Clothes Dryer Cycle Control for Dye Transfer Prevention
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Solution Overview
Problem
In residential laundry settings, dyed fabric items often experience excess or loose dye that can transfer during washing, leading to unwanted color bleeding and damage, as consumers lack control over fabric types and dye treatments, making it challenging to prevent dye transfer in mixed or unsorted loads.
Innovation Solution
A method and composition for inhibiting dye transfer in laundry cycles using a clothes dryer with a controller that detects dye transfer events and implements specific cycles, employing dye fixatives and absorbers to minimize dye partitioning and redistribution, allowing for the safe washing of unsorted loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If laundry items are sorted into loads of like color, then dye transfer is reduced, but user time and efficiency are reduced
Solution Approach 1:
The washing machine automatically detects dye transfer events and selects appropriate wash cycles without user intervention. The system performs self-diagnosis and self-correction by monitoring dye transfer indicators and autonomously adjusting washing parameters, eliminating the need for manual sorting while maintaining dye transfer prevention.
Solution Approach 2:
The system uses sensors to detect dye transfer events during washing and feeds this information back to the controller. Based on the detected dye transfer level, the controller automatically adjusts washing parameters or selects appropriate cycles, creating a closed-loop control system that prevents dye transfer without requiring user sorting input.
2Object-affected harmful factors
If laundry items are washed separately to prevent dye transfer, then dye transfer is reduced, but productivity is reduced
Solution Approach 1:
The washing machine implements a universal dye transfer prevention mechanism that works across all wash cycles and fabric types. The system can handle mixed-color loads universally by detecting dye transfer events and automatically applying appropriate treatment, eliminating the need for separate washing cycles for different colors while maintaining high productivity.
Solution Approach 2:
The system automatically monitors and prevents dye transfer in real-time during washing, enabling mixed loads to be processed together without requiring pre-sorting or separate cycles. This self-managing capability maintains high laundry processing efficiency while preventing dye transfer between different colored items.
3Object-affected harmful factors
If dye fixatives and absorbers are used, then dye transfer is reduced, but device complexity is increased
Solution Approach 1:
The system pre-loads multiple dye transfer prevention cycles into the controller memory before operation. These pre-programmed cycles include specific parameters for different dye transfer scenarios, allowing the controller to quickly select and execute the appropriate cycle without complex real-time calculations, thereby managing device complexity while maintaining effective dye transfer prevention.
Solution Approach 2:
The controller manages complexity by changing key washing parameters (temperature, agitation, cycle duration) based on detected dye transfer events rather than adding complex hardware components. The system adjusts existing operational parameters dynamically to prevent dye transfer, utilizing software-based parameter modification instead of hardware complexity increases.
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 effectively reduces dye transfer between fabric items and surfaces, enabling the laundering of mixed loads with minimal color bleeding, thus protecting clothing and reducing the risk of damage from dye transfer.
Implementation Method 1
employing dye fixatives and absorbers to minimize dye partitioning and redistribution
Data Source
AI summary
A clothes dryer for drying fabric items in accordance with a treating cycle of operation, includes a treating chamber receiving fabric items for treatment and a controller having a memory in which is stored a set of executable instructions comprising at least one user-selectable cycle of operation, the controller may receive an indication of a dye transfer event and implement a cycle of operation based thereon.