Cationic Polymer-Coated Liposomes for Wash-Durable Textile Treatment
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Solution Overview
Problem
Existing cosmetic and dermopharmaceutical agents linked to textile materials have limited permanence due to separation after a few washes, as current delivery systems are not stable enough to remain attached to the fabric.
Innovation Solution
Liposomes coated with cationic polymers form a network on the surface of textile materials, enhancing their stability and attachment, allowing for prolonged retention of cosmetic and dermopharmaceutical agents through mechanical, thermal, or osmotic release mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If standard delivery systems are used to link cosmetic and dermopharmaceutical agents to textile materials, then the agents can be delivered to skin and hair, but the delivery systems separate from the textile material after a few washes, resulting in limited permanence
Solution Approach 1:
The patent uses a composite structure consisting of liposomes coated with cationic polymers. The cationic polymer layer forms a network on the textile fiber surface through electrostatic interactions with anionic sites, creating a stable composite material that resists separation during washing. This composite approach combines the benefits of liposomal encapsulation with the anchoring capability of cationic polymers, achieving both sustained release and long-term permanence on textile materials.
2Duration of action of stationary object
If liposomes are coated with cationic polymers to form a network on textile surfaces, then stability and attachment are enhanced for prolonged retention, but the complexity of the delivery system increases
Solution Approach 1:
The delivery system is segmented into distinct functional components: the liposomal core for encapsulating and releasing cosmetic and dermopharmaceutical agents, and the cationic polymer coating for anchoring to textile fibers. This segmentation allows each component to perform its specific function optimally while maintaining overall system manageability. The modular structure simplifies the understanding and application of the complex system by dividing it into manageable functional units.
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 cationic polymer network ensures that cosmetic and dermopharmaceutical agents remain attached to textile materials after multiple washes, providing sustained release and improved penetration into skin and hair, enhancing their effectiveness and longevity.
Implementation Method 1
The cationic polymers on the surface of the liposomes allow their effective linking to the fibers of the textile material
Implementation Method 2
Another possibility consists of the liposome wall becoming semi-permeable in its properties through its modification such as from pressure, friction or heat
Implementation Method 3
Another possibility consists of the liposome wall becoming semi-permeable in its properties through its modification such as from pressure, friction or heat
Implementation Method 4
Another possibility consists of the liposome wall becoming semi-permeable in its properties through its modification such as from pressure, friction or heat
Implementation Method 5
certain cationic polymers bound to liposomes link to the surface of the textile material on several points forming a net or mesh-like structure
Data Source
AI summary
Liposomes with cosmetic and/or dermopharmaceutical ingredients for the care of the skin, scalp and/or hair and their use in washing agents and/or sprays for the treatment of textile materials.