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An environmentally friendly green printing process for corrugated cardboard

A corrugated cardboard, green technology, applied in the field of corrugated cardboard, can solve the problems of peeling off the face paper or re-shredding, complex process, high cost, etc.

Active Publication Date: 2020-04-10
广东晋泽科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an environmentally friendly green printing process for corrugated cardboard, which is directly compounded with a waterproof colloid layer on the surface of the corrugated cardboard, which can be waterproof, and the soluble ink printed on the surface of the waterproof colloid layer can be printed in hot water at 50-55 ° C. Dissolved under the action, due to the waterproof isolation effect of the waterproof colloid layer, the ink will not penetrate into the corrugated cardboard after being dissolved. At this time, the printed logo can be removed after wiping with a wet towel, so that the corrugated box can be directly reused, which is not only simple in process but also saves cost. It solves the problem that the existing corrugated cardboard needs to be peeled off the surface paper or re-pulverized to prepare it when it is reused, which is not only complicated in process, but also high in cost

Method used

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  • An environmentally friendly green printing process for corrugated cardboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation process of waterproof colloid is as follows:

[0019] ① Prepare a sodium hydroxide solution with a concentration of 0.1mol / L, then add 24g of catechol solid into it, stir and dissolve to obtain 120mL of alkaline catechol solution;

[0020] ②Measure two-thirds of the alkaline catechol solution in step ①, raise the temperature to 55°C, add 80g of oxidized starch solution to it, stir while adding dropwise, and stir at constant temperature for 20-30min to obtain the primary crosslinking solution;

[0021] ③Keep the temperature constant, add the remaining alkaline catechol solution into the primary colloid solution, stir evenly, add 14g of glutaraldehyde solution, and stir at constant temperature for 50min to obtain the secondary crosslinking solution;

[0022] ④Raise the temperature to 60°C and slowly evaporate the solvent water in the secondary cross-linking solution until the secondary cross-linking solution is a viscous paste.

Embodiment 2

[0024] An environmentally friendly green printing process for corrugated cardboard, the specific printing process is as follows:

[0025] In the first step, add the prepared waterproof colloid into a high-pressure spray gun, spray it evenly on the surface of the corrugated cardboard, and then dry it in a drying room at 45°C until the waterproof colloid is solidified. At this time, a waterproof colloid layer is formed on the surface of the corrugated cardboard The thickness of the waterproof colloid layer is 0.8-1mm; the waterproof colloid layer softens when the temperature reaches above 60°C and has certain bonding properties;

[0026] The second step is to print on the waterproof colloidal layer on the surface of the corrugated cardboard by a cardboard printing machine. During the printing process, the temperature of the printing roller is controlled at 65°C. At this time, the waterproof colloidal layer has a certain viscosity and can fix the ink; the printing process The ink...

Embodiment 3

[0029] An environmentally friendly green printing process for corrugated cardboard, the specific printing process is as follows:

[0030] In the first step, add the prepared waterproof colloid into a high-pressure spray gun, spray it evenly on the surface of the corrugated cardboard, and then dry it in a drying room at 45°C until the waterproof colloid is solidified. At this time, a waterproof colloid layer is formed on the surface of the corrugated cardboard The thickness of the waterproof colloid layer is 0.8-1mm; the waterproof colloid layer softens when the temperature reaches above 60°C and has certain bonding properties;

[0031]The second step is to print on the waterproof colloidal layer on the surface of the corrugated cardboard by a cardboard printing machine. During the printing process, the temperature of the printing roller is controlled at 65°C. At this time, the waterproof colloidal layer has a certain viscosity and can fix the ink; the printing process The ink ...

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Abstract

The invention discloses an environment-friendly process for printing a corrugated board. The process comprises the following steps: 1, preparing waterproof colloid; 2, adding the prepared waterproof colloid into a high-pressure spray gun, uniformly spraying to the surface of a corrugated board, drying in a drying chamber at 45 DEG C until the waterproof colloid is cured, and forming a waterproof colloid layer on the surface of the corrugated board; 3, printing on the waterproof colloid layer on the surface of the corrugated board with a board printer; and 4, drying the printed corrugated boardin the drying chamber. According to the process, the waterproof colloid layer is directly compounded to the surface of the corrugated board for waterproofing, soluble ink printed on the surface of the waterproof colloid layer can be dissolved under the effect of hot water to achieve an effect of waterproof isolation with the waterproof colloid layer, so that the ink cannot infiltrate into the corrugated board after being dissolved, the printed label can be removed by wiping with a wet towel, and the corrugated board can be directly recycled. The process is simple, and cost can be saved.

Description

technical field [0001] The invention belongs to the field of corrugated cardboard, and relates to an environmentally friendly green printing process for corrugated cardboard. Background technique [0002] Corrugated cardboard is used to combine to prepare corrugated boxes. Corrugated boxes have become the main packaging containers for paper products due to their excellent cushioning protection performance, good printing display and environmental protection advantages, and have been widely used in the transportation of various commodities. [0003] In order to clarify the types of goods and warn the safety performance of goods, signs are often printed on the surface of corrugated boxes to distinguish the types of goods and warn the dangerous performance of goods. The printed signs on the surface of corrugated boxes cannot be removed after use, so During recycling, peel off the surface paper on the surface of the corrugated box and compound the new paper again, and then print....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M5/00B41M1/00B41M7/00C09D11/03C09D11/14
CPCB41M1/00B41M5/0011B41M7/0009B41M7/009C09D11/03C09D11/14
Inventor 林玲
Owner 广东晋泽科技有限公司
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