Segmented Ink Container Using Virgin and Recycled Plastics
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Solution Overview
Problem
Ink containers made of recycled plastics can dissolve in the ink they contain, affecting the ink's composition and quality.
Innovation Solution
Designing an ink container with a liquid-contact section made of virgin plastic and a liquid-non-contact section made of recycled plastics, ensuring that the recycled plastic section is kept from contact with the ink.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ink container is made of recycled plastics, then environmental friendliness is improved, but ink quality is deteriorated due to dissolution
Solution Approach 1:
The ink container is divided into two distinct sections: a liquid-contact section made of virgin plastic material and a liquid-non-contact section made of recycled plastic material. This segmentation allows the recycled plastic to be used in the container structure without direct contact with the ink, preventing dissolution and maintaining ink quality while still utilizing environmentally friendly materials.
Solution Approach 2:
Different material qualities are applied to different parts of the ink container based on their functional requirements. The liquid-contact section uses high-purity virgin plastic to ensure ink compatibility, while the liquid-non-contact section uses recycled plastic for structural support and environmental benefits. This local differentiation of material quality resolves the contradiction between environmental friendliness and ink quality.
2Ease of manufacture
If recycled plastics are used in liquid-contact section, then cost and sustainability are improved, but chemical stability is worsened
Solution Approach 1:
The container is segmented into liquid-contact and liquid-non-contact sections, allowing recycled plastics to be used in the non-contact portion where chemical stability is not critical, while virgin plastics are used in the contact portion where chemical stability is essential.
Solution Approach 2:
The material composition is locally optimized: virgin plastic provides chemical stability in the liquid-contact section, while recycled plastic provides cost-effective structural integrity in the liquid-non-contact section. This local quality differentiation resolves the contradiction between cost and chemical stability.
3Reliability
If virgin plastic is used throughout, then ink compatibility is improved, but environmental sustainability is worsened
Solution Approach 1:
By segmenting the container into liquid-contact and liquid-non-contact sections, the design allows virgin plastic to be used only where necessary for ink compatibility, while recycled plastic is utilized in the non-contact portion to improve environmental sustainability.
Solution Approach 2:
The design applies different material qualities locally: virgin plastic with superior ink compatibility is used in the liquid-contact section, while recycled plastic with better environmental profile is used in the liquid-non-contact section. This resolves the contradiction between ink compatibility and environmental sustainability.
Data Source
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AI summary
An ink container (100) includes a liquid-contact section and a liquid-non-contact section. The liquid-contact section is made of a virgin plastic material and is to be in contact with ink in the ink container. The liquid-non-contact section is made of a material containing recycled plastics and is to be kept from contact with the ink.