Multilayered Printed Matter with Segmented Concealment Layers
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Solution Overview
Problem
Conventional multilayered printed matter allows patterns on the back surface to be visible from the front surface even without light from the back-surface side, due to inadequate light blocking and concealment mechanisms.
Innovation Solution
A multilayered printed matter configuration with a first and second concealment print layer, where the second concealment print layer provides a higher light blocking effect than the first, interposed between the pattern print layers to conceal the second pattern print layer from the first pattern print layer side, using a combination of white and black ink layers to achieve effective concealment and visibility control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single concealment print layer is used, then the structure is simple, but the light blocking effect is insufficient and the back surface pattern remains visible
Solution Approach 1:
The concealment function is divided into two separate print layers: a first concealment print layer and a second concealment print layer. Each layer contributes differently to light blocking, with the second layer providing superior concealment performance. This segmentation allows the system to achieve effective light blocking without requiring excessive thickness in a single layer.
Solution Approach 2:
The patent employs two different types of concealment print layers with distinct optical properties. The first concealment print layer and second concealment print layer are composed of different materials or have different optical characteristics, creating a composite structure that optimizes both light blocking effectiveness and overall system performance.
2Object-affected harmful factors
If the concealment print layer is made thicker, then the light blocking effect is improved, but the overall thickness and material consumption increase
Solution Approach 1:
Instead of using one thick concealment layer, the patent segments the concealment function into two thinner layers. The second concealment print layer, positioned closer to the back surface, provides the primary light blocking effect, while the first concealment print layer supplements this function. This segmentation reduces total ink consumption while maintaining effective concealment.
Solution Approach 2:
The patent applies different concealment characteristics to different layers based on their specific functions. The second concealment print layer, which needs to block light from reaching the back surface pattern, uses materials or structures optimized for maximum light blocking. The first concealment print layer has different local properties suited for its position and function, optimizing overall material efficiency.
3Object-affected harmful factors
If the concealment print layer is made thicker, then the light blocking effect is improved, but the layer thickness increases
Solution Approach 1:
The concealment function is divided into two separate print layers, allowing each layer to be thinner than a single thick layer would need to be. The second concealment print layer, positioned strategically, provides the primary concealment function with minimal thickness, while the first concealment print layer supplements this function, achieving effective concealment with reduced overall thickness.
Solution Approach 2:
Instead of increasing thickness in one dimension to improve concealment, the patent uses a multi-layer approach that distributes the concealment function across different dimensional positions. The layers are arranged in a specific sequence (first concealment layer, then second concealment layer closer to the back surface), utilizing spatial arrangement to optimize concealment performance without increasing overall thickness.
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 configuration effectively conceals the second pattern print layer from the first pattern print layer side under normal lighting conditions, allowing it to be visible only when light is emitted from the back-surface side, reducing scattering and enhancing visibility while minimizing ink consumption and layer thickness.
Implementation Method 1
the first concealment print layer reflecting incident light from the side of the first pattern print layer to allow the first pattern print layer to be visible from the side of the first pattern print layer
Implementation Method 2
the second concealment print layer interposed between the first concealment print layer and the second pattern print layer so as to conceal the second pattern print layer to be invisible from the side of the first pattern print layer
Data Source
AI summary
A multilayered printed matter includes a group of print layers formed on a medium. The group of layers include a front layer and a back layer on which patterns are printed, a white layer, and a black layer. The white layer is interposed between the front layer and the back layer to conceal the back layer to be invisible from the side of the front layer. The white layer reflects incident light from the side of the front layer to allow the front layer to be visible from the side of the front layer. The black layer is interposed between the white layer and the back layer to conceal the back layer to be invisible from the side of the front layer. In comparison between the black layer and the white layer that are equal in thickness, the black layer exerts a higher light blocking effect than the white layer.


