Retroreflective Article Mesh Structure for Thin, Soft, Durable Visibility
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Solution Overview
Problem
Existing retroreflective articles are often bulky and lack the combination of thinness, soft hand feel, and high drapability while maintaining effective visibility and abrasion resistance.
Innovation Solution
A retroreflective article design featuring a mesh layer with interconnected portions defining enclosed openings, a bond layer with embedded optical elements, and a reflective layer, allowing for a thin structure with good hand feel and enhanced visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional retroreflective articles are made thicker to improve visibility and abrasion resistance, then visibility and durability are improved, but the article becomes bulky and loses soft hand feel
Solution Approach 1:
The retroreflective article is divided into multiple functional layers: a mesh layer for structure and abrasion resistance, a bond layer for adhesion and optical element embedding, and a reflective layer for visibility. This segmentation allows each layer to be optimized for its specific function while maintaining overall thinness and softness.
Solution Approach 2:
The patent combines different materials with complementary properties: the mesh layer provides mechanical strength and breathability, the bond layer provides adhesion and flexibility, and the reflective layer provides optical performance. This composite structure achieves both thinness and durability simultaneously.
2Ease of operation
If the retroreflective article structure is simplified to reduce bulk, then thinness and soft hand feel are improved, but abrasion resistance and visibility may be compromised
Solution Approach 1:
By dividing the article into distinct functional layers, each layer can be designed to perform its specific function efficiently. The mesh layer handles abrasion resistance, the bond layer ensures proper assembly and optical element securement, and the reflective layer maximizes visibility, allowing the overall structure to remain thin without compromising any single function.
Solution Approach 2:
The patent employs thin film structures for all layers, particularly the bond layer and reflective layer, which can be made extremely thin while maintaining their functional properties. This allows the overall article thickness to be minimized while preserving abrasion resistance and visibility through the optimized thin film construction.
3Reliability
If optical elements are densely packed to enhance visibility, then visibility is improved, but the article thickness and bulk increase
Solution Approach 1:
The optical elements are embedded within the bond layer, nesting them within the existing structure rather than adding them on top. This nested arrangement allows multiple optical elements to be packed into the available space efficiently, enhancing visibility without significantly increasing the overall article thickness.
Solution Approach 2:
Instead of increasing thickness to pack more optical elements, the patent utilizes the horizontal plane and the bond layer's available space to densely arrange optical elements. This dimensional approach allows high optical element density while maintaining thin profile by optimizing the distribution across the surface area rather than stacking vertically.
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 design achieves a very thin retroreflective article with improved visibility, soft hand feel, and excellent abrasion resistance, suitable for integration into garments for enhanced user safety.
Implementation Method 1
a plurality of sets of optical elements corresponding to the plurality of bond portions of the bond layer. Each of the sets of optical elements includes a plurality of optical elements partially embedded within a corresponding bond portion
Implementation Method 2
Each of the plurality of bond portions is at least partially disposed within a corresponding enclosed opening from the plurality of enclosed openings and fixedly bonded to one or more adjacent interconnected portions from the plurality of interconnected portions of the mesh layer
Data Source
AI summary
A retroreflective article includes a mesh layer including a plurality of interconnected portions defining a plurality of enclosed openings therebetween, a bond layer, and a plurality of sets of optical elements. The bond layer includes a plurality of bond portions at least partially spaced apart from each other by the mesh layer. Each bond portion is at least partially disposed within a corresponding enclosed opening and fixedly bonded to one or more adjacent interconnected portions of the mesh layer. The plurality of sets of optical elements corresponds to the plurality of bond portions of the bond layer. Each of the sets of optical elements includes a plurality of optical elements partially embedded within a corresponding bond portion from the plurality of bond portions of the bond layer. The sets of optical elements are spaced apart from each other by the one or more interconnected portions of the mesh layer.