Flat-warp-knitted fabric laminate for outdoor garments
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Solution Overview
Problem
Conventional outdoor garments, such as ski jackets, restrict mobility and freedom of movement due to their stiff woven materials, which fail to meet the varying requirements of protection from weather, breathability, and comfort during physical activities.
Innovation Solution
A garment made from a flat-warp-knitted fabric laminate, comprising a waterproof and vapor-permeable polyurethane film bonded to a flat-warp-knitted fabric, optionally with a knitted or mesh thermal insulation layer, and an inner lining, designed to provide enhanced stretchability, reduced seams, and improved design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional woven materials are used for outdoor garments, then weather protection and thermal insulation are provided, but freedom of movement and flexibility are restricted
Solution Approach 1:
The patent employs a flat-warp-knitted fabric laminate structure that combines flexibility with protective functions. The laminate consists of multiple layers including a waterproof vapor-permeable film and knitted fabric layers that can stretch and deform with body movements while maintaining thermal insulation and weather protection. This flexible shell approach eliminates the rigidity of conventional woven materials.
Solution Approach 2:
The invention uses a composite laminate structure combining different materials with complementary properties: a waterproof vapor-permeable film for weather protection, flat-warp-knitted fabric layers for flexibility and thermal insulation, and optional thermal insulation layers. This composite approach allows each material to contribute its specific function while working together to provide both protection and freedom of movement.
2Object-affected harmful factors
If woven materials with lining and filling are used, then weather protection is achieved, but mobility restriction increases
Solution Approach 1:
The patent replaces traditional stiff woven materials with a flexible flat-warp-knitted fabric laminate that includes an integrated waterproof vapor-permeable film. This flexible shell structure provides weather protection without requiring additional rigid lining and filling layers, thereby maintaining freedom of movement while protecting against weather elements.
3Object-affected harmful factors
If tight fit garments are made from inelastic fabric, then weather protection is improved, but freedom of movement is reduced
Solution Approach 1:
The patent changes the fundamental parameter of fabric elasticity by using flat-warp-knitted fabric which inherently possesses stretch and flexibility. This allows the garment to maintain a close fit for weather protection while the elastic properties of the knitted fabric enable free movement without restriction, eliminating the trade-off between fit and mobility.
4Strength
If conventional jackets are made from stiff materials, then structural integrity is maintained, but adaptability to physical activity is reduced
Solution Approach 1:
The patent employs a flexible flat-warp-knitted fabric laminate that maintains structural integrity through its engineered laminate construction while providing adaptability to physical activity through the inherent flexibility and stretch of the knitted fabric. The structure can dynamically adapt to various movements and physical conditions.
Solution Approach 2:
The invention introduces dynamics to the garment structure through the use of elastic knitted fabric that can change its shape and properties in response to physical activity. The laminate structure dynamically adapts to movement, providing structural support when needed and flexibility during physical activity, rather than being statically rigid.
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 significantly reduces mobility restrictions, enhances wearing comfort, and maintains thermal insulation while allowing for better breathability and water vapor permeability, resulting in a lightweight and flexible outdoor garment that feels like a 'second skin'.
Implementation Method 1
a waterproof but vapor-permeable, adhesively bonded film, stretchable in all directions, that adjoins this flat-warp-knitted fabric on its inner side
Implementation Method 2
further inwardly, optionally followed by a knitted fabric or mesh fabric made from fleecy thread as thermal insulation
Implementation Method 3
a waterproof but vapor-permeable, adhesively bonded film, stretchable in all directions, that adjoins this flat-warp-knitted fabric on its inner side
Data Source
AI summary
A garment comprising a warp-knitted fabric laminate comprising: a warp-knitted fabric forming an outer shell of the garment; an adhesively bonded film that adjoins the warp-knitted fabric on its inner side and conforms to the warp-knitted fabric; a thermal insulation layer optionally provided under the adhesively bonded film; and a warp-knitted inner lining coupled directly to the adhesively bonded film or the optionally provided thermal insulation layer, either detachably or fixedly by seams or stitches.