Green printing technology for packing box

A packaging box, green technology, applied in printing, post-processing of printing, printing device and other directions, can solve the problems of high curing temperature, reduced applicability, slow ink curing, etc., to achieve simple process steps, fast film forming speed, good printing effect

Inactive Publication Date: 2018-05-04
SUZHOU TONGLI PRINTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At this stage, the inks used in the printing process of packaging boxes are mostly solvent-based inks, including chlorinated polypropylene inks, polyurethane inks, and polyacrylate inks. These inks contain a large amount of harmful solvents such as toluene and benzene, or are harmful to Other organic solvents with a large environmental burden are not conducive to environmental protection
Although water-based inks in the prior art use water as the main solvent to reduce environmental pollution, this type of ink is often at the expense of sacrificing the practicability of the ink, such as decreased adhesion of the ink, slowed ink curing, or requires a higher The curing temperature, etc., the applicability is reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Using the paper packaging box as the base material, printing includes the following steps:

[0035] S10, printing an ink on a substrate to form a printed matter. The ink is based on parts by weight and consists of the following components: 60 parts of water, 3 parts of latex binder, 3 parts of solvent, 1 part of acrylic monomer, light 0.5 part of initiator, 1 part of benzyl methacrylate, 1.5 parts of citric acid, 1.5 parts of coloring agent. Wherein, the solvent is a mixture of 2-pyrrolidone and ethyl acetate, and the volume ratio of the two is 0.1:1. The latex binder is a copolymerized acrylic latex binder, the acid value of the latex binder is 0-20 mg KOH / g, and the molecular weight is 8000. The photoinitiator is α-hydroxycyclohexyl benzophenone.

[0036] S20, use an ultraviolet light source to irradiate the printed matter until the ink forms a film. Among them, the ultraviolet light source is an ultraviolet lamp with a power of 10kw, and the irradiation time is 100s.

Embodiment 2

[0038] Using the paper packaging box as the base material, printing includes the following steps:

[0039] S10, printing an ink on a substrate to form a printed matter. The ink is based on parts by weight and consists of the following components: 70 parts of water, 8 parts of latex binder, 6 parts of solvent, 2 parts of acrylic monomer, light 1 part of initiator, 3 parts of benzyl methacrylate, 5 parts of citric acid, 6 parts of coloring agent. Wherein, the solvent is a mixture of 2-pyrrolidone and ethyl acetate, and the volume ratio of the two is 0.5:1. The latex binder is a copolymerized polyurethane latex binder. The acid value of the latex binder is 0-20 mg KOH / g, and the molecular weight is 800,000. The photoinitiator is 2,4,6-trimethylbenzoyl diphenyl phosphine oxide.

[0040] S20: Use an ultraviolet light source to irradiate the printed matter until the ink forms a film. Among them, the ultraviolet light source is an ultraviolet lamp with a power of 20kw, and the irradia...

Embodiment 3

[0042] The packaging box made of polypropylene is used as the base material, and the printing includes the following steps:

[0043] S10, printing an ink on a substrate to form a printed matter. The ink is based on parts by weight and consists of the following components: 65 parts of water, 5 parts of latex binder, 4 parts of solvent, 1 part of acrylic monomer, light 0.6 parts of initiator, 2 parts of benzyl methacrylate, 3 parts of citric acid, 4 parts of coloring agent. Wherein, the solvent is a mixture of 2-pyrrolidone and ethyl acetate, and the volume ratio of the two is 0.2:1. The latex binder is a copolymerized polyurethane latex binder. The acid value of the latex binder is 0-20 mg KOH / g and the molecular weight is 400,000. The photoinitiator is a mixture of α-hydroxycyclohexyl benzophenone and 2,4,6-trimethylbenzoyl diphenyl phosphine oxide.

[0044] S20, use an ultraviolet light source to irradiate the printed matter until the ink forms a film. Among them, the ultravio...

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Abstract

The invention discloses a green printing technology for a packing box and comprises the following steps: S10, printing ink on a substrate to form printed matter, wherein the ink is prepared from the following components in parts by weight: 60-70 parts of water, 3-10 parts of latex adhesive, 3-10 parts of solvent, 1-2 parts of acrylic monomer, 0.5-1 part of photoinitiator, 1-3 parts of benzyl methacrylate, 1-5 parts of citric acid and 0.5-6 parts of colorant; S20, irradiating the printed matter with ultraviolet light source until a film is formed by the ink. According to the green printing technology for the packing box disclosed by the invention, the technology process is simple, each component needed in an ink production is easy to obtain, water is used as the main solvent of the ink, andthe use of benzene or other components with high pollution to environment and a human body is reduced, so the technology process is green and environment friendly, and better adhesive force of the ink used in the invention is achieved, and can be adapted to the printing of various packing boxes, so the adaptability is extensive.

Description

Technical field [0001] The invention relates to the technical field of printing, in particular to a green printing process for packaging boxes. Background technique [0002] At this stage, most of the inks used in the printing process of packaging boxes are solvent-based inks, including chlorinated polypropylene inks, polyurethane inks, and polyacrylate inks. These inks contain large amounts of harmful solvents such as toluene and benzene, or Other organic solvents with greater environmental burden are not conducive to environmental protection. Although water-based inks in the prior art use water as the main solvent to reduce environmental pollution, this type of ink often sacrifices the practicality of the ink, such as reduced ink adhesion, slower ink curing, or higher requirements. The curing temperature and so on, the applicability is reduced. Summary of the invention [0003] The invention aims to solve at least one defect of the prior art and provide a packaging box printin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101C09D11/033B41M1/28B41M1/34B41M1/30B41M1/36B41M7/00
CPCB41M1/28B41M1/30B41M1/34B41M1/36B41M7/009C09D11/033C09D11/101
Inventor 黄清华庞福明
Owner SUZHOU TONGLI PRINTING TECH
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