Flexographic Printing Line Patterns for Depth and Clarity
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Solution Overview
Problem
Flexographic print processes combined with UV-curing inks often result in images that lack depth and movement, and are prone to undesirable blurring or bridging, failing to provide unique visual attributes for packaging.
Innovation Solution
A method involving the creation of specific repeating line patterns with varying weights, distances, and angles on a substrate, using an anilox coater with controlled cell volume and shape, to create an illusion of movement and depth in printed images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flexographic print processes with UV-curing inks are used, then printing efficiency and substrate versatility are improved, but image depth and visual uniqueness deteriorate while blurring and bridging increase
Solution Approach 1:
The patent divides the printing process into multiple sequential passes, with each pass depositing a specific layer of ink at controlled intervals. This segmentation allows precise control over ink deposition, preventing blurring and bridging while building up image depth through layered construction.
Solution Approach 2:
The patent applies preliminary action by using a first ink layer to create a base pattern that is partially cured, then subsequent ink layers are deposited on top. This preliminary layering and partial curing approach prevents premature blending of ink layers, maintaining sharp edges and reducing blurring while enabling complex visual effects.
2Device complexity
If conventional printing methods are used, then process simplicity is maintained, but visual appeal and perceived depth of printed images are reduced
Solution Approach 1:
The patent applies local quality by varying ink properties, layering sequences, and curing conditions in different regions of the printed image. Specific areas receive different numbers of ink layers or different ink formulations, creating localized visual depth and movement effects that enhance overall visual appeal while maintaining a systematic printing process.
Solution Approach 2:
The patent introduces dimensional complexity by printing at multiple angles and creating overlapping line patterns that interact with light differently. This multi-dimensional approach to pattern creation gives flat printed surfaces a perception of depth and movement, transforming two-dimensional printing into a three-dimensional visual experience.
3Shape
If multiple ink layers are deposited to create depth, then visual depth is improved, but blurring and bridging between lines worsen
Solution Approach 1:
The patent employs periodic action through intermediate curing steps between ink layer depositions. Each ink layer is partially or fully cured before the next layer is applied, creating periodic pauses that prevent ink diffusion and bridging. This rhythmic deposition-curing sequence maintains sharp line definitions while building multi-layer depth.
Solution Approach 2:
The patent maintains continuity of useful action by optimizing the timing and conditions of ink deposition and curing operations. The process continuously builds image depth through coordinated ink layer application and curing, eliminating idle time while preventing harmful ink blending through precise control of each step's duration and conditions.
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 method effectively produces images with the appearance of movement and depth, minimizing blurring and bridging, while maintaining visual appeal and durability on packaging materials.
Implementation Method 1
The method may include coating the substrate using an anilox coater having a cell volume of less than about 19.5 cm3/m2
Implementation Method 2
If a UV-curing ink is used, the ink is then cured by UV rays
Data Source
AI summary
A method for creating a greater pattern (12) comprising creating a first repeating line pattern (14a) comprising printing a first line (16a) onto a substrate, the first line having a weight of from about 0.2 point to about 0.6 point, printing a second line (16b) onto the substrate at least about 0.3 point and less than about 0.8 point from the first line (16a), the second line (16b) having a weight of from about 0.2 point to about 0.6 point, and printing a third line (16c) onto the substrate at least about 0.3 point and less than about 0.8 point from the second line (16b), the third line (16c) having a weight of from about 0.2 point to about 0.6 point, wherein the first, second and third lines (16a, 16b, 16c) are all printed at a first angle.