Sublimatable Relief Coating for Defined Abrasion-Resistant Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing digital inkjet printing methods for producing reliefs on substrates face challenges in achieving adequate abrasion resistance and definition due to complex interactions between relief product droplets and coatings, particularly in creating negative surfaces.
Innovation Solution
A method involving the application of a sublimatable relief product on a substrate, which is then sublimated to create porous volumes in the coating, allowing for controlled relief formation with high definition and abrasion resistance, using digital inkjet printing and sublimation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digital inkjet printing is used to produce positive surfaces by adding relief product to coating, then flexibility and precision are improved, but abrasion resistance deteriorates
Solution Approach 1:
The relief product is applied in liquid form and then undergoes phase transition to solid state through sublimation (solid→gas→solid deposition), creating positive relief surfaces with high abrasion resistance while maintaining digital printing flexibility
Solution Approach 2:
The invention changes the physical state parameters of the relief product from liquid application to solid final form through controlled sublimation, transforming the material properties to achieve both flexibility in application and strength in the final relief structure
2Manufacturing precision
If digital inkjet printing is used to produce negative surfaces by impact or displacement of droplets, then flexibility and precision are improved, but definition and process control deteriorate due to complex physical and chemical mechanisms
Solution Approach 1:
The invention extracts and eliminates the complex interaction mechanisms between relief product droplets and coating by using sublimation, which allows the relief product to independently transform phase without complex chemical interactions, simplifying process control while maintaining precision
Solution Approach 2:
The invention replaces complex mechanical and chemical interaction mechanisms with a thermal field-based sublimation process, where temperature control governs the phase transition, simplifying the control system while achieving high definition relief patterns
3Strength
If sublimation is used to create relief by removing coating material, then abrasion resistance and definition are improved, but process complexity increases
Solution Approach 1:
The invention merges the relief product application and coating removal processes into a single sublimation step, where the sublimating relief product simultaneously creates positive relief and removes coating material, reducing process complexity while improving abrasion resistance
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
Enables the production of reliefs with high definition and improved abrasion resistance by controlling the sublimation process, facilitating the removal of affected coating material and residue, suitable for flexible and precise relief creation.
Implementation Method 1
the sublimation of the relief product. In general, any product capable of sublimation can be used as a relief product
Implementation Method 2
the coating and/or the relief product is solidified during the process, being supplied to the process in a liquid state. The solidification of the relief product and/or the coating according to the invention can be carried out, for example, by means of curing or drying
Data Source
Figure 1(A)~1(C)
Figure 2(D)~2(G)
Figure 3(D)~3(G)
AI summary
The present invention relates to a method and system for producing a relief on a substrate (1), the method comprising the application on the substrate (1) of a coating and a relief product that come into contact with each other and the sublimation of the relief product (3).