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Water-based gravure ink vehicle and preparation method thereof

A technology of gravure printing ink and connecting material, which is applied in the direction of ink, household appliances, application, etc., can solve the problems of harmful, polluting the environment, human body, limited chemical resistance and stability of raw materials, etc., and achieves simple process, fast drying speed, good gloss effect

Active Publication Date: 2014-03-26
珠海悦美水墨新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water-based gravure ink binder, which solves the problem that the existing water-based gravure ink binder has limited chemical resistance and stability, volatile substances in raw materials, pollutes the environment or is harmful to the human body

Method used

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Examples

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preparation example Construction

[0035] The preparation method of water-based gravure ink binder of the present invention specifically comprises the following steps:

[0036] Step 1, weigh 1%~8% epoxy resin E-44, 1%~8% ring opener, 2%~16% solvent, 5%~10% additives, 40%~80% Water-based polyurethane resin, 10% to 30% diluent, the total weight percentage of the above components is 100%, and the auxiliary agent is composed of catalyst, polymerization inhibitor, chain extender, crosslinking agent, defoamer and leveling agent mixture;

[0037] Use the solvent weighed in step 1 to dilute the epoxy resin, add the ring opener and mix evenly, and prepare under the condition of a constant temperature water bath at 60°C to 70°C:

[0038] Step 2, pour the epoxy resin E-44 diluted with ethyl acetate into the reaction container, add the polymerization inhibitor and catalyst evenly, stir evenly, and react in a constant temperature water bath at 60°C to 70°C for 4.5 hours while stirring at a low speed;

[0039] Step 3, addi...

Embodiment 1

[0042] Step 1, take the following components by weight percentage: 1% epoxy resin E-44, 2% solvent, 1% ring opener, 80% water-based polyurethane resin, 6% auxiliary agent, 10% diluent, wherein, auxiliary The agent is 1% catalyst, 0.5% polymerization inhibitor, 2.5% chain extender, 0.5% crosslinking agent, 0.5% leveling agent and 1% defoamer accounting for the total weight of the water-based gravure ink binder;

[0043] Among them, the ring-opening agent is diethanolamine; the solvent is ethyl acetate; the catalyst is triethanolamine; the polymerization inhibitor is hydroquinone; the chain extender is diethylene glycol (DEG); the crosslinking agent is SC- 100; the leveling agent is silicone acrylate; the defoamer is acetylene glycol DF-70 type; the diluent is deionized water;

[0044] Use the solvent weighed in step 1 to dilute the epoxy resin, add a ring opener and mix evenly, and prepare under the condition of a constant temperature water bath at 60°C-70°C:

[0045] Step 2, ...

Embodiment 2

[0050] Step 1, take the following components by weight percentage: 2% epoxy resin E-44, 4% solvent, 2% ring opener, 70% water-based polyurethane resin, 7% auxiliary agent, 15% diluent, wherein, auxiliary The agent is 1% catalyst, 0.5% polymerization inhibitor, 2.5% chain extender, 1% crosslinking agent, 0.5% leveling agent and 1.5% defoamer accounting for the total weight of water-based gravure ink binder;

[0051] Among them, the ring-opening agent is diethanolamine; the solvent is acetone; the catalyst is a mixture of N,N-dimethylethanolamine and N,N-dimethylformamide in a ratio of 1:1; the polymerization inhibitor is p-methoxy Phenol; chain extender is 4,4-dihydroxydiphenylpropane (BPA); crosslinking agent is polyether trihydric alcohol N330; leveling agent is silicone acrylate; defoamer is 504 surfactant; dilution The agent is a mixture of ethanol and deionized water in a ratio of 1:1;

[0052] Use the solvent weighed in step 1 to dilute the epoxy resin, add a ring opener...

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Abstract

The invention discloses a water-based gravure ink vehicle comprising the components in percentage by weight as follows: epoxy resin E-44, a ring opener, a solvent, an assistant, a waterborne polyurethane resin and a diluent, wherein the assistant is a mixture of a catalyst, an inhibitor, a chain extender, a cross-linking agent, an antifoaming agent and a flatting agent. The invention further discloses a preparation method of the water-based gravure ink vehicle. The preparation method comprises the steps as follows: firstly weighing the components, diluting the epoxy resin E-44 with ethyl acetate, reacting in a constant-temperature bath with a modifier for 4.5 h under the catalyst action, enabling the epoxy resin to open rings, and introducing hydroxyl groups; then adding the modified epoxy resin into a mixed liquor of the waterborne polyurethane resin, the chain extender and the cross-linking agent for reaction, then adding the flatting agent, the antifoaming agent and the diluent, and collecting the product to obtain the water-based gravure ink vehicle. The water-based gravure ink vehicle is free of solvent emission, safe and free of pollution; the preparation method is simple, the reaction condition is simple, and the preparation method is easy to realize; and used equipment is low in price and small in size.

Description

technical field [0001] The invention belongs to the technical field of printing and reproduction, and relates to a water-based gravure ink connecting material, and also relates to a preparation method of the water-based gravure ink connecting material. Background technique [0002] As water-based gravure ink binder, water-based polyurethane resin is an environment-friendly polymer material. It uses water as the dispersion medium and has the advantages of non-combustibility, no pollution to the environment, energy saving, and convenient operation and processing. It has good leveling and film-forming properties. Good resistance, strong hiding power, cold-resistant, heat-resistant, wear-resistant and elastic coating. It is processed into coatings, adhesives, foam plastics and elastomers, which are widely used in wood, vehicles, aircraft, ships, and leather industries. But the solid content is low, the chemical resistance and solvent resistance are poor, and the hardness and su...

Claims

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Application Information

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IPC IPC(8): C09D11/102C08G18/83
Inventor 刘昕高红丽
Owner 珠海悦美水墨新材料股份有限公司
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