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Weatherproof and high-gloss papermaking dye and preparation method thereof

A high-gloss and weather-resistant technology, applied in the direction of paper, pigment-containing coating, pigment/shading agent addition, etc., can solve the problems of unsatisfactory matching and proportioning, unsatisfactory paper decoration effect, affecting paper smoothness, etc. Achieve rich color expression levels, improve surface strength and optical properties, and improve printing gloss.

Inactive Publication Date: 2019-01-04
ANHUI ZHONGYA PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing packaging paper is to color the paper by coating the surface of the paper with dyes. The matching and proportioning of the components of the dyes are not ideal, the aggregation phenomenon between the pigment particles is serious, and the dispersion is difficult, which seriously affects the smoothness of the paper. degree, the decorative effect of the paper is not ideal, the paper is not glossy, the dyed paper is easy to fade after a period of use, and the colored paper feels poor and not smooth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this example, the weather-resistant high-gloss papermaking dyes are made of the following percentages of raw materials: 20% modified mica powder, 12% modified calcium carbonate, 10% pearlescent pigment, 5% sodium alginate, hydroxypropyl methylcellulose 2% cellulose, 1% methyl cellulose, 2% whitening agent, 1% water repellent, 1% thickener, and the balance is deionized water;

[0026] Among them, the modification method of the modified mica powder is as follows: Weigh 1.5g of coupling agent and mix it with 30mL ethanol, then adjust the pH value to 6-7 by using oxalic acid aqueous solution to obtain a hydrolyzed coupling agent solution, add 12g of mica powder to into the hydrolyzed coupling agent solution, heated to 60°C for 2 hours, filtered, washed, and dried to obtain modified mica powder;

[0027] Modified calcium carbonate is the calcium carbonate of stearic acid modification, and particle average particle diameter is 100nm, and calcium carbonate is the light calc...

Embodiment 2

[0035] In this example, the weather-resistant high-gloss papermaking dyes are made of the following percentages of raw materials: 35% modified mica powder, 12% modified calcium carbonate, 16% pearlescent pigment, 6% sodium alginate, hydroxypropyl methylcellulose 5% cellulose, 3% methyl cellulose, 4% whitening agent, 3% anti-water agent, 3% thickener, and the balance is deionized water;

[0036] Among them, the modification method of the modified mica powder is as follows: Weigh 1.5g of coupling agent and mix it with 30mL ethanol, and then adjust the pH value to 6.5-7 with aqueous oxalic acid solution to obtain a hydrolysis coupling agent solution, add 12g of mica powder to into the hydrolyzed coupling agent solution, heated to 70°C for 3 hours, filtered, washed, and dried to obtain modified mica powder;

[0037] Modified calcium carbonate is the calcium carbonate of stearic acid modification, and particle average particle diameter is 200nm, and calcium carbonate is the light c...

Embodiment 3

[0045] In this example, the weather-resistant high-gloss papermaking dyes are made of the following percentages of raw materials: 28% modified mica powder, 16% modified calcium carbonate, 13% pearlescent pigment, 9% sodium alginate, hydroxypropyl methylcellulose 3.5% cellulose, 2% methyl cellulose, 3% whitening agent, 2% water repellent, 2% thickener, and the balance is deionized water;

[0046] Among them, the modification method of the modified mica powder is as follows: Weigh 1.5g of coupling agent and mix it with 30mL ethanol, and then adjust the pH value to 5.5-7 with aqueous oxalic acid solution to obtain a hydrolyzed coupling agent solution, add 12g of mica powder to into the hydrolyzed coupling agent solution, heated to 65°C for 2.5 hours, filtered, washed, and dried to obtain modified mica powder;

[0047] Modified calcium carbonate is the calcium carbonate of stearic acid modification, and particle average particle diameter is 150nm, and calcium carbonate is the ligh...

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Abstract

The invention provides weatherproof and high-gloss papermaking dye and a preparation method thereof, and relates to the technical field of paper dye. The weatherproof and high-gloss papermaking dye isprepared from the following raw materials: modified mica powder, modified calcium carbonate, pearlescent pigments, sodium alginate, hydroxypropyl methyl cellulose, methyl cellulose, a whitening agent, a water resisting agent, a thickener and deionized water. The weatherproof and high-gloss papermaking dye is used for paper surface printing and has a good decorative effect on paper, high gloss, bright color and excellent fidelity, dyed paper is not easy to fade after using for a period of time, the dye has good stability, besides, the paper surface is smooth and delicate, good in hand feeling,natural and hard, and the addition of the pearlescent pigments makes the paper colorful and vivid.

Description

technical field [0001] The invention relates to the technical field of paper dyes, in particular to a weather-resistant high-gloss paper dye and a preparation method thereof. Background technique [0002] With the improvement of living standards, people pay more and more attention to aesthetics and taste, and the demand for high-end food and cosmetic packaging paper is increasing, which makes traditional packaging paper unable to meet people's needs, and the quality and color of paper are increasingly popular. valued, [0003] Dye for papermaking is an engineering material that coats the surface of paper and forms a firmly adherent film. Papermaking coating is an important part of coating and processing packaging paper. It is a mixed system composed of pigment dispersion, adhesive and other additives. Good protective effect, improve the printing suitability of paper, and endow the paper with certain special functions such as moisture-proof, water-resistant, and anti-bacter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/28D21H19/38D21H19/40D21H19/52
CPCD21H21/28D21H19/385D21H19/40D21H19/52
Inventor 王君王平亚
Owner ANHUI ZHONGYA PAPER
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