Polyalkoxylated Polyamines for Fruit Stain Removal
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Solution Overview
Problem
Current detergents and cleaning agents face challenges in effectively removing soiling from fruit-containing preparations due to their thickener and fruit content, which is difficult to clean, especially when using existing surfactants and detergents.
Innovation Solution
The use of polyalkoxylated polyamines, specifically those obtained by reacting polyamines with ethylene oxide and propylene oxide, where the proportion of propylene oxide is between 2 mol% to 18 mol%, is introduced to enhance the primary detergency of detergents or cleaning agents for washing textiles or cleaning hard surfaces against fruit-containing soiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional surfactants and detergents are used to wash textiles, then the washing process can be completed, but the removal of fruit-containing soiling is insufficient due to the thickener and fruit content making it difficult to clean
Solution Approach 1:
The patent modifies the chemical composition parameters of the detergent by introducing polyalkoxylated polyamines with specific propylene oxide content (2-18 mol%). This parameter change enhances the detergent's ability to bind and remove fruit-containing soiling, transforming the insufficient detergency into effective cleaning performance.
Solution Approach 2:
The patent creates a composite detergent system by combining polyalkoxylated polyamines with conventional surfactants and other detergent components. This composite approach leverages the specific cleaning properties of the polyamine while maintaining the overall effectiveness of the detergent formulation against tough soiling.
2Reliability
If polyalkoxylated polyamines with high propylene oxide content are used, then the primary detergency is enhanced, but the proportion of propylene oxide must be controlled within a specific range to achieve optimal effect
Solution Approach 1:
The patent establishes an optimal parameter range for propylene oxide content (2-18 mol%) in the polyalkoxylated polyamine structure. By controlling this parameter within the specified range, the detergent achieves enhanced primary detergency while avoiding negative effects that would result from excessive propylene oxide content.
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 polyalkoxylated polyamines significantly improve the washing or cleaning power, particularly when used in conjunction with synthetic anionic surfactants, enhancing the removal of tough fruit-containing dirt, as demonstrated by improved reflectance values in washing tests.
Implementation Method 1
Amphiphilic water-soluble alkoxylated polyamines with an inner polyoxyethylene block and an outer polyoxypropylene block are known from international patent application WO 2006/108856 A1
Implementation Method 2
Such auxiliary substances also include substances whose presence increases the detergency of surfactants without them generally having to exhibit surfactant behavior themselves. The same applies to cleaning products for hard surfaces. Such substances are often referred to as detergent boosters.
Data Source
AI summary
The primary detergency of detergents and cleaning products is to be improved in particular against stains from preparations containing fruit. This is substantially achieved by incorporating polyalkoxylated polyamines which can be obtained by reacting polyamines with ethylene oxide and propylene oxide, the percentage of propylene oxide relative to the total quantity of the alkylene oxide ranging from 2 mol.% to 18 mol.%.