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Universal water-based gravure composite printing ink and preparation method thereof

A general-purpose, water-based technology, applied in inks, applications, household appliances, etc., can solve problems such as complex production processes, and achieve the effect of simple process, uniform dispersion, and good hiding power

Active Publication Date: 2015-07-15
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the obtained water-based ink has strong adhesion fastness and good printing effect on the plastic film, the preparation process of the ink requires several feeding and grinding, and the production process is complicated.

Method used

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  • Universal water-based gravure composite printing ink and preparation method thereof
  • Universal water-based gravure composite printing ink and preparation method thereof
  • Universal water-based gravure composite printing ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Preparation of polyurethane emulsion:

[0034] (1) 24kg 3-isocyanato methylene-3,5,5-trimethylcyclohexyl isocyanate, 74kg polyester polyol polycondensed by phthalic acid and ethylene glycol, diethylene glycol, 0.3 The dibutyltin dilaurate solution of kg (concentration is 1wt%, solvent is dibutyl phthalate) joins in the reactor I, is heated to 90 ℃, adds 2kg dimethylolpropionic acid after reacting for 1 hour, continues React for 2 hours, then add 2kg of triethylamine for neutralization, and stir for 5 minutes;

[0035] (2) Add 233 kg of deionized water and 4 kg of ethylenediamine in the reactor II, stir evenly, pour the liquid in the reactor I into the reactor II, stir at high speed for 1 hour, and finally obtain a solid content of 31%. polyurethane emulsion.

[0036] 2. Preparation of polyacrylate emulsion:

[0037] (1) Add 30kg of solid acrylic acid to a reaction kettle with 60kg of deionized water, keep stirring and heat up to 80°C, gradually add triethylamine, ...

Embodiment 2

[0047] 1. Preparation of polyurethane emulsion:

[0048] (1) 20kg cyclohexane dimethylene diisocyanate, 74kg polycondensed polyester polyol by adipic acid, trimethylolpropane and propylene glycol, 0.3kg dibutyltin dilaurate (concentration is 0.09wt%, solvent Dibutyl phthalate) was added to the reaction kettle I, heated to 90°C, reacted for 1.5 hours, then added 6kg of dimethylolpropionic acid, and continued to react for 2 hours; then added 6kg of triethylamine for neutralization, Stir for 7 minutes;

[0049] (2) Add 233kg of deionized water and 2.5kg of 3,5-dimethylthiomethyldiamine to the reactor II, stir evenly, pour the liquid in the reactor I into the reactor II, and stir at a high speed After 1 hour, a polyurethane emulsion with a solid content of 31% was finally obtained.

[0050] 2. Preparation of polyacrylate emulsion:

[0051] (1) Add 50kg of solid acrylic acid to a reaction kettle with 80kg of deionized water, stir continuously and heat up to 70°C, gradually add a...

Embodiment 3

[0061] 1. Preparation of polyurethane emulsion:

[0062] (1) 15kg of 3-isocyanate methylene-3,5,5-trimethylcyclohexyl isocyanate, 74kg of polyester polyol polycondensed by adipic acid, phthalic acid, ethylene glycol and propylene glycol, 0.3kg of Dibutyltin dilaurate (concentration is 1.1wt%, solvent is dibutyl phthalate) joins in reaction kettle I, is heated to 90 ℃, reacts for 1 hour; Hydroxymethylbutyric acid continued to react for 2 hours; Add 9kg of triethylamine for neutralization and stir for 10 minutes;

[0063] (2) Add 233 kg of deionized water and 4 kg of diethyltoluenediamine to the reaction kettle II, stir evenly, pour the liquid in the reaction kettle I into the reaction kettle II, stir at high speed for 1.5 hours, and finally obtain the solid content 31% polyurethane emulsion.

[0064] 2. Preparation of Polyacrylate Emulsion

[0065] (1) Add 50kg of solid acrylic acid into a reaction kettle with 60kg of deionized water, keep stirring and heat up to 80°C, gradu...

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Abstract

The invention discloses universal water-based gravure composite printing ink suitable for various plastic thin film printing substrates, and a preparation method thereof. The universal water-based gravure composite printing ink is prepared from polyurethane emulsion, polyacrylate emulsion, a pigment, a wetting and dispersing agent, a curing agent and deionized water. The universal water-based gravure composite printing ink provided by the invention is green and economical, and has the advantages of good adhesion, good coverage, uniform distribution, simple process, and high versatility. The printing ink is suitable for printing of packaging materials with various plastic thin film printing substrates.

Description

technical field [0001] The invention belongs to the technical field of water-based ink preparation, and in particular relates to a general-purpose water-based gravure composite ink suitable for various plastic film printing substrates and a preparation method thereof. Background technique [0002] Plastic film water-based ink is usually composed of binders, solvents, pigments, auxiliary agents and other components. The binder is resin, which is the "heart" of the ink. The components of the binder directly affect the adhesion, drying speed and stability of the ink, and also affect the gloss and printability of the ink. The main solvent of plastic film water-based ink is water, which is clean and pollution-free after volatilization. Users are safe, healthy and non-toxic during use. At the same time, water-based ink does not accumulate static electricity, and the production site is safe. [0003] Patent CN101284966A discloses a polyurethane-based water-based ink and a preparat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/102C09D11/107
CPCC09D11/102C09D11/107
Inventor 唐新颖王旭朋宋延林杨明刘云霞金小玲秦明明
Owner INST OF CHEM CHINESE ACAD OF SCI
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