Detergent Article With Segmented Dye Scavenger and Bleaching Modules
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Solution Overview
Problem
Current detergent products face challenges in simultaneously providing dye-scavenging, bleaching, and anticalcareous actions while avoiding interactions between components that can render them inactive, and they do not effectively address the issue of water hardness leading to limestone encrustations in washing machines and damage to clothes.
Innovation Solution
A detergent article with a flexible, water-insoluble carrier irreversibly impregnated with a cationic heterocyclic polymer dye scavenger and containing sodium dodecylbenzenesulphonate, polyethoxylated alcohol, and vegetable soaps, along with a bleaching additive like TAED-percarbonate and PAP, using a manganese-based oxygen-releasing catalyst, and optionally an EDTA salt for anticalcareous action, which allows for effective bleaching and water softening without inactivating components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple functional components (dye scavenger, bleaching agent, anticalcareous agent) are combined in a single detergent product, then multi-effect cleaning performance is improved, but component interactions may occur that render additives inactive
Solution Approach 1:
The detergent product is segmented into distinct functional modules: dye scavenger component, bleaching component, and anticalcareous component. Each module is formulated to operate independently, preventing harmful interactions while maintaining individual effectiveness. The dye scavenger uses cationic polymers that do not oxidize, separating its function from the oxidizing bleaching agents.
Solution Approach 2:
The patent introduces specific intermediary substances that mediate between different functional components. The dye scavenger component acts as an intermediary that removes colored impurities before they can interact with bleaching agents, while the anticalcareous component intermediates to prevent calcium/magnesium from interfering with detergent action.
2Quantity of substance
If conventional detergents are used in hard water, then cleaning action is partially neutralized by calcium and magnesium salts, but this leads to detergent overdose, increased cost, and environmental pollution
Solution Approach 1:
The anticalcareous component serves as an intermediary that binds calcium and magnesium ions, preventing them from neutralizing the detergent's cleaning action. This allows the detergent to work effectively at lower dosages even in hard water, reducing both cost and environmental impact.
Solution Approach 2:
The patent changes the chemical parameters of the detergent system by incorporating specific anticalcareous agents that alter water hardness parameters. This enables the detergent to maintain optimal effectiveness across a wider range of water hardness conditions without requiring excessive dosage.
3Productivity
If washing programs use high temperatures for effective cleaning, then cleaning performance is improved, but energy consumption increases and color release from colored garments increases
Solution Approach 1:
The patent changes the chemical parameters of the detergent components to enable effective cleaning at lower temperatures. The bleaching component and enzyme system are formulated to be highly active at reduced temperatures, allowing effective cleaning without the energy consumption and color release associated with high-temperature washing.
Data Source
AI summary
A detergence article is described, comprising a flexible carrier, non-soluble in water, irreversibly impregnated with a dye scavenger component, and containing at least one component in the form of a powder or gel, consisting of a detergent and/or additive component. The invention also relates to a process for obtaining a detergence article and its use for washing by hand or in a washing-machine.