Functionalized Soybean Coating for Recyclable UV Ink Adhesion
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Solution Overview
Problem
Existing UV-curable inks face issues with adhesion to substrates, making substrates non-recyclable and increasing manufacturing costs, while also being non-biodegradable and environmentally unfriendly.
Innovation Solution
A functionalized soybean compound with a specific chemical structure, combined with a photo-initiator and acrylic monomer, is used to create a coating composition that enhances adhesion, is biodegradable, and can be removed with an alkaline solution, allowing for recyclable substrates and reduced environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If UV-curable ink with high adhesion to carrier substrate is used, then adhesion is improved, but the ink becomes very difficult to remove from the carrier substrate
Solution Approach 1:
The patent changes the chemical parameters of the UV-curable ink by incorporating biodegradable polymeric materials with specific functional groups that provide adhesion while maintaining removability through chemical modification. The ink formulation uses controlled molecular weight and functional group density to achieve the desired balance between adhesion strength and ease of removal.
Solution Approach 2:
The patent employs composite materials consisting of biodegradable polymeric materials combined with UV-curable components. This composite approach allows the ink to exhibit both strong adhesion properties and biodegradability, enabling easy removal and substrate recyclability while maintaining environmental friendliness.
2Strength
If solvent-based inks are used, then adhesion and ease of removal are improved, but environmental pollution increases due to solvent volatilization
Solution Approach 1:
The patent changes the fundamental composition parameter by replacing solvent-based systems with water-based or solvent-free UV-curable systems containing biodegradable polymeric materials. This parameter change eliminates harmful solvent volatilization while maintaining adhesion performance through the chemical properties of the biodegradable polymers.
Solution Approach 2:
The patent substitutes the drying mechanism of solvent-based inks (evaporation requiring high power consumption) with a UV-curing mechanism that uses photopolymerization. This substitution eliminates the need for thermal drying, reducing energy consumption and avoiding solvent emissions while achieving rapid curing and adhesion.
3Object-affected harmful factors
If existing UV-curable inks are used, then environmental friendliness is improved by reducing solvent use, but adhesion to carrier substrate deteriorates due to high curing speed
Solution Approach 1:
The patent adjusts the curing parameter by incorporating biodegradable polymeric materials that moderate the curing speed while maintaining UV-curability. These materials allow for controlled photopolymerization that ensures adequate adhesion development before final curing, resolving the contradiction between environmental friendliness and adhesion performance.
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 coating composition achieves high adhesion and hardness, is insoluble in water, and can be removed with an alkaline solution, making substrates reusable and reducing environmental pollution, while being environmentally friendly.
Implementation Method 1
a coating composition can include a photo-initiator, and the aforementioned functionalized soybean oil compound having Formula (I). Further, according to embodiments of the disclosure, the coating composition can include a photo-initiator; an acrylic monomer
Data Source
AI summary
The disclosure provides a functionalized soybean compound, and a coating composition employing the same. The functionalized soybean compound has the chemical structure represented below:wherein, each n is independent and an integer from 1 to 10; each m is independent and an integer from 1 to 10; each x is independent and can be 1 or 2; and each R1 is independent and can be hydroxyl group,wherein i can be 1, or 2, j can be an integer from 4 to 60, R2 can be hydrogen, C1-3 alkyl group, or acrylic group, R3 and R4 are hydrogen, or R3 and R4 are linked together with the carbon atoms to which R3 and R4 are attached to form a saturated and unsaturated six-membered ring, and R6, R7, and R8 are independent and can be hydrogen, or C1-6 alkyl group.