High-Alkaline Warewash Detergent for Phosphate-Free Scale Control
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Solution Overview
Problem
Existing detergents struggle to effectively prevent scale formation and soil redeposition on hard surfaces without using phosphorus-containing compounds, leading to undesirable aesthetic and tactile issues, while maintaining effective detergency.
Innovation Solution
A detergent composition comprising a polymer system of polycarboxylic acid polymers, copolymers, or terpolymers, an alkalinity source, and a nonionic surfactant, which operates at high alkalinity to inhibit scale formation and improve soil dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phosphorus-containing compounds are used to prevent scale formation and improve soil dispersion, then scale control and soil dispersion are improved, but environmental harm increases
Solution Approach 1:
The patent removes phosphorus-containing compounds from the detergent formulation and replaces them with alternative water conditioning agents such as polycarboxylates, polyacrylates, and other phosphate-free scale inhibitors. This extraction of the harmful substance while maintaining the desired scale prevention and soil dispersion functions directly resolves the contradiction between effective scale control and environmental harm.
2Reliability
If phosphorus-containing compounds are used to prevent scale formation and improve soil dispersion, then scale control and soil dispersion are improved, but the detergent formulation complexity increases
Solution Approach 1:
The patent employs multifunctional polymer additives that simultaneously provide scale inhibition, soil dispersion, and water softening properties without phosphorus. These universal additives replace multiple separate functions previously requiring phosphorus compounds, thereby maintaining soil dispersion effectiveness while reducing formulation complexity and eliminating environmental harm.
3Object-affected harmful factors
If non-phosphate replacement formulations are used to reduce environmental harm, then environmental harm is reduced, but soil accumulation on hard surfaces increases
Solution Approach 1:
The patent utilizes composite detergent formulations combining multiple phosphate-free water conditioning agents including polycarboxylates, polyacrylates, and other polymer additives. These composite materials work synergistically to prevent soil accumulation on hard surfaces while maintaining environmental compatibility, thereby resolving the contradiction between reduced environmental harm and prevention of soil redeposition.
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 effectively reduces scale formation and improves soil dispersion on hard surfaces, maintaining cleaning performance without phosphorus, thus addressing the limitations of existing detergents.
Implementation Method 1
the use of phosphorous raw materials in detergents has become undesirable for a variety of reasons, including environmental reasons. This has resulted in heavy regulation of phosphorus emissions. Thus, industries are seeking alternative ways to control hard water scale formation associated with highly alkaline detergents.
Implementation Method 2
If calcium carbonate is allowed to precipitate, the crystals may attach to the surface being cleaned and cause undesirable effects.
Implementation Method 3
the ability of sodium tripolyphosphate to disperse and suspend soils facilitates the detergency of the solution by preventing the soils from redepositing into the wash solution or wash water
Implementation Method 4
A detergent composition comprising a polymer system of polycarboxylic acid polymers, copolymers, or terpolymers, an alkalinity source, and a nonionic surfactant, which operates at high alkalinity to inhibit scale formation and improve soil dispersion.
Implementation Method 5
A detergent composition comprising a polymer system of polycarboxylic acid polymers, copolymers, or terpolymers, an alkalinity source, and a nonionic surfactant
Implementation Method 6
a nonionic surfactant, which operates at high alkalinity to inhibit scale formation and improve soil dispersion
Implementation Method 7
Detergent formulations employing alkali metal carbonates and/or alkali metal hydroxides are known to provide effective detergency
Implementation Method 8
which operates at high alkalinity to inhibit scale formation and improve soil dispersion
Data Source
AI summary
Detergent compositions and methods of preparing and using the detergent compositions are disclosed. The detergent compositions comprise a polymer system comprising at least one polycarboxylic acid polymer, copolymer, or terpolymer, an alkalinity source comprising an alkali metal carbonate, a nonionic surfactant and water. The detergent compositions are suitable at alkaline pH and reduce or prevent scale formation, improve soil dispersion, and provide effective detergency.