Contiguously Woven Variable Stretch Zones for Garment Shaping
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Solution Overview
Problem
Existing jeans sizing systems fail to adequately address the diverse range of modern consumers' body shapes, resulting in form-fitting jeans that either appear too tight in some areas and too loose in others, lacking support for areas like the stomach, hips, and thighs, and often emphasizing flawed body curves over time due to stretching and sagging.
Innovation Solution
A garment made from denim or other fabrics with engineered weave-integrated hold and extension zones, featuring distinct stretch performance attributes, where hold yarns provide compression and extension yarns offer greater elongation, creating zones that shape and support the body without visible distinctions, allowing for a smooth transition between zones to prevent puckering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional uniform stretch denim is used, then the jeans are comfortable to wear, but they cannot provide targeted support and shaping for different body areas
Solution Approach 1:
The denim fabric is segmented into multiple zones with different stretch characteristics. Hold zones with higher stretch resistance are placed in areas requiring support (thighs, stomach, hips), while extension zones with greater stretch are placed in areas requiring flexibility (buttocks, knees). This segmentation allows the fabric to provide targeted support and shaping for different body areas while maintaining overall comfort and flexibility.
Solution Approach 2:
Different regions of the denim fabric are given different local qualities through varying yarn compositions and weave structures. Hold zones use yarns with higher elastane content and tighter weave for compression and support, while extension zones use yarns with lower elastane content and looser weave for flexibility. This local differentiation enables the jeans to adapt to the specific contours and movement requirements of different body parts.
2Adaptability or versatility
If multiple separate fabric pieces are sewn together to create different stretch zones, then targeted support is achieved, but visible seams and puckering occur
Solution Approach 1:
Multiple zones with different stretch characteristics are merged into a single contiguously woven fabric structure. The transition between hold zones and extension zones is achieved through gradual blending of yarn types within the weave, eliminating the need for separate fabric pieces and sewn seams. This merging approach maintains fabric smoothness and visual uniformity while providing differentiated stretch performance in different areas.
Solution Approach 2:
Blend zones are introduced as intermediary regions between hold zones and extension zones. These blend zones contain a gradual transition of yarn compositions, acting as a mediator that smoothly connects areas of high stretch resistance to areas of high stretch compliance. The blend zones prevent abrupt transitions that would cause visible lines or puckering, ensuring a smooth, uniform fabric appearance.
3Strength
If hold yarns with high stretch resistance are used throughout, then support and shaping are improved, but the jeans become too rigid and lose comfort
Solution Approach 1:
The fabric is designed with dynamic stretch characteristics that vary by zone. Hold zones provide high stretch resistance for support and compression, while extension zones provide high stretch compliance for flexibility and comfort. The fabric dynamically adapts to different body movements and pressures, offering support where needed and flexibility where required, thereby resolving the contradiction between strength and ease of operation.
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 form-fitting, supportive, and flattering fit that maintains shape over time, enhancing the natural silhouette by combining hold and extension zones to sculpt and support key areas like the buttocks, while maintaining an authentic jeans look with enhanced stretch characteristics.
Implementation Method 1
hold yarns are stretch yarns with a higher relative lateral tension force... hold zones with less elongation and greater compression
Implementation Method 2
extension yarns are stretch yarns with a lower relative lateral tension force... extension zones with more elongation and less compression
Data Source
AI summary
A garment is made from a material woven to have multiple stretch characteristics. The garment can be jeans and the material can be a denim fabric. Enhanced stretch denim shaping performance is achieved through engineered placement of weave-integrated hold zones and extension zones. The hold yarns and extension yarns will have distinct stretch performance attributes, but typically have the same or similar gauge, shrinkage, tensile strength, and durability.