UV-C Sanitizing Device with Photopolymerizable Coating
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Solution Overview
Problem
Current UV disinfection methods provide only temporary sanitization, leaving surfaces vulnerable to bacterial re-growth and transmission of infectious diseases, and existing disinfectants can be harmful to humans and the environment.
Innovation Solution
A device combining UV-C light disinfection with a thin, UV-curable antimicrobial coating that is applied uniformly to surfaces using a 3D traversing system, ensuring long-lasting protection against microbial growth and providing additional protection from scratches, dust, and weather.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UV light is used for disinfection, then the germicidal effect is achieved, but repeated application is required throughout the day to maintain sanitization
Solution Approach 1:
The patent combines UV-C irradiation with a photopolymerizable coating containing antimicrobial agents. The coating is cured by UV light to form a durable protective layer that provides long-term sanitization and prevents bacterial regrowth, eliminating the need for repeated UV applications. This composite approach merges the immediate germicidal effect of UV with the sustained protection of the cured coating.
2Reliability
If chemical disinfectants are used, then disinfection is achieved, but toxic effects on humans and environment occur
Solution Approach 1:
The patent replaces chemical disinfectants with a physical-chemical hybrid system using UV-C irradiation and photopolymerization. The UV-C light initiates polymerization of the coating and simultaneously provides germicidal action, while the cured coating delivers sustained disinfection without the toxic effects of traditional chemical disinfectants like chlorine or sodium hydroxide.
3Duration of action of stationary object
If a uniform antimicrobial coating is applied, then long-term protection is achieved, but precise control of coating thickness is required
Solution Approach 1:
The patent incorporates sensors that detect the presence and characteristics of the object, with the control system adjusting spray parameters and UV irradiation conditions in real-time. This feedback mechanism ensures uniform coating thickness across complex geometries by dynamically adapting the application process to the specific object being coated.
Solution Approach 2:
The system uses dynamic control of the spray application and UV irradiation processes, with the ability to adjust parameters during operation. The traverse mechanism and spray system can adapt their motion and output in real-time to accommodate varying object geometries, ensuring consistent coating quality.
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 solution provides a long-term sanitizing effect, reducing the frequency of UV application and minimizing bacterial re-growth, while being environmentally friendly and non-toxic, thus effectively reducing the risk of pathogenic transmission.
Implementation Method 1
UV light is separated into 3 distinct categories: UV-A (315-400 nm), UV-B (280-315 nm), and UV-C (200-280 nm). Since DNA optimally absorbs UV light at 253.7 nm, it is UV-C lamps that are used in most prior art germicidal devices. It has been well known that ultraviolet (UV) light has germicidal properties by damaging the genetic material of the microorganisms.
Implementation Method 2
The device comprises a chamber containing UV-C lamps and a mechanism to facilitate spray coating application, and an antimicrobial liquid coating that is UV curable.
Data Source
AI summary
The present invention is a sanitizing and disinfecting device that provides a long-term sanitizing solution. The device provides a UV-C light for disinfecting objects and provides a thin antimicrobial coating which has UV curable properties to create a long-lasting sanitizing effect. The device comprises a chamber containing UV-C lamps and necessary parts to facilitate spray coating application. A self-elevating system positions the object in an appropriate height for a proper spraying.