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Barrier coating, preparation method thereof and recyclable paper

A technology of barrier coating and acrylic emulsion, which is applied in coating, papermaking, paper coating, etc., and can solve the problems that materials cannot be recycled and construction is complicated

Active Publication Date: 2022-04-15
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problems that the existing materials cannot be recycled and the construction is complicated

Method used

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  • Barrier coating, preparation method thereof and recyclable paper
  • Barrier coating, preparation method thereof and recyclable paper
  • Barrier coating, preparation method thereof and recyclable paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add 10 parts of PEF-30, 5 parts of hydrogenated polydecene, and 2 parts of BYK-190 into the dispersion tank, heat to 70°C, add 12.5 parts of water to disperse, and cool to room temperature.

[0029] (2) 70 parts of Add to the above blend under stirring condition, add 0.3 parts of BYK-346 and 0.2 parts of AIRASE-5355 in turn, and then discharge.

[0030] Substrate: 250g / m 2 White cardboard, coating method: knife coating, drying condition: 100℃, 30s. Coating amount: 12g / m 2 .

Embodiment 2

[0032] (1) 5 parts of Dagot-90, 5 parts of hydrogenated polydecene, 1 part Add HLD-69 into the dispersion tank, heat to 90°C, add 8.7 parts of water to disperse, and cool to room temperature.

[0033] (2) put 80 copies of Add to the above blend under stirring condition, add 0.2 part of BYK-348, 0.1 part of Foamaster WO 2360 in sequence, and then discharge.

[0034] Substrate: 250g / m 2 White cardboard, coating method: blade coating, drying condition: 80°C, 40s. Primer coating amount: 6g / m 2 .

Embodiment 3

[0036] (1) Add 8 parts of Dagot-90, 2 parts of hydrogenated polydecene, and 1 part of BYK-190 into the dispersion tank, heat to 60°C, add 13.5 parts of water to disperse, and cool to room temperature.

[0037] (2) 75 parts of Add to the above blend under stirring condition, add 0.3 parts of BYK-348 and 0.2 parts of AIRASE-5355 in sequence, and then discharge.

[0038] Substrate: 250g / m 2 White cardboard, coating method: knife coating, drying condition: 120°C, 30s. Primer coating amount: 20g / m 2 .

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Abstract

The invention discloses a barrier coating, a preparation method thereof and recyclable paper. The barrier coating is prepared from the following components: acrylic emulsion, deionized water, polyethylene furandicarboxylate, hydrogenated polydecene, a dispersing agent, a wetting agent and a defoaming agent. The intrinsic viscosity of the polyethylene furandicarboxylate is controlled between 0.2 dL / g and 0.4 dL / g. The excellent barrier property and the excellent anti-adhesion property of a single coating can be realized, and meanwhile, the recoverability is realized. The problems that existing materials cannot be recycled and construction is complex are solved.

Description

technical field [0001] The invention relates to packaging technology, in particular to a barrier coating, in particular to a barrier coating for recyclable paper. Background technique [0002] With the increasingly serious problem of plastic pollution, countries around the world have successively introduced a series of plastic restriction regulations. The National Development and Reform Commission and the Ministry of Ecology and Environment jointly announced the "Opinions on Further Strengthening Plastic Pollution Control". According to reports, by the end of 2020, my country will take the lead in banning and restricting the production, sale and use of some disposable plastic products in some regions and fields. The EU has banned 10 single-use plastic products, including disposable tableware, glasses, plates and plastic cotton swabs. The ban will be fully implemented in 2021. Aims to ensure all plastic packaging is reusable or recyclable by 2030. Patent No. CN 110656543 ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D167/02C09D7/63D21H19/20D21H19/28D21H21/14
Inventor 郝宝祥刘旭阳梁迪孙伟祖邓俊英方璞
Owner WANHUA CHEM GRP CO LTD
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