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Surface sizing and dyeing process of colored dust-free paper

A technology of surface sizing and dust-free paper, applied in the direction of adding paper, water repellent, etc., can solve the problems of poor dyeing effect, unbeautiful appearance color, single dye, etc., achieve beautiful color, avoid environmental impact, dyeing uniform effect

Active Publication Date: 2015-12-09
WEIFANG HENGLIAN SPECIALTY PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The applicant, Weifang Henglian Coated Paper Co., Ltd., applied for an invention patent with the patent name "a papermaking process for dust-free paper" and application number 20810016591.6 on June 13, 2008. The method includes surface sizing of dust-free paper Dyeing process steps, but the disadvantages of this process are: the dye is single, the dyeing effect of the prepared product is not good, the appearance color is not beautiful, and the color sense is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of dye solution

[0029] Dilute 610 grams of direct light fast turquoise blue and 275 grams of direct light fast yellow with a weight ratio of 2.218:1, dilute with 60-62 kg of water, stir well, and make a dye solution for later use.

[0030] 2. Preparation of surface sizing solution

[0031] Put clean water in the surface sizing dissolving tank to 1 / 2 of the dissolving tank, start stirring, and slowly add oxidized starch. The concentration of oxidized starch solution in the surface sizing dissolving tank is 5.0%, and the steaming gelatinization temperature is 95-100°C , keep warm for 15-20 minutes, add water to cool down to 70-75°C, add surface sizing agent, the amount added accounts for 0.25% of the surface sizing solution. Finally, add starch hardener, the concentration of starch hardener: 49-51%, accounting for 0.15% of the surface sizing solution, stir well, keep the temperature at 70-75°C for half an hour, and prepare the surface sizing solution.

...

Embodiment 2

[0040] 1. Preparation of dye solution

[0041] Dilute 620 grams of direct light fast turquoise blue and 280 grams of direct light fast yellow with a weight ratio of 2.214:1, dilute with 60-62 kg of water, stir well, and make a dye solution for later use.

[0042] 2. Preparation of surface sizing solution

[0043] Put clean water in the surface sizing dissolving tank to 1 / 2 of the dissolving tank, start stirring, and slowly add oxidized starch. The concentration of oxidized starch solution in the surface sizing dissolving tank is 5.0%, and the steaming gelatinization temperature is 95-100°C , keep warm for 15-20 minutes, add water to cool down to 70-75°C, add surface sizing agent, the amount added accounts for 0.25% of the surface sizing solution. Finally, add starch hardener, the concentration of starch hardener: 49-51%, accounting for 0.15% of the surface sizing solution, stir well and keep the temperature at 70-75°C for half an hour; the surface sizing solution is prepared....

Embodiment 3

[0052] 1. Preparation of dye solution

[0053] Dilute 1060 grams of direct light fast turquoise blue and 3800 grams of direct light fast yellow with a weight ratio of 1:3.585, dilute with 60-62 kg of water, stir well, and make a dye solution for later use.

[0054] 2. Preparation of surface sizing solution

[0055] Put clean water in the surface sizing dissolving tank to 1 / 2 of the dissolving tank, start stirring, and slowly add oxidized starch. The concentration of oxidized starch solution in the surface sizing dissolving tank is 5.0%, and the steaming gelatinization temperature is 95-100°C , keep warm for 15-20 minutes, add water to cool down to 70-75°C, add surface sizing agent, the amount added accounts for 0.25% of the surface sizing solution. Finally, add starch hardener, the concentration of starch hardener: 49-51%, accounting for 0.15% of the surface sizing solution, stir well, keep the temperature at 70-75°C for half an hour, and prepare the surface sizing solution. ...

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PUM

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Abstract

The invention relates to a papermaking dyeing process, in particular to a color dust-free paper surface sizing and dyeing process, the steps of which include the preparation of surface sizing liquid, the preparation of dye liquid, the addition of dye liquid and dyeing production. Compared with dyestuffs, color dust-free paper of various colors can be obtained. The invention has the characteristics of simple technological process, reduced environmental pollution, and reduced water consumption. The dyeing process has low production cost, smooth paper surface, good uniformity, and beautiful.

Description

technical field [0001] The invention relates to a papermaking dyeing process, in particular to a color dust-free paper surface sizing and dyeing process. Background technique [0002] Color dust-free paper is a new type of industrial and civil paper developed along with the electronics industry, semiconductor industry, precision instrument industry, and pharmaceutical packaging industry. It is mainly used in the electronics industry, semiconductor industry, precision machinery industry, photo industry, pharmaceutical industry and other environments that require a high degree of cleanliness. It is used for printing, packaging, and data terminal output paper in dust-free operating environments. [0003] At present, there are two main processes for producing colored dust-free paper in China. One is to add dyes to the pulp to produce colored dust-free paper. It is beneficial to environmental protection; the other is to dye the surface of the white dust-free paper through the gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/28D21H21/16
Inventor 杨振永陈世民于新明曲秀荣孙秀丽庄子祯
Owner WEIFANG HENGLIAN SPECIALTY PAPER