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Solvent-free highlight coating and preparation method thereof

A solvent-free and paint-free technology, applied in the direction of paper coating, coating, and pigment-free coating, etc., can solve the problems of complex production equipment, insufficient gloss, large paper deformation, etc., and achieve low cost, strong adhesion, and paper deformation. small effect

Active Publication Date: 2021-04-30
SHANTOU XINYUAN CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the high-gloss coatings currently used in the composite transfer method are water-based acrylic emulsion products, which require a drying process during the application process, high energy consumption, complex production equipment, and disadvantages such as large paper deformation and insufficient gloss.

Method used

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  • Solvent-free highlight coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In the present embodiment, the preparation method of solvent-free high-gloss coating comprises the following steps:

[0037] (1) By weight, the following raw materials are equipped: 50% isocyanate (both diphenylmethane diisocyanate), 20% chain extension resin (both polycaprolactone diol with a molecular weight of 1000 (trade name: PCL -1000)), cross-linked resin 10% (both polyether polyols with a molecular weight of 595 sucrose as the initiator (trade name: Yinuowei YNW-8343)), active polysiloxane 10% (both α, ω-dihydroxyalkyl polysiloxane with a molecular weight of 1000), 2% hydroxyacrylate (both are hydroxyethyl acrylate), 2% chain extenders (both are hydroquinone dihydroxyethyl ether), Cross-linking agent 0.3% (both trimethylolpropane), pre-catalyst 0.1% (both stannous octoate), post-catalyst 0.1% (both bismorpholino diethyl ether), molecular sieve activation powder 2.5% ( Both are molecular sieve activation powder JLH-PU of Luoyang Jianlong Micro-nano New Material ...

Embodiment 2

[0046] In the present embodiment, the preparation method of solvent-free high-gloss coating comprises the following steps:

[0047] (1) By weight, the following raw materials are equipped: 36% isocyanate (both are isophorone diisocyanate), 30% chain extension resin (both are polyoxypropylene ether diamines with a molecular weight of 2000 (trade name: ZD- 1400)), cross-linked resin 20% (both polyether polyols with a molecular weight of 650 sorbitol as the initiator (trade name: Lianchuang LC-260S)), active polysiloxane 6% (both molecular weight 1000 aminopropyl-terminated polydimethylsiloxane), hydroxyacrylate 1.5% (both hydroxyethyl acrylate), chain extender 1.5% (both 1,4-butanediol), cross-linked Agent 0.1% (both trimethylolpropane), pre-catalyst 0.05% (both stannous octoate), post-catalyst 0.05% (both triethanolamine), molecular sieve activation powder 1% (both Luoyang Jianlong micro nano new Materials Co., Ltd.’s molecular sieve activation powder JLH-PU), leveling agent 0...

Embodiment 3

[0056] In the present embodiment, the preparation method of solvent-free high-gloss coating comprises the following steps:

[0057] (1) By weight, the following raw materials are equipped: 63.5% isocyanate (both hexamethylene diisocyanate trimer), 11% chain extension resin (both are polyoxypropylene glycol with a molecular weight of 2000 (trade name: YNW-220)), 5% cross-linked resin (both polyether polyols (trade name: NJ-303) with a molecular weight of 350 glycerol as the initiator), 8% reactive polysiloxane (both Aminopropyl-terminated polydimethylsiloxane with a molecular weight of 1000), 1.5% hydroxyacrylate (both hydroxyethyl methacrylate), 3% chain extender (both diethylene glycol), Cross-linking agent 0.2% (both glycerol), pre-catalyst 0.1% (both dibutyltin dilaurate), post-catalyst 0.2% (both dimethylethanolamine), molecular sieve activation powder 5% (both Luoyang Jian Molecular sieve activation powder JLH-PU of Longwei Nano New Material Co., Ltd.), 0.8% leveling age...

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Abstract

The solvent-free highlight coating is characterized by being prepared from the following raw materials in percentage by weight: 30 to 70 percent of isocyanate, 10 to 30 percent of chain extension resin, 5 to 20 percent of cross-linked resin, 5 to 25 percent of active polysiloxane, 1 to 5 percent of hydroxyl acrylate, 1 to 5 percent of a chain extender, 0.1 to 0.5 percent of a cross-linking agent, 0.02 to 0.2 percent of pre-catalyst, 0.02 to 0.2 percent of post-catalyst, 1 to 5 percent of molecular sieve activating powder, 0.05 to 1 percent of a flatting agent, 0.05 to 1 percent of a defoaming agent and 0.5 to 5 percent of an antistatic agent. The invention also provides a preparation method of the solvent-free highlight coating. A solvent-free high-gloss paint is used for producing high-gloss card paper by a composite transfer process, has a normal-temperature self-curing function, does not need heating or ray curing, and is small in paper deformation rate, high in paper surface gloss, good in heat resistance, good in folding resistance, good in adhesive force between a coating and the paper, and good in stripping property between the coating and a mould pressing film.

Description

technical field [0001] The invention relates to a paint composition, in particular to a solvent-free high-gloss paint and a preparation method thereof. Background technique [0002] Aviation glass cardboard is also called cast-coated paper. The traditional processing method is to paste the coated base paper on the heated, highly polished chrome-plated drying cylinder surface with mirror luster, and then dry and peel off the processed paper. Because the paper surface is smooth and as bright as glass, it is also called glass cardboard, commonly known as high-gloss paper. As a high-end packaging material, high-gloss paper is widely used in the outer packaging of high-end products such as cosmetics, medicines, health care products, high-end tobacco and alcohol, and the market demand potential is very large. [0003] At present, the production of high-gloss paper at home and abroad has traditional casting coating technology and composite transfer technology. [0004] The tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/24D21H19/32D21H19/14D21H21/14C08G18/32C08G18/42C08G18/48C08G18/61C08G18/66C08G18/67
CPCD21H19/24D21H19/32D21H19/14D21H21/14C08G18/4277C08G18/48C08G18/4018C08G18/61C08G18/672C08G18/3215C08G18/3206C08G18/6611C08G18/6607C08G18/482C08G18/4009C08G18/6674C08G18/6677C08G18/4812
Inventor 郑少琴谢进标孔花
Owner SHANTOU XINYUAN CHEM TECH CO LTD
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