Solid fragrance-containing composition
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Solution Overview
Problem
Existing detergents and cleaning agents using polyethylene glycol (PEG) as water-soluble carriers often exhibit delayed solubility, leading to residues on laundry or in washing machines, especially under short wash cycles or low temperatures.
Innovation Solution
A solid, particulate composition comprising a water-soluble carrier material, such as sodium acetate trihydrate, which dissolves in its own crystal water at specific temperatures, improving solubility and incorporating fragrances and rheology modifiers for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If polyethylene glycol (PEG) is used as water-soluble carrier material, then the composition can be processed and shaped easily, but the solubility is delayed leading to residues on laundry or in washing machines
Solution Approach 1:
The patent changes the chemical parameter of the carrier material from PEG to a hydrated salt with specific solubility characteristics. The hydrated salt is selected to have a water vapor partial pressure at a specific temperature in the range of 30 to 100°C that corresponds to the H2O partial pressure of the saturated solution, ensuring complete dissolution without residues while maintaining processability.
Solution Approach 2:
The invention uses a carrier material (hydrated salt) that is designed to completely dissolve and disappear during the wash cycle, leaving no persistent residues. This approach ensures the carrier serves its purpose temporarily and then vanishes completely, unlike PEG which leaves behind residues.
2Stability of the object's composition
If PEG-based compositions are used, then the composition maintains structural integrity, but residues form on laundry especially during short wash cycles or low temperatures
Solution Approach 1:
The patent selects hydrated salts with specific solubility parameters that ensure complete dissolution under various washing conditions. The key parameter is the water vapor partial pressure matching the H2O partial pressure of the saturated solution at temperatures between 30-100°C, which guarantees no residue formation while maintaining composition stability during storage and handling.
3Reliability
If the carrier material dissolves quickly in water, then solubility is improved, but the composition may lose structural integrity before use
Solution Approach 1:
The invention uses hydrated salts whose dissolution behavior is controlled by matching the water vapor partial pressure to the H2O partial pressure of the saturated solution at specific temperatures (30-100°C). This parameter selection ensures the carrier remains stable and intact during storage and handling, then dissolves completely and rapidly during the wash cycle when exposed to water.
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 composition ensures improved water solubility and reduced residue formation, providing effective fragrance release and improved handling characteristics compared to PEG-based systems.
Implementation Method 1
the salt dissolves in its own water of crystallization at this temperature, a process which can be phenomenologically described as melting, but which thermodynamically is a dissolution process
Implementation Method 2
the salt melts in its own water of crystallization at this temperature
Implementation Method 3
whose water vapor partial pressure at a specific temperature in the range of 30 to 100°C corresponds to the H2O partial pressure of the saturated solution of this salt
Data Source
AI summary
The present invention relates to a solid, particulate composition comprising at least one water-soluble carrier material and at least one fragrance, wherein the carrier material is a water-containing salt (hydrate) whose water vapour partial pressure at a specific temperature in the range from 30 to 100°C corresponds to the H2O partial pressure of the saturated solution of this salt, such that the salt melts at this temperature in its own crystal water. The composition is characterized in that it has a distinctly improved water solubility compared to known polyethylene glycol-based compositions. The invention further relates to methods for producing the solid composition, and to a washing or cleaning product comprising the solid composition. In addition, the present invention also relates to the use of a washing or cleaning product of this kind for cleaning textiles or hard surfaces, and corresponding methods for cleaning textiles or hard surfaces using a washing or cleaning product of this kind.