Transverse Bottom Gusset for Variable Height Packages
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional bottom-gusseted packages are limited in height by the width of the polymeric film web, restricting their maximum height and versatility in configuration.
Innovation Solution
The method involves forming a bottom gusset positioned transversely to the longitudinal axis of the polymeric film web, allowing for packages of any selected height, with the gusset extending upwardly and inwardly from the package panels, and incorporating a recloseable fastener assembly or top sleeve portion for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the conventional method of forming bottom gusset by pleating web parallel to longitudinal axis is used, then the package can be formed with continuous inwardly extending bottom gusset, but the maximum height of package is limited by the maximum width of the web of polymeric material
Solution Approach 1:
The bottom gusset is repositioned from a longitudinal configuration (parallel to web axis) to a transverse configuration (perpendicular to web axis). This dimensional change allows the gusset to be formed across the width of the web rather than along its length, enabling package heights to exceed the web width limitation while maintaining structural integrity and self-standing capability
2Length of stationary object
If the web width determines package height, then the forming process is simplified, but the package height is restricted and cannot exceed the web width
Solution Approach 1:
The gusset formation is transitioned from longitudinal pleating to transverse positioning, changing the dimensional relationship between gusset orientation and web axis. This allows the gusset to span the web width transversely, decoupling package height from web width constraints while maintaining manufacturability through modified forming equipment
Solution Approach 2:
The package structure is segmented into distinct components: front and rear panels formed from the web, and a separate bottom gusset positioned transversely between them. This segmentation allows independent optimization of each component's dimensions and formation process, enabling package height to be determined by panel length rather than web width
Data Source
AI summary
A bottom-gusseted package comprises a package body, and a bottom gusset positioned transversely of a longitudinal axis of the package body. Formation of the bottom-gusseted package is effected by positioning individual sleeves transversely of the longitudinal axis of a flexible web which forms the package body. During package formation, the flexible web is cut to form individual packages, with each individual sleeve positioned to form a bottom gusset in a respective package. Optionally, the individual sleeve portions can be configured such that when the flexible web is cut to form individual packages, and each individual sleeve is be cut to form a bottom gusset in one package, and a top sleeve portion in an adjacent package.