Light-Activated Stain Removal System for Fast Bleaching Without Heat
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Solution Overview
Problem
Current stain removal methods using oxidizing agents like hydrogen peroxide in laundry products are inefficient, requiring long treatment times and posing risks if high temperatures are applied without removing stained clothes, as the low H2O2 concentration in commercial products limits bleaching effectiveness.
Innovation Solution
A stain removal system that uses a light source to accelerate the bleaching reaction by activating hydrogen peroxide, allowing for faster stain removal without the need for high temperatures, integrated with a portable and compact design that includes a removable bleach cartridge and a light source for convenient use on clothing while worn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If high temperature is used to accelerate the bleaching reaction, then the treatment time is significantly reduced, but the risk of user's skin being injured increases
Solution Approach 1:
The patent replaces thermal energy (heat) with optical energy (light) to activate the bleaching reaction. Instead of using high temperature to accelerate the reaction between hydrogen peroxide and the stain, the system uses light sources (such as UV LEDs or lasers) to provide the activation energy needed for the bleaching process, thereby achieving fast stain removal without the harmful effects of high temperature on skin.
2Reliability
If low concentration of H2O2 is used in commercial stain removing products, then the product is safer for use, but the bleaching reaction is not very effective and requires longer treatment time
Solution Approach 1:
The patent changes the activation method of hydrogen peroxide from thermal activation to optical activation. By using light sources with specific wavelengths (such as UV light or blue light), the system activates hydrogen peroxide at low concentrations to produce highly reactive hydroxyl radicals that dramatically accelerate the bleaching reaction. This allows the use of safe, low-concentration hydrogen peroxide while achieving rapid and effective stain removal.
3Ease of operation
If portable and compact stain removal system is designed, then the convenience for user to handle and bring along is improved, but the device complexity increases
Solution Approach 1:
The patent divides the stain removal system into separate functional modules: a removable cartridge containing the hydrogen peroxide solution, a light source module (such as LED array or laser diode), and a control unit. This segmentation allows each component to be optimized independently and facilitates portable design. The cartridge can be easily replaced, and the light source can be integrated into a handheld device, achieving both portability and functional effectiveness.
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 system effectively reduces stain removal time and ensures user safety by using light-activated hydrogen peroxide, providing a portable and efficient solution for stain removal without the risks associated with high temperatures.
Implementation Method 1
Light acceleration is a good substitution of heat. A stain removal system with light source integration allows fast stain removing
Implementation Method 2
The colored molecule is then oxidized by an oxidization agent or bleach, resulting in an intermediate product P2
Data Source
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AI summary
Stain removal system (101) for treating a stained area (102) on a cloth (103), said stain removal system (101) comprises a container (104) for containing a bleach chemical, wherein the container (104) is a removable cartridge, a system (105) for carrying the bleach chemical to the stained area under a liquid form, and a light source (106) for generating light radiation (107) over the stained area (102).