Exterior Plaiting Yarn for Cut-Resistant Protective Gloves

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Solution Overview

Problem

Existing glove manufacturing processes require the yarn with enhanced properties to be plaited to the inside of the fabric, which is time-consuming and inefficient when the cosmetic or functional need is for the plaiting yarn to be on the outside, necessitating an inversion step.

Innovation Solution

A glove construction method where the plaiting yarn is directly plaited to the exterior surface of the primary yarn, allowing for enhanced sections with superior physical properties such as cut or abrasion resistance to be formed on specific areas of the glove without inverting the glove, using a combination of yarns like ultra-high molecular weight polyethylene, fiberglass, and textured polyester.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the plaiting yarn is plaited to the inside of the fabric, then the enhanced properties are achieved, but the manufacturing process becomes time-consuming and inefficient when the plaiting yarn needs to be on the outside

Engineering Contradiction:

Improvemanufacturing efficiencyVSAvoidmanufacturing process complexity

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The patent inverts the conventional plaiting approach by plaiting the plaiting yarn to the exterior surface of the primary yarn instead of the interior surface. This reversal eliminates the need for glove inversion and allows the enhanced properties to be directly positioned on the outside of the glove, thereby improving manufacturing efficiency and eliminating the time-consuming inversion step

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If the glove is inverted to position the plaiting yarn on the outside, then the cosmetic and functional requirements are met, but the manufacturing time increases

Engineering Contradiction:

Improvecosmetic and functional requirement satisfactionVSAvoidmanufacturing time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent applies preliminary action by directly plaiting the plaiting yarn to the exterior surface during the initial glove manufacturing process. This preliminary positioning of the enhanced properties yarn on the outside eliminates the need for subsequent inversion operations, thereby meeting cosmetic and functional requirements while reducing manufacturing time

Inventive Principle:

Principle #10Preliminary action

3Ease of manufacture

If the plaiting yarn is placed on the interior surface, then the manufacturing process is simpler, but the glove does not meet cosmetic or functional requirements when plaiting yarn needs to be visible

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoidcosmetic requirement satisfaction

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The patent reverses the conventional approach by plaiting the plaiting yarn to the exterior surface rather than the interior surface. This inversion maintains manufacturing process simplicity while directly satisfying cosmetic requirements, as the enhanced properties yarn is visible and positioned on the outside of the glove from the beginning

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS9877529B2Protective glove with enhanced exterior sections

Publication Date: 2018.01.30 WORLD FIBERS INC

AI summary

A protective glove includes a primary yarn that forms the palm, thumb and finger sections of the glove. The primary yarn has an interior surface forming the interior surface of the glove, and an exterior surface forming the exterior surface of the glove. A plaiting yarn is plaited to portions of the exterior surface of the primary yarn to form a plurality of enhanced sections on the exterior surface of the glove. The enhanced sections having at least one substantially enhanced physical characteristic in relation to the primary layer, such as increased cut resistance.