Aqueous printing ink with flame retardant effect and preparation method thereof

A printing ink and water-based technology, which is applied in the field of water-based printing ink and its preparation, can solve the problem that the safety performance of printing ink cannot meet the needs of consumers, and achieve the effects of reducing the risk of inflammability and explosion, the availability of raw materials, and the improvement of drying speed.

Inactive Publication Date: 2019-03-22
陈丽娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the problem that the current printing ink cannot meet the needs of consumers in terms of safety performance, the present invention provides a water-based printing ink with a flame-retardant effect and a preparation method thereof

Method used

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  • Aqueous printing ink with flame retardant effect and preparation method thereof

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preparation example Construction

[0049] The application also provides the preparation method of the above-mentioned water-based printing ink with flame retardant effect, comprising the following steps:

[0050] (1) Add water-based epoxy resin and modified acrylic resin to the mixer, and stir at a rate of 400-600 rpm at a temperature of 50-60°C for 30-50 minutes to obtain a premix;

[0051](2) Put calcite powder and inorganic pigments into the mixer for mixing and stirring, the stirring temperature is 35-40°C, the stirring rate is 500-600 rpm, and after stirring for 20-30 minutes, the mixed slurry is ground by a three-roller machine, Grind to particle size less than 10 μm , to obtain the mixed color paste;

[0052] (3) Put the pre-mixture obtained in step (1) and the mixed color paste obtained in step (2) into the reactor together, and then add leveling agent and defoamer to the reactor at a speed of 1000 to 1200 rpm Stir at a high speed for 60-80 minutes to obtain rough printing ink;

[0053] (4) Add penet...

Embodiment 1

[0058] Preparation of modified acrylic resin: In a reactor, mix methyl methacrylate, 2-ethylhexyl acrylate, and hydroxyvinyltrimethoxysilane in a molar ratio of 6:3:1, and heat the reactor , when the temperature reaches 65°C, keep stirring for 35 minutes, then raise the temperature to 85°C, add an appropriate amount of initiator, continue to keep stirring at this temperature for 55 minutes, adjust the pH value of the solution to 7.5 after the heat preservation is completed, and then filter and dry A modified acrylic resin was obtained.

[0059] Prepare raw materials according to the following weight percentages:

[0060] Waterborne epoxy resin 30%

[0061] Modified acrylic resin 15%

[0062] Calcite powder 3%

[0063] Inorganic Pigment 2.5%

[0064] Leveling agent 0.5%

[0065] Defoamer 0.5%

[0066] The balance of deionized water;

[0067] Preparation of water-based printing ink with flame retardant effect:

[0068] (1) Add water-based epoxy resin and modified acrylic...

Embodiment 2

[0073] Preparation of modified acrylic resin: In a reactor, mix methyl methacrylate, 2-ethylhexyl acrylate, and hydroxyvinyltrimethoxysilane in a molar ratio of 6:3:1, and heat the reactor , when the temperature reaches 67.5°C, keep stirring for 40 minutes, then raise the temperature to 86.5°C, add an appropriate amount of initiator, continue to keep stirring at this temperature for 60 minutes, adjust the pH value of the solution to 8.0 after the heat preservation is completed, and then filter and dry A modified acrylic resin was obtained.

[0074] Prepare raw materials according to the following weight percentages:

[0075] Waterborne epoxy resin 40%

[0076] Modified acrylic resin 20%

[0077] Calcite powder 4%

[0078] Inorganic Pigment 3.5%

[0079] Leveling agent 1%

[0080] Defoamer 1%

[0081] The balance of deionized water;

[0082] Preparation of water-based printing ink with flame retardant effect:

[0083] (1) Add water-based epoxy resin and modified acrylic...

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Abstract

The invention discloses aqueous printing ink with a flame retardant effect and a preparation method thereof. Raw materials of the aqueous printing ink with the flame retardant effect are prepared fromwaterborne epoxy resin, modified acrylic resin, calcite in powder, an inorganic pigment, a flatting agent, a defoamer and deionized water. Meanwhile, the invention discloses a corresponding preparation method which comprises the following steps: adding the waterborne epoxy resin and the modified acrylic resin into a stirrer to prepare a pre-mixture; preparing mixed color paste from the calcite inpowder and the inorganic pigment; and finally, jointly stirring the two in a reaction kettle with the flatting agent and the defoamer and dispersing and grinding the mixture to obtain a finished product printing ink. The aqueous printing ink with the flame retardant effect solves the problem of volatilization of a solvent. Compared with solvent printing ink, the printing ink is more healthy and environmentally friendly. By adding the modified acrylic resin, water molecules are more easily diffused while improving the adhesive force of the pigment. An alcohol solvent is not added to improve the drying speed, so that the flammable and combustible risk is reduced, and the printing ink has good safety.

Description

technical field [0001] The invention relates to the technical field of printing inks, in particular to a water-based printing ink with a flame-retardant effect and a preparation method thereof. Background technique [0002] In the field of gravure printing in my country, in order to achieve a suitable printing effect, the use of solvents is inevitable. Olefins, halogenated hydrocarbons, heterocyclic compounds, nitrogen-containing compounds and sulfur-containing compounds, etc.) as the medium, are what we often call organic solvents, so inks that use organic solvents as ink components are what we often call solvent-based inks . A large amount of hydrocarbons discharged during the use of solvent-based inks have caused great pollution to the atmosphere, and have increasingly brought about environmental degradation. Moreover, solvent-based inks are flammable and explosive due to the use of organic solvents, and irreparable losses will be caused if there is carelessness during op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/102C09D11/107C09D11/03
CPCC09D11/03C09D11/102C09D11/107
Inventor 陈丽娟
Owner 陈丽娟
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