Under-tufting Carpet Method for Back Stitch Wear Surface
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Solution Overview
Problem
Existing carpet technologies have limited design possibilities for the back stitch face as a wear surface, with little effort devoted to creating patterns or utilizing short pile heights, and no methods for laterally shifting patterns across the width of the carpet to create continuous designs underneath traditional carpet patterns.
Innovation Solution
The development of a carpet construction method that allows for the use of the back stitch face as a wear surface by incorporating design elements on the primary backing, such as yarns, ribbons, or cloth strips, which are tufted through the backing to create unique patterns and elevational differences, and the use of under-tufting techniques to integrate these elements into the carpet design, potentially using up to 100% nylon yarns and varying weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the back stitch face is used as a wear surface with traditional tufting methods, then the carpet structure is simple and easy to manufacture, but the design possibilities are limited and pattern creation is difficult
Solution Approach 1:
Design elements are applied to the primary backing before the tufting process begins. This preliminary placement allows patterns to be integrated into the carpet structure during manufacturing, expanding design possibilities without requiring complex post-processing or additional manufacturing steps
Solution Approach 2:
The patent combines design element application with the tufting process itself. The design elements are incorporated into the primary backing and then tufted together with the carpet yarns in a single integrated manufacturing operation, avoiding the need for separate pattern application steps
2Adaptability or versatility
If design elements are applied to the primary backing before tufting, then unique patterns and elevational differences are created, but the manufacturing process becomes more complex
Solution Approach 1:
The tufting machine itself performs the function of integrating design elements into the carpet structure. The needles that tuft the yarns also puncture and secure the design elements to the primary backing, allowing the same equipment to handle both carpet construction and pattern integration without requiring additional specialized machinery
3Shape
If extremely short loops are created on the back stitch face, then the carpet provides a unique wear surface, but the pile height becomes very low which may reduce cushioning
Solution Approach 1:
The patent creates different loop heights in different areas of the carpet. By varying the amount of yarn tufted through the primary backing, extremely short loops can be created in certain locations for a unique wear surface while maintaining longer loops in other areas to provide cushioning and comfort
4Adaptability or versatility
If laterally shifting patterns are implemented across the carpet width, then continuous designs are created, but the tufting process requires precise lateral movement control
Solution Approach 1:
The patent introduces lateral movement of the design element application or tufting process across the width of the carpet. This dynamic lateral shifting allows patterns to progress continuously across the carpet surface, creating seamless designs that wrap around the edges
Data Source
AI summary
Carpet designs can be provided having new features. Specifically, design elements can be provided intermediate or on the primary backing and the stitches with various embodiments in an “under tufted” manner.