Heated Ink Spreading for Textured Press Plate Fabrication
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Solution Overview
Problem
The existing processes for creating textured press plates for decorative laminates are costly and time-consuming due to the need for precise printing and etching, which can take up to eight hours and require multiple iterations.
Innovation Solution
A method involving the use of radiation-curable ink, where the ink is dispensed onto a substrate, heated to spread, and then irradiated to be partially cured, significantly reducing the time and effort required to create a textured press plate, potentially cutting the process in half.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional printing and etching processes are used to create textured press plates, then manufacturing precision is maintained, but production time increases significantly (up to eight hours) and costs increase
Solution Approach 1:
The patent replaces traditional mechanical printing and etching systems with a digital imaging system that uses inkjet printers to deposit liquid crystal compositions directly onto the press plate. This substitution of mechanical processes with digital deposition methods significantly reduces production time while maintaining the precision needed for decorative laminate textures.
Solution Approach 2:
The invention changes the physical state and properties of the marking material by using liquid crystal compositions that can be precisely controlled in viscosity and flow characteristics. By adjusting parameters such as temperature and composition, the liquid crystal material can be made to spread to desired thicknesses and patterns, achieving precise textures faster than traditional methods.
2Stability of the object's composition
If highly-viscous ink is used for printing, then material properties are maintained, but additional print jobs or ink substitutions are required
Solution Approach 1:
The patent uses liquid crystal compositions whose viscosity and flow properties can be dynamically controlled through temperature adjustments. By heating the liquid crystal material to specific temperatures, it becomes sufficiently fluid for single-pass printing while maintaining its structural integrity and desired thickness characteristics after deposition, eliminating the need for multiple print jobs or ink substitutions.
Solution Approach 2:
The liquid crystal composition acts as an intermediary material that bridges the gap between highly-viscous ink and printable fluidity. These materials can be delivered through standard inkjet systems while maintaining controlled viscosity, serving as a mediator that allows single-pass printing without requiring ink substitution or additional print jobs.
3Manufacturing precision
If multiple print jobs are performed to achieve precise coverage, then manufacturing precision is improved, but production time and complexity increase
Solution Approach 1:
The invention modifies the rheological parameters of the marking material by using liquid crystal compositions with temperature-dependent viscosity. By controlling the temperature of the liquid crystal material during deposition, achieving uniform coverage and precise patterns in a single pass, thereby eliminating the need for multiple print jobs and reducing process complexity.
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
This approach allows for the creation of textured press plates in half the time, reducing costs and effort, while maintaining the precision needed for decorative laminates, and enabling the use of highly-viscous ink without additional print jobs or ink substitutions.
Implementation Method 1
heating, using a heater, the ink until the ink spreads over the press plate
Implementation Method 2
irradiating the ink such that the ink is at least partially cured and/or fixed onto the substrate
Data Source
AI summary
This invention relates to methods and apparatuses for creating a textured press plate by spreading ink over the press plate using a heater. Some embodiments provide a method that includes: (a) dispensing radiation-curable ink onto a press plate; (b) spreading the ink over the press plate by heating the ink; and (c) irradiating the ink so that the ink is at least partially cured and/or fixed, and/or such that the spreading of the ink is at least partially slowed and/or stopped. In some embodiments, the irradiating the ink occurs after the spreading the ink. In other embodiments, the ink acts to resist a chemical solution, and the method further includes etching a surface portion of the press plate by exposing the portion to a chemical solution, where the surface portion includes the ink, and where the etching the surface portion occurs after the irradiating the ink.