Composite Liquid Agent Package with Fusion-Bonded Sealants
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Solution Overview
Problem
The existing composite liquid agent packages for dental adhesives face manufacturing inefficiencies due to difficulties in heat-fusing pouches with different sealability properties and ease-of-use issues such as liquid splattering and applicator insertion challenges.
Innovation Solution
The integration of pouches using extruded sealants from their outer layers, which are fusion-bonded to form a binding portion, and the use of a kit with an outer bag to contain and mix the liquid agents securely, enhancing manufacturing efficiency and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pouches with different sealability properties are heat-fused together, then integration of liquid agent housing portions is achieved, but manufacturing complexity increases due to difficulty in heat-fusing pouches with different sealability
Solution Approach 1:
A binding portion made of heat-sealable material is introduced as an intermediary component between pouches with different sealability properties. This binding portion acts as a mediator that can be heat-fused to various pouch types without requiring the pouches themselves to be directly heat-fusable, thereby simplifying the overall manufacturing process
Solution Approach 2:
The package structure is segmented into separate components: liquid agent housing portions (pouches) and a binding portion. This segmentation allows each component to be manufactured independently with appropriate materials, and then assembled together through heat-fusion of the binding portion, avoiding the complexity of directly heat-fusing incompatible pouch materials
2Ease of operation
If the package is open at the opposite end edge for applicator insertion, then ease of operation is improved, but liquid splattering occurs during mixing
Solution Approach 1:
The binding portion serves as an intermediary barrier that seals the opposite end edge of the package while incorporating penetration holes for applicator insertion. This allows the package to remain closed and prevent liquid splattering, while still enabling applicator access through the sealed binding portion
Solution Approach 2:
The binding portion is made of heat-sealable material that forms a flexible yet sealed barrier. This material can be heat-fused to create a closed package structure that prevents liquid leakage, while allowing penetration holes to be formed for applicator insertion without compromising the seal integrity
3Productivity
If multiple pouches are integrated into a single package, then productivity is improved by reducing preparation steps, but manufacturing precision decreases due to positioning difficulties
Solution Approach 1:
The binding portion provides a uniform heat-sealable structure that interfaces consistently with multiple pouches. This homogeneity in the binding interface simplifies the positioning and assembly process, allowing multiple pouches to be accurately and efficiently integrated into the package without complex positioning mechanisms
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 solution allows for easier handling and integration of pouches, prevents liquid splattering, and facilitates easy applicator insertion, improving manufacturing yield and user experience.
Implementation Method 1
heating and pressing to be performed on the superposed opposite end sections
Implementation Method 2
a part of the sealant constituting the inner layer is extruded outwardly
Implementation Method 3
the extended-out sealants are fusion-bonded together and integrated thereby
Data Source
AI summary
A composite liquid agent package containing a first pouch filled with a first liquid and a second pouch filled with a second liquid; and a kit for preparing a multicomponent composition, the kit including an outer bag housing the composite liquid agent package. With an opposite end section of the first pouch and an opposite end section of the second pouch being superposed, the superposed parts are heated and pressurized to exclude sealants, which are present within the opposite end sections, outwardly of the extremities of the outer layers of the opposite end sections, while heat-fusing the two extruded sealants together to join the two pouches.