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Water-based plastic composite inner-printing ink

A plastic, water-based technology, used in inks, household appliances, applications, etc., can solve problems such as poor printing effect, wetting problems, poor wetting transfer, etc.

Inactive Publication Date: 2009-05-13
山西鹰鲲科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The surface tension of water reaches 72 dynes / cm, the surface layer of the printing plate is chromium, and the surface tension of the printing film is 38-48 dynes / cm, so the wetting of the surface of the printing ink and the printing film on the water-based plastic composite inner printing plate becomes The biggest problem is poor wetting, poor transfer, poor leveling, and poor printing effect; compared with organic solvents, the latent heat of volatilization of water is much larger, so the drying of water-based plastic composite inner printing ink on the printing machine becomes a problem; and peeling Strength is always the most critical indicator of plastic packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Water-based polyurethane emulsion 30.0kg

[0026] Water-based acrylic resin 8.0kg

[0027] Water-based wetting and dispersing agent 5.0kg

[0028] Water-based wetting and leveling agent 0.5kg

[0029] Water-based defoamer 0.4kg

[0030] PH regulator 3.0kg

[0031] Organic pigment 15.0kg

[0032] Ethanol 4.0kg

[0033] Water 34.1kg

[0034] The manufacturing process of water-based plastic composite inner printing ink: first add the above-mentioned proportion of water-based acrylic resin, PH regulator, water-based defoamer and appropriate amount of water into the reaction kettle and stir evenly, heat up to 60°C and keep warm until completely dissolved into a clear liquid to make a resin liquid; then mix the above-mentioned organic pigment, water-based wetting and dispersing agent, water-based defoamer and the remaining water evenly, and then disperse it on a bead mill to a fineness of ≤10 μm to make a color Paste; Finally, add the remaining components to the resin ...

Embodiment 2

[0036] Water-based polyurethane / acrylic acid copolymer emulsion 25.0kg

[0037] Water-based acrylic resin 7.0kg

[0038] Water-based wetting and leveling agent 1.2kg

[0039] Water-based defoamer 0.2kg

[0040] PH regulator 1.8kg

[0041] Pigment preform 20.0kg

[0042] Ethanol 4.0kg

[0043] Water 40.8kg

[0044] The manufacturing process is the same as in Example 1.

Embodiment 3

[0046] Waterborne polyurethane dispersion 20.0kg

[0047] Water-based acrylic resin 5.0kg

[0048] Water-based wetting and dispersing agent 6.0kg

[0049] Water-based wetting and leveling agent 0.7kg

[0050] Water-based defoamer 0.8kg

[0051] Monoethanolamine 0.5kg

[0052] Inorganic pigment 30.0kg

[0053] Ethanol 2.0kg

[0054] Water 35.0kg

[0055] The manufacturing process is the same as in Example 1.

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Abstract

The invention discloses a water-based plastic composite printing ink, in particular to a water-based ink needed in the plastic film intaglio printing composite process. To solve problems, the invention provides the water-based ink which remarkably improves composite strength, sealing strength and printing mass relative to the prior solvent ink on the premise of not reconstructing the prior printing equipment or adjusting the printing process; the water-based ink adopts the following technical proposal: the water-based plastic composite printing ink is prepared from the following raw materials in weight portion: 10 to 35 portions of aqueous polyurethane emulsion, 0 to 8 portions of aqueous acrylic resin, 0 to 7 portions of aqueous wetting dispersant, 0.2 to 2 portions of aqueous dampness levelling agent, 0.1 to 2 portions of aqueous defoaming agent, 0.1 to 5 portions of PH regulator, 6 to 30 portions of pigment, 0 to 5 portions of ethanol and 6 to 73.6 portions of water. The water-based ink can be widely applied in the field of ink manufacturing.

Description

technical field [0001] The invention relates to a water-based ink required in the composite process of plastic film gravure back printing. Background technique [0002] At present, the vast majority of domestic food flexible packaging uses plastic packaging, and most of them use gravure printing composite technology, and the inks used are all 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 substrate during high-speed operation are easy to accumulate, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/102C09D11/107
Inventor 王重声白鹏飞王尔健孔繁辉徐军赵志敏
Owner 山西鹰鲲科技有限公司
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