Builder-Containing Laundry Scent Particles for Salt Residue Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing particulate laundry scent additives face issues with structural integrity due to excess water, leading to weakened particles and deposition of low solubility salts on laundry and washing machines, which results in unsightly residues.
Innovation Solution
A composition comprising a builder and fragrance particles with specific weight percentages of dispersants, solubility agents, and perfume, managed by controlling water with anhydrous salts and salt hydrates to maintain structural integrity and prevent salt deposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If water is used to carry perfume in particulate laundry scent additives, then the perfume can be delivered through the wash, but the water weakens the structural integrity of the particle
Solution Approach 1:
The patent changes the physical state of water from free liquid to bound water through the use of anhydrous salts that hydrate during the wash cycle. This parameter change allows water to be present in the particle without compromising structural integrity, as the bound water does not weaken the particle structure like free water would.
Solution Approach 2:
Anhydrous salts act as intermediaries between the perfume-containing particle structure and the water in the wash. The salts bind the water through hydration, preventing the water from directly weakening the particle structure while still allowing the particle to dissolve and release perfume during the wash cycle.
2Strength
If anhydrous salt is added to bind water and improve structural integrity, then particle strength is improved, but low solubility salts may deposit on laundry and washing machine
Solution Approach 1:
The patent carefully selects and controls the type and amount of anhydrous salt used, choosing salts that hydrate to form soluble or readily dissolvable compounds. By changing the parameters of salt selection and concentration, the system achieves water binding for structural support while preventing the formation of persistent low solubility salt deposits on laundry and washing machine surfaces.
Solution Approach 2:
The anhydrous salt is strategically placed within the particle structure at specific locations and concentrations to provide local water binding capacity exactly where needed for structural support, while the overall composition is balanced to ensure complete dissolution during washing, preventing harmful deposits.
3Quantity of substance
If high perfume content is provided in particulate laundry scent additive, then scent effectiveness is improved, but water abundance weakens particle structure
Solution Approach 1:
The patent changes the state of water from free to bound through anhydrous salt hydration, allowing high perfume content to be incorporated into the particle without the structural weakening effect that free water would cause. The bound water provides a matrix for perfume distribution while maintaining particle strength.
Solution Approach 2:
The particle is formulated as a composite material system comprising dispersant, anhydrous salt, perfume, and water. This composite structure allows the components to work together synergistically, where the anhydrous salt-bound water matrix supports high perfume loading while maintaining structural integrity through the combined properties of all components.
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 enhances the structural stability of fragrance particles, reducing unsightly residue on laundry and washing machines while allowing high perfume content, ensuring efficient dissolution and effective scent distribution.
Implementation Method 1
adding a quantity of anhydrous salt to the melt to bind at least some of the water, thereby improving the structural integrity of the particle
Implementation Method 2
the fragrance particles dissolve or disperse in the wash to release the perfume
Implementation Method 3
a common process for manufacturing such particulate laundry scent additives includes using water to carry the perfume as a perfume in water emulsion
Data Source
AI summary
A composition including: about 1% to about 10% by weight of the composition a builder; and a plurality of fragrance particles, wherein the fragrance particles include: about 25% to about 80% by weight of the composition a first dispersant that is solid at 20 degrees Celsius; about 9% to about 25% by weight of the composition a first solubility agent; about 9% to about 30% by weight of the composition a second solubility agent; about 1% to about 20% by weight of the composition perfume.