Method for manufacturing multilayered coated fabric for personal protective equipment
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Solution Overview
Problem
Traditional gloves lack sufficient grip and abrasion resistance in wet or oily environments, failing to maintain user hand dryness and effective gripping ability.
Innovation Solution
A triple-layer coated fabric is developed, comprising a base coating layer for liquid resistance, a middle foam layer for liquid absorption, and an outer foam layer with holes for liquid penetration, enhancing grip and abrasion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single-layer coating is used, then the structure is simple and easy to manufacture, but the grip and abrasion resistance in wet or oily environments is insufficient
Solution Approach 1:
The coating is divided into three distinct layers: a base coating layer for liquid resistance, a middle foam layer for liquid absorption, and an outer foam layer with holes for controlled penetration. This segmentation allows each layer to perform its specific function, resolving the contradiction by providing enhanced grip and abrasion resistance through functional differentiation while maintaining a manageable multi-layer structure
Solution Approach 2:
The patent uses composite material construction with different foam densities in each layer. The base layer uses liquid-resistant material, the middle layer uses absorbent foam material with lower density (0.25-0.60 kg/L), and the outer layer uses higher density foam (0.70-0.9 kg/L) with holes. This composite approach enables simultaneous achievement of liquid resistance, liquid absorption, and abrasion resistance
2Stability of the object's composition
If the middle foam layer has high density to improve structure stability, then structural integrity improves, but liquid absorption capacity decreases
Solution Approach 1:
The patent optimizes the density parameter of the middle foam layer to a specific range (0.25-0.60 kg/L) that balances structural integrity and liquid absorption capacity. By carefully selecting this parameter range, the middle layer maintains sufficient structural stability while preserving its ability to absorb liquids effectively
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 triple-layer coated fabric maintains high gripping performance while providing enhanced abrasion resistance, even in wet or oily conditions, by absorbing liquids and allowing controlled penetration.
Implementation Method 1
The middle foam layer defines a middle layer foam density and the middle foam layer is configured to absorb at least a portion of liquid
Implementation Method 2
The outer foam layer is configured with holes to allow liquid to penetrate to the middle foam layer
Data Source
AI summary
A coating fabric and method of manufacturing the same are provided. A coated fabric includes a base coating layer. The base coating layer defines a smooth coating to resist liquid penetration to the fabric. The coated fabric also includes a middle foam coating layer that is deposited on at least a portion of the base coating layer. The middle foam layer defines a middle layer foam density and is configured to absorb at least a portion of liquid. The coated fabric further includes an outer foam coating layer that is deposited on at least a portion of the middle foam coating later. The outer foam layer defines an outer layer foam density and is configured with holes to allow liquid to penetrate to the middle foam layer. The middle layer foam density is less than the outer layer foam density. A corresponding method of manufacturing is also provided.