Laser-effect coating composition for PP substrate and preparation method thereof

A composition and coating technology, applied in the direction of coating, etc., to achieve the effect of stable storage, moderate price and low cost

Inactive Publication Date: 2019-05-07
SHANGHAI CHENGYING NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PP substrate laser effect coating composition is used as a layer of coating between the PP substrate and the aluminum coating to provide a laser effect. It needs to have good fastness to both the PP substrate and aluminum. At present, there is no product in China that can Meet these requirements simultaneously, therefore be badly in need of developing a kind of PP substrate laser effect coating composition product

Method used

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  • Laser-effect coating composition for PP substrate and preparation method thereof
  • Laser-effect coating composition for PP substrate and preparation method thereof
  • Laser-effect coating composition for PP substrate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The PP substrate laser effect coating composition of this embodiment is prepared by using the raw materials of the components and contents shown in Table 1; the specific preparation includes the following process steps:

[0031] (1) 30 kilograms of acetone, 20 kilograms of n-propyl acetate and 20 kilograms of n-butyl acetate are all dropped into the reactor, and stirred evenly;

[0032] (2) 1.5 kilograms of urea-formaldehyde resins and 2.5 kilograms of benzomelamine-formaldehyde resins are dropped into the reactor, stirred at high speed for 1.5 hours until fully dissolved;

[0033] (3) Add 6 kg of chlorinated polyethylene resin and 19.5 kg of butanol etherified phenolic resin into the reaction kettle, stir at high speed for 2.5 hours until fully dissolved

[0034] (4) Slowly add 0.2 kg of leveling agent (polydimethylsiloxane), 0.2 kg of slip agent (stearic acid amide), and 0.1 kg of drier (neodecanoic acid) into the reactor in sequence, fully Stir until well dispersed....

Embodiment 2

[0037] The PP substrate laser effect coating composition of this embodiment is prepared by using the raw materials of the components and contents shown in Table 1; the specific preparation includes the following process steps:

[0038] (1) 55 kilograms of ethyl acetate and 20 kilograms of propylene glycol methyl ether are all dropped into the reactor, and stirred evenly;

[0039] (2) 2 kilograms of melamine-formaldehyde resins and 2 kilograms of benzomelamine-formaldehyde resins are dropped into the reactor, and stirred at a high speed for 1.5 hours to fully dissolve;

[0040] (3) Add 8 kilograms of chlorinated polyethylene resin, 3 kilograms of chlorinated polypropylene resin, and 10 kilograms of oil-soluble pure phenolic resin into the reaction kettle, stir at high speed for 2.5 hours, until fully dissolved;

[0041] (4) Slowly add 0.01 kg of flow cross-linking agent (diethylene triamine) into the reaction kettle, stir well until the dispersion is uniform.

[0042] Apply th...

Embodiment 3

[0044] The PP substrate laser effect coating composition of this embodiment is prepared by using the raw materials of the components and contents shown in Table 1; the specific preparation includes the following process steps:

[0045] (1) 33 kilograms of isopropanols, 20 kilograms of n-butanols and 20 kilograms of propylene glycol methyl ether acetate are all dropped into the reactor, and stirred;

[0046] (2) 0.5 kg of urea-formaldehyde resin, 0.5 kg of melamine-formaldehyde resin, and 0.5 kg of benzomelamine-formaldehyde resin are dropped into the reactor, and stirred at a high speed for 2.0 hours to fully dissolve;

[0047] (3) 7 kilograms of chlorinated polyethylene resins, 2 kilograms of chlorinated ethylene-propylene copolymer resins, and 13.7 kilograms of butanol etherified phenolic resins are added in the reactor, stirred at high speed for 2.5 hours, until fully dissolved;

[0048] (4) Slowly add 0.2 kg of leveling agent (polydimethylsiloxane) and 0.1 kg of slip agent...

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Abstract

The present invention discloses a laser-effect coating composition for a PP substrate and a preparation method thereof. The coating composition comprises the following components in percentage by weight: 5-15% of chlorinated polyolefin resin, 10-30% of phenolic resin, 1.5%-5% of amino resin, 0.01%-0.5% of auxiliaries, and 50%-80% of solvent, wherein the chlorinated polyolefin resin is at least oneof chlorinated polyethylene resin, chlorinated polypropylene resin, and ethylene chloride-propylene chloride copolymer resin. The laser-effect coating composition for the PP substrate disclosed by the present invention has the advantages of convenience of preparation and use, storage stability, good coating adaptability, moderate price and the like. In practical application, the laser-effect coating composition for the PP substrate, as a middle layer of a product, has excellent adhesion to both a bottom PP film and an upper aluminum layer.

Description

technical field [0001] The invention relates to the field of coatings for primer coating of PP substrates, in particular to a laser effect coating composition for PP substrates and a preparation method thereof. Background technique [0002] Polypropylene (PP) film is one of the common film materials, with excellent chemical resistance, temperature and water resistance, moisture resistance, high mechanical strength, good dimensional stability, light weight, non-toxic, odorless, good printing performance, etc. Features, widely used in label printing, coating, cigarettes, food packaging bags, vacuum aluminum plating, capacitors, etc. However, PP is a material with weak polarity, and it is difficult for aluminum to directly adhere to the surface of PP plastic film, which makes aluminum easy to fall off and affects product quality. Therefore, it is necessary for the intermediate layer to play the role of connecting the substrate and the aluminum, and the fastness is better. [...

Claims

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Application Information

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IPC IPC(8): C09D161/06C09D161/14C09D123/28C09D161/24C09D161/28C09D161/26
Inventor 虞明东周腾飞
Owner SHANGHAI CHENGYING NEW MATERIALS
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