UV-Curable Water-Based Ink Composition for Durable Coating Films
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Solution Overview
Problem
Existing ultraviolet-curable water-based inks exhibit poor coating film performance and weak coating film strength, making them unsuitable for large surface area or outdoor use.
Innovation Solution
Incorporating a radically polymerizable compound in the form of particles and using a specific polymerization initiator, such as a compound represented by Formula (1), in an ultraviolet-curable composition to enhance water resistance and solvent resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water-based ultraviolet-curable inks are used, then environmental and safety properties are improved, but coating film performance and strength deteriorate
Solution Approach 1:
The patent uses composite materials by combining water-based ultraviolet-curable ink with specific polymerization initiators (compounds of formula 1) and radically polymerizable compounds. This composite approach creates a coating film that maintains the environmental benefits of water-based inks while achieving the durability and strength typically associated with solvent-based systems, directly resolving the contradiction between environmental properties and coating film strength.
2Object-affected harmful factors
If water-based ultraviolet-curable inks are used, then environmental and safety properties are improved, but water resistance and solvent resistance deteriorate
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the ultraviolet-curable ink. Specifically, it incorporates compounds of formula (1) as polymerization initiators and selects specific radically polymerizable compounds, which fundamentally changes the curing mechanism and resulting film properties. This enables the coating film to achieve excellent water and solvent resistance while maintaining the environmental advantages of water-based formulation.
3Ease of operation
If conventional ultraviolet-curable water-based inks are used, then ease of operation is improved, but coating film performance for outdoor use deteriorates
Solution Approach 1:
The patent effectively copies or adapts the successful formulation approach of solvent-based ultraviolet-curable inks into a water-based system. By using compounds of formula (1) as polymerization initiators - which were traditionally associated with solvent-based systems - the patent replicates the high performance and outdoor durability characteristics while maintaining the ease of operation and environmental benefits of water-based inks.
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 composition and ink provide a coating film with excellent water resistance and solvent resistance, suitable for large surface area and outdoor use.
Implementation Method 1
a component that is cured by ultraviolet light is blended into a water-based product to form an ultraviolet-curable composition, and the ultraviolet-curable composition is applied and then cured by irradiation with ultraviolet light
Data Source
AI summary
The present disclosure relates to an ultraviolet-curable composition containing at least a radically polymerizable compound, a polymerization initiator, and a solvent, with the radically polymerizable compound being present as particles, and the polymerization initiator including a compound represented by Formula (1).