Pro-Perfume Textile Dryer Sheets for Prolonged Fragrance Under Heat
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Solution Overview
Problem
Existing dryer sheets struggle to provide a long-lasting and intense fragrance impression during tumble-drying due to the instability of perfume compounds under high temperatures and mechanical agitation, and encapsulation methods are laborious and costly.
Innovation Solution
A textile article containing a pro-perfume compound that releases perfume compounds upon exposure to external influences such as light, air, heat, or moisture, ensuring prolonged fragrance perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If perfume compounds are used directly in dryer sheets, then the fragrance intensity is high initially, but the fragrance perception is short-lived due to degradation under tumble-drying conditions
Solution Approach 1:
The patent applies preliminary action by incorporating pro-perfume compounds into the dryer sheet before use. These pro-perfume compounds are precursors that will transform into active perfume compounds during the tumble-drying process, ensuring fragrance is released at the optimal moment rather than degrading beforehand.
Solution Approach 2:
The patent utilizes parameter changes by transforming pro-perfume compounds into active perfume compounds through changes in physical or chemical parameters during tumble-drying (heat, moisture, mechanical action). This transformation activates the fragrance only when needed, extending its effective duration.
2Reliability
If encapsulation methods are used to protect perfume compounds, then the fragrance stability under heat is improved, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The patent extracts the protective function from complex encapsulation structures and implements it through simpler pro-perfume compound chemistry. Instead of physically enclosing perfume molecules in capsules, the solution uses chemically stable precursor molecules that naturally resist degradation under tumble-drying conditions.
Solution Approach 2:
The patent employs inexpensive pro-perfume compounds that can be directly incorporated into dryer sheets without complex encapsulation. These compounds provide adequate stability for the application while being cost-effective and simple to manufacture, replacing expensive encapsulation technologies.
3Productivity
If high temperatures are applied during tumble-drying, then the drying efficiency is improved, but the perfume compound stability deteriorates
Solution Approach 1:
The patent converts the harmful effect of high temperature on perfume stability into a beneficial activation mechanism. The heat from tumble-drying, which would normally degrade perfume compounds, instead triggers the transformation of pro-perfume compounds into active fragrance molecules, ensuring both efficient drying and sustained fragrance.
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 pro-perfume compound effectively prolongs the fragrance perception of garments during and after tumble-drying by releasing perfume compounds in response to environmental triggers, providing a sustained pleasant odor.
Implementation Method 1
the pro-perfume compound is susceptible of releasing one or more perfume compounds upon exposure to external influences such as light, air, heat or moisture
Implementation Method 2
the pro-perfume compound is susceptible of releasing one or more perfume compounds upon exposure to external influences such as light, air, heat or moisture
Data Source
AI summary
The present invention relates to a textile article comprising a pro-perfume compound that can be used for tumble drying. The present invention further relates to a method for the preparation of the textile article, and the use of the textile article for improving, enhancing, conferring and/or modifying the fragrance impression and/or fragrance intensity of a garment during tumble-drying.