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Single-component acrylic modified polyester two-piece can printing ink and preparing method thereof

A modified polyester, acrylic prepolymerization technology, applied in inks, household appliances, applications, etc., can solve the problems of mechanical and physical decline, coating discoloration, ink flying, etc., to achieve good processability and reduce ink splashing effect.

Active Publication Date: 2018-10-12
清远慧谷新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing two-piece can ink problems of discoloration of the coating at high temperature, decline in mechanical and physical properties, and ink flying during printing, the present invention provides a one-component acrylic modified polyester two-piece can ink and a preparation method thereof

Method used

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  • Single-component acrylic modified polyester two-piece can printing ink and preparing method thereof
  • Single-component acrylic modified polyester two-piece can printing ink and preparing method thereof
  • Single-component acrylic modified polyester two-piece can printing ink and preparing method thereof

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preparation example Construction

[0062] Another embodiment of the present invention discloses the preparation method of the above-mentioned one-component acrylic modified polyester two-piece can ink, comprising the following steps:

[0063] Obtain acrylic modified polyester resin;

[0064] Mix 30-50 parts of acrylic modified polyester resin with 3-15 parts of organic solvent, add 20-45 parts of pigment while stirring, add 10-15 parts of amino resin, 0.5-1.5 parts of catalyst and 0.5-2 parts of Modified urea, mixed uniformly and then ground by a three-roll machine to obtain a one-component acrylic modified polyester two-piece can ink.

[0065] In some embodiments, the one-component acrylic modified polyester two-piece tank ink also includes the following components by weight:

[0066] 3-5 parts of auxiliary agent, 1-3 parts of nano gas phase silicon dioxide and 1-3 parts of adhesion promoter.

[0067] The auxiliary agent includes one or more of wetting agent, defoamer and leveling agent.

[0068] In some em...

Embodiment 1

[0074] Preparation of Acrylic Modified Polyester Resin

[0075] 1) Polyester prepolymer (parts by mass)

[0076] 27 parts of neopentyl glycol, 5.6 parts of MPD, 12.5 parts of 1,6-hexanediol, 8.9 parts of phthalic anhydride, 38 parts of adipic acid, 0.02 parts of monobutyl tin oxide, 7.98 parts of ethylene glycol ethyl ether acetate share;

[0077] Synthesis process: put all the materials and reflux solvent in the reactor, stir and heat up to 160°C, keep warm for 3H, blow nitrogen and gradually dehydrate to 235°C, esterify to solid content > 90%, molecular weight 1000-3000, acid value ≤ 17mgKOH / g, the viscosity is 1500mpa.s as the end point.

[0078] 2) Acrylic acid prepolymer (parts by mass)

[0079] 12.4 parts of acrylic acid, 44 parts of butyl acrylate, 12 parts of styrene, 20 parts of butyl methacrylate, 1.6 parts of neopentyl peroxide L531;

[0080] 10 parts of ethylene glycol ether acetate.

[0081] Synthesis process: Mix all the monomers, chain transfer agent and 70...

Embodiment 2

[0090] Prepare the white ink for two can inks, and the content of each component weight percentage is as follows:

[0091]

[0092] The preparation method is as follows: mix acrylic modified polyester resin, ethylene glycol monobutyl ether, BYK110, BYK051, BYK392, stir at high speed with a high-speed disperser, then add CR-60-2 while stirring, add CR-60-2 After stirring for 5-10 minutes, add N20 while stirring. After stirring for about 5 minutes, add amino resin, blocked p-toluenesulfonic acid, BYK410 and adhesion promoter, stir at 600-800 rpm for half an hour, and pass through a three-roller machine grind. When the ink fineness is less than 10μm, test the viscosity, fluidity, and ink flying, and pack it after passing the test. All the above raw materials have been tested and certified by SGS, and they meet the high environmental quality requirements of inks that comply with REACH regulations, RoHS2.0, benzene-free / halogen-free / bisphenol-A-free.

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Abstract

The invention provides a single-component acrylic modified polyester two-piece can printing ink, and aims at solving the problems that the color of a coating of an existing two-piece can printing inkchanges under high temperature, the mechanical physical property of the existing two-piece can printing ink is lowered, and misting occurs during printing. The single-component acrylic modified polyester two-piece can printing ink comprises, by weight, 30-50 parts of acrylic modified polyester, 10-15 parts of amino resin, 3-15 parts of organic solvent, 0.5-1.5 parts of catalyst, 20-45 parts of pigment and 0.5-2 parts of modified urea; the molecular weight and the hydroxyl value of the acrylic modified polyester are 2000-5000 and 20-100 mg / (KOH / g) respectively. Meanwhile, the invention furtherdiscloses a preparing method of the single-component acrylic modified polyester two-piece can printing ink. The provided single-component acrylic modified polyester two-piece can printing ink has highboiling resistance, gloss oil affinity, solid content and anti-misting property.

Description

technical field [0001] The invention belongs to the technical field of high-speed machine printing ink, and in particular relates to a one-component acrylic modified polyester two-piece can ink and a preparation method thereof. Background technique [0002] The surface decoration of traditional food metal packaging is to carry out lithographic printing on the metal surface first, bake and dry, and then make food packaging jars. The ink printed on the outside of the packaging jars is generally about 4-6 microns, and the production process cycle is relatively short. Long, in the production process, it is easy to wear the pattern of the ink outside the tank, thus affecting the vividness of the packaging color and the perfection of the pattern. In addition, traditional food packaging can inks have relatively high energy consumption, low mass production efficiency, and VOC emissions greater than the national control range during the printing process, and a large number of them ar...

Claims

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Application Information

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IPC IPC(8): C09D11/104C09D11/102C09D11/03
CPCC09D11/03C09D11/102C09D11/104
Inventor 冯志德韩林欧阳顺冀伟强
Owner 清远慧谷新材料技术有限公司
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