Cleaning product comprising an inverted container assembly and a viscous cleaning composition
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Solution Overview
Problem
Inverted containers used for liquid hand dishwashing cleaning products face challenges with leakage and stringing issues due to transient liquid pressure increases and high viscosity of the cleaning compositions, which existing solutions have not fully addressed, leading to inefficiencies in dosing and storage.
Innovation Solution
A cleaning product with an inverted container assembly and a surfactant system comprising an anionic surfactant and a primary co-surfactant in a specific ratio (8:1 to 1:1) is developed, which reduces leakage and stringing by lowering shear viscosity and improving the composition's elasticity, allowing for easier dosing and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closing cap is incorporated into the inverted container, then leakage prevention is improved, but dosing operation complexity increases and single-handed operation becomes difficult
Solution Approach 1:
The liquid composition itself provides the leakage prevention function through its viscoelastic properties, eliminating the need for a separate closing cap mechanism. The composition's ability to form elastic plugs and resist hydraulic hammer pressure enables it to self-regulate leakage without requiring additional operational steps by the consumer.
Solution Approach 2:
The invention changes the rheological parameters of the liquid composition by incorporating viscoelastic agents and optimizing surfactant systems, transforming it from a simple Newtonian fluid to a non-Newtonian viscoelastic fluid that can dynamically respond to pressure changes and prevent leakage while maintaining ease of dosing.
2Reliability
If the liquid composition has high viscosity, then leakage resistance is improved, but dosing difficulty and stringing increase
Solution Approach 1:
The liquid composition exhibits dynamic rheological behavior where its viscosity and elasticity change in response to applied stress. At rest, the high viscosity and elasticity prevent leakage, but during dosing when force is applied, the composition becomes more fluid and easier to dispense, eliminating stringing and dosing difficulty.
Solution Approach 2:
The invention optimizes the rheological parameters of the liquid composition by controlling viscosity, elasticity, and yield stress through specific ingredient selections and ratios, creating a composition that maintains high resistance to leakage at rest but flows easily during active dosing.
3Reliability
If the inverted container is made rugged for impact resistance, then leakage upon impact is reduced, but manufacturing complexity increases
Solution Approach 1:
The invention converts the harmful hydraulic hammer pressure generated during impact into a beneficial testing mechanism. The viscoelastic liquid composition's ability to form elastic plugs and resist pressure surges transforms the impact shock into a demonstration of the composition's protective capabilities, eliminating the need for complex container designs.
Solution Approach 2:
The invention changes the physical parameters of the liquid composition to enhance its shock-absorbing and pressure-resisting properties, allowing standard containers to achieve improved impact resistance through formulation rather than structural modifications.
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 effectively prevents leakage during impact and stringing after dosing, enabling more rugged handling of the container and minimizing waste, while also facilitating faster and more comfortable dosing with reduced viscosity for improved ergonomics.
Implementation Method 1
The cleaning composition comprises from 1% to 60% by weight of the total composition of a surfactant comprising: i) an anionic surfactant, preferably the anionic surfactant is selected from the group consisting of alkyl sulfate, alkyl alkoxy sulfate and mixtures thereof; and ii) a primary co-surfactant system
Implementation Method 2
improve the composition's elasticity, allowing for easier dosing and storage... effectively prevents leakage during impact
Implementation Method 3
Inverted containers are containers that include an opening at the 'bottom' for dispensing the liquid detergent contained inside
Data Source
AI summary
The invention relates to a cleaning product including an inverted container assembly comprising an inverted container and a liquid dispenser attached to a bottom surface of the inverted container, and a viscous cleaning composition contained in the inverted container assembly. The present invention also relates to the use of the cleaning product for cleaning dishware.