Supporting glove
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Solution Overview
Problem
Conventional supporting gloves face a trade-off between preventing discomfort due to polymer film penetration into the inner surface and maintaining the film's adhesion to the knitted glove, leading to issues of the film peeling off during use.
Innovation Solution
A method involving the application of a first polymer mixed liquid with a specific concentration range to a knitted glove, followed by a coagulant solution, and then a second polymer mixed liquid, to form films that cover the outer surface without reaching the inner surface, ensuring adhesion and preventing peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the knitted glove is sufficiently immersed in the polymer suspension to have the polymer film hardly peeled off from the knitted glove, then the adhesion of the polymer film is improved, but the polymer film is formed further to the inner surface of the supporting glove causing wearer discomfort
Solution Approach 1:
The patent divides the polymer film formation into two distinct stages: first forming an inner polymer film layer that covers the yarn throughout the entire thickness direction, then forming an outer polymer film layer that covers only the outer surface. This segmentation allows the inner layer to provide adhesion while the outer layer provides the wearing surface, preventing polymer penetration to the inner surface that causes discomfort.
Solution Approach 2:
The patent applies different polymer concentrations to different regions: a first polymer mixed liquid with 0.2-4.0 mass % polymer concentration is applied to form the inner film, while a second polymer mixed liquid with 20-65 mass % polymer concentration is applied to form the outer film. This local quality differentiation ensures proper adhesion at the inner layer while maintaining comfort at the outer wearing surface.
2Object-affected harmful factors
If the polymer suspension is prevented from permeating to the inner surface of the knitted glove to suppress wearer discomfort, then wearer comfort is improved, but the polymer film is not formed to the inner surface causing the polymer film to be easily peeled off
Solution Approach 1:
The patent segments the polymer film into two functional layers: the first polymer film formed by the first polymer mixed liquid provides adhesion to the knitted glove, while the second polymer film formed by the second polymer mixed liquid provides the outer wearing surface. This segmentation resolves the contradiction by ensuring both adhesion and comfort without polymer penetration to the inner surface.
Solution Approach 2:
The patent performs preliminary action by first applying and drying the first polymer mixed liquid to form the inner polymer film that adheres to the knitted glove, then applying the coagulant solution, and finally applying the second polymer mixed liquid to form the outer polymer film. This sequential preliminary action ensures proper adhesion before forming the outer layer.
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 suppresses wearer discomfort and prevents polymer film peeling, achieving both desired properties simultaneously.
Implementation Method 1
drying the first polymer mixed liquid applied to the knitted glove
Implementation Method 2
applying a coagulant solution to the knitted glove after drying the first polymer mixed liquid
Implementation Method 3
drying the second polymer mixed liquid applied to the knitted glove
Data Source
AI summary
A method for producing a supporting glove includes the steps of applying a specific amount of a first polymer mixed liquid to a knitted glove; drying the first polymer mixed liquid applied to the knitted glove; applying a coagulant solution to the knitted glove after drying; applying a specific amount of a second polymer mixed liquid to the knitted glove after applying the coagulant solution; and drying the second polymer mixed liquid applied to the knitted glove. A first polymer film is formed to cover a yarn knitted into the knitted glove over the entire thickness direction of at least the part of the knitted glove. A second polymer film is formed to continuously cover the first polymer film to form at least a part of an outer surface and not reaching an inner surface of the knitted glove.