Solid Detergent Surfactant Blend Dispensing
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Solution Overview
Problem
Conventional detergents used in warewashing and laundering industries, such as alkyl phenol ethoxylates (APEs) and phosphates, are environmentally unfavored due to their persistence and toxicity, necessitating the development of alternative surfactants that can replicate their cleaning properties without environmental harm.
Innovation Solution
A solid detergent composition incorporating an ethoxylated and propoxylated surfactant blend, an alkalinity source, and a chelating agent, which are biodegradable and free from phosphorus and APEs, to enhance detergency and prevent calcium carbonate precipitation, thereby offering a more environmentally friendly cleaning solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional APEs and phosphates are used in detergents, then cleaning effectiveness and water hardness reduction are improved, but environmental harm and persistence increase
Solution Approach 1:
The patent changes the chemical parameters of the detergent formulation by replacing APEs with ethoxylated and propoxylated surfactants, and replacing phosphates with chelating agents. This substitution maintains cleaning effectiveness while improving biodegradability and reducing environmental persistence, directly resolving the contradiction between reliability and environmental harm
Solution Approach 2:
The invention uses a composite surfactant system combining ethoxylated and propoxylated groups in a single molecular structure. This composite approach provides both effective cleaning performance and enhanced environmental compatibility, as the specific molecular architecture enables effective soil removal while maintaining biodegradability and reducing toxicity
2Reliability
If phosphates are used to prevent calcium carbonate precipitation, then surface appearance and fabric feel are improved, but environmental persistence and toxicity increase
Solution Approach 1:
The patent changes the chemical nature of the water softening agent from phosphate-based to chelating agent-based systems. These chelating agents effectively bind calcium ions to prevent calcium carbonate precipitation while being more environmentally benign and less persistent in the environment, resolving the contradiction between precipitation prevention and environmental persistence
Solution Approach 2:
The invention extracts and removes phosphorus-containing compounds from the detergent formulation entirely, replacing them with alternative water softening mechanisms using chelating agents. This extraction of the harmful phosphate component eliminates the environmental persistence issue while maintaining the functional benefit of preventing calcium carbonate precipitation
3Object-affected harmful factors
If ethoxylated and propoxylated surfactants are used, then biodegradability and environmental friendliness are improved, but detergentgency and dispensing performance must be maintained
Solution Approach 1:
The patent employs a composite surfactant molecule containing both ethoxylated and propoxylated groups in a specific molecular architecture. This composite structure provides the hydrophilic-lipophilic balance needed for effective detergency while maintaining biodegradability and environmental compatibility, thus achieving both improved environmental friendliness and maintained cleaning performance
Solution Approach 2:
The invention optimizes the molecular parameters of the surfactant by controlling the ratio and length of ethoxylated and propoxylated chains. This parameter optimization ensures adequate water solubility, emulsification capability, and biodegradability while maintaining effective soil removal performance, resolving the contradiction between environmental friendliness and detergency
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 solid detergent composition effectively removes organic soils and prevents calcium carbonate precipitation, providing superior cleaning performance while being environmentally preferred due to its biodegradability and absence of harmful compounds.
Implementation Method 1
a surfactant having both ethoxylated and propoxylated groups
Implementation Method 2
detergency, the ability to wet, emulsify, suspend, penetrate, and dispense soils
Implementation Method 3
chelating agent... ability to prevent calcium carbonate precipitation
Implementation Method 4
solidification agent... form a solid composition
Data Source
AI summary
A solid detergent composition includes an ethoxylated and propoxylated surfactant, an alkalinity source, a solidification agent and a chelating agent. The ethoxylated and propoxylated surfactant can include a surfactant blend of naturally sourced ethoxylated and propoxylated surfactants.