Reflective knit article
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Solution Overview
Problem
Existing reflective yarns used in knit fabrics are fragile, prone to breakage, and often only functional when laid flat, making it challenging to integrate them seamlessly into high-support performance knit articles that can effectively reflect light, especially in form-fitting athletic apparel.
Innovation Solution
A knit article is created using a flat knitting machine with a support matrix of base yarns and reflective yarns, where elongate loops of the reflective yarns are outwardly exposed on the outer surface and interconnected with base yarn loops, ensuring the yarns are securely embedded and functional as a reflector, even when stretched.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional reflective yarns are used in knit fabrics, then light reflection function is achieved, but the yarns are prone to breakage and lack durability
Solution Approach 1:
The patent uses composite reflective yarns that combine fragile reflective materials with flexible carrier yarns. The reflective material (such as glass beads or reflective films) is embedded in or attached to flexible carrier yarns, creating a composite structure that maintains both the light-reflecting properties and the flexibility needed for knitting without breakage.
Solution Approach 2:
The patent employs flexible carrier yarns that can bend and stretch within the knit fabric structure. These carrier yarns act as flexible shells that protect the embedded reflective materials while allowing the yarn to be worked into the knit fabric without breaking, enabling the reflective function to be maintained in a flexible, form-fitting garment.
2Illumination intensity
If reflective yarns are laid flat to function properly, then light reflection is effective, but the knit article loses form-fitting capability and support performance
Solution Approach 1:
The patent creates a dynamic knit fabric structure where the reflective yarns are integrated into the knit construction itself rather than being laid flat. The yarns are worked into the fabric in a manner that allows them to maintain reflective functionality while the fabric dynamically adapts to body movement and maintains its form-fitting shape through the knit structure's inherent elasticity.
Solution Approach 2:
The patent merges the reflective yarns with the base yarns in the knit fabric structure. Both yarn types are knitted together in the same fabric, with reflective yarns incorporated into specific patterns or zones. This integration allows the garment to maintain its form-fitting properties while the reflective yarns remain functional within the three-dimensional knit structure.
3Illumination intensity
If accessories like vests and patches are used for reflection, then visibility is improved, but the apparel loses seamless construction and aesthetic appeal
Solution Approach 1:
The patent makes the knit fabric itself multi-functional by incorporating reflective yarns directly into the fabric construction. The fabric simultaneously provides structural support, form-fitting properties, and light reflection functionality, eliminating the need for separate reflective accessories. The reflective yarns are integrated throughout the fabric or in specific patterns, making the garment itself the reflective element.
Solution Approach 2:
The patent combines the reflective function with the base fabric construction by knitting reflective yarns together with base yarns in the same seamless process. This integration eliminates the need for separate reflective patches or accessories, maintaining the seamless construction and aesthetic appeal while providing the desired visibility function.
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 solution provides a high-support performance, seamless knit article that effectively reflects light, enhancing visibility in low-light conditions while maintaining durability and comfort, suitable for form-fitting athletic wear.
Implementation Method 1
a knit article provided with a reflective component for reflecting light as a safety feature
Data Source
AI summary
A knit fabric is created using on a flatbed knitting machine to create a whole garment having an inner surface and an outer surface. The knit fabric includes a support matrix comprised of base yarns with reflective yarns supported on the support matrix. The knit fabric comprises a jacquard knit structure formed from the base yarns and the reflective yarns, wherein elongate loops of the reflective yarns are outwardly exposed from the outer surface of the knit fabric. The inner surface of the knit fabric includes outwardly exposed floats of the reflective yarns.