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A green printing process for packaging boxes based on water-based ink

A technology of water-based ink and packaging box, which is applied in packaging, transportation and packaging, and the manufacture of rigid/semi-rigid containers. It can solve the problems of poor water resistance of printing ink, inconvenient practical application, and poor printing effect, and achieve excellent water resistance. , high practicability, excellent printing effect

Active Publication Date: 2022-07-05
东莞印想文化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, the inks used in the conventional printing process generally use water-based polyurethane as the binder, but the printing ink prepared by this method has poor water resistance, poor printing effect, and easy to change color and blur when exposed to water, which brings great inconvenience to practical application.

Method used

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  • A green printing process for packaging boxes based on water-based ink
  • A green printing process for packaging boxes based on water-based ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A water-based ink-based green printing process for packaging boxes, comprising the following steps:

[0035] (1) Mix dopamine hydrochloride, polyethyleneimine and Tris-HCl uniformly, pH is 8.5, soak and immerse the packaging box substrate for 2 hours, take it out, wash and dry to obtain a pretreated substrate; dopamine hydrochloride The concentration is 2g / L; the mass ratio of dopamine hydrochloride and polyethyleneimine is 2:1;

[0036] (2) Take 0.2 g of silica and 90 mL of toluene, and after mixing, ultrasonically disperse for 20 min, add 0.2 g of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate and 10 mL of toluene mixed solution under an argon atmosphere, 70 The reaction was stirred at °C for 5 h, collected by centrifugation, washed and dried to obtain filler silica;

[0037] Take 100 g of tung oil, 14.3 g of ethylene glycol and 0.6 g of zinc acetate, raise the temperature to 120 ° C under nitrogen, react for 9 h, collect the product, wash with deionized wat...

Embodiment 2

[0045] A water-based ink-based green printing process for packaging boxes, comprising the following steps:

[0046] (1) Mix dopamine hydrochloride, polyethyleneimine and Tris-HCl uniformly, pH is 8.5, soak and immerse the packaging box substrate for 2.5 hours, wash and dry after taking it out, to obtain a pretreated substrate; dopamine hydrochloric acid The concentration of salt is 2g / L; the mass ratio of dopamine hydrochloride and polyethyleneimine is 2:1;

[0047] (2) Take 0.2 g of silica and 90 mL of toluene, and after mixing, ultrasonically disperse for 25 min, add 0.2 g of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate and 10 mL of toluene mixed solution under an argon atmosphere, 72 The reaction was stirred at ℃ for 4.5 h, collected by centrifugation, washed and dried to obtain filler silica;

[0048] Take 100g of tung oil, 14.3g of ethylene glycol and 0.6g of zinc acetate, heat up to 125°C under nitrogen, react for 8.5h, collect the product, wash with deionize...

Embodiment 3

[0056] A water-based ink-based green printing process for packaging boxes, comprising the following steps:

[0057] (1) Take dopamine hydrochloride, polyethyleneimine and Tris-HCl and mix them evenly, the pH is 8.5, soak and immerse the packaging box substrate for 3 hours, take it out, wash and dry to obtain a pretreated substrate; dopamine hydrochloride The concentration is 2g / L; the mass ratio of dopamine hydrochloride and polyethyleneimine is 2:1;

[0058] (2) Take 0.2 g of silica and 90 mL of toluene, and after mixing, ultrasonically disperse for 30 min, add 0.2 g of isopropyl tris(dioctyl pyrophosphate acyloxy) titanate and 10 mL of toluene mixed solution under an argon atmosphere, 75 The reaction was stirred at ℃ for 4 h, collected by centrifugation, washed and dried to obtain filler silica;

[0059] Take 100 g of tung oil, 14.3 g of ethylene glycol and 0.6 g of zinc acetate, raise the temperature to 130 ° C under nitrogen, react for 9 h, collect the product, wash with ...

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Abstract

The invention discloses a green printing process for packaging boxes based on water-based ink. The ink selected in the conventional printing process generally uses water-based polyurethane as a connecting material, but the printing ink prepared by this method has poor water resistance, is easy to be hydrolyzed, and greatly The printing effect is affected, so this application first optimizes and modifies the water-based ink, and introduces a plant-based derivative into the polyurethane. The tung oil is a tung oleate of glycerol, which contains a conjugated double bond structure. The introduction of this structure can greatly improve the water-based ink. The water resistance and chemical resistance of the ink, the comprehensive performance of the water-based ink are improved, and the printing effect is better. The process design of the application is reasonable, the operation is simple, the surface of the printed packaging box has excellent water resistance, and the water-based ink has excellent water resistance, abrasion resistance and chemical resistance, which greatly ensures the surface printing effect of the packaging box and has high practicality. sex.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a green printing process for packaging boxes based on water-based inks. Background technique [0002] Packaging printing is the printing of various packaging materials as the carrier, and printing decorative patterns, patterns or words on the packaging to make the product more attractive or more explanatory, thereby transmitting information and increasing sales. Function; including the printing of packaging cartons, packaging bottles, packaging cans, etc. Based on the requirements of environmental protection, environmentally friendly materials and processes need to be used in the printing process. The printing process produces less pollution, saves resources and energy, and is easy to recycle and reuse after the printed matter is discarded. It can be naturally degraded and has little impact on the ecological environment. Printing method . [0003] Nowadays, the ink selected in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/28B31B50/88
CPCD21H21/28B31B50/88
Inventor 石其明
Owner 东莞印想文化科技有限公司
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