Product Web Separation for Even Edges in Garment Production
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Solution Overview
Problem
Existing processes for producing garments intended for the lower torso, such as boxer shorts, often result in aesthetically unpleasing products with uneven edges and loose trim, especially when using multiple webs and automated high-speed converting systems, which complicates the production of garments with absorbent assemblies.
Innovation Solution
A process that involves transporting a product web in a machine direction, creating a line of weakness in the cross machine direction, and separating the web into discrete products, allowing for the formation of garments with even, pleasing edges and optional absorbent assemblies, capable of being produced at elevated speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated high-speed converting systems are used to produce garments, then productivity increases, but manufacturing precision deteriorates resulting in uneven edges and loose trim
Solution Approach 1:
The garment web is divided into individual garment sections by creating lines of weakness through perforation or scoring. This segmentation allows each section to be separated cleanly during high-speed production, maintaining edge uniformity while enabling continuous manufacturing. The perforations create predetermined break points that ensure consistent separation without compromising the integrity of adjacent garment sections.
2Productivity
If multiple webs are used and folded to create garments, then productivity increases, but device complexity increases making the process more complicated
Solution Approach 1:
Multiple garment sections that would traditionally require separate processing are combined into a single continuous web. The web contains multiple folded sections that can be processed simultaneously through perforation and separation, reducing the number of individual processing steps and simplifying the overall manufacturing system while maintaining high productivity.
3Manufacturing precision
If garments are produced with even edges free of trim, then manufacturing precision improves, but loss of substance increases due to material used in creating lines of weakness
Solution Approach 1:
The method changes the physical state or properties of the material at the separation line through perforation or scoring. By creating controlled weaknesses in the web structure, the material can be separated cleanly without requiring additional trimming operations that would remove more material. The perforations themselves become the separation mechanism, minimizing waste while achieving precise edge definition.
Data Source
AI summary
A process for separating a product web into discrete products is disclosed. The process can include transporting the product web in a machine direction, creating a line of weakness in the product web, and separating the product web into discrete product elements at the line of weakness.