Fiber Sheet Composite Layers Balancing Elasticity and Slip Resistance
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Solution Overview
Problem
Existing fiber sheets with crimped fibers, while exhibiting excellent elasticity, lack slip resistance when used as bandages or the like, leading to potential movement or slippage on the body.
Innovation Solution
A fiber sheet comprising a first layer of crimped fibers with a coil shape and a second layer of elastomer fibers integrated by fusion or adhesion, with a predetermined thickness ratio, allowing the elastomer fibers to expand and contract with the crimped fibers, enhancing slip resistance and maintaining repetitive elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a nonwoven fabric contains crimped fibers to achieve elasticity, then repetitive elasticity is improved, but slip resistance deteriorates
Solution Approach 1:
The patent combines crimped fibers (providing elasticity) with elastomer fibers (providing slip resistance) to form a composite nonwoven fabric. The elastomer fibers are integrated into the fiber layer containing crimped fibers, creating a material that exhibits both repetitive elasticity and slip resistance simultaneously.
Solution Approach 2:
The elastomer fibers are distributed within the fiber layer at specific concentrations (0.1-10 wt%, preferably 0.5-5 wt%) to provide slip resistance at the surface while maintaining the elastic properties of the crimped fibers in the bulk structure.
2Object-generated harmful factors
If elastomer fibers are added to improve slip resistance, then slip resistance is improved, but strength deteriorates
Solution Approach 1:
The patent optimizes the concentration of elastomer fibers within specific ranges (0.1-10 wt%, preferably 0.5-5 wt%) to achieve the desired balance between slip resistance and strength. This parameter optimization ensures that slip resistance is improved without excessive addition of elastomer fibers that would compromise the overall strength of the nonwoven fabric.
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 combined fiber layers provide slip resistance while maintaining repetitive elasticity, improving the strength and durability of the fiber sheet.
Implementation Method 1
the elastomer fibers can repeatedly expand and contract
Implementation Method 2
crimped fibers each having a coil shape, the first fiber layer having repetitive elasticity in a longitudinal direction
Implementation Method 3
the second fiber layer is integrated with the first fiber layer by fusion or adhesion
Implementation Method 4
the second fiber layer is integrated with the first fiber layer by fusion or adhesion
Implementation Method 5
the elastomer fibers can repeatedly expand and contract as well together with the coil-shaped crimped fibers, and as a result, the resulting fiber sheet has slip resistance
Data Source
AI summary
Provided is a fiber sheet having elasticity. The fiber sheet (10) includes at least: a first fiber layer (1) containing crimped fibers each having a coil shape, the first fiber layer (1) having repetitive elasticity in a longitudinal direction of the fiber sheet; and a second fiber layer (2) containing elastomeric fibers. The second fiber layer (2) is integrated with the first fiber layer (1) by fusion or adhesion in a specific thickness ratio therebetween.