Heat-Sealable Cuff Material for Athletic Garments
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Solution Overview
Problem
Athletic and compression garments face issues with cuffs losing stretch and recovery properties over time due to repeated use and washing, and traditional sewing methods restrict flexibility and lead to thread failure.
Innovation Solution
A method using a heat-sealable material with stretch and recovery properties is applied to fabric panels near cuff edges, heat-sealed to create cuffs that stretch to fit body parts and recover for a snug fit, and ultrasonic cutting seals the edges without fraying, eliminating the need for traditional hemming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional sewing methods are used to create cuffs, then the garment structure is stable, but the cuff flexibility and stretch capability are restricted
Solution Approach 1:
The patent removes traditional thread-based sewing from the cuff construction process entirely. Instead of using threads to stitch the cuff, the invention uses heat-sealable material that is thermally bonded to the fabric panels, extracting the problematic thread element that causes failure under repeated stretching.
Solution Approach 2:
The patent replaces the mechanical thread-stitching system with a thermal bonding system. The heat-sealable material is attached to the fabric through heat sealing rather than mechanical stitching, eliminating the thread from the system and replacing it with a thermally bonded construction that maintains flexibility while improving reliability.
2Ease of operation
If fabric edges are left unfinished to maintain flexibility, then the garment stretches easily, but the fabric edges fray over time
Solution Approach 1:
The patent applies heat-sealable material to the fabric panels at the cuff locations. This heat-sealable material acts as a composite enhancement that seals the fabric edges without restricting the underlying fabric's stretching capability, preventing fraying while maintaining flexibility.
Solution Approach 2:
The patent changes the physical state of the fabric edges through heat sealing. By applying heat to the heat-sealable material, the fabric edges are sealed in a controlled manner that prevents fraying while the material's elastic properties ensure the sealed edges can still stretch and recover with the garment.
3Duration of action of stationary object
If heat-sealable material is applied to reinforce cuffs, then stretch and recovery properties are maintained longer, but the manufacturing process becomes more complex
Solution Approach 1:
The heat-sealable material is applied to the fabric panels during the initial garment construction process, before the cuffs are assembled. This preliminary application of the heat-sealable material integrates the reinforcement step into the existing manufacturing workflow, minimizing additional complexity while ensuring the material is in place to maintain recovery properties over time.
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 cuffs maintain stretch and recovery properties longer than the underlying fabric, reducing fraying and providing a comfortable, secure fit without bulkiness, as the heat-sealable material retains its properties even after extended wear and washing.
Implementation Method 1
heat-sealing the material onto the one or more fabric panels near the edges thereby creating the cuff
Implementation Method 2
an ultrasonic cutter is used to cut a portion of the heat-sealed material together with a portion of the one or more fabric panels that have been heat-sealed to the material. The cutting melts at least a portion of the heat-sealed material onto second edges of the fabric generated by the cutting to create substantially sealed second edges
Implementation Method 3
The heat-sealable material is configured to stretch to receive a first portion of a body part and recover from the stretched position to substantially hug a second portion of the body part at the cuff
Data Source
AI summary
A method for creating garment cuffs includes applying a high-polymer heat-sealable material on a cuff area of the fabric used for the garment. The heat-sealable material and the fabric underneath are then cut with an ultrasonic cutter to form the cuff and concurrently finish the lower edges of the cuff. The heat-sealable material has properties that allow it to stretch from an equilibrium point in response to tension applied on the material, and recover back towards the equilibrium point in response to release of the tension on the material. Reinforcing the cuff area with the heat-sealable material allows the cuff area to maintain its stretch and recovery properties even after the fabric has degraded after extended use and washing of the fabric. Furthermore, the ultrasonic cutting causes some of the heat-sealable film to melt into the cut edges of the fabric at the cuff to create substantially sealed edges at the cuff.