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Preparation method of polyacrylate-polyurethane resin binder for single-fluid general plastic gravure alcohol-soluble and water-soluble composite ink

A water-soluble composite, polyacrylate technology, used in inks, applications, household appliances, etc., can solve the problems of poor compatibility of ester-soluble laminating adhesives, poor compatibility of alcohol-soluble laminating adhesives, and low composite strength. , to achieve the effect of good printing effect, high composite strength and strong adaptability

Active Publication Date: 2012-01-25
CHENGDU XINJIN TUOZHAN PRINTING INK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the single-liquid alcohol-water-based composite ink prepared with polyacrylate as the resin binder is mainly suitable for BOPP plastic film substrates and alcohol-soluble laminating adhesives due to the weak polarity of polyacrylate molecules. When used on the surface, the adhesion is poor, and the compatibility with the ester-soluble laminating adhesive is poor, and the composite strength is low; while the single-liquid alcohol-water composite ink prepared with polyurethane as the resin binder, due to the strong polyurethane molecule It is mainly suitable for PET plastic film substrates and ester-soluble laminating adhesives. When used on BOPP plastic film substrates, the adhesion is poor, and the compatibility with alcohol-soluble laminating adhesives is poor, and the composite strength is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Dry the 500ml four-necked bottle, stirrer, feeding tube and other instruments at 120°C for 2 hours, take it out and place it in a desiccator to cool. Add 85.5 g of isophordione diisocyanate (IPDI) to a 500 ml four-necked bottle with a stirrer and a thermometer, heat to 50° C. under stirring, add 0.03 g of dibutyltin dilaurate, stir and mix for 10 minutes, and then 50.0 g of hydroxypropyl acrylate was added dropwise. After reacting at 50° C. for 3 hours, 153.9 g of polyester diol with a molecular weight of 400 was added, and the reaction was continued at 50° C. for 4 hours. Then cool to 30° C. and discharge to obtain a polymerizable polyurethane macromonomer.

[0015] Add 2.5g of azobisisobutyronitrile, 120g of ethyl acetate and 130g of absolute ethanol into the reactor, stir evenly, then heat up to 75°C; Butyl ester, 200g of vinyl acetate, 50g of polymerizable polyurethane macromonomer, 15g of hydroxyethyl acrylate are uniformly mixed) and initiator solution (by 2.5g ...

Embodiment 2

[0017] Dry the 500ml four-necked bottle, stirrer, feeding tube and other instruments at 120°C for 2 hours, take it out and place it in a desiccator to cool. Add 95.8 g of isophordione diisocyanate (IPDI) to a 500 ml four-necked bottle with a stirrer and a thermometer, heat to 60° C. under stirring, add 0.06 g of dibutyltin dilaurate, stir and mix for 15 minutes, and then 50.0 g of hydroxyethyl acrylate was added dropwise. After reacting at 60°C for 1 hour, 172.4 g of polyester diol with a molecular weight of 400 was added, and the reaction was continued at 60°C for 2 hours. Then cool to 30° C. and discharge to obtain a polymerizable polyurethane macromonomer.

[0018] 2.0g of benzoyl peroxide, 100g of ethyl acetate and 60g of absolute ethanol were added to the reactor, and after stirring evenly, the temperature was raised to 80°C; after the temperature stabilized, the monomer mixture (from 240g of ethyl acrylate ester, 144g of vinyl acetate, 52g of polymerizable polyurethane...

Embodiment 3

[0020]Dry the 500ml four-necked bottle, stirrer, feeding tube and other instruments at 120°C for 2 hours, take it out and place it in a desiccator to cool. Add 85.5 g of isophordione diisocyanate (IPDI) to a 500 ml four-necked bottle with a stirrer and a thermometer, heat to 50° C. under stirring, add 0.08 g of dibutyltin dilaurate, stir and mix for 10 minutes, and then 50.0 g of hydroxypropyl acrylate was added dropwise. After reacting at 50°C for 1 hour, 230.8 g of polyester diol with a molecular weight of 600 was added, and the reaction was continued at 50°C for 45 hours. Then cool to 30° C. and discharge to obtain a polymerizable polyurethane macromonomer.

[0021] Add 1.2g of azobisisobutyronitrile, 200g of ethyl acetate and 100g of absolute ethanol into the reactor, stir evenly, then heat up to 80°C; Butyl ester, 200g of vinyl acetate, 60g of polymerizable polyurethane macromonomer, 20g of acrylic acid are uniformly mixed) and initiator solution (by 1.2g of azobisisobu...

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Abstract

The invention relates to a resin binder for the plastic gravure composite ink, in particular to a preparation method of a resin binder for the single-fluid general plastic gravure alcohol-soluble and water-soluble composite ink. The invention provides a preparation method of a polyacrylate-polyurethane resin binder for the single-fluid general plastic gravure alcohol-soluble and water-soluble composite ink. The method uses (methyl) acrylate, vinyl acetate, polymerizable polyurethane macromonomer and activated functional monomer as raw materials and is prepared by the radical polymerization ofsolution. As polyurethane branch chains are introduced, the composite ink has good adhesive force to various plastic film substrates such as BOPP, PET, PA, PVC, PE and PC, good printing adaptability and high combined strength, and can adapt to various laminating adhesives such as fat-soluble laminating adhesives and alcohol-soluble laminating adhesives. The preparation method of the resin binder for the ink is easy, the prepared ink has good printing effect and high adaptability and can be used for printing various plastic substrates; crosslinking component is not needed to use, the resin binder has convenient operation and high combined strength; the resin binder is alcohol-soluble, water-soluble, economical and environmentally friendly, and has wide application prospect in the plastic gravure composite ink field.

Description

technical field [0001] The invention relates to a resin binder for plastic gravure composite ink, in particular to a resin binder for single-liquid universal plastic gravure alcohol water-soluble composite ink and a preparation method thereof. technical background [0002] In recent years, with the continuous improvement of people's living standards, it not only drives the rapid growth of the packaging industry, but also promotes the continuous development of plastic gravure ink technology and market. At present, plastic gravure ink has been widely used in plastic packaging, such as various plastic film substrate packaging in food, medicine, agricultural and sideline products, daily necessities and other industries, and its application range covers almost all packaging fields. In order to adapt to the pursuit of "green and environmental protection" in social development, plastic gravure ink companies and related research institutions have been committed to the research and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F290/06C08G18/67C09D11/10C09D11/107
Inventor 付勇金勇
Owner CHENGDU XINJIN TUOZHAN PRINTING INK
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