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Method for improving resolution of inkjet printing by inducing de-infiltration of ink droplets based on external stimulus

An external stimulus and inkjet printing technology, applied in printing, ink, household appliances, etc., can solve the problems of small resolution range, poor universality of the method, cumbersome process, etc., and achieve high printing resolution and large range , low-cost effect

Active Publication Date: 2011-09-07
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although improving the nozzle and jetting principle can greatly improve the resolution, the method is not universal; substrate processing usually requires masks and precise etching to improve the resolution, which is cumbersome and costly; adjusting the composition of the ink to The process of improving resolution is simple, but there are relatively few reports at present, and the reported improvement in resolution is still small

Method used

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  • Method for improving resolution of inkjet printing by inducing de-infiltration of ink droplets based on external stimulus
  • Method for improving resolution of inkjet printing by inducing de-infiltration of ink droplets based on external stimulus
  • Method for improving resolution of inkjet printing by inducing de-infiltration of ink droplets based on external stimulus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] At room temperature (25°C), Fe with a particle size of 20 nm 3 o 4 The particles are dispersed in a polyurethane solution (20wt%) with a viscosity of 700mPa·s, Fe 3 o 4 The content of the particles in the polyurethane solution was 5 wt%. After mechanical dispersion, ultrasonication was performed for about 1 hour to obtain magnetic field responsive ink. Such as figure 1 As shown, the magnetic field-responsive ink is packed in the ink cartridge of the industrial dispensing system, equipped with a Picodot nozzle with an aperture of 150 μm. A block-shaped permanent magnet ferrite is arranged vertically above the PTFE film base material, and the magnetic field strength is 100 Gauss. The ink is sprayed from the nozzle to the PTFE film, and the newly printed PTFE film is placed under the above-mentioned permanent ferrite. The ink droplets sprayed on the surface of the PTFE film are applied to it before curing Attracted by the magnetic field strength of 100 gauss, the ink...

Embodiment 2

[0042] At room temperature, Fe with a particle size of 50 nm 3 o 4 The particles were dispersed in polyethylene glycol aqueous solution (50wt%) with a viscosity of 500mPa·s, Fe 3 o 4 The content of the particles in the polyethylene glycol aqueous solution is 10 wt%. Add crosslinking agent N, N-methylenebisacrylamide (content in polyethylene glycol aqueous solution is 10wt%) and photoinitiator 2-hydroxyl-2-methyl-1-phenyl-1-propanone (in The content in polyethylene glycol aqueous solution is 5wt%). After mechanical dispersion, ultrasonication is performed for about 1 hour to obtain magnetic field responsive ink. The magnetic field-responsive ink was packed in the ink cartridge of the industrial dispensing system, equipped with a Picodot nozzle with an aperture of 150 μm. A sintered lump RuFeB permanent magnet is arranged vertically above the polyethylene film substrate, and the magnetic field strength is 150 gauss. The ink is sprayed from the nozzle to the polyethylene fil...

Embodiment 3

[0044] At room temperature, Fe with a particle size of 100 nm 2 o 3 The particles are dispersed in polyethylene glycol-diacrylic acid water dispersion system (20wt%) with a viscosity of 300mPa·s, Fe 2 o 3 The content of the particles in the polyethylene glycol-diacrylic acid water dispersion system is 15wt%. Add crosslinking agent N, N-methylenebisacrylamide (content in polyethylene glycol-diacrylic acid water dispersion system is 5wt%) and photoinitiator 1-hydroxycyclohexyl phenyl ketone (in polyethylene glycol The content in the alcohol-diacrylic acid water dispersion system is 1wt%), after mechanical dispersion, ultrasonication is performed for about 1 hour, and the ink with magnetic field responsiveness is obtained. The magnetic field-responsive ink was packed in the ink cartridge of an industrial dispensing system equipped with a Picodot nozzle with an aperture of 150 μm. A sintered bulk RuFeB permanent magnet is arranged vertically above the PDMS film substrate, and ...

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Abstract

The invention belongs to the technical field of inkjet printing and relates to a method for improving the printing resolution by inducing de-infiltration of ink droplets based on external stimulus. The method comprises the following steps: firstly dispersing inorganic particles or a polymer with external stimulus response in an appropriate substrate to get ink with the external stimulus responsiveness, then spraying the ink with the external stimulus responsiveness through an inkjet printing device, enabling the ink droplets to generate shape change and volume contraction or only generate thevolume contraction due to induction of the external stimulus before curing so as to generate de-infiltration on the substrate, further reducing the deposition area of the ink droplets on the substrate, appropriately curing the ink droplets, and finally improving the printing resolution of inkjet printed contents. The method for improving the printing resolution of the inkjet printed contents is simple to operate, has the characteristics of low cost, no special requirements on equipment, greatly improved resolution and the like.

Description

technical field [0001] The invention belongs to the technical field of inkjet printing, and relates to using ink with special external stimulus responsiveness to greatly improve the printing resolution of inkjet printing content, and in particular to a method for improving printing resolution based on external stimulus inducing ink droplet dewetting. Background technique [0002] In recent years, the application of inkjet printing-based graphics printing technology in high-resolution manufacturing has attracted much attention. Inkjet printing is one of the most promising methods for selectively depositing functional materials, which can realize large-area direct writing of complex and precise patterns, and is widely used in micro-semiconductors, Fine and accurate preparation of electronic devices and biological systems. Printing resolution in these applications is defined as the smallest stable dot, narrowest continuous line, or smallest gap, and is typically related to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01C09D11/10C09D11/03
Inventor 王利彬王京霞李英峰宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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