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A kind of anti-myopia paper and preparation method thereof

A technology of myopia paper and dyeing solution, which is applied in the field of papermaking technology, can solve the problems of poor dispersibility of solid dyes, spot coloring of anti-myopia paper, uneven dyeing, etc., and achieve the effects of reducing visual fatigue, less human eye irritation, and uniform coloring

Active Publication Date: 2022-02-01
HUBEI HUAHAI FIBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current preparation process of anti-myopia paper, solid dyes are usually directly put into or dissolved in solid dyes for toning, but solid dyes often have poor dispersibility, which causes the problem of uneven dyeing, especially when feeding in large quantities. The anti-myopia paper often has spots or uneven coloring

Method used

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  • A kind of anti-myopia paper and preparation method thereof
  • A kind of anti-myopia paper and preparation method thereof
  • A kind of anti-myopia paper and preparation method thereof

Examples

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preparation example Construction

[0032] In the current preparation process of anti-myopia paper, solid dyes are usually directly put into or dissolved in solid dyes for toning, but solid dyes often have poor dispersibility, resulting in the problem of uneven dyeing, especially when feeding in large quantities. Out of the anti-myopia paper often appear spots or uneven coloring.

[0033] In view of this, the present invention proposes a kind of anti-myopia paper, and described anti-myopia paper comprises slurry, brilliant yellow dyeing liquid and brilliant blue dyeing liquid, wherein, the volume ratio of described brilliant yellow dyeing liquid and described brilliant blue dyeing liquid is (19.5~20.5): 1; the bright yellow staining solution comprises the following raw materials: 15~30 (v / v)% hydrochloric acid solution, 1-amino-4-sulfonic acid-6-acetylamino-naphthalene, sodium folinate and Barbituric acid; the Brilliant Blue staining solution includes the following raw materials: blue matrix, acetic acid and wat...

Embodiment 1

[0058] Add acetic acid and water to the blue matrix, heat to 50°C, and stir until dissolved. When no particles are detected, collect the brilliant blue stock solution and adjust the pH to 1.0. Add water to dilute it into a brilliant blue staining solution with a mass concentration of 15%. ,spare.

[0059] After dissolving 1-amino-4-sulfonic acid-6-acetylamino-naphthalene (1mol) in water, add 15 (v / v)% hydrochloric acid solution (containing HCL1mol), and stir until 1-amino-4-sulfonic acid- After the 6-acetylamino-naphthalene is completely dissolved, add sodium folinate solution at 5°C, and test the solution with starch potassium iodide test paper to keep the test paper slightly blue. The diazotization reaction is for 3 hours, and the diazonium salt solution is obtained after the reaction is completed; Pressure filter the diazonium salt solution, discard the filtrate, and keep the filter cake; add barbituric acid to the filter cake and adjust the pH to 7.0-7.5, and perform a cou...

Embodiment 2

[0064] Add acetic acid and water to the blue matrix, heat to 40°C, and stir until dissolved. When no particles are detected, collect the brilliant blue stock solution and adjust the pH to 2.0, add water to dilute it into a brilliant blue staining solution with a mass concentration of 12%. ,spare.

[0065] After dissolving 1-amino-4-sulfonic acid-6-acetylamino-naphthalene (1mol) in water, add 30 (v / v)% hydrochloric acid solution (containing HCL1.2mol), and stir until 1-amino-4-sulfonic acid After acid-6-acetylamino-naphthalene is completely dissolved, add sodium folinate solution at 5°C, and test the solution with starch potassium iodide test paper to keep the test paper slightly blue. The diazotization reaction is 3 hours, and the diazonium salt is obtained after the reaction is completed. solution; press filter the diazonium salt solution, discard the filtrate, and keep the filter cake; add barbituric acid to the filter cake and adjust the pH to 7.0-7.5, and perform a couplin...

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Abstract

The invention discloses an anti-myopia paper and a preparation method thereof, and relates to the technical field of papermaking technology. The anti-myopia paper includes slurry, brilliant yellow dyeing solution and brilliant blue dyeing solution, wherein, the volume ratio of the brilliant yellow dyeing solution and the brilliant blue dyeing solution is (19.5~20.5):1; The staining solution includes the following raw materials: 15-30 (v / v)% hydrochloric acid solution, 1-amino-4-sulfonic acid-6-acetylamino-naphthalene, sodium folinate and barbituric acid; the brilliant blue staining solution includes The following raw materials: blue matrix, acetic acid and water. In the present invention, by sequentially adding two kinds of solution-type brilliant yellow and brilliant blue dyeing liquids into the slurry, the prepared paper has the advantages of uniform, natural, consistent coloring and no color points.

Description

technical field [0001] The invention relates to the technical field of papermaking technology, in particular to an anti-myopia paper and a preparation method thereof. Background technique [0002] Because the commonly used white paper has white full-frequency reflection, it is irritating to the eyes. After writing or reading for a long time, it will cause visual fatigue of the user and cause vision loss. With the enhancement of people's health awareness, in order to protect eyes and prevent myopia, anti-myopia paper came into being. The anti-myopia paper can reflect a specific spectrum color light, which matches with other color lights, and the contrast is suitable, so that it can effectively improve the impact of white full-frequency light on vision and achieve the effect of preventing myopia. [0003] When preparing anti-myopia paper, it is necessary to dye the paper so that the anti-myopia paper presents a specific color. In the current preparation process of anti-myopi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/00D21H21/28D21H11/00D21H11/02D21C1/02D21B1/16D21H21/16D21H19/14
CPCD21H27/00D21H21/28D21H11/00D21H11/02D21C1/02D21B1/16D21H21/16D21H19/14
Inventor 张平安曾洪波薛超陈苗朱大竹
Owner HUBEI HUAHAI FIBER TECH
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