Hand Dishwashing Detergent Composition for Faster Dishware Drying
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid hand dishwashing detergents, even with cationic polymers, do not adequately improve drying time of dishware, particularly in soft water conditions.
Innovation Solution
A liquid hand dishwashing detergent composition comprising a surfactant system with a cationic polymer, such as quaternised acrylic copolymer or cationic polyvinyl alcohol, and a 1,2-alkanediol, which enhances drying speed by improving sheeting and rinsing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If cationic polymers are added to improve sheeting and drying speed, then drying performance is improved, but the effect is insufficient especially in soft water conditions
Solution Approach 1:
The patent combines cationic polymers with 1,2-alkanediols to create a composite detergent composition. The 1,2-alkanediols have hydrophobic alkyl chains that interact with water and hydrophilic diol groups that interact with the cationic polymer, creating a synergistic effect that enhances sheeting and drying performance consistently across different water hardness conditions.
Solution Approach 2:
The patent introduces 1,2-alkanediols with specific alkyl chain lengths (C8-C16) to modify the physical-chemical parameters of the detergent composition. This changes the surface tension and hydrophobic-hydrophilic balance, enabling reliable sheeting and drying performance regardless of water hardness variations.
2Shape
If quaternised acrylic copolymer is used to improve sheeting, then water sheeting is improved, but drying speed remains insufficient
Solution Approach 1:
The patent merges the water sheeting capability of quaternised acrylic copolymer with the drying acceleration effect of 1,2-alkanediols. The combination creates a dual-function system where the polymer provides sheeting while the alkanediol component accelerates evaporation, achieving both improved sheeting and faster drying speed simultaneously.
Solution Approach 2:
The 1,2-alkanediols act as an intermediary substance that bridges the gap between water and the cationic polymer. The hydrophobic alkyl chains of the alkanediols interact with water while the hydrophilic diol groups interact with the polymer, facilitating enhanced water removal and faster drying.
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 composition significantly reduces drying time of dishware by improving sheeting and rinsing, providing a more efficient dishwashing experience.
Implementation Method 1
The use of cationic polymers, including quaternised acrylic copolymers, cationic polyvinyl alcohols and cationic celluloses for improving sheeting of water off dishware
Implementation Method 2
a liquid hand dishwashing detergent composition comprising from 5.0% to 50% by weight of the liquid hand dishwashing detergent composition of a surfactant system
Implementation Method 3
fast drying of dishware after dishwashing and rinsing is highly desired
Data Source
AI summary
The need for a liquid hand dishwashing detergent, comprising a cationic polymer, having further improved speed of drying of dishware after hand dishwashing, is met by further formulating the composition with an 1,2-alkanediol.