Compositions and Methods for Reducing Pet Hair Adhesion to Fabric
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Solution Overview
Problem
Current fabric care compositions fail to effectively prevent the adhesion of pet hair to fabrics, relying on high-temperature processes or post-washing treatments that do not provide a persistent repellent effect.
Innovation Solution
A liquid fabric care composition containing cationic surfactants and polymers, such as dialkylester triethanol ammonium methyl sulfate and a copolymer of acrylamide and diallyldimethylammonium chloride, is applied during the washing cycle to reduce pet hair adhesion by modifying the fabric's surface potential, thereby reducing electrostatic forces between the fabric and pet hair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-temperature processes are used to apply fabric care compositions during the drying process, then the fabric care composition can be effectively applied to the fabric, but the process becomes energy-intensive and less suitable for integrating anti-adhesion components
Solution Approach 1:
The patent applies fabric care composition during the washing cycle before the drying process, rather than during drying. This preliminary application allows the composition to be deposited on fabric while it is still wet and more receptive, eliminating the need for high-temperature application and reducing energy consumption while maintaining effectiveness
Solution Approach 2:
The patent replaces thermal application mechanisms (high-temperature drying process) with a chemical application mechanism (aqueous solution deposition during washing). This substitution allows anti-adhesion components to be effectively applied without requiring high temperatures, thereby reducing energy consumption
2Reliability
If fabric care compositions are applied by melting actives on fabric during drying, then the composition adheres to fabric, but the process cannot effectively incorporate anti-adhesion components that require lower temperatures
Solution Approach 1:
The fabric care composition is applied to fabric during the washing cycle when fabric is wet and more receptive, rather than during the drying cycle. This preliminary application allows anti-adhesion components to be incorporated into the composition without requiring high-temperature melting, thereby maintaining both adhesion and component compatibility
Solution Approach 2:
The patent changes the application temperature parameter from high temperature (drying cycle melting process) to low temperature (washing cycle aqueous solution). This parameter change enables the incorporation of anti-adhesion components that would be damaged or ineffective at high temperatures while still achieving sufficient adhesion to fabric
3Ease of operation
If spray application methods are used to apply fabric care compositions, then the composition can be applied to fabric, but the application process becomes complex and less integrated into the laundry process
Solution Approach 1:
The patent merges the fabric care composition application step with the existing washing cycle, so that the composition is applied in the same process where fabric is already being treated with detergent. This integration eliminates the need for separate spray application equipment and steps, simplifying the overall process while maintaining effective application
Solution Approach 2:
The washing machine's existing water delivery and distribution system is used to apply the fabric care composition, rather than requiring a separate spray application system. This multi-functional use of existing equipment simplifies the process by combining composition application with the standard washing operation
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 significantly reduces pet hair adhesion and facilitates easier removal, outperforming existing methods by providing a persistent repellent effect that lasts throughout daily use.
Implementation Method 1
The interaction between pet hair and the fabric can be manifold. A fairly large proportion of it, however, turned out to be based on electrostatic charge and the resulting attractive forces between the fabric and the hair that are distinguished by opposite electric surface potentials.
Implementation Method 2
adding cationic surfactants and polymers to the washing process led to a substantial and persistent reduction of pet hair adherence. It is important to mention that this technology allows the application of the surface potential modifying substances from an aqueous solution
Data Source
AI summary
Described herein are fabric care compositions that reduce or prevent the adhesion of pet hair to fabric. Methods of making and using these compositions for reducing or preventing the adhesion of pet hair to fabric, are also described.