Oligohydroxybenzoic Acid Amides in Liquid Detergents
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Solution Overview
Problem
Stable liquid detergents and cleaning agents without bleach struggle to effectively remove bleachable stains, particularly those containing polymerizable substances like polyphenolic dyes, as they can cause intensification or deterioration of soiling during the washing process due to initiated chemical reactions.
Innovation Solution
The use of oligohydroxybenzoic acid amides, specifically compounds of the general formula (I), in detergents and cleaning agents to improve washing performance against bleachable stains, including those from food products and drinks, by adding them in amounts ranging from 0.001% to 5% by weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If bleach is omitted from liquid detergents to maintain stability, then storage stability is improved, but cleaning performance on bleachable stains deteriorates
Solution Approach 1:
The patent introduces oligohydroxybenzoic acid amides as intermediary substances that mediate between the stabilizing requirement (no bleach) and the cleaning performance requirement. These compounds act as alternative active agents that can remove stains without initiating harmful polymerization reactions, thus serving as a mediator that satisfies both contradictory requirements.
Solution Approach 2:
The patent changes the chemical parameter of the detergent composition by replacing bleach (peroxides) with oligohydroxybenzoic acid amides. This parameter change allows the detergent to maintain stability while achieving cleaning performance through a different chemical mechanism that does not involve harmful side reactions with polyphenolic dyes.
2Productivity
If polyphenolic dyes in stains are exposed to washing conditions without inhibitors, then normal washing proceeds, but polymerization reactions are initiated causing stain intensification
Solution Approach 1:
The oligohydroxybenzoic acid amides are added to the detergent to preemptively inhibit polymerization reactions before they can occur during washing. These compounds act as preliminary protective agents that prevent the harmful chemical reactions between washing conditions and polyphenolic dyes, thereby preventing stain intensification before it happens.
Solution Approach 2:
The patent converts the potential harmful effect of washing conditions (which can initiate polymerization) into a beneficial outcome by using oligohydroxybenzoic acid amides to control and direct the chemical interactions. The same washing conditions that could cause harm are now harnessed to achieve cleaning while the inhibitor prevents negative side effects, turning a potentially harmful process into a beneficial one.
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
Significantly enhances the removal of bleachable stains, including those from polyphenolic dyes, by preventing polymerization and improving cleaning performance, as demonstrated by improved brightness measurements in washing tests.
Implementation Method 1
The washing or cleaning performance can be significantly improved, particularly with regard to bleachable stains... by preventing polymerization
Data Source
AI summary
The present invention relates to the use of oligohydroxybenzamides in washing and cleaning compositions for improving washing or cleaning performance in relation to bleachable strains.