Laundry Scenting Composition Using Crosslinked Cellulose Ether
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Solution Overview
Problem
There is a need for new laundry scenting additives that can reduce the cost of conventional compositions by substituting some of the solid carrier with water while maintaining structural and scent delivery properties.
Innovation Solution
A laundry scenting composition comprising 5 to 40 wt% water, 35 to 93.95 wt% solid carrier, 0.05 to 5 wt% crosslinked cellulose ether with 0.1 to 0.6 wt% polyether groups, and 1 to 25 wt% scent additive, which is a solid and uses an irreversibly crosslinked cellulose ether.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water is substituted for some of the solid carrier in the scenting additive, then the cost of conventional laundry scenting compositions is reduced, but the structural integrity and scent delivery properties may be compromised
Solution Approach 1:
The patent applies parameter changes by carefully controlling the ratio of water to solid carrier (5-40 wt% water, 35-93.95 wt% solid carrier) and the crosslinking degree of cellulose ether (0.1-0.6 wt% polyether groups) to optimize both cost reduction and structural integrity. This quantitative parameter optimization allows water substitution while maintaining functional properties.
Solution Approach 2:
The invention uses composite materials by combining water, solid carrier, crosslinked cellulose ether, and scent additive in a specific formulation. The crosslinked cellulose ether acts as a binding agent that creates a composite structure capable of maintaining structural integrity despite the presence of water, which would otherwise compromise the solid form.
2Reliability
If the amount of crosslinked cellulose ether is increased to maintain structural integrity, then the scent delivery properties are improved, but the manufacturing cost increases
Solution Approach 1:
The patent optimizes the parameter of crosslinked cellulose ether content to a specific range (0.05-5 wt%, with 0.1-0.6 wt% polyether groups) that provides sufficient structural integrity without excessive cost. This parameter optimization finds the minimum effective concentration that achieves the desired functional performance.
Solution Approach 2:
The invention uses cost-effective materials such as common solid carriers (paraffin, microcrystalline wax, beeswax, candlewax) combined with relatively inexpensive crosslinked cellulose ether, replacing more expensive alternatives while maintaining performance. The formulation prioritizes cost-effective material selection.
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 maintains Shore A hardness and improves perfume delivery to laundry, allowing for cost-effective scent delivery independent of other laundry products.
Implementation Method 1
a crosslinked cellulose ether containing 0.1 to 0.6 wt %, based on weight of the crosslinked cellulose ether, of polyether groups
Data Source
AI summary
A laundry scenting composition is provided, including water; a solid carrier; a crosslinked cellulose ether containing 0.1 to 0.6 wt %, based on weight of the crosslinked cellulose ether, of polyether groups; and a scent additive; wherein the laundry scenting composition is a solid.