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Novel environment-friendly odorless printing ink and preparation method thereof

A printing ink and environmental protection technology, applied in the field of new environmentally friendly odorless printing ink and its preparation, can solve the problems of poor ink balance performance and poor printing effect, etc.

Pending Publication Date: 2020-12-01
赵元梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of poor water-ink balance performance of water-based inks and UV inks in existing printing inks, which lead to poor printing effects during product use, and provide a new type of environmentally friendly and odorless printing ink and its preparation method

Method used

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  • Novel environment-friendly odorless printing ink and preparation method thereof
  • Novel environment-friendly odorless printing ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Synthesis of polyesterimide resin:

[0046] In parts by weight, successively take 60 parts of dibasic ester, 80 parts of ethylene glycol and 3 parts of Cyclic, after mixing, carry out a transesterification reaction to obtain a polyester resin containing hydroxyl groups at both ends;

[0047] After mixing trimellitic anhydride and diamine at a mass ratio of 3:1, heat and reflux at a temperature of 75°C for 6 hours, and discharge the material to obtain an imine dibasic acid containing carboxyl groups at both ends;

[0048] After mixing the polyester resin containing hydroxyl groups at both ends and the imine dibasic acid containing carboxyl groups at both ends in a molar ratio of 1:1, carry out a high-temperature polycondensation reaction at a temperature of 85°C for 3 hours, and then The polycondensation product and the solvent are mixed evenly at a mass ratio of 1:5, and butyl orthophthalate with a mass ratio of 1% of the polycondensation product is added, and heated an...

Embodiment 2

[0060] Synthesis of polyesterimide resin:

[0061] In parts by weight, successively take 70 parts of dibasic ester, 85 parts of ethylene glycol and 5 parts of Cyclic, and after mixing, carry out transesterification reaction to obtain a polyester resin containing hydroxyl groups at both ends;

[0062] After mixing trimellitic anhydride and diamine at a mass ratio of 4:1, heat and reflux at a temperature of 78°C for 7 hours, and discharge the material to obtain an imine dibasic acid containing carboxyl groups at both ends;

[0063] After mixing the polyester resin containing hydroxyl groups at both ends and the imine dibasic acid containing carboxyl groups at both ends in a molar ratio of 1:1, carry out a high-temperature polycondensation reaction at a temperature of 90°C for 4 hours, and then The polycondensation product and the solvent were mixed evenly at a mass ratio of 1:6, and butyl orthophthalate was added with 3% mass of the polycondensation product, and heated and stirr...

Embodiment 3

[0075] Synthesis of polyesterimide resin:

[0076] In parts by weight, 80 parts of dibasic esters, 90 parts of ethylene glycol and 10 parts of Sec are taken successively, and after mixing, transesterification is carried out to obtain a polyester resin containing hydroxyl groups at both ends;

[0077] After mixing trimellitic anhydride and diamine at a mass ratio of 5:1, heat and reflux at a temperature of 85°C for 8 hours, and discharge the material to obtain an imine dibasic acid containing carboxyl groups at both ends;

[0078] After mixing the polyester resin containing hydroxyl groups at both ends and the imine dibasic acid containing carboxyl groups at both ends in a molar ratio of 2:1, carry out a high-temperature polycondensation reaction at a temperature of 95°C for 5 hours, and then The polycondensation product and the solvent are mixed uniformly at a mass ratio of 1:8, and butyl orthophthalate with a mass ratio of 5% of the polycondensation product is added, and the ...

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Abstract

The invention belongs to the technical field of printing coatings, and particularly relates to a novel environment-friendly odorless printing ink and a preparation method thereof. The product developed by the invention comprises, by weight,30-60 parts of a pigment, 10-20 parts of polyesterimide resin, 10-15 parts of nano-graphene oxide, 3-5 parts of a surfactant and 1-5 parts of a defoaming agent.The polyester imide resin takes n-butyl phthalate as a cross-linking agent, and the chain length between adjacent cross-linking points is greater than the length of a chain segment under the same condition; and oxidized starch particles are embedded between the nano-graphene oxide layers. In addition, sulfonated polyaniline is also adsorbed between the graphene oxide layers; at least part of carboxyl groups in the oxidized starch particles are oxidized into aldehyde groups; and the oxidized starch particles are connected with hydroxyl groups in an interlayer conjugate region of the nano-graphene oxide through aldehyde groups to form chemical bonding. The obtained product is excellent in ink-water balance performance and good in printing effect.

Description

technical field [0001] The invention belongs to the technical field of printing coatings. More specifically, it relates to a novel environmentally friendly and odorless printing ink and a preparation method thereof. Background technique [0002] As one of the five major printing elements, ink is an essential raw material. At present, the environmentally friendly inks that have emerged mainly include water-based inks, UV-curable inks and vegetable inks. [0003] Water-based ink uses water as the carrier, has low viscosity, good fluidity, and does not use volatile organic solvents, which is conducive to environmental protection and is an environmentally friendly and pollution-free "green" printing material. The solvent used is water or alcohol, which significantly reduces the emission of VOCs, not only prevents air pollution, but also eliminates the harm of toxic and harmful substances in solvent-based inks to the human body and the pollution of packaged goods. Therefore, w...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/03C08G73/16
CPCC09D11/102C09D11/03C08G73/16
Inventor 赵元梅
Owner 赵元梅