Non-uniform Coating Manifolds for Complex Pattern Precision
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Solution Overview
Problem
Existing methods for applying non-uniform coatings to flexible substrates lack efficiency in creating complex patterns, as they often rely on static or simple linear movements of dispensing outlets, limiting the variety and precision of coating patterns that can be achieved.
Innovation Solution
A method involving multiple distribution manifolds with dispensing outlets that move in coordinated directions relative to the substrate, allowing for the simultaneous translation of dispensing outlets in multiple non-parallel directions to create complex patterns such as ellipses, arcs, and Lissajous figures, using needle tubes that can be made from materials like metal, thermoplastic polymer, or fused silica.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If static or simple linear movements of dispensing outlets are used, then the device complexity is reduced, but the variety and precision of coating patterns is limited
Solution Approach 1:
The patent applies dynamics by transitioning from static dispensing outlets to dynamically movable outlets that can change position in real-time. The dispensing outlets are moved along the substrate surface in complex two-dimensional trajectories, enabling precise control over coating pattern geometry and allowing the creation of varied patterns through controlled motion rather than complex mechanical structures
Solution Approach 2:
The patent introduces another dimension by moving dispensing outlets not just in the conventional linear direction but also in the cross-machine direction. This two-dimensional motion capability enables the creation of complex patterns such as curves, circles, and custom geometries that cannot be achieved with simple linear movement alone
2Adaptability or versatility
If multiple distribution manifolds with coordinated movement are used, then the variety and complexity of coating patterns is enhanced, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing distribution manifolds that can serve multiple functions: they distribute coating material to multiple dispensing outlets simultaneously while also providing the mechanical structure for coordinated movement. The same manifold system enables different coating patterns (stripes, curves, circles, custom geometries) through varied motion trajectories, making the system adaptable to diverse coating requirements without requiring separate specialized equipment for each pattern type
3Productivity
If coordinated translation of dispensing outlets in multiple directions is implemented, then the precision and efficiency of complex pattern application is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies merging by combining the distribution manifold structure with the movement mechanism into an integrated system. Multiple dispensing outlets are grouped together on common manifolds that move in coordinated fashion, allowing simultaneous deposition of multiple coating lines or patterns in a single pass. This combines what would otherwise require separate stationary manifolds into one mobile unit, improving productivity while managing complexity through integration
Data Source
AI summary
A process for applying a coating material onto a substrate as a non-uniform patterned layer of coating material, the method including providing a first distribution manifold having a cavity and a first multiplicity of dispensing outlets in fluid communication with the cavity, providing a second distribution manifold having a cavity and a second multiplicity of dispensing outlets in fluid communication with the cavity, creating relative motion between a substrate and the dispensing outlets in a first direction, dispensing a first coating material from the first dispensing outlets while maintaining the relative motion and simultaneously translating the plurality of dispensing outlets in a second direction non-parallel to the first direction, and dispensing a second coating material from the second dispensing outlets while maintaining the relative motion and simultaneously translating the plurality of dispensing outlets in a second direction non-parallel to the first direction. Useful non-uniformly patterned coated articles can be prepared using the process.