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Temperature-resistant water-based glazing oil for printing and preparation method of temperature-resistant water-based glazing oil

A water-based varnish, temperature-resistant technology, applied in the field of varnish, can solve the problems that the temperature resistance and friction resistance cannot meet our needs, and the practical application is inconvenient, and achieve excellent waterproof and anti-fouling performance, excellent adhesion Performance and friction resistance, the effect of reasonable process design

Active Publication Date: 2022-05-13
佛山市顺德区威豪科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nowadays, when water-based varnish is applied to the surface of printing paper, its temperature resistance and friction resistance cannot meet our needs, which brings Inconvenient, in response to this situation, we disclose a temperature-resistant water-based varnish for printing and its preparation method to solve this problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method for temperature-resistant water-based varnish for printing, comprising the following steps:

[0038] (1) Take tetramethyldisiloxane, 1,3,5,7-tetrahydro-1,3,5,7-tetramethylcyclotetrasiloxane, and dissolve 1,4-dioxane, Mix and stir until uniform to obtain solution A; the molar ratio of tetramethyldisiloxane to 1,3,5,7-tetrahydro-1,3,5,7-tetramethylcyclotetrasiloxane is 4 :1;

[0039] Take chloroplatinic acid and isopropanol solution, mix well, add eugenol and 1,4-dioxane, stir and react for 30 minutes under nitrogen atmosphere, then add solution A, heat up to 65°C, keep warm for 24 hours, and the reaction is over Finally, remove 1,4-dioxane, wash and dry to obtain modified silicone; the molar ratio of eugenol and siloxane to total monomers is 2:1;

[0040] (2) Take silicon dioxide, place it in ethanol solution, and disperse it ultrasonically for 30 minutes to obtain solution B;

[0041] Take silane coupling agent, absolute ethanol and deionized wat...

Embodiment 2

[0047] A preparation method for temperature-resistant water-based varnish for printing, comprising the following steps:

[0048] (1) Take tetramethyldisiloxane, 1,3,5,7-tetrahydro-1,3,5,7-tetramethylcyclotetrasiloxane, and dissolve 1,4-dioxane, Mix and stir until uniform to obtain solution A; the molar ratio of tetramethyldisiloxane to 1,3,5,7-tetrahydro-1,3,5,7-tetramethylcyclotetrasiloxane is 5 :1.

[0049] Take chloroplatinic acid and isopropanol solution, mix well, add eugenol and 1,4-dioxane, stir and react for 35 minutes under nitrogen atmosphere, then add solution A, heat up to 68°C, keep warm for 22 hours, and the reaction is over Finally, remove 1,4-dioxane, wash and dry to obtain modified silicone; the molar ratio of eugenol and siloxane to total monomers is 2:1;

[0050] (2) Take silicon dioxide, place it in an ethanol solution, and disperse it ultrasonically for 35 minutes to obtain solution B;

[0051] Take silane coupling agent, absolute ethanol and deionized ...

Embodiment 3

[0057] A preparation method for temperature-resistant water-based varnish for printing, comprising the following steps:

[0058] (1) Take tetramethyldisiloxane, 1,3,5,7-tetrahydro-1,3,5,7-tetramethylcyclotetrasiloxane, and dissolve 1,4-dioxane, Mix and stir until uniform to obtain solution A; the molar ratio of tetramethyldisiloxane to 1,3,5,7-tetrahydro-1,3,5,7-tetramethylcyclotetrasiloxane is 6 :1.

[0059] Take chloroplatinic acid and isopropanol solution, mix well, add eugenol and 1,4-dioxane, stir and react for 40 minutes under nitrogen atmosphere, then add solution A, heat up to 70°C, keep warm for 20 hours, and the reaction is over Finally, remove 1,4-dioxane, wash and dry to obtain modified silicone; the molar ratio of eugenol and siloxane to total monomers is 2:1;

[0060] (2) Take silicon dioxide, place it in ethanol solution, and disperse it ultrasonically for 40 minutes to obtain solution B;

[0061] Take silane coupling agent, absolute ethanol and deionized wat...

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Abstract

The invention discloses a temperature-resistant water-based glazing oil for printing and a preparation method thereof. The temperature-resistant water-based glazing oil comprises the following components: organic silicon modified acrylate emulsion, modified organic silicon, a surfactant, modified silicon dioxide, deionized water, a defoaming agent and the like. According to the present invention, the modified organic silicon is added, and the modified organic silicon is mainly prepared through the reaction of tetramethyldisiloxane, 1, 3, 5, 7-tetrahydro-1, 3, 5, 7-tetramethylcyclotetrasiloxane, chloroplatinic acid, isopropanol, eugenol, and 1, 4-dioxane. According to the temperature-resistant water-based glazing oil for printing and the preparation method thereof, the process design is reasonable, the operation is simple, the prepared glazing oil has excellent adhesion performance and friction resistance, the upper surface is in a hydrophobic state, the waterproof and antifouling performance is excellent, and the thermal stability is excellent.

Description

technical field [0001] The invention relates to the technical field of varnishes, in particular to a temperature-resistant water-based varnish for printing and a preparation method thereof. Background technique [0002] Glazing oil refers to a liquid that is coated on the surface of printed matter to increase gloss, abrasion resistance and water resistance. Varnishes include water-based varnishes, oil-based varnishes, UV varnishes, and alcohol-soluble varnishes. At present, water-based varnish is the most widely used in China, because it has very good environmental protection performance. [0003] Water-based varnish is mainly composed of water-soluble resin and water-dispersible resin, which has the advantages of fast drying speed, good film transparency, stable performance, wide equipment adaptability, good wear resistance and flatness of the glazing surface, and suitable for post-press processing. It is widely used in the surface coating of printing paper due to its cha...

Claims

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Application Information

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IPC IPC(8): D21H19/40D21H19/56D21H19/44D21H19/62D21H21/24D21H21/52
CPCD21H19/40D21H19/56D21H19/44D21H19/62D21H21/24D21H21/52
Inventor 宋伟朱超云李冰峰胡虹
Owner 佛山市顺德区威豪科技发展有限公司
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