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Preparation method of adhesive-free polymerized colorful emulsion particles used for inkjet printing

An inkjet printing, adhesive-free technology, applied in the fields of fine chemicals and materials science, can solve problems such as complex processes and achieve the effect of improving color fastness

Active Publication Date: 2018-04-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no matter which method is used, the production process is relatively complicated, and the most important thing is that it cannot fundamentally solve the problems existing in pigment ink printing.

Method used

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  • Preparation method of adhesive-free polymerized colorful emulsion particles used for inkjet printing
  • Preparation method of adhesive-free polymerized colorful emulsion particles used for inkjet printing
  • Preparation method of adhesive-free polymerized colorful emulsion particles used for inkjet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Dissolve 8.28 g (0.025 mol) of Disperse Red 60 and 3.5 ml (0.025 mol) of triethylamine in a reaction flask with 20 mL of tetrahydrofuran. A mixed solution of 3.62 g of acryloyl chloride (0.04 mol) and 10 ml of tetrahydrofuran was slowly added dropwise with a constant pressure dropping funnel under the condition of an ice bath. React in an ice bath for 5h, monitor the whole reaction process with thin-layer chromatography, the developer used is 1:8 ethyl acetate / petroleum ether, fully wash with saturated sodium bicarbonate solution after the reaction, and precipitate to obtain crude product, the obtained crude product was fully washed with absolute ethanol to obtain a red powdery solid product, which was dried for use. A mixed solution of 5% DNS-86 solution and 0.1125g of co-emulsifier HD was emulsified at high speed to form a uniform dispersion, and then 7.5g of styrene, 7.5g of ethyl acrylate, and 0.225g of modified disperse red 60 were dissolved Then slowly add it to ...

Embodiment 2

[0036] Dissolve 7.45 g (0.025 mol) of disperse blue E-BR and 2.01 mL of pyridine in 20 mL of tetrahydrofuran in a reaction flask. A mixed solution of 4.18 g of methacryloyl chloride (0.04 mol) and 10 mL of tetrahydrofuran was slowly added dropwise using a constant pressure dropping funnel at about 0°C. React in an ice bath for 5h, monitor the whole reaction process with thin-layer chromatography, the developer used is 1:8 ethyl acetate / petroleum ether, fully wash with saturated sodium bicarbonate solution after the reaction, and precipitate to obtain crude product, the obtained crude product was fully washed with absolute ethanol to obtain a blue powdery solid product, which was dried for use. A mixed solution of 10% DNS-86 solution and 0.25g of co-emulsifier CA was emulsified at high speed to form a uniform dispersion, and then 3.75g of methyl methacrylate, 7.5g of methyl acrylate, and 0.4g of modified After the blue E-BR dissolves, slowly add it to the prepared above soluti...

Embodiment 3

[0038] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Similar to Example 1, the difference is that the amount of the modified pigment molecule is 0.03 g, and the mass ratio of the hard monomer and the soft monomer is changed to 1.2:1. The particle size of the prepared colored latex particles is about 200nm. Latex particles have good film-forming properties, and the printing fastness is grade three.

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Abstract

The invention discloses a preparation method of an adhesive-free polymerized colorful emulsion particles used for inkjet printing, and belongs to the technical field of fine chemical engineering and material scientific. According to the preparation method, a pigment is modified so as to introduce carbon-carbon double bonds, copolymerization cladding with a monomer with film forming performance iscarried out so as to obtain ultrafine cladded pigment molecules; and the ultrafine cladded pigment molecules, a water soluble cosolvent, and a surfactant are prepared into the pigment ink used for inkjet printing. The pigment is subjected to polymerization after modification, so that the ink stability and durability are better, the pigment surface monomer possesses certain film forming performance, so that the color fastness of obtained printed fabric is improved.

Description

technical field [0001] The invention relates to a method for preparing adhesive-free, polymerized colored latex particles for inkjet printing, which belongs to the technical fields of fine chemical industry and material science. Background technique [0002] Traditional printing mainly uses dyes and pigments to print fabrics after pulping, which has low clarity, poor versatility, and serious pollution. Compared with traditional printing, inkjet printing technology is a brand-new printing method, which abandons the complicated process of plate making in traditional printing, and automatically controls and drives inkjet printing machines to directly print ink onto textiles and other substrates through computer scanning patterns. on the material. It improves the printing accuracy, realizes small-batch, multi-variety, and multi-color printing, and solves the problems of traditional printing such as large area and serious pollution, so it has broad development prospects. In the...

Claims

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Application Information

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IPC IPC(8): D06P1/20D06P5/30
Inventor 付少海李敏杨毅王春霞张丽平
Owner JIANGNAN UNIV
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