Anti-scratching highlight RC printing paper and preparation method thereof

An anti-scratch, photographic paper technology, applied in reproduction/marking methods, coating, printing, etc., can solve the problems of complex process, high price, low yield, etc., and achieve the effect of low cost, good hue and good hardness

Inactive Publication Date: 2018-02-23
GUANGDONG GLM DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latter utilizes the physical properties of nanoparticles that do not scatter light to improve the scratch resistance of the coating while retaining the gloss of the coating to the greatest extent. The disadvantage is that the key component nano-silica is expensive and needs to be used The preparation process of multi-layer co-coating is complicated and the yield is low

Method used

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  • Anti-scratching highlight RC printing paper and preparation method thereof
  • Anti-scratching highlight RC printing paper and preparation method thereof

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preparation example Construction

[0024] The preparation method of anti-scratch high-gloss RC photographic paper of the present invention specifically comprises the following steps:

[0025] (1) Provide the original high-gloss RC paper, the paper base is made of whole wood pulp or mixed wood pulp, and then coated with polyethylene film on both sides. The glossiness of high-gloss RC paper is higher than 65% (60°, GB / T 8941-2007).

[0026] (2) Preparation of ink absorbing layer coating

[0027] Preparation of the dispersion: under stirring, slowly add 100 parts of nano-alumina, 0.5-1.0 parts of pH regulator and 0.5-1.0 parts of silane coupling agent into deionized water, then slowly increase the stirring speed to above 2000r / min, Disperse at high speed for 30 minutes to make a dispersion with a solid content of 20% to 30%.

[0028] Aging of the dispersion: place the above-prepared dispersion in a water bath at 60±5°C for more than 8 hours to ensure sufficient hydrolysis of the silane coupling agent.

[0029] ...

Embodiment 1

[0045] High-gloss RC paper adopts all-wood pulp short-fiber RC paper coated with polyethylene film on both sides, and the basis weight of the paper is 165g / m 2 , gloss 68% (60°, GB / T 8941-2007).

[0046] Ink absorbing layer coating: 100 parts of nano-alumina, 10 parts of adhesive, 0.5 part of pH regulator, 0.5 part of silane coupling agent, 20 parts of defoaming agent, 0.2 part of leveling agent, and 0.2 part of crosslinking agent. The binder is polyvinyl alcohol, the pH regulator is 10% nitric acid aqueous solution, the defoamer is isopropanol, and the leveling agent is a fluorine-modified acrylic acid copolymer. The cross-linking agent described is boric acid.

[0047] Use a screw gap type scraper to coat the ink-absorbing layer paint on the surface of RC paper, heat and dry to form an ink-absorbing layer, and the coating amount is 25g / m 2 .

[0048] Anti-scratch gloss coating: 40 parts of fine transparent powder, 60 parts of nano-alumina, 10 parts of adhesive, 1.0 part o...

Embodiment 2

[0051] High-gloss RC paper adopts all-wood pulp short-fiber RC paper coated with polyethylene film on both sides, and the basis weight of the paper is 190g / m 2 , glossiness 67% (60°, GB / T 8941-2007).

[0052] Ink absorbing layer coating: 100 parts of nano-alumina, 15 parts of adhesive, 0.5 part of pH regulator, 0.5 part of silane coupling agent, 20 parts of defoaming agent, 0.2 part of leveling agent, and 0.2 part of crosslinking agent. Described binding agent is that polyvinyl alcohol and styrene-butadiene latex are mixed in the ratio of 5:1, and described pH adjusting agent is 10% nitric acid aqueous solution, and described antifoaming agent is isopropanol, and described leveling agent It is a fluorine-modified acrylic copolymer, and the cross-linking agent is boric acid.

[0053] Use a screw gap type spatula to coat the ink-absorbing layer paint on the surface of RC paper, heat and dry to form an ink-absorbing layer, and the coating amount is 26g / m 2 .

[0054] Anti-scra...

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Abstract

The invention discloses anti-scratching highlight RC printing paper and a preparation method thereof. The preparation method comprises the steps that highlight RC paper is coated with an ink absorption layer coating, and pre-coating RC printing paper is obtained after drying is performed; then, the pre-coating RC printing paper continues to be coated with an anti-scratch glossy layer coating, andthe anti-scratching highlight RC printing paper is obtained after drying; the ink absorption layer comprises nanometer aluminum oxide, an adhesive, a pH regulator, a silane coupling agent, a defoamingagent, a flatting agent and a cross-linking agent; the anti-scratch glossy layer comprises micro transparent powder, nanometer aluminum oxide, an adhesive, a pH regulator, a silane coupling agent, adye fixing agent, a flatting agent and a cross-linking agent. According to the anti-scratching highlight RC printing paper, the glossiness is higher than 50%, the surface hardness reaches up to 4H tothe minimum, the excellent scratch resistance is achieved, and the high glossiness and the imaging effect close to traditional photos are achieved.

Description

technical field [0001] The invention belongs to the field of color inkjet printing media, and in particular relates to a preparation method of anti-scratch high-gloss RC photographic paper. technical background [0002] The rapid development of the world's information industry has effectively stimulated the inkjet printing industry and the demand for inkjet printing media. After recent years of development and integration, people have higher and higher requirements for the variety and quality of medium and high-end media, and color inkjet printing media with a level close to traditional photo imaging has become a hot spot in research and development. Among them, microporous high-gloss RC photo paper has attracted extensive attention from academia and industry because of its excellent comprehensive performance. [0003] However, ordinary microporous high-gloss RC photo paper has poor scratch resistance, and is easily scratched by sharp objects during production and use, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/52
CPCB41M5/52B41M5/5272B41M5/529
Inventor 徐明智周广滨孙静黄偕祺刘婷婷张洪领陈伟煜
Owner GUANGDONG GLM DIGITAL TECH
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