Polyalkoxylated Polyamine Detergent for Protein Soil Removal
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Solution Overview
Problem
Current detergents and cleaning agents face challenges in effectively removing protein-containing soils, such as blood, egg, and milk, due to limitations in primary detergency, which affects their cleaning performance on textiles and hard surfaces.
Innovation Solution
The use of a combination of polyalkoxylated polyamines and low alkoxylated nonionic surfactants, specifically reacting polyamines with alkylene oxide and alkoxylated C8-C18 alcohols, enhances the primary washing or cleaning power of detergents by improving their detergency-enhancing properties, particularly for protein-containing soils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional detergents are used, then general cleaning function is provided, but primary detergency against protein-containing soils is insufficient
Solution Approach 1:
The patent combines polyalkoxylated polyamines with low alkoxylated nonionic surfactants (alkoxylated C8-C18 alcohols with degree of alkoxylation 1-5) to create a composite detergent system. This composite approach leverages the synergistic interaction between the polyamine component and the specific nonionic surfactant to achieve enhanced primary detergency against protein-containing soils, resolving the contradiction between general cleaning function and specialized protein soil removal efficiency.
Solution Approach 2:
The patent optimizes specific parameters including the degree of alkoxylation of the nonionic surfactant (1-5, preferably 2-4), the weight ratio of polyalkoxylated polyamine to alkoxylated alcohol (1:3 to 3:1, preferably 1:2 to 2:1), and the concentration ranges in the washing liquor (1-500 mg/l for both components). These parameter optimizations enable the detergent to achieve superior primary detergency on protein soils while maintaining overall cleaning performance.
2Reliability
If alkoxylated polyamines are combined with certain nonionic surfactants, then primary detergency is enhanced, but formulation complexity increases
Solution Approach 1:
The patent applies local quality by specifying precise structural characteristics for the nonionic surfactant component (alkoxylated C8-C18 alcohols with degree of alkoxylation 1-5). This targeted specification ensures that only surfactants with the appropriate local molecular properties are used, enabling effective interaction with polyalkoxylated polyamines to enhance primary detergency without requiring complete reformulation of the entire detergent system.
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
This combination significantly improves the primary washing or cleaning power of detergents, effectively removing protein-containing soils from textiles and hard surfaces, as demonstrated by enhanced cleaning performance compared to detergents without this active ingredient combination.
Implementation Method 1
it was found that alkoxylated polyamines have particularly good primary detergency-enhancing properties when they are combined with certain nonionic surfactants
Data Source
AI summary
The primary washing power of detergents and cleaning agents, particularly with regard to protein-containing soiling, was to be improved. This was achieved substantially by incorporating a combination of polyalkoxylated polyamine with alkoxylated C8-C22 alcohol having an average alkoxylation degree in the range from 1 to 5.