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Alcohol-soluble ink for printing plastic woven bag and preparation method of alcohol-soluble ink

A plastic woven bag and alcohol-soluble technology, applied in the field of ink, can solve the problems of poor adhesion, slow drying of water-based ink, poor stability of color paste, etc., and achieve the effect of good adhesion, simple raw materials, and simple preparation process

Active Publication Date: 2019-07-12
山东华诺日化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the drying system of domestic printing machinery cannot solve the problem of slow drying of water-based inks, the development of alcohol-based inks has become the key to solving the current environmental protection problems
[0004] However, alcohol-based inks often have the problems of poor color paste stability and poor adhesion in the process of printing plastic woven bags

Method used

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  • Alcohol-soluble ink for printing plastic woven bag and preparation method of alcohol-soluble ink

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0031] Preparation of Acrylic Resin Suspension:

[0032] Ingredients by weight percentage: mass concentration is 50% ethanol solution of acrylic acid-maleic acid copolymer (300g, Mw~3000, Sigma-Aldrich (Shanghai) Trading Co., Ltd.), ethoxylated bisphenol A methacrylate diester (200g, Mn~1700, ethoxyl / phenolic group=15, Sigma Aldrich (Shanghai) Trading Co., Ltd.), 2-methyl-2-acrylic acid-2-ethylhexyl ester homopolymer (200g, Mw ~123000, Sigma-Aldrich (Shanghai) Trading Co., Ltd.) and ethanol (500g) were added to a high-pressure homogenizer (DeBEE2000, USA) and homogenized at 50-55MPa for 1-2h to obtain an acrylic resin suspension.

[0033] The solid content of the prepared acrylic resin suspension is 45-46%, and the average particle diameter of the particles in the suspension is measured by a laser particle size analyzer to be 20-30nm; the viscosity of the acrylic resin suspension is 40-50cps (2# / 25°C, Brookfield Viscometer).

manufacture example 2

[0035] Ingredients according to the weight ratio of the connecting material:

[0036] 55 parts by weight of acrylic resin suspension (prepared by manufacturing example 1 method) is mixed with 36 parts by weight of ethanol, then add alcohol-soluble functional auxiliary agent (1 weight part of polyethylene wax produced by Nanjing Yangzi Petrochemical Fine Chemical Co., Ltd., 2 parts by weight Wetting and dispersing agent F203 produced by Hangzhou Lin'an Coating Auxiliary Chemical Co., Ltd. and 2 parts by weight of wetting and dispersing agent F160 produced by Hangzhou Lin'an Coating Auxiliary Chemical Co., Ltd.) were homogenized in a high-pressure homogenizer for 6-10min, and then added formazan Glycidyl acrylate (4 parts by weight) was homogenized for 1-5 minutes to obtain a connecting material.

Embodiment 1

[0038] Preparation of color paste and investigation of its stability:

[0039]Get 65 parts by weight of connecting material (manufacturing example 2 preparation), 10 parts by weight of pigment (carbon black CSX865, primary particle diameter 20nm, specific surface area is 150m 2 / g, U.S. Cabot Company), 10 parts by weight of ethanol are mixed evenly, then add the pH regulator triethanolamine to adjust the pH of the system to 8.1-8.2, and use a grinder to grind to obtain a color paste; the grinding medium is a particle size of 10-20 microns Zirconia beads, the filling rate is 65%, the grinding speed is 3000rpm, the temperature during the grinding process is room temperature (25±5°C), and the grinding time is 2-3h.

[0040] Color paste particle size test: Take 0.5g of color paste, add 200g of absolute ethanol, disperse with ultrasonic waves for 5 minutes, put the dispersed sample for 10 minutes, and then add the laser particle size analyzer to the circulating sampling system. Whe...

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Abstract

The invention belongs to the technical field of ink and in particular relates to an alcohol-soluble ink for printing a plastic woven bag and a preparation method of the alcohol-soluble ink. Accordingto the preparation method, a nano-grade acrylic resin suspension is prepared from macromolecule 2-methyl-2-acrylic acid-2-ethyl hexyl ester homopolymer, a micromolecular acrylic acid-maleic acid copolymer and ethoxybisphenol A methyl diacrylate as raw materials, then a connecting material is prepared, and the connecting material together with a pigment and alcohol-soluble functional aids form thealcohol-soluble ink for printing the plastic woven bag. The alcohol-soluble ink for printing the plastic woven bag, which is provided by the invention, is excellent in property such as color paste stability, adhesion performance and printed membrane pasting solidness, has industrial application prospects and is capable of replacing solvent type inks.

Description

technical field [0001] The invention belongs to the technical field of ink, and in particular relates to an alcohol-soluble ink for printing plastic woven bags and a preparation method thereof. Background technique [0002] Ink for plastic woven bag printing began in the late 1970s, and began to use pigments and benzene as ink, which is only suitable for simple packaging requirements. Because the solvents used are benzene and ethyl ester, which are very toxic and corrode the printing plate, the number of times the printing plate is used is very low. In the later stage, gasoline was used as a solvent, which improved the related performance of the ink, but the gloss and solubility were not good. In recent years, due to the continuous improvement of market requirements for woven bag printing and environmental protection, ink manufacturers have been forced to further improve the performance of plastic woven bag ink. [0003] Organic solvents are the main components of inks, an...

Claims

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Application Information

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IPC IPC(8): C09D11/107
CPCC09D11/107
Inventor 石玉传
Owner 山东华诺日化有限公司