Disinfectant Visualizing Ink and Sheet for Direct Color Confirmation
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Solution Overview
Problem
Existing disinfectant visualization technologies require special tools, are difficult to store for long periods due to reactive substance mixing, and lack efficient methods to record and manage multiple sterilization targets, leading to potential errors in application status.
Innovation Solution
A disinfectant visualizing ink and sheet that includes a visualizing agent changing color upon disinfectant application, dispersed in an aqueous liquid with specific dispersants, allowing easy storage and visual confirmation of disinfectant application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fluorescent material is used to visualize sterilization operation, then visualization is achieved, but special tools are required making it inconvenient
Solution Approach 1:
The patent introduces a pH-responsive dye as an intermediary substance that reacts with the disinfectant to produce visible color change. This mediator eliminates the need for special UV lighting tools while achieving visualization of the sterilization process through direct colorimetric response to the disinfectant's pH properties
Solution Approach 2:
The patent replaces the mechanical/optical system (UV light source and fluorescent material requiring special tools) with a chemical system (pH-responsive dye that changes color upon reaction). This substitution eliminates the need for special equipment while maintaining visualization capability
2Ease of manufacture
If two reactive substances are mixed into one liquid for color change, then visualization is achieved, but the product is difficult to store for long period of time
Solution Approach 1:
The patent segments the system into two separate components: a stable pH-responsive dye that can be stored independently, and the disinfectant solution. The dye is applied to surfaces or materials beforehand, allowing long-term storage of the visualizing agent without premature reaction, while maintaining readiness for use when the disinfectant is applied
Solution Approach 2:
The patent performs preliminary action by pre-applying or pre-dispersing the pH-responsive dye onto surfaces, materials, or into the environment before disinfectant application. This allows the visualizing agent to be ready in advance without requiring mixing of reactive substances, enabling long-term storage stability while ensuring immediate visualization capability when needed
3Loss of information
If handwriting or computer input is used to record application status, then recording is achieved, but it is time-consuming and may be recorded incorrectly
Solution Approach 1:
The patent enables the system to automatically record and communicate application status through the visual color change itself. The colored regions serve as self-recording indicators that can be captured by imaging devices, eliminating the need for manual handwriting or computer input and reducing both time consumption and potential for human error
Solution Approach 2:
The patent implements feedback by using the visual color change as immediate confirmation of disinfectant application. This visual feedback can be automatically detected and recorded by imaging systems, creating a closed-loop system that provides real-time verification of application status without requiring manual intervention for recording
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 convenient visual confirmation of disinfectant application, reduces storage challenges, and facilitates efficient management of multiple sterilization targets without the need for special tools or long-term mixing.
Implementation Method 1
a visualizing agent that changes in color state when a disinfectant is applied
Implementation Method 2
a dispersant that disperses the visualizing agent in the aqueous liquid
Data Source
AI summary
A disinfectant visualizing ink includes a visualizing agent that changes in color state when a disinfectant is applied and is hardly soluble in an aqueous liquid, a dispersant that disperses the visualizing agent in the aqueous liquid, and the aqueous liquid.