Oxidized Starch Ware Washing Composition for 2-in-1 Cleaning and Rinseability
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Solution Overview
Problem
Conventional ware washing systems require separate detergent and rinse aid compositions, which are space-consuming and costly, and often necessitate additional water heating, posing safety hazards in limited kitchen spaces, while phosphate-free compositions face challenges in soil peptization and lime scale deposition.
Innovation Solution
An alkaline ware washing composition incorporating oxidized starch, an alkalinity source, a builder, and a nonionic surfactant provides cleaning, sheeting, and drying in a single 2-in-1 formulation, eliminating the need for a separate rinse aid step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate detergent and rinse aid compositions are used, then cleaning and rinse aid functions are achieved, but space requirements and costs increase
Solution Approach 1:
The patent combines detergent and rinse aid functions into a single dual-purpose composition. The oxidized starch serves as a rinse aid agent within the detergent formulation, eliminating the need for separate rinse aid dispensers and reducing space requirements in the washing system.
Solution Approach 2:
The oxidized starch component provides multi-functionality by acting as both a detergent builder and a rinse aid agent. This single ingredient performs multiple functions: water softening, soil suspension, and rinse aid properties (reducing surface tension, preventing film formation), thereby eliminating the need for separate specialized products.
2Reliability
If separate detergent and rinse aid compositions are used, then cleaning and rinse aid functions are achieved, but formulation and operational costs increase
Solution Approach 1:
The patent merges detergent and rinse aid into one formulation, eliminating the need to purchase, store, and dispense two separate expensive chemical products. The oxidized starch provides rinse aid functionality at lower cost compared to traditional rinse aid formulations.
Solution Approach 2:
The oxidized starch serves multiple functions simultaneously (detergent builder and rinse aid), replacing the need for multiple specialized ingredients. This multi-functionality reduces the overall formulation cost by eliminating redundant components and simplifying the chemical inventory required.
3Reliability
If alkaline detergent is used, then effective soil removal is achieved, but film formation on substrate surfaces occurs
Solution Approach 1:
The oxidized starch acts as an intermediary substance that modifies the interaction between the alkaline detergent and the substrate surface. It reduces surface tension and prevents direct film-forming interactions between the alkaline detergent and the substrate, thereby eliminating harmful film formation while preserving soil removal efficacy.
Solution Approach 2:
The oxidized starch changes the physical-chemical parameters of the detergent solution, specifically reducing surface tension and modifying wetting properties. These parameter changes prevent film formation on substrate surfaces while maintaining the alkaline detergent's soil removal capabilities.
4Object-affected harmful factors
If phosphate-free composition is used, then environmental impact is reduced, but soil peptization and lime scale deposition performance deteriorates
Solution Approach 1:
The oxidized starch changes the functional properties of the phosphate-free formulation by providing cation exchange capacity and suspension properties that replace phosphate functions. It effectively peptizes soils and prevents lime scale deposition through its unique molecular structure and interaction with metal ions, achieving phosphate-free performance.
Solution Approach 2:
The patent uses oxidized starch as a composite functional ingredient that combines multiple properties (cation exchange, suspension, dispersion, and rinse aid) in one material. This composite approach replaces the multiple functions previously provided by phosphates, maintaining performance while reducing environmental impact.
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 achieves effective cleaning and rinseability comparable to separate detergent and rinse aid systems, reducing space requirements and costs, and utilizing biodegradable, renewable materials.
Implementation Method 1
an alkaline ware washing composition incorporating oxidized starch, an alkalinity source, a builder, and a nonionic surfactant provides cleaning, sheeting, and drying in a single 2-in-1 formulation
Implementation Method 2
utilizing biodegradable, renewable materials
Data Source
AI summary
Consumer and industrial 2-in-1 alkaline ware washing compositions providing both detergency and rinseability in a single cleaning composition are disclosed. Further benefits can be achieved with low levels of rinse aid surfactants in a rinse additive following the alkaline ware washing composition, including levels of rinse additive surfactant of about 500 ppm surfactant or less. Alkaline ware washing compositions and methods of using the same provide user-friendly, solid, ware washing compositions without the need for using a separate rinse aid composition.