Method for producing supporting glove
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Solution Overview
Problem
Conventional supporting gloves face a trade-off between preventing discomfort due to polymer film permeation 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 polymer films that cover the outer surface without reaching the inner surface, ensuring adhesion and durability.
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 strength is improved, but the polymer film is formed further to the inner surface of the supporting glove causing wearer discomfort
Solution Approach 1:
The polymer film formation process is segmented into two distinct stages: first forming an inner polymer film layer that penetrates to the inner surface to prevent wearer discomfort, then forming an outer polymer film layer that provides adhesion strength. This segmentation allows each layer to fulfill its specific function without compromising the other.
Solution Approach 2:
Different regions of the polymer film are given different properties: the inner surface region contains polymer that penetrates to prevent discomfort, while the outer surface region contains polymer that provides adhesion. The polymer suspension is applied with controlled concentration and drying conditions to achieve this local differentiation.
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 easily peeled off from the knitted glove
Solution Approach 1:
The polymer film is segmented into inner and outer layers with different formation mechanisms. The inner layer is formed by polymer penetration during controlled drying, while the outer layer is formed by coagulation from polymer suspension application, ensuring both comfort and adhesion.
Solution Approach 2:
The knitted glove is preliminarily treated by applying and drying a polymer mixed liquid to form an inner polymer film layer before applying the polymer suspension. This preliminary action ensures polymer presence at the inner surface to prevent discomfort while preparing the structure for subsequent outer film formation.
3Ease of manufacture
If a single polymer suspension application is used to simplify the process, then manufacturing complexity is reduced, but the trade-off between wearer comfort and film adhesion cannot be resolved
Solution Approach 1:
The manufacturing process is segmented into sequential steps: applying and drying polymer mixed liquid to form inner film, then applying polymer suspension to form outer film. This segmentation resolves the reliability issue by ensuring both comfort and adhesion requirements are met through distinct formation mechanisms.
Solution Approach 2:
The inner polymer film formation is performed as a preliminary action before outer film formation. This sequence ensures that the inner surface requirements are satisfied first, then the outer surface adhesion requirements are addressed, achieving both goals reliably.
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 comfortable wear and durable adhesion to the glove.
Implementation Method 1
applying a first polymer mixed liquid including a first liquid and a first polymer, the first polymer mixed liquid including 0.2 mass % or more and 4.0 mass % or less of the first polymer, to at least a part of a knitted glove; 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
applying a second polymer mixed liquid including a second liquid and a second polymer, the second polymer mixed liquid including 20 mass % or more and 65 mass % or less of the second polymer, to at least a part of an area of the knitted glove after applying the coagulant solution; 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.