp, which is 55-60%, a three-stage bleaching process of alkalization-chlorination-hypochlorite supplementary bleaching is adopted, and the chemical reaction in the bleaching process is relatively mild, so that The papermaking process is easy to control.

[0027] The following is an embodiment of the present invention:

[0028] Wheat straw is pulverized so that the fiber length is about 20 centimeters, sodium sulfite, sodium hydroxide and anthraquinone are added to the wheat straw fiber, and fully mixed, the addition amount accounts for the weight percentage of wheat straw: sodium sulfite 8%, sodium hydroxide 4%, Anthraqui...

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Abstract

This invention refers to a kind of peak yellow health-care paper protecting from myopia, and its preparation. The process includes crushing wheat stalk, mixing sodium sulfite, sodium hydroxide and anthraquinone with wheat stalk fibers, steam-boiling the said mixture in water to form paper pulp materials, sifting out them to remove impurities, adding liquid chlorine, sodium hydroxide and sodium hypochlorite into them, heating to bleach pulp materials, pulverizing pulp materials; Adding alkali peak yellow, acid violet, aluminum sulphate, rosin glue, dithionite oil etc into pulp materials, diluting paper pulp with water in order to adjust colour, putting paper pulp on shaped net according to meet finished paper thickness, heating and drying to get products. This health-care paper is peak yellow, pretty and without lost fresh and hurt eyes. Its surface is smoothness, water tolerance and oil tolerance, and physical strength and surface strength reaching the write paper standard.

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...

Claims

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Application Information

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IPC IPC(8): D21H21/28D21H27/00
Inventor 高福春高立明
Owner 高立明
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