Pouch Inner Supporting Member for Bulging Prevention
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Solution Overview
Problem
Resin film pouches experience body bulging due to fluid content weight, requiring increased storage space and strengthened outer cases when used in bag-in-box format, which complicates storage and transportation.
Innovation Solution
Incorporating an inner supporting member with fixing portions within the pouch main body, thermally fused to the film surfaces, to maintain the pouch shape and prevent bulging, while allowing for reduced storage space and simplified configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an inner supporting member is added to prevent body bulging, then pouch shape stability is improved, but device complexity increases
Solution Approach 1:
The inner supporting member is constructed from a flexible resin film that maintains pouch shape stability while accommodating content volume changes. The film's flexibility allows it to function as a support structure without creating rigid complexity, enabling the pouch to adapt to filling and dispensing cycles while preventing body bulging.
Solution Approach 2:
The inner supporting member is disposed inside the pouch main body, nested within the existing pouch structure. This nested configuration allows the support function to be integrated into the pouch without requiring external structural additions, thereby improving shape stability while minimizing increases in overall device complexity.
2Productivity
If thermal fusing is used to fix the inner supporting member, then manufacturing efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The thermal fusing process utilizes the heat generated during the pouch sealing operation to simultaneously fuse the inner supporting member to the pouch main body. This self-service approach allows the same thermal process that seals the pouch to also attach the support member, improving manufacturing efficiency by consolidating operations while maintaining precision through controlled thermal parameters.
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 inner supporting member effectively prevents pouch separation and bulging, reducing storage needs and eliminating the need for strong outer cases, while ensuring secure content dispensing and improved manufacturing efficiency.
Implementation Method 1
thermally fusing a partial region between facing surfaces of the front side film and the inner supporting member and thermally fusing a partial region between facing surfaces of the rear side film and the inner supporting member
Data Source
AI summary
To provide a pouch for achieving a reduced storage space with a simple configuration and a method for manufacturing the pouch. A pouch (10) including a gusset portion (22) includes a pouch main body (20) and an inner supporting member (70) disposed inside the pouch main body (20). The pouch main body (20) includes a content containing portion (21) and a first fixture portion (24) and a second fixture portion (25) that face each other across the content containing portion (21). The inner supporting member (70) includes a first fixing portion (71) fixed to the first fixture portion (24) and a second fixing portion (72) fixed to the second fixture portion (25).