Disposable Paper Glove Inner Waterproof Layer
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Solution Overview
Problem
Existing disposable protective gloves impregnated on the outer grip surfaces fail to prevent softening due to user sweat, leading to cracks and permeability.
Innovation Solution
A disposable protective glove with a water-repellent and/or waterproof layer on the inside, particularly on the palm side, and optionally on the back, is designed with a separate layer that extends over a significant portion of the hand area, using materials like chromium(III) salt, fatty acid, wax, grease, silicone, or oil, to prevent penetration by perspiration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outer grip surfaces are impregnated, then grip performance is improved, but the glove softens due to sweat leading to cracks and permeability
Solution Approach 1:
The glove is divided into functional zones: an inner water-repellent layer on the palm side to prevent sweat penetration and maintain structural integrity, and an outer impregnated layer for grip enhancement. This segmentation allows each layer to perform its specific function without compromising the other.
Solution Approach 2:
The water-repellent impregnation is applied selectively to the palm side area where sweat contact occurs, while the outer grip surfaces receive different treatment. This local differentiation ensures that the palm area resists moisture-induced softening while maintaining grip performance on the outer surfaces.
2Reliability
If a water-repellent layer is added to prevent sweat penetration, then glove integrity is improved, but device complexity increases
Solution Approach 1:
The water-repellent layer is integrated into the glove structure during manufacturing, combining the protective function with the base glove material. This merging approach adds functionality without requiring separate attachment steps or complex assembly processes.
Solution Approach 2:
The water-repellent impregnation is applied to the palm side area during the manufacturing process before the glove is put into service. This preliminary treatment ensures that the protective layer is already in place and functional when the glove is first used, eliminating the need for additional user assembly steps.
3Reliability
If the water-repellent layer covers the entire glove, then protection is improved, but material usage and cost increase
Solution Approach 1:
The water-repellent impregnation is applied selectively only to the palm side area where sweat contact and moisture penetration are most likely to occur. This localized application provides maximum protection where needed while minimizing material usage on areas such as the back of the hand where sweat contact is minimal.
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 effectively prevents or delays liquid penetration from the outside and maintains glove integrity by using a separate waterproof layer, enhancing durability and protection.
Implementation Method 1
a water-repellent and/or waterproof layer on the inside, particularly on the surface oriented towards the palm of the wearer
Data Source
AI summary
The invention relates to a disposable protective glove as known from DE 4244364 A1. From that document, it is known to impregnate a paper glove on the outside of the gripping surfaces. The inventor recognized that this does not prevent the glove from softening due to the wearer's perspiration, which can lead to cracks and permeability in the glove despite the known impregnation. The glove according to the invention therefore has a water-repellent and/or waterproof layer on the inside, particularly on the surface oriented towards the palm of the wearer, and especially at least in the area of the metacarpal. The layer can be implemented as a coating or as a separate layer, particularly as a paper layer provided with a coating. This layer can effectively prevent or delay permeation by perspiration.