Four-Phase Laundry Detergent Wipe for Controlled Bleaching Activation
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Solution Overview
Problem
Existing laundry detergents face challenges in controlled activation of bleaching agents and enzymes due to chemical incompatibility, with bleaching agents being activated too early or not effectively, and stability issues in alkaline pH, leading to reduced cleaning efficacy and quality loss during storage.
Innovation Solution
A four-phase heavy-duty laundry detergent wipe is developed, using a liquid non-aqueous starting solution with enzymes, surfactants, and polyvalent alcohols, incorporating soap to create a two-phase system, and adding insoluble washing active solid components, which are applied to a solid carrier substrate, allowing controlled release of bleaching agents and enzymes during washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bleaching agents are incorporated into liquid laundry detergent, then cleaning power is improved, but stability during storage deteriorates due to chemical incompatibility and premature activation
Solution Approach 1:
The detergent system is segmented into multiple phases: a liquid phase containing surfactants and enzymes, and a separate solid phase containing bleaching agents. This physical separation prevents chemical incompatibility and premature activation of bleaching agents during storage, while allowing both components to function effectively during the washing process.
Solution Approach 2:
Water acts as an intermediary that triggers the activation of bleaching agents only during the washing process. The solid bleaching agent components dissolve and activate in the presence of water, enabling controlled release and preventing premature reactions during storage while maintaining cleaning effectiveness.
2Productivity
If washing active substances are released early, then cleaning effectiveness is improved, but quality loss during storage increases
Solution Approach 1:
The detergent is prepared in advance with all necessary components (surfactants, enzymes, solid bleaching agents) separated and stable during storage. The activation of bleaching agents is triggered preliminarily by water addition during the washing process, ensuring cleaning effectiveness without premature quality loss.
Solution Approach 2:
The physical state of bleaching agents changes from solid (stable during storage) to dissolved/activated state (effective during washing) upon contact with water. This parameter change enables controlled activation timing, preventing quality loss during storage while maintaining cleaning effectiveness during use.
3Ease of operation
If liquid detergent components are used, then ease of dosing is improved, but cleaning power deteriorates compared to heavy-duty powder detergents
Solution Approach 1:
The detergent combines liquid and solid phases into a composite system. The liquid phase provides ease of dosing and application, while the solid phase contains heavy-duty washing active substances including bleaching agents. This composite structure delivers both user convenience and high cleaning power comparable to powder detergents.
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 approach ensures effective, controlled activation of bleaching agents and enzymes, maintaining quality and stability during storage, and enhancing cleaning efficiency by delaying bleaching agent activation until the washing process, thus preventing undesired reactions and improving the overall performance of the detergent.
Implementation Method 1
admixing at least two different washing active solid components to the liquid laundry detergent solution which are insoluble in the polyvalent alcohols
Implementation Method 2
obtain a laundry detergent dispersion which contains the liquid laundry detergent solution as a liquid continuous outer binary phase and the at least two washing active solid components as a solid phase
Implementation Method 3
applying the laundry detergent dispersion to a solid carrier substrate
Implementation Method 4
the activation of the washing active substances (phase emission diffusion) over a longer period could be observed
Data Source
AI summary
The present invention discloses a method for manufacturing a four-phase heavy-duty laundry detergent wipe, characterized by the following steps: (a) manufacturing a liquid starting laundry detergent solution which contains enzymes, surfactants and at least one polyvalent alcohol as a solubilizer and which is present in a liquid phase; (b) incorporating soap in the liquid starting laundry detergent solution to obtain a liquid laundry detergent solution (A), wherein the liquid laundry detergent solution is two-phase due to over-saturation; (c) admixing at least two different washing active solid components to the liquid laundry detergent solution (A) which are insoluble in the polyvalent alcohols of step a) to obtain a laundry detergent dispersion (B) which contains the liquid over-saturated two-phase laundry detergent solution (A) from step b) as a liquid continuous outer binary phase and the at least two washing active solid components as a solid phase; (d) applying the laundry detergent dispersion (B) to a solid carrier substrate (C) such that the final product is a four-phase system. Furthermore, a four-phase heavy-duty laundry detergent wipe is disclosed, comprising a solid carrier substrate (C) and a laundry detergent dispersion (B) which has been applied to the carrier substrate, characterized in that the laundry detergent dispersion contains a liquid over-saturated two-phase laundry detergent solution (A), which contains enzymes, surfactants and soap and at least one polyvalent alcohol as a solubilizer, as a liquid continuous outer binary phase and at least two different washing active solid components as a solid phase which is insoluble in the solubilizer.