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A kind of gravure printing water-based ink and preparation method thereof

A water-based ink and gravure printing technology, applied in ink, household utensils, applications, etc., can solve the problems of adverse effects on the bonding force between adhesives and substrates, and achieve easy emulsification, improved bonding performance, and good compatibility. Effect

Active Publication Date: 2021-12-21
广东佰合新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improving wetting can be addressed with post-additives, but post-additives tend to adversely affect the bond between the adhesive and the substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of preparation method of gravure printing water-based ink of the present embodiment, comprises following preparation steps:

[0044](1) Preparation of water-based acrylic resin emulsion: 7 mass parts of butyl acrylate, 3 mass parts of methyl methacrylate, 5 mass parts of acrylic acid and emulsifier sodium dodecylbenzenesulfonate are added to 20 mass parts of deionized water , the mass concentration of the emulsifier added is 1%, stir and emulsify to obtain an emulsion; then raise the temperature to 80°C, add the aqueous solution of the initiator benzoyl peroxide to carry out the polymerization reaction, the dropping time is controlled to 3h, and the initiator is added dropwise Then add 2 parts by mass of amino polystyrene microsphere dispersion (commercially purchased, L815949 amino polystyrene microsphere dispersion, particle size 0.05-0.1 μm, 2.5% w / v) as a cross-linking agent for cross-linking reaction for 1.5 h , to obtain aqueous acrylic resin emulsion.

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Embodiment 2

[0048] A kind of preparation method of gravure printing water-based ink of the present embodiment, comprises following preparation steps:

[0049] (1) Preparation of water-based acrylic resin emulsion: 6 mass parts of butyl acrylate, 4 mass parts of methyl methacrylate, 4 mass parts of acrylic acid, 2 mass parts of methacrylic acid and emulsifier sodium dodecylbenzenesulfonate are added In 20 parts by mass of deionized water, the mass concentration of the emulsifier added is 1%, stirred and emulsified to obtain an emulsion; then the temperature is raised to 80° C., and the aqueous solution of the initiator benzoyl peroxide is added dropwise to carry out the polymerization reaction, and the dropping time is controlled as 3h, after adding the initiator dropwise, add 3 parts by mass of amino polystyrene microsphere dispersion (commercially purchased, L815949 amino polystyrene microsphere dispersion, particle size 0.05-0.1 μm, 2.5% w / v) as a cross-linking The agent was subjected t...

Embodiment 3

[0053] A kind of preparation method of gravure printing water-based ink of the present embodiment, comprises following preparation steps:

[0054] (1) Preparation of water-based acrylic resin emulsion: 6 mass parts of butyl acrylate, 4 mass parts of methyl methacrylate, 4 mass parts of acrylic acid, 2 mass parts of methacrylic acid and emulsifier alkylphenol polyoxyethylene ether are added to 20 parts by mass of deionized water, the mass concentration of the emulsifier added is 1%, stir and emulsify to obtain an emulsion; then raise the temperature to 80°C, add the aqueous solution of the initiator benzoyl peroxide to carry out the polymerization reaction, and the dropping time is controlled to 3h After the initiator is added dropwise, add 2 parts by mass of amino polystyrene microsphere dispersion (commercially purchased, L815949 amino polystyrene microsphere dispersion, particle diameter 0.05~0.1 μm, 2.5% w / v) as crosslinking agent The cross-linking reaction was carried out ...

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Abstract

The invention belongs to the technical field of water-based ink, and discloses a gravure printing water-based ink and a preparation method thereof. The present invention adopts (meth)acrylic ester monomer and (meth)acrylic acid monomer to obtain aqueous acrylic resin emulsion through emulsion polymerization and adding amino polystyrene microsphere cross-linking reaction; Body emulsion and amino-terminated hyperbranched polysiloxane are grafted to obtain hyperbranched polysiloxane modified waterborne polyurethane emulsion; then the above two adhesives are mixed with pigments, functional additives and water evenly to obtain the obtained Water-based ink for gravure printing. The present invention uses amino polystyrene microspheres to carry out cross-linking modification on polyacrylic acid adhesives, and uses hyperbranched polysiloxane to carry out graft modification on polyurethane adhesives, and through the synergistic cooperation of the two adhesives, The obtained water-based ink has good glossiness and binding force, and has outstanding wettability to plastic substrates.

Description

technical field [0001] The invention relates to the technical field of water-based ink, in particular to a gravure printing water-based ink and a preparation method thereof. Background technique [0002] At present, the vast majority of domestic flexible packaging uses plastic packaging, and most of them use gravure printing technology, while most of the inks used in traditional gravure printing are solvent-based inks containing organic volatiles such as toluene, methyl ethyl ketone, ethyl acetate, and glycol ether. , these harmful substances account for 60%-80% or more of the total ink volume, and more such harmful substances are added in the printing process, and finally all these harmful substances are discharged into the air, causing serious pollution to the environment ; At the same time, the above-mentioned harmful substances in the operating environment cause different degrees of poisoning to the user's body, and the static electrodes generated by the equipment substr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/107C09D11/102C09D11/03C09D11/033
CPCC09D11/107C09D11/102C09D11/03C09D11/033
Inventor 李星明
Owner 广东佰合新材料科技股份有限公司
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