Method for preparing nano microcapsule water-based color paste

A technology of nano-microcapsules and water-based color paste, which is applied in the direction of dyeing method, pigment paste, application, etc., to achieve the effect of enhancing thermal stability and light resistance/weather resistance

Inactive Publication Date: 2011-01-26
DYMATIC CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the above two preparation methods are still not separated from the traditional means of physical dispersion of pigments.

Method used

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  • Method for preparing nano microcapsule water-based color paste
  • Method for preparing nano microcapsule water-based color paste
  • Method for preparing nano microcapsule water-based color paste

Examples

Experimental program
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Effect test

specific Embodiment 1

[0041] 1) Preparation of nano-microcapsule core by miniemulsion polymerization

[0042] 0.65g sodium lauryl sulfate and 0.1g sodium bicarbonate were dissolved in a beaker containing 100g deionized water as the water phase; 16g styrene, 2g methyl Add methyl acrylate and 1.5g divinylbenzene to another beaker, then add 1.3g C.I. solvent red 146, 0.16g droplet nucleation accelerator and 0.08g reactive light stabilizer GW-628, after completely dissolving As the oil phase; pour the water phase into the oil phase, mechanically stir at 1200 rpm at room temperature for 20 minutes, then place it in an ultrasonic homogenizer under an ice-water bath for fine emulsification, and the ultrasonic power is 450 watts , after 15 minutes of fine emulsification, the fine emulsion was obtained; the prepared fine emulsion was put into a 250ml four-necked flask connected with stirring, thermometer, condenser and nitrogen pipe, and the temperature was raised to 60°C after first passing through nitroge...

specific Embodiment 2

[0046] 1) Preparation of nano-microcapsule core by miniemulsion polymerization

[0047] 0.5g sodium lauryl sulfate and 0.1g sodium bicarbonate were dissolved in a beaker containing 100g deionized water as the water phase; 16g styrene, 2g methyl Add methyl acrylate and 1.2g 1,4-butanediol diacrylate to another beaker, then add 1.0g C.I. solvent red H, 0.16g droplet nucleation accelerator and 0.08g reactive light stabilizer HA -R100, completely dissolved and used as the oil phase; pour the water phase into the oil phase, mechanically stir at room temperature at a speed of 1200 rpm for 20 minutes, and then place it in an ultrasonic homogenizer under an ice-water bath for fine emulsification. The ultrasonic power is 450 watts, and the fine emulsion is obtained after 12 minutes of fine emulsification; the prepared fine emulsion is put into a 250ml four-necked flask connected with stirring, thermometer, condenser and nitrogen pipe, and nitrogen gas is introduced for 15 minutes to re...

specific Embodiment 3

[0050] The characteristics of this embodiment are: according to embodiment 1, the dye in the miniemulsion polymerization reaction is changed to 1.5g C.I. Solvent Yellow 93, and all the other formulas and processes are the same. The finally obtained yellow nano-microcapsule-type water-based color paste exhibits excellent water-based dispersion properties (see Table 1), and the corresponding dyes have greatly improved light fastness / weather properties (see Table 2); from figure 2 In the TEM image, it can be found that the pigment paste particles have built a relatively complete microcapsule structure.

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Abstract

The invention relates to a method for preparing nano microcapsule water-based color paste. The method comprises the following steps of: fixing water-repellent dye which is fully dissolved in a polymeric monomer in cross-linked polymer nanoparticles in the molecular dispersion state and the dye aggregation phase state by a mini-emulsion polymerization reaction so as to obtain a pigment capsule core of a micro-capsule; and constructing a polymer shell, namely, a capsule wall with self-film forming property and self-crosslinking property at normal temperature on the surface of the capsule core by cladding polymerization reaction technology so as to obtain the nano micro-capsule color paste stably dispersed in a water medium. The nano micro-capsule water-based color paste of the invention cankeep excellent color property of the used dye and realize high durability (light resistance/weather resistance and storage stability), self-film forming property and self-crosslinking property at normal temperature; and the color paste is suitable for coloring with high-performance textile inkjet printing pigment ink, colored inkjet printing ink, water-based ink and coatings and is applied to color paste for a colored optical filter for manufacturing a liquid crystal display.

Description

technical field [0001] The invention relates to a preparation method of nanometer water-based color paste, in particular to a preparation method of nano-microcapsule-type water-based color paste. The nano-microcapsule color paste is suitable for high-performance textile inkjet printing inks, color inkjet printing inks, and color pastes for color filters used in the production of liquid crystal displays. In addition, it can also be used for water-based inks and paint coloring Wait. The invention belongs to the technical field of chemical product preparation. Background technique [0002] At present, the preparation methods of water-based colorants with nano-microcapsule structure are as follows: [0003] Barashkov et al. (Presented at Int.Conf.on Digital Printing Technologies 2001, Fort Lauderdale, US) of Radiant Color Company in the United States prepared a fluorescent nanocolor for water-based inkjet printing by using Dye-Packaging Technology. This technology uses the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00C08F257/02C08F2/44C09D11/10D06P5/30C09D11/32
Inventor 胡振锟刘钢区智明
Owner DYMATIC CHEM
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