Time-Temperature Indicator Module With Guided Diffusion Sealing
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Solution Overview
Problem
Existing time-temperature indicating modules face issues with spread material leakage due to inadequate heat fusion, necessitating separate packaging materials like gelatin, which increases volume and complicates manufacturing, and lack clear visual indicators for diffusion start time points.
Innovation Solution
A time-temperature indicating module design featuring an indication window-printed film with an inflow region, diffusion guide lines, a diffusion film, and leakage-preventing films, utilizing corona discharge surface treatment and embossed surfaces to ensure secure diffusion and clear visual display of diffusion time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spread material is injected between two fabrics using the liquid-in sealing method, then the spread material can be contained, but the heat fusion is not properly made and the sealed portion is weakened causing leakage
Solution Approach 1:
The patent introduces a pipe-shaped fabric as an intermediary structure to contain the spread material. The fabric acts as a mediator between the injection system and the final sealed product, providing a structured container that maintains integrity during heat fusion and prevents leakage.
Solution Approach 2:
The patent uses a pipe-shaped fabric structure that can be heat-fused at its ends to create a sealed container. This flexible fabric shell approach allows for effective sealing through heat fusion while maintaining the contained volume necessary for holding the spread material without leakage.
2Reliability
If a separate packaging material such as gelatin is used to wrap the spread material, then the spread material is protected, but unnecessary space is caused and volume increases
Solution Approach 1:
The patent merges the containment function previously performed by separate packaging materials (like gelatin) into the pipe-shaped fabric structure itself. The fabric serves both as the structural element and the containment barrier, eliminating the need for additional packaging layers and reducing overall module volume.
Solution Approach 2:
The patent extracts and eliminates the unnecessary separate packaging material layer from the system. By using the pipe-shaped fabric as the primary containment structure, the design removes redundant packaging components while maintaining effective spread material containment.
3Reliability
If existing time-temperature indicating modules are used, then temperature monitoring is provided, but clear visual indication of diffusion start time point is not achieved
Solution Approach 1:
The patent employs color change indicators to visually mark the diffusion start time point. As the spread material diffuses through the fabric, color changes occur that provide clear visual information about the timing and progression of diffusion, allowing users to accurately determine when the process began.
Solution Approach 2:
The patent utilizes changes in physical parameters (such as transparency, color intensity, or diffusion distance) of the spread material as it moves through the fabric. These parameter changes serve as visual indicators that clearly mark the diffusion start time point and progression, enhancing information visibility without compromising temperature monitoring reliability.
Data Source
AI summary
The present invention relates to a time-temperature indicating module that causes a spread material whose degree of diffusion changes with temperature change to be absorbed and diffused into a diffusion material through induction of a crack, guides a diffusion direction of the spread material through a guide line printed in a longitudinal direction of the diffusion material and also enables a clear start time point of diffusion to be displayed.