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High-adhesion water-based ink and preparation method thereof

A technology of water-based ink and water-based dispersant, which is applied in ink, application, household utensils, etc. It can solve the problems of poor resistance to ethanol scrubbing, low adhesion, and slow surface drying.

Active Publication Date: 2020-08-14
XIAMEN OUHUA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is, aiming at technical problems such as low adhesion of water-based ink on the plastic film, poor ethanol scrubbing resistance, slow surface drying speed and other technical problems in the prior art, a stable performance is provided. Water-based ink with high adhesion, good scrub resistance, and fast surface drying

Method used

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  • High-adhesion water-based ink and preparation method thereof
  • High-adhesion water-based ink and preparation method thereof
  • High-adhesion water-based ink and preparation method thereof

Examples

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preparation example 1

[0071] Preparation Example 1: Preparation of Modified Nano-Silica Particles

[0072] A mixed solution of absolute ethanol and water is prepared in a volume ratio of 1:1. Silica particles with a particle size of 30 nm rich in hydroxyl groups on the surface were dispersed uniformly in the above mixed solution by ultrasonic waves, an equal weight of trimethoxyvinylsilane was added to the silica particles, and the mixture was stirred at a constant temperature of 60° C. for 10 hours. The obtained emulsion is centrifuged at high speed to remove excess organosiloxane and by-products, and dried to obtain modified nano-silica particles.

preparation example 2

[0073] Preparation Example 2: Preparation of Modified Nano-Silica Particles

[0074] A mixed solution of absolute ethanol and water is prepared in a volume ratio of 1:1. The silica particles with a particle size of 20 nm rich in hydroxyl groups on the surface were dispersed uniformly by ultrasonic in the above mixed solution, and an equal weight of acryloxypropyltrimethoxysilane was added to the silica particles, and stirred at a constant temperature of 80 °C for 8 hours. . The obtained emulsion is centrifuged at high speed to remove excess organosiloxane and by-products, and dried to obtain modified nano-silica particles.

preparation example 3

[0075] Preparation example 3: Preparation of nano-silica modified core-shell self-crosslinking emulsion

[0076] 0.64g of emulsifier DSB produced by Rhodia, 100g of deionized water, 3g of modified nano-silica particles prepared in Preparation Example 1, 3g of glycidyl acrylate, 78g of methyl methacrylate, 16g The butyl acrylate was stirred uniformly at room temperature to obtain a core pre-emulsion; 0.64g of emulsifier DSB produced by Rhodia, 100g of deionized water, 4g of trimethoxyvinylsilane, 3g of acrylic acid, 15.5g of methyl methacrylate were mixed. Methyl acrylate, 77.5 g of isooctyl acrylate, and uniformly stirred at room temperature to obtain a shell pre-emulsion.

[0077] in N 2 Under the atmosphere, in the reactor equipped with thermometer, stirring device, reflux cooler, add 266g water, the emulsifier DSB produced by 1.72g Rhodia company (Rhodia), 0.5g sodium bicarbonate, 40g core pre-emulsion, Aqueous solution containing 0.1 g of sodium persulfate, stir well. T...

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Abstract

The invention discloses high-adhesion water-based ink, a preparation method thereof and application of the ink to a plastic film. The ink comprises the following components: a nano silicon dioxide modified core-shell self-crosslinking emulsion, a water-based dispersing agent, a drier, a coalescing agent, a defoaming agent and a pigment; the nano silicon dioxide modified core-shell self-crosslinking emulsion is obtained by participating in core-shell emulsion polymerization reaction of acrylate monomers through modified nano silicon dioxide particles and vinyl organosiloxane. And the water-based dispersing agent is obtained by solution polymerization of the acrylate monomers. Through compounding of the nano-silica modified core-shell self-crosslinking emulsion and the water-based dispersingagent, the ink can achieve the properties of stable performance, high adhesion to a base material, good scrubbing resistance, high surface drying speed and the like.

Description

Technical field: [0001] The invention relates to the field of water-based ink, in particular to a high-adhesion water-based ink and a preparation method thereof, as well as its application on plastic films. Background technique: [0002] With the control of environmental pollution in various countries and the enhancement of people's awareness of environmental protection and health, the use of oil-based inks with high VOCs emissions has become more and more restricted. Water-based ink (also called water-based ink) generally consists of water-based binders, water-based solvents, pigments and additives, and does not contain organic solvents. Because it has no pollution to the atmospheric environment and the printed matter itself, it is gradually replacing oil-based inks. Taking the United States as an example, 95% of flexographic printings use water-based inks, and 80% of gravure printings use water-based inks. [0003] Although water-based inks are environmentally friendly, ...

Claims

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Application Information

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IPC IPC(8): C09D11/107C09D11/03C08F292/00C08F220/32C08F220/14C08F220/18C08F220/06C08F230/08C08F220/46C08F220/20C08F212/10C08F222/02C08F220/56C08F212/14C08F2/38
CPCC09D11/107C09D11/03C08F292/00C08F220/14C08F220/1804C08F2/38C08F220/325C08F220/06C08F220/1808C08F230/085C08F220/46C08F220/20C08F220/1802C08F212/10C08F222/02C08F220/56C08F212/30Y02A50/20
Inventor 陶然陈晓聪王宝鑫卓炜洪林建彬
Owner XIAMEN OUHUA IND
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