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High-gloss aqueous blister varnish and preparation method thereof

A water-based plastic-absorbing oil, high-gloss technology, applied in the direction of adhesive types, polyurea/polyurethane adhesives, adhesives, etc., can solve the problems of emission reduction, large particle size difference, and gloss reduction, and achieve simplification Process, high bonding strength, high gloss effect

Active Publication Date: 2019-05-21
WANHUA CHEMICAL (NINGBO) CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the blister oil products on the market are mainly solvent-based, and the conversion rate of "oil-to-water" in the market is less than 10%.
However, there is no suitable solution for the need for gloss, especially high gloss
Although the Chinese patent CN201610520211.7 mentioned the glossiness control of blister oil, it mainly introduced the matte type blister oil obtained by adding fumed silica, that is, the glossiness is less than 30%. How to achieve high glossiness but did not mention
Chinese patent CN108822653A uses water-based acrylic emulsion with large particle size difference, water-based acrylic resin dispersion and water-based polyurethane compound, which is difficult to achieve high gloss requirements
In addition, although the addition of wax emulsion can improve the wear resistance, it will inevitably further reduce the gloss.
[0005] In order to meet customers' requirements for high gloss, some water-based plastic oil suppliers will suggest that customers add diluents to improve the gloss of the film when using them. original intention

Method used

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  • High-gloss aqueous blister varnish and preparation method thereof
  • High-gloss aqueous blister varnish and preparation method thereof
  • High-gloss aqueous blister varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The high-gloss water-based plastic-absorbing oil is prepared from the following raw materials in parts by weight:

[0037]

[0038] In this example, the high-gloss water-based plastic-absorbing oil is prepared by the following steps: according to the weight ratio described in the formula, the above-prepared aromatic water-based polyurethane dispersion and acrylic copolymer emulsion Put 4509 into the dispersion tank and stir for 10-20 minutes; Stir and mix the film-forming aids diethylene glycol butyl ether, diethylene glycol methyl ether and deionized water, then put it into the dispersion tank and stir for 10-20 minutes; add defoamer BYK024 stirred for 10-20 minutes; add wetting agent OT-75, stirred for 10-20 minutes; finally add thickener U601, U300, stir for 20-30 minutes, adjust the viscosity to coat four cups for 25-35s.

Embodiment 2

[0040] The high-gloss water-based plastic-absorbing oil is prepared from the following raw materials in parts by weight:

[0041]

[0042] In this example, the high-gloss water-based plastic-absorbing oil is prepared by the following steps: according to the weight ratio described in the formula, the above-prepared aromatic water-based polyurethane dispersion and acrylic copolymer emulsion Put 4509 into the dispersion tank and stir for 10-20 minutes; Stir and mix the film-forming aids diethylene glycol butyl ether, diethylene glycol methyl ether and deionized water, then put it into the dispersion tank and stir for 10-20 minutes; add defoamer BYK024 stirred for 10-20 minutes; add wetting agent OT-75, stirred for 10-20 minutes; finally add thickener U601, U300, stir for 20-30 minutes, adjust the viscosity to coat four cups for 25-35s.

Embodiment 3

[0044] The high-gloss water-based plastic-absorbing oil is prepared from the following raw materials in parts by weight:

[0045]

[0046] In this example, the high-gloss water-based plastic-absorbing oil is prepared by the following steps: according to the weight ratio described in the formula, the above-prepared aromatic water-based polyurethane dispersion and acrylic copolymer emulsion Put 4509 into the dispersion tank and stir for 10-20 minutes; Stir and mix the film-forming aids diethylene glycol butyl ether, diethylene glycol methyl ether and deionized water, then put it into the dispersion tank and stir for 10-20 minutes; add defoamer BYK024 stirred for 10-20 minutes; add wetting agent OT-75, stirred for 10-20 minutes; finally add thickener U601, U300, stir for 20-30 minutes, adjust the viscosity to coat four cups for 25-35s.

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Abstract

The invention relates to a high-gloss aqueous blister varnish and a preparation method thereof. The blister varnish comprises the following components in parts by weight: 35-65 parts of an aromatic aqueous polyurethane dispersion, 35-65 parts of acrylic copolymer emulsion, 0.05-0.5 part of a de-foaming agent, 0.1-1 part of a wetting agent, 0.1-1 part of a thickener, 2-6 parts of a film forming aidand 2-12 parts of deionized water. The blister varnish can achieve high gloss without polishing when being applied in the field of blister packaging so as to simplify the process, and has the characteristics of high adhesive strength, sticking resistance and low cost.

Description

technical field [0001] The invention relates to the field of plastic-absorbing packaging, in particular to a water-based plastic-absorbing oil with high gloss, high bonding strength, no anti-sticking, and low cost and a preparation method thereof. Background technique [0002] Blister packaging is widely used in the packaging of small-volume items such as electronic products, stationery, toys, hardware supplies, and daily necessities. While protecting the product, it can better display product features. The process is to heat PET, PVC and other plastic sheets to make them soft, and use the vacuum suction process to make the plastic sheets adsorb on the surface of the mold to form a plastic blister, and then bond the blister and cardboard together . The plastic-absorbing oil is coated on the surface of the cardboard, and acts as an adhesive at the joint between the blister and the cardboard, while the unpressed area also needs to play the role of decorating the surface of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C09J133/00
Inventor 张慧辰刘伟伟李永月蒋荣许松松
Owner WANHUA CHEMICAL (NINGBO) CO LTD