Ink Storage Container Surface Energy Layout for Clean Pouring
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Solution Overview
Problem
Existing ink storage containers face issues with ink visibility, ease of pouring, and storage reliability, particularly with inks having low surface tension that can soak and spread on container walls, and movable parts like bellows structures that may wear out.
Innovation Solution
The ink storage container is designed with an ink storage unit having an inner wall with a surface free energy lower than the ink's surface tension and an ink filling unit with a higher surface free energy, facilitating smooth filling while maintaining visibility and preventing ink spread, and incorporating a valve mechanism for sealing and pressure equalization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the container is made transparent to improve visibility of ink level, then visibility is improved, but ink may soak and spread on the inner wall making the liquid level hard to recognize
Solution Approach 1:
The container is divided into two regions with different surface free energy characteristics: the ink storage unit has low surface free energy to prevent soaking, while the ink filling unit has high surface free energy to facilitate pouring. This local differentiation resolves the contradiction by giving each region the property it needs for its specific function.
Solution Approach 2:
The surface free energy parameter of the container material is specifically controlled to be lower than the surface tension of the ink. This parameter change prevents the ink from soaking and spreading on the inner wall, maintaining clear visibility of the liquid level while preserving transparency.
2Ease of operation
If a bellows structure is used to improve ease of pouring ink, then ease of operation is improved, but the structure may wear out and break with repeated use reducing reliability
Solution Approach 1:
The bellows structure is removed entirely from the design. Instead, the container uses a simple valve mechanism in the ink filling unit that opens when the container is tilted, allowing ink to pour smoothly without any expandable or movable components that could wear out.
Solution Approach 2:
The design accepts that the ink storage container may be discarded after use, eliminating the need for complex, durable pouring mechanisms. The simple valve structure requires no maintenance and the container can be replaced rather than repaired.
3Ease of operation
If the surface free energy of the container is increased to improve ease of pouring, then ink flow is improved, but ink may soak and spread on the inner wall reducing visibility
Solution Approach 1:
Different regions of the container have different surface free energy levels: the ink storage unit has low surface free energy to prevent soaking and maintain visibility, while the ink filling unit has high surface free energy to facilitate smooth pouring. This spatial differentiation resolves the contradiction.
Solution Approach 2:
The valve mechanism acts as an intermediary between the ink storage unit and the external environment. It controls ink flow through a defined opening rather than allowing uncontrolled spreading, enabling easy pouring while preventing the ink from soaking into the container walls.
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
This design ensures easy and efficient ink filling, reduces ink waste, promotes reuse, and enhances visibility by preventing ink spread, contributing to a sustainable society by minimizing discarded ink and reducing cleaning costs.
Implementation Method 1
the ink storage unit is a region where surface free energy of an inner wall is lower than a surface tension of the ink
Implementation Method 2
the ink filling unit is a region where surface free energy of an inner wall portion that comes into contact with the ink in a case of pouring the ink from the ink storage unit is higher than the surface tension of the ink
Data Source
AI summary
An ink storage container includes an ink storage unit that stores ink therein and an ink filling unit communicated with the ink storage unit, wherein the ink storage unit is a region where surface free energy of its inner wall is lower than a surface tension of the ink, and the ink filling unit is a region where surface free energy of its inner wall portion that comes into contact with the ink in a case of pouring the ink from the ink storage unit is higher than the surface tension of the ink.