Coated paper coating containing nano particle modified adhesive and preparation method thereof

A technology of coated paper and coating, applied in paper coating, pigmented coating, papermaking, etc., can solve the problem that the coating cannot fully meet the printing stress requirements, and achieve the effects of improving optical properties, simple process, and low production cost

Active Publication Date: 2015-05-06
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the printing speed continues to increase, the coating formed by traditional coatings cannot fully meet the printing stress requirements, so it is necessary to continuously develop high-performance coatings to adapt to the increasing printing speed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Kaolin / heavy calcium carbonate 4:1;

[0033] Based on the total amount of heavy calcium carbonate and kaolin,

[0034] Modified styrene-acrylic emulsion 9.0%;

[0035] Sodium hexametaphosphate 0.5%;

[0036] Sodium Carboxymethyl Cellulose 0.8%;

[0037] Water repellant 0.1%;

[0038] Lubricant 0.5%;

[0039] Defoamer 0.2%;

[0040] Ammonia 0.5%.

[0041] According to the above formula, first add sodium hexametaphosphate into water and stir evenly, then add kaolin and heavy calcium carbonate, and stir at 2000 r / min for 30 min, then reduce the stirring speed to 1000 r / min, then add the adhesive nano-calcium carbonate Modified styrene-butyl acrylate emulsion, sodium carboxymethyl cellulose and anti-water agent, defoamer, lubricant, continue to shear and disperse at 1000 r / min for 10 min, adjust the pH to 8.0, and finally, after 200 Mesh sieve is filtered and discharged to obtain coated paper coating.

[0042] Put the base paper flat on the coating machine as requ...

Embodiment 2

[0044] Kaolin / ground calcium carbonate 4:1;

[0045] Based on the total amount of heavy calcium carbonate and kaolin,

[0046] Modified styrene-acrylic emulsion 12.0%;

[0047] Sodium hexametaphosphate 0.5%;

[0048] Sodium Carboxymethyl Cellulose 0.8%;

[0049] Water repellant 0.1%;

[0050] Lubricant 0.5%;

[0051] Defoamer 0.2%;

[0052] Ammonia 0.5%.

[0053] According to the above formula, first add sodium hexametaphosphate into water and stir evenly, then add kaolin and heavy calcium carbonate, and stir for 30 min at 2000 r / min, and then add the adhesive nano-calcium carbonate after the stirring speed is reduced to 1000 r / min Modified styrene-butyl acrylate emulsion, sodium carboxymethyl cellulose and anti-water agent, defoamer, lubricant, continue to shear and disperse at 1000 r / min for 10 min, adjust the pH to 8.0, and finally, after 200 Mesh sieve is filtered and discharged to obtain coated paper coating.

[0054] Put the base paper flat on the coating machine...

Embodiment 3

[0056] Kaolin / ground calcium carbonate 4:1;

[0057] Based on the total amount of heavy calcium carbonate and kaolin,

[0058] Modified styrene-acrylic emulsion 15.0%;

[0059] Sodium hexametaphosphate 0.5%;

[0060] Sodium Carboxymethyl Cellulose 0.8%;

[0061] Water repellant 0.1%;

[0062] Lubricant 0.5%;

[0063] Defoamer 0.2%;

[0064] Ammonia 0.5%.

[0065] According to the above formula, first add sodium hexametaphosphate into water and stir evenly, then add kaolin and heavy calcium carbonate, and stir at 2000 r / min for 30 min, then reduce the stirring speed to 1000 r / min, then add the adhesive nano-calcium carbonate Modified styrene-butyl acrylate emulsion, sodium carboxymethyl cellulose and anti-water agent, defoamer, lubricant, continue to shear and disperse at 1000 r / min for 10 min, adjust the pH to 8.0, and finally, after 200 Mesh sieve is filtered and discharged to obtain coated paper coating.

[0066] Put the base paper flat on the coating machine as re...

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Abstract

The invention relates to a coated paper coating containing a nano particle modified adhesive and a preparation method thereof. The coating dislcosed by the invention is composed of Kaolin, heavy calcium carbonate, modified styrene acrylic emulsion, sodium carboxymethyl cellulose, sodium hexametaphosphate, a water repellent agent, a lubricant, an anti-foaming agent, ammonium hydroxide and water. The preparation method comprises the following steps: firstly, adding the dispersing agent into water and stirring evenly, adding pigment particles, stirring for 30min at speed of 2000r / min, after slowing down the stirring speed to 1000r / min, adding the adhesive nano calcium carbonate modified styrene-butyl acrylate emulsion, water repellent agent, lubricant and anti-foaming agent, continuing to perform shearing dispersion at the speed of 1000r / min for 10min, regulating pH to 8.0, and finally, filtering a coarse material through a 200-mesh screen to get the coated paper coating. The coating obtained by the preparation method has the characteristics of high solid content, low viscosity, good water retention capacity and low production cost.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, and specifically relates to a coated paper coating containing a nanoparticle-modified adhesive and a preparation method thereof. The optical properties and printing suitability of paper are improved by means of the size effect and interface effect of nanocomposite materials. Improve the surface hydrophobicity of paper. Background technique [0002] With the development of the economy and the continuous improvement of people's living standards, the demand for paper products in my country continues to rise, especially the production and consumption of coated paper, which has achieved rapid development in the past ten years. The total production and consumption of my country's paper industry ranks second in the world, but the per capita consumption of coated paper is far behind that of developed countries. Coated paper, that is, coating a layer of paint on the surface of the base pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/38D21H19/40D21H19/58D21H19/52D21H19/64D21H21/06D21H21/12C09D125/14C09D133/08C09D7/12C08F212/08C08F220/18C08F2/26C08F2/30C08F2/44C08K3/26
Inventor 唐艳军张宇杨志远
Owner ZHEJIANG SCI-TECH UNIV
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