Fusion Packaging Structure for Recyclable, Stackable Pouches

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional pouches or structureless packages are not recyclable, prone to breakage, inefficient for shipping, and lack effective display on store shelves.

Innovation Solution

Fusion packaging that combines rigid and flexible components using injection molding, in-mold labeling, and bonding processes to create sealed packages with structural integrity, allowing for recyclable materials and efficient stacking and display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional pouches or structureless packages are used, then manufacturing simplicity is maintained, but structural integrity and resistance to breakage deteriorate

Engineering Contradiction:
Improvestructural integrityVSAvoidpackage structure
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The package is divided into two distinct components: a rigid base portion providing structural support and a flexible pouch portion containing the product. This segmentation allows each component to be optimized for its specific function while together they provide both strength and flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The package combines rigid and flexible materials into a single composite structure through fusion bonding. The rigid base portion and flexible pouch portion are bonded together to create a composite package that exhibits both structural integrity and flexibility, resolving the contradiction between strength and material simplicity.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If conventional pouches are used, then ease of manufacture is maintained, but recyclability deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidrecyclability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The rigid base portion is designed to be separable from the flexible pouch portion through the fusion bond. This extraction capability allows the rigid component to be removed and recycled separately, improving overall recyclability while maintaining the ease of manufacturing the integrated structure.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If conventional pouches are used, then simplicity of design is maintained, but shipping efficiency deteriorates due to inability to stack

Engineering Contradiction:
Improveshipping efficiencyVSAvoidpackage structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The rigid base portion provides a flat, stable foundation that enables packages to be stacked vertically and nested efficiently during shipping. This structural segmentation creates a footprint optimized for logistics while the flexible pouch portion maintains product containment functionality.

Inventive Principle:
Principle #1Segmentation

4Shape

If conventional pouches are used, then manufacturing simplicity is maintained, but display presentation on store shelves deteriorates

Engineering Contradiction:
Improvedisplay presentationVSAvoidpackage structure
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The rigid base portion provides structural support and stability for upright display on store shelves, while the flexible pouch portion can be shaped and printed for attractive product presentation. This segmentation allows optimization of both display functionality and visual appeal.

Inventive Principle:
Principle #1Segmentation

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 fusion packages provide recyclability, reduce breakage, enhance shipping efficiency, and improve shelf presentation while maintaining structural integrity and sustainability.

Implementation Method 1

The rigid base portion is formed by injection molding

Methodology Applied
Scientific EffectInjection molding:

Implementation Method 2

The rigid base portion is formed by injection molding and cooling

Methodology Applied
Scientific EffectCooling: Cooling

Implementation Method 3

The rigid base portion and flexible pouch portion are fusion bonded together

Methodology Applied
Scientific EffectFusion bonding:

Data Source

PatentEP4121362B1Fusion packaging
Publication Date: 2025.10.29 NIPRO INC
  • EP4121362B1 patent drawingFigure 1A~1B
  • EP4121362B1 patent drawingFigure 2
  • EP4121362B1 patent drawingFigure 3

AI summary

Disclosed herein are fusion packaging and fusion packages. One package includes a frame configured to provide structure for the package, a sidewall fused to the frame, and a tethered cap connected to one end of the frame. Another package includes a sleeve configured to provide structure for the package, a tethered cap fused to one end of the sleeve, and a seal configured to be fused to a remaining end of the sleeve after the package is filled with content. Another package includes a frame configured to provide structure for the package, a film fused to the frame, a cap connected to one end of the frame, the cap including a structure to retain the cap after removal from the frame, and a seal connected to another end of the frame, where one of the cap and seal are connected to the frame after material placement.