Liquid Container Barrier Protection for Reuse
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Solution Overview
Problem
Existing liquid containers face issues with recyclability due to potential damage to the liquid-containing bag from vibration and shock, leading to cracks in the barrier layer and making reuse difficult.
Innovation Solution
A liquid container design featuring a liquid-containing bag protected by a protective member with a barrier function, using materials like cardboard or biodegradable plastics, and an internal aluminum foil layer to prevent liquid permeation and deformation, along with a communication plug to manage internal pressure and evaporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a liquid-containing bag made of multilayer film with barrier function is used, then liquid permeation is suppressed, but tiny cracks may occur in the barrier layer due to vibration or shock, making reuse difficult
Solution Approach 1:
The protective case is divided into a hard outer shell and a soft inner cushioning layer, with each layer serving a specific function: the hard shell provides structural strength against shock, while the soft layer absorbs vibration and protects the barrier film from cracking
Solution Approach 2:
The protective case combines materials with different properties (hard plastic for structural integrity, soft foam for vibration absorption) to create a composite structure that simultaneously provides both strength and vibration resistance, protecting the barrier film from damage
2Ease of manufacture
If a protective case made of cardboard is used, then recyclability is improved, but the soft liquid-containing bag may still develop cracks in the barrier layer due to insufficient protection
Solution Approach 1:
The protective case uses a composite structure combining hard plastic (for shock resistance) and soft foam (for vibration absorption), maintaining recyclability while providing superior protection compared to cardboard alone
Solution Approach 2:
The protective case is segmented into distinct functional layers: an outer hard shell for structural protection and an inner soft layer for vibration damping, ensuring both protection effectiveness and material recyclability
3Ease of operation
If the liquid-containing bag is made soft for flexibility, then ease of operation is improved, but vulnerability to vibration and shock increases
Solution Approach 1:
The soft inner layer of the protective case is designed to cushion the liquid-containing bag before external vibrations or shocks can reach it, absorbing and dissipating mechanical energy to prevent cracks in the barrier layer while maintaining bag flexibility for ease of operation
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
Enables the reuse of the liquid-containing bag by minimizing damage from vibration and shock, maintaining liquid integrity and ensuring stable printing performance, with reduced evaporation and viscosity changes.
Implementation Method 1
a protective member configured with a barrier function for suppressing permeation of the liquid contained in the liquid-containing bag
Data Source
AI summary
A liquid container includes a liquid-containing bag that contains a liquid, a joining member that communicates with the liquid-containing bag and is connected to an apparatus that consumes the liquid contained in the liquid-containing bag, and a protective member that accommodates the liquid-containing bag and includes a barrier function that suppresses permeation of the liquid contained in the liquid-containing bag.