Separable Ink Pack Design for Plastic Reduction
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Solution Overview
Problem
Ink cartridges have high carbon dioxide emissions due to excessive plastic use in their manufacturing and low ink-pack reuse rates, as the entire ink pack needs to be replaced when damaged.
Innovation Solution
A separable ink pack design comprising a first pack containing ink and a second pack that accommodates it, allowing for close contact and separation by pressure reduction or air injection, enabling reuse and reduction of plastic usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire ink pack is replaced when damaged, then the reliability is improved, but the loss of substance worsens due to low reuse rates
Solution Approach 1:
The ink pack is divided into two separable components: a first pack containing the ink and a second pack that accommodates it. This segmentation allows the ink-containing first pack to be replaced while reusing the protective second pack, thereby improving reuse rates without compromising reliability.
Solution Approach 2:
The design enables selective replacement of only the ink-containing first pack while recovering and reusing the protective second pack. This approach maximizes material utilization and reduces waste compared to replacing the entire ink pack assembly.
2Reliability
If a protective case is used to protect the ink pack, then the reliability is improved, but the loss of substance worsens due to excessive plastic usage
Solution Approach 1:
The protective function is separated from the ink-containing function. The second pack serves as a reusable protective container that can accommodate and protect multiple first packs, reducing the need for excessive protective materials for each individual ink unit.
Solution Approach 2:
The second pack is designed as a universal protective container that can accommodate and protect the first pack. This multi-functional design reduces the need for separate protective cases for each ink cartridge, thereby reducing overall plastic material usage.
3Ease of repair
If the first pack and second pack are separated, then the ease of repair is improved, but the device complexity worsens due to separable structure
Solution Approach 1:
The ink pack is segmented into a first pack (ink container) and a second pack (protective container) that can be easily separated and recombined. This simple segmentation enables easy replacement and reuse operations without requiring complex 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 design enhances ink pack reuse rates and reduces plastic material usage and carbon emissions by allowing damaged components to be replaced, maintaining ink stability and discharge efficiency.
Implementation Method 1
reducing the pressure in a space between the first pack and the second pack such that the first pack and the second pack come into close contact with each other
Implementation Method 2
injecting air into a space between the first pack and the second pack to form an air layer between the first pack and the second pack
Data Source
AI summary
An ink pack configured to supply an ink to an ink-consuming apparatus includes a first pack configured to contain the ink, an ink supplying section provided to the first pack, the ink supplying section being configured to supply the ink to the ink-consuming apparatus, and a second pack configured to accommodate the first pack. The first pack and the second pack are separable.