High-Gloss Decorative Sheet Silicone Resin Optimization
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Solution Overview
Problem
Conventional decorative sheets with ionizing radiation-curable resin coatings face challenges in achieving high gloss, oil base ink erasability, and reduced slippiness while maintaining surface smoothness and stain resistance, often compromising on one or more of these properties due to compatibility issues with silicone additives.
Innovation Solution
Incorporating mono- or difunctional silicone methacrylate and multifunctional silicone acrylate into the ionizing radiation-curable resin, with specific functional group equivalents and concentrations, to form a surface protective layer that enhances stain resistance, oil base ink erasability, and surface smoothness while reducing slippiness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silicone is added to the ionizing radiation-curable resin to improve stain resistance and mold releasing property, then stain resistance and cellophane adhesive tape resistance are improved, but slippiness increases causing safety risks during storage and transportation
Solution Approach 1:
The patent changes the chemical parameters of the silicone compound by specifying functional group equivalent (3000-6000) and content ratio (1-20 mass parts per 100 mass parts of ionizing radiation-curable resin). This parameter optimization allows achieving stain resistance while controlling slippiness through precise chemical composition control.
Solution Approach 2:
The patent creates a composite material system combining ionizing radiation-curable resin with specifically controlled silicone compounds. This composite approach enables simultaneous achievement of multiple properties (stain resistance, mold releasing property, and controlled slippiness) through the synergistic interaction of different materials with optimized compositions.
2Productivity
If conventional electron beam-curable coating material is used to quickly produce decorative paper, then productivity is improved, but surface smoothness and specular property are insufficient
Solution Approach 1:
The patent modifies the chemical composition parameters of the coating material by incorporating silicone compounds with specific functional group equivalents and content ratios. This parameter change enables the fast-curing electron beam-curable system to achieve both high productivity and superior surface smoothness simultaneously.
3Reliability
If silicone is added to improve surface characteristics, then stain resistance and mold releasing property are improved, but compatibility with ionizing radiation-curable resin deteriorates causing surface deterioration and increased opacity
Solution Approach 1:
The patent optimizes the compatibility parameter by controlling the functional group equivalent (3000-6000) and content ratio (1-20 mass parts per 100 mass parts) of the silicone compound. This parameter control ensures proper chemical compatibility with the ionizing radiation-curable resin, preventing surface deterioration and excessive opacity while maintaining mold releasing property.
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 solution provides a decorative sheet with high gloss, excellent oil base ink erasability, and inhibited slippiness, maintaining high surface smoothness and transparency, effectively addressing the limitations of previous technologies.
Implementation Method 1
an ionizing radiation-curable resin composition is preferably used. The ionizing radiation-curable resin composition is a composition cured by an ionizing radiation such as a UV ray, an electron beam and the like
Data Source
AI summary
This invention provides a decorative sheet having a high glossy impression, comprising a surface protective layer formed of an ionizing radiation curing resin, which is excellent in surface specularity and marker ink erasing capability and has suppressed slipperiness as a decorative sheet, and a decorative plate comprising the sheet and a substrate jointed to each other. In the decorative sheet, a silicone having a high lifting effect (the effect of lifting on the surface) and a silicone having high compatibility with the ionizing radiation curing resin are incorporated, either separately from each other or simultaneously, into an ionizing radiation curing resin for forming the surface protective layer. According to this constitution, properties, which are generally likely to be offset by each other, that is, excellent contamination resistance, marker ink erasing capability, and cellophane tape resistance, high leveling properties, surface smoothness, and transparency, and suppressed slipperiness, can be maintained on a high level.