Protective Glove Colorimetric Indicator Layer
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Solution Overview
Problem
Suppliers often conservatively specify the performance level of protective gloves, leading to shorter usage times than actual capabilities, and there is a need for a method to indicate the remaining operational life of gloves exposed to harsh chemicals.
Innovation Solution
Incorporating a colorimetric indicator layer using pH indicators like bromophenol blue within the glove's layers, which changes color when exposed to harsh chemicals, indicating the remaining operational life, such as 10% of the glove's lifetime, through a dip coating or direct printing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suppliers conservatively specify performance level of protective gloves, then reliability of safety specification is improved, but duration of action of glove (service life) deteriorates
Solution Approach 1:
The patent embeds a colorimetric indicator layer within the glove structure that proactively monitors chemical exposure and provides advance warning of degradation. This preliminary detection system allows users to extend glove service life beyond conservative supplier specifications by providing real-time feedback on actual glove condition, enabling safer extended use when chemicals haven't yet compromised protection.
Solution Approach 2:
The indicator layer provides continuous visual feedback on the glove's chemical resistance status through color changes. This feedback mechanism allows users to adjust their usage patterns based on actual glove performance rather than fixed conservative estimates, resolving the contradiction by enabling reliable extension of service life while maintaining safety through monitored feedback.
2Ease of operation
If no service life tracking is implemented, then ease of operation is improved, but loss of information about glove condition deteriorates
Solution Approach 1:
The glove's indicator layer autonomously monitors its own chemical exposure and provides self-diagnosis through color changes. This self-service capability eliminates the need for external tracking systems or complex monitoring equipment, maintaining ease of operation while preventing information loss about glove condition and degradation status.
3Measurement precision
If colorimetric indicator layer is embedded in glove, then measurement precision of glove condition is improved, but device complexity deteriorates
Solution Approach 1:
The patent merges the indicator function directly into the glove's structural layers by embedding the colorimetric indicator layer within the multi-layer construction. This integration combines protective and monitoring functions into a unified structure, achieving precise chemical exposure detection without adding separate monitoring devices or complex external systems.
Solution Approach 2:
The patent employs colorimetric indicators that provide precise measurement of chemical exposure through visible color changes. This approach achieves high measurement precision using simple optical detection that users can perform instantly with the naked eye, avoiding complex instrumentation while maintaining accurate condition monitoring.
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 smart glove system provides a visible color change on the surface, signaling the user when the glove has reached 10% of its useful life, ensuring safer handling and extended use within specified chemical limits, enhancing user safety and compliance with performance standards.
Implementation Method 1
an indicator layer embedded in the glove at the bottom surface of the first protective layer and formed of a material that changes color of a solution when exposed to the solution penetrating the first protective layer
Data Source
Figure 1~2
Figure 3
AI summary
A protective glove (100, 200, 300) formed of multiple layers including a first protective layer (110, 310) having a top surface and a bottom surface, an indicator layer (115, 315, 320, 325, 330) embedded in the glove at the bottom surface of the first protective layer and formed of a material that changes color of a solution when exposed to the solution penetrating the first protective layer, wherein the change in color of the solution becomes visible from the top surface of the first protective layer, and a second protective layer (120, 310) formed such that the indicator layer is between the second protective layer and the first protective layer.