Abrasion-Resistant Imprint Ink Composition for Cleanable Pattern Layers
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Solution Overview
Problem
Conventional nano imprint lithography technologies suffer from poor surface film layer properties, including low abrasion resistance, difficulty in cleaning, and poor anti-fouling capabilities, leading to contamination and surface scratching.
Innovation Solution
An imprint ink composition comprising 65-70% polymerizable prepolymer, 7-13% photosensitive monomer, 0.5-1.5% photoinitiator, 8-17% abrasion-resistant acrylic mixed reaction resin, and auxiliary agents, followed by semi-curing and full curing processes to form a semi-cured and fully cured imprint pattern layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional nano imprint lithography is used, then the process is simple and fast, but the surface film layer has poor abrasion resistance and easy contamination
Solution Approach 1:
The patent uses a composite imprint ink formulation containing polymerizable prepolymer, photosensitive monomer, photoinitiator, and abrasion-resistant acrylic mixed reaction resin. This composite material approach resolves the contradiction by integrating multiple functional components: the prepolymer provides base matrix, the photoinitiator enables curing, the photosensitive monomer allows pattern formation, and the acrylic resin specifically enhances abrasion resistance and anti-fouling properties, achieving superior reliability without excessive complexity
Solution Approach 2:
The patent optimizes specific parameter ranges in the imprint ink composition: polymerizable prepolymer at 65-70 wt%, photosensitive monomer at 7-13 wt%, photoinitiator at 0.5-1.5 wt%, and abrasion-resistant acrylic mixed reaction resin at 8-17 wt%. By precisely controlling these parameters, the formulation achieves optimal balance between curing performance, pattern fidelity, and abrasion resistance, resolving the contradiction between reliability and complexity
2Ease of operation
If conventional imprint ink is used, then the formulation is simple, but the surface film layer is difficult to clean and lacks anti-fouling capability
Solution Approach 1:
The patent adjusts the chemical composition parameters, specifically incorporating 8-17 wt% abrasion-resistant acrylic mixed reaction resin and controlling photoinitiator content at 0.5-1.5 wt%. These parameter changes modify the surface chemistry to create hydrophobic or low-surface-energy characteristics, enabling easy cleaning and anti-fouling properties while maintaining formulation manageability
Solution Approach 2:
The patent creates a surface film layer with self-cleaning characteristics that repels contaminants like fingerprints and oils. The anti-fouling property allows the surface to resist adhesion of substances, making it easy to clean without requiring complex cleaning procedures or special maintenance, effectively treating the surface as inherently easy-to-maintain
3Strength
If conventional imprint ink is used, then the process is straightforward, but the surface film layer scratches easily due to insufficient abrasion resistance
Solution Approach 1:
The patent formulates a composite imprint ink with specific proportions of polymerizable prepolymer (65-70 wt%), photosensitive monomer (7-13 wt%), photoinitiator (0.5-1.5 wt%), and abrasion-resistant acrylic mixed reaction resin (8-17 wt%). This composite structure ensures that the acrylic resin forms a hard, abrasion-resistant network within the cured film, providing scratch resistance while keeping the overall formulation practical
Solution Approach 2:
The patent optimizes the weight percentage parameters of each component to achieve optimal hardness and abrasion resistance. Specifically, the acrylic mixed reaction resin content is controlled at 8-17 wt% to provide sufficient hardness without excessive crosslinking that would compromise flexibility. The photoinitiator concentration (0.5-1.5 wt%) is optimized to ensure complete curing and maximum crosslink density, resulting in a scratch-resistant surface film
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 resulting imprint pattern layer exhibits enhanced abrasion resistance, withstanding over 100,000 abrasions under 500 g load, and improved anti-fouling properties with a contact angle greater than 115°, making it resistant to contamination and easy to clean.
Implementation Method 1
0.5 wt % to 1.5 wt % of photoinitiator, 7 wt % to 13 wt % of photosensitive monomer
Data Source
AI summary
An imprint ink is provided. The imprint ink includes 65 wt % to 70 wt % of polymerizable prepolymer, 7 wt % to 13 wt % of photosensitive monomer, 0.5 wt % to 1.5 wt % of photoinitiator, 8 wt % to 17 wt % of abrasion-resistant acrylic mixed reaction resin, and an auxiliary. An imprint method is further provided. First, a substrate is provided. Then, an imprint ink layer is formed on the substrate by using the imprint ink. Next, semi-curing processing is performed on the imprint ink layer, to form a semi-cured imprint ink layer. Then, the semi-cured imprint ink layer is shaped by using a mold, to form a semi-cured imprint ink contour layer. Finally, full curing processing is performed on the semi-cured imprint ink contour layer, to form an imprint pattern layer on the substrate.