Nanometer Inkjet Printing Ink for Plate Making Accuracy
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Solution Overview
Problem
In direct inkjet printing to plate based on nanometer materials, ink droplets diffuse on the substrate surface during printing, leading to degraded plate making accuracy and quality.
Innovation Solution
An ink formulation comprising 5-30 wt% film-forming resin, 0.01-5 wt% nanometer or micrometer dye, 30-60 wt% organic solvent, and 0.01-5 wt% humectant, with multi-stage filtering to produce a stable ink that inhibits droplet diffusion, improving printing accuracy and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If light solvents or water-based plate making ink are used for direct inkjet printing, then the printing process can be performed, but the ink droplets diffuse on the substrate surface during printing, resulting in degraded plate making accuracy
Solution Approach 1:
The patent changes the physical and chemical parameters of the ink formulation by incorporating specific ratios of film-forming resin (5-30 wt%), organic solvent (30-60 wt%), and humectant (0.01-5 wt%). This parameter optimization increases ink viscosity and reduces surface tension, preventing droplet diffusion while maintaining printability and achieving high plate making accuracy.
Solution Approach 2:
The patent creates a composite ink system combining multiple components: film-forming resin (phenolic, epoxy, polyurethane, olefinic, or cyanate ester resin), nanometer or micrometer dye (0.01-5 wt%), organic solvent, and humectant. This composite formulation synergistically prevents droplet diffusion while ensuring proper inkjet printing performance.
2Manufacturing precision
If ink formulation is adjusted to inhibit droplet diffusion, then plate making accuracy improves, but the ink formulation becomes more complex
Solution Approach 1:
The patent optimizes the concentration parameters of ink components within specific ranges: film-forming resin (5-30 wt%), organic solvent (30-60 wt%), and humectant (0.01-5 wt%). By defining precise parameter ranges, the formulation achieves droplet diffusion inhibition while maintaining reasonable manufacturing complexity.
Solution Approach 2:
The patent applies different functional properties to specific ink components: film-forming resin provides structural integrity and diffusion resistance, organic solvent ensures流动性 and inkjet dispensability, and humectant prevents evaporation. This localized functional assignment optimizes performance without requiring overly complex overall formulation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The ink achieves high resolution and durability printing plates with up to 100,000 copies, dot reproducibility of 98% or higher, and resolution exceeding 175 lpi, while avoiding post-treatment procedures and chemical pollution.
Implementation Method 1
Direct inkjet printing to plate based on nanometer material utilizes an inkjet printer (plate making machine) to spray plate making ink on the surface of a substrate to form oleophylic image and text areas
Implementation Method 2
the part with images and text is formed by a nanometer composite transfer printing material and is oleophylic, while the part without images and text is hydrophilic
Implementation Method 3
film-forming 5-30 wt %resin nanometer or 0.01-5 wt %micrometer dye
Data Source
AI summary
An ink used for direct inkjet printing to plate based on nanometer material and a method for preparing same. Of the baseline total amount of the ink, 5 to 30 wt % is of film-forming resin, 0.01 to 5 wt % is of nanometer or micrometer dye, 30 to 60 wt % is of organic solvent, 0.01 to 5 wt % is of humectant, and water provides the balance; these ingredients are stirred and mixed at room temperature, and after the film-forming resin is completely dissolved, impurities and/or insoluble substances in the present invention are removed by means of multi-level filtering, and the obtained filtrate is the present ink. The ink in the present invention is sprayed on a metal base material surface by an inkjet printer to form a printing pattern which, after curing, can be directly printed on the machine, thus reducing chemical pollution and post-processing processes, while a press run of the printing plate can be up to 100,000 copies at a resolution of up to 175 lpi.