Curable Composition Moisture Control for Substrate Warp Reduction
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Solution Overview
Problem
Printing on water-absorptive substrates like gypsum boards is challenging due to warping caused by moisture, which affects the substrate's stability and image formation in typical inkjet printing methods.
Innovation Solution
A method of manufacturing printed matter involves applying a curable composition with a moisture content of 0.4 percent by mass or less to the substrate, which includes a hydrophilic monomer and is cured using active energy rays, preventing substrate deformation and ensuring minimal warp.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a typical inkjet printing method is used on a water-absorptive substrate, then the substrate absorbs moisture from the ink, but this causes the substrate to warp and deform
Solution Approach 1:
The patent applies parameter changes by controlling the moisture content of the curable composition to 0.4% by mass or less. This parameter control prevents excessive moisture absorption by the water-absorptive substrate, thereby avoiding substrate warping while enabling successful printing.
2Stability of the object's composition
If the moisture content in the curable composition is reduced to prevent substrate warping, then substrate stability is improved, but the curable composition becomes more difficult to formulate and maintain
Solution Approach 1:
The patent specifies precise parameter ranges for the curable composition, including moisture content of 0.4% by mass or less and specific proportions of hydrophilic monomers (5-50 mass%). These parameter specifications provide a clear formulation guideline that balances substrate stability requirements with composition feasibility.
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 method effectively reduces substrate warp to 1 mm or less, ensuring stable image formation and substrate integrity by controlling moisture content in the curable composition.
Implementation Method 1
cured using active energy rays
Data Source
AI summary
A method of manufacturing printed matter includes applying a curable composition to a water-absorptive substrate, wherein the curable composition has a moisture content ratio of 0.4 percent by mass or less.