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A kind of reactive and thermosensitive microgel modified water-based UV curing ink and preparation method thereof

A microgel and reactive technology, applied in the field of water-based UV curable ink and its preparation, can solve the problems of affecting the production efficiency of printed products, restricting the development of water-based ink, slow drying speed of water-based ink, etc., and achieves improvement in properties such as ink film hardness , Improve the ink solid content, the effect of fast drying

Active Publication Date: 2022-01-25
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Environmentally friendly inks are mainly divided into two types, one is UV curable inks, because they hardly produce any organic volatile compounds (VOC) or solvents, the US Environmental Protection Agency believes that UV curable inks are a green technology that is considered superior to traditional Solvent-based ink system; UV curing ink requires the versatility and high efficiency of UV curing technology to make it widely used, but the reactive diluent has certain physiological toxicity and volatility; most of the existing environmentally friendly inks are water-based inks, That is, water is used as a solvent to avoid the generation of VOCs. However, compared with traditional oil-based inks, water-based inks dry slowly, which will affect the production efficiency of printed products, thus limiting the development of water-based inks.

Method used

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  • A kind of reactive and thermosensitive microgel modified water-based UV curing ink and preparation method thereof
  • A kind of reactive and thermosensitive microgel modified water-based UV curing ink and preparation method thereof
  • A kind of reactive and thermosensitive microgel modified water-based UV curing ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of Ink polyurethane binder (1) UV curable waterborne

[0037]In the three-necular flask (35 parts) of hydroxymethylpropionic acid (35 parts), isocyanate (40), isocyanate (40), isocyanate (40), isocyanate (40), isocyanate (40) Series), dibutyl tin (0.5 parts) heated to 45 ° C and nitrogen gas protection reaction 2 h, and the value of the isocyanate in the reactant was measured until the value of the isocyanate was no longer changed, and polyethylene glycol was added. One part of the solution was raised to 65 ° C to continue to react for 6 h, and after the reaction was complete, acrylic-β-hydroxypropionyl (5 parts) was added. Cooling to normal temperature, neutralization of triethanolamine and salt; figure 2 The scanning electron microscopy of the polyurethane linker (drying) obtained by the aqueous UV cured ink obtained in Example 1, which can be seen from the figure that the polyurethane linker is present in the form of a particulate form.

[0038] (2) Preparati...

Embodiment 2

[0045] (1) Preparation of polyurethane linker with water-based UV cured ink

[0046] In the three-neck flask (36 parts) of hydroxymethylpropionic acid (36 parts), isocyanate (42), isocyanate (42), isocyanate (42) Series), dibutyl tin (0.5 parts) heating to 50 ° C and nitrogen protection reaction for 2 h, and the value of the isocyanate in the reactant is no longer changed, and polyethylene glycol is added to the reactant. 2 parts) The solution was warmed to 66 ° C for 6 h, and after the reaction was complete, acrylic-β-hydroxypropproppropprodu (7 parts) was added. Cooling to normal temperature, neutralization of triethanolamine and salt;

[0047] (2) Preparation of microgel particles having reactivity, temperature responsiveness and internal crosslinked network structure

[0048] In the three-neck flask equipped with a stirrer, a condenser and a controlled device, deionized water is added, and methyl methyl methacrylate (11 parts), T monomermethyl ether (72 parts) is added. E mono...

Embodiment 3

[0054] (1) Preparation of polyurethane linker with water-based UV cured ink

[0055] In the three-neck flask (37 parts) of hydroxymethylpropion (37 parts), isocyanate (45), isocyanate (45), isocyanate (45) Series), Dibuttin (0.5 parts) heated to 55 ° C and nitrogen gas protection reaction for 2 h, and the value of the isocyanate in the reactant was measured until the value of the nitric acid was not changed, and polyethylene glycol was added. Thirty) The solution was warmed to 67 ° C to continue to react for 6 h, and after the reaction was complete, acrylic-β-hydroxypropproppropprodu (8 parts) was added. Cooling to normal temperature, neutralization of triethanolamine and salt;

[0056] (2) Preparation of microgel particles having reactivity, temperature responsiveness and internal crosslinked network structure

[0057] In a three-neck flask equipped with a stirrer, a condenser and a controlled device, deionized water is added, and hydroxyethyl methacrylate (12 parts), T monomer N...

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Abstract

The invention belongs to the field of macromolecular water-based UV curing ink, and in particular relates to a reactive and temperature-sensitive microgel-modified water-based UV curing ink and a preparation method thereof. It is only necessary to prepare reactive and temperature-responsive microgel particles with a cross-linked network structure inside, and introduce them into the existing UV ink system. Through the reactive groups on the microgel network structure and other high Molecular binder components are chemically bonded to prepare water-based UV curable inks with double cross-linked network structure and temperature-sensitive properties; the addition of microgel particles of different sizes (100-500nm) can effectively improve the flow of water-based UV inks. Denaturation properties, double cross-linked network structure and reactive groups make the water-based UV ink system have excellent adhesion to the substrate; at the same time, the temperature-sensitive characteristics of the microgel can effectively solve the problem of slow drying speed of the current water-based UV ink.

Description

Technical field [0001] The present invention belongs to the field of molecular water-based UV curable inks, water-based UV curable inks involve a two crosslinked network structure, particularly to a water-based UV curable inks based on reactivity and temperature sensitive and modified microgel was prepared method. Background technique [0002] It refers to flexible packaging printing inks for printing process by the printing machine ink on "soft" packaging materials such as plastic films, bags, aluminum foil and roll wraps. The main components of the different inks can be divided into traditional solvent-based inks, solvent-free inks. In environmental protection, solve the pollution problem in ink manufacture and use of the environment, it is the most pressing issue. With the rapid development of my country's printing industry and the gradual improvement of environmental requirements, the market demand for non-solvent type ink that is environmentally friendly ink on the rise. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/101C09D11/102C09D11/107C08F220/54C08F212/08C08F220/32C08F230/08
CPCC09D11/101C09D11/102C09D11/107C08F220/54C08F212/08C08F220/325C08F230/08
Inventor 曹峥陈玉园李丹张成成骏峰刘春林吴盾
Owner CHANGZHOU UNIV
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