Garment Material With Embedded Liner For Cut Resistance
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Solution Overview
Problem
Single use disposable gloves have poor mechanical strength, including tear, cut, and abrasion resistance, which limits their use to once and results in environmental impact due to non-biodegradability, and they often fit poorly due to ambidextrous design.
Innovation Solution
A garment material comprising a first layer of shaped polymer, a second layer of shaped polymer with a liner embedded in it, and a textile layer, where the second layer is located between the first layer and the textile layer, providing improved mechanical strength and dexterity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If single use disposable gloves are made from thin polymer material to maintain dexterity, then dexterity is improved, but mechanical strength (tear, cut, and abrasion resistance) deteriorates
Solution Approach 1:
The patent applies composite materials by combining multiple polymer layers with different properties. The first layer provides chemical resistance, the second layer provides mechanical strength, and the textile layer provides comfort and breathability. This multi-layer composite structure resolves the contradiction by distributing functions across different materials, allowing thin overall thickness while maintaining both dexterity and mechanical strength.
Solution Approach 2:
The patent uses nesting by embedding a liner within the second polymer layer. The liner is positioned between the first and second layers, creating a nested structure where the liner reinforces the polymer material from within. This nested configuration enhances mechanical strength without significantly increasing external dimensions, thereby maintaining dexterity while improving tear, cut, and abrasion resistance.
2Strength
If single use disposable gloves are made from thick polymer material to improve mechanical strength, then mechanical strength is improved, but dexterity and comfort deteriorate
Solution Approach 1:
The patent uses composite materials to achieve high mechanical strength without thickening the overall glove structure. By combining thin polymer layers with a textile layer and embedded liner, the design distributes mechanical reinforcement internally, maintaining external thinness and flexibility for good dexterity while achieving superior mechanical strength through material composition.
Solution Approach 2:
The patent applies local quality by providing reinforcement only where needed through the embedded liner and multi-layer construction. Rather than uniformly thickening the entire glove, the reinforcement is localized to specific regions and layers, maintaining overall thinness and flexibility while providing enhanced mechanical strength at critical points.
3Object-generated harmful factors
If single use disposable gloves are made from reusable material to reduce environmental impact, then environmental sustainability is improved, but cost and complexity of care increase
Solution Approach 1:
The patent applies discarding and recovering by designing a reusable glove system that can be washed and reused multiple times, replacing the single-use disposable model. The multi-layer composite structure with embedded liner is designed to withstand repeated washing cycles, allowing the gloves to be recovered and reused, thereby reducing waste and environmental impact while maintaining protection performance.
4Ease of manufacture
If ambidextrous hand formers are used to reduce manufacturing complexity, then manufacturing complexity is reduced, but fit and dexterity deteriorate
Solution Approach 1:
The patent applies asymmetry by using hand-specific formers (left and right hand formers) instead of ambidextrous formers. This asymmetric approach creates gloves that are tailored to each hand's specific shape and contours, improving fit and reducing creasing that would otherwise compromise dexterity. The asymmetric design is achieved through separate molding processes for each hand, maintaining manufacturing feasibility while significantly improving ergonomic performance.
Data Source
AI summary
A garment material comprising: a first layer, wherein the first layer is a shaped polymer; a second layer, wherein the second layer is a shaped polymer that is provided at one or more locations on the first layer, the second layer taking the shape of the first layer at said one or more locations; and a textile layer; wherein the second layer is located between the first layer and the textile layer; wherein the second layer comprises a liner embedded in the shaped polymer of the second layer, the liner being formed of yarn and there are interstices through the liner, and wherein: the yarn of the liner has a weight per length of 10 to 60 Dernier; and the liner has a weight per area in the garment material or in a region of the garment material that is from 5 to 35 g/m2.