Water Soluble Pouch for Liquid Detergent with Inorganic Sulfate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Water soluble pouches containing high water content liquid detergents face issues with dissolution, stickiness, leakage, and stability due to chemical reactions and high water sensitivity, making it difficult to maintain performance and prevent overconsumption.
Innovation Solution
Incorporating inorganic sulfate salts, such as sodium sulfate, into the liquid detergent and using a hydrolyzed polymer film with specific thickness and monomer composition to create a durable and non-sticky water soluble pouch, which can withstand high water content and prevent chemical reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If water soluble pouches are used to contain high water content liquid detergent, then the detergent can be packaged in pre-measured unit doses for convenience and environmental friendliness, but the pouch dissolves prematurely in cold water and becomes sticky
Solution Approach 1:
The patent changes the chemical composition parameters of the liquid detergent by adding specific inorganic sulfate salts (such as sodium sulfate, potassium sulfate, magnesium sulfate, or aluminum sulfate) at concentrations of 0.1-20 wt%. This parameter change prevents premature pouch dissolution and stickiness while maintaining the water soluble pouch's ability to dissolve in washing water, thus resolving the contradiction between convenience and reliability.
2Reliability
If different active ingredients are combined in liquid detergent to achieve higher cleaning performance, then cleaning effectiveness improves, but chemical reactions between ingredients may occur
Solution Approach 1:
The inorganic sulfate salts act as an intermediary substance that stabilizes the chemical composition of the liquid detergent. These salts prevent harmful chemical reactions between different active ingredients while maintaining their cleaning effectiveness, thus resolving the contradiction between cleaning performance and chemical stability.
3Ease of manufacture
If glycols are used as diluent in liquid detergent, then detergent formulation is flexible, but costs increase; if water is used as diluent to reduce costs, then pouch dissolution and stickiness problems occur
Solution Approach 1:
The patent changes the formulation parameters by using water as the primary diluent (thereby reducing costs) and adding inorganic sulfate salts to prevent the pouch dissolution and stickiness issues that normally accompany high water content formulations. This resolves the contradiction between manufacturing cost and pouch stability.
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 addition of inorganic sulfate salts enhances the solubility and stability of the pouch, preventing stickiness and leakage while maintaining cleaning performance, and the specific film composition ensures the pouch dissolves effectively without premature degradation.
Implementation Method 1
The addition of inorganic sulfate salts into the liquid detergent enhances the solubility and stability of the pouch, preventing stickiness and leakage while maintaining cleaning performance
Implementation Method 2
The water soluble pouch may be formed from a film including at least one of a polymer of hydrolyzed vinyl acetate and a copolymer of hydrolyzed vinyl acetate and a second monomer
Data Source
AI summary
A detergent packet includes a liquid detergent contained within a water soluble pouch. The water soluble pouch is formed from a film including at least one of a polymer of hydrolyzed vinyl acetate and a copolymer of hydrolyzed vinyl acetate and a second monomer. The liquid detergent includes between 5 wt % and 60 wt % water and between 0.5 wt % and 15 wt % inorganic sulfate.