High Salt Toothpaste Viscosity Stabilization
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Solution Overview
Problem
Formulating a toothpaste with high levels of salt that maintains stable viscosity and excellent striping properties is challenging due to the antibacterial properties of sodium chloride, which affects the formulation's stability and performance.
Innovation Solution
A toothpaste composition containing 5-15% sodium chloride, a carrageenan-based binder system with 0.5-1.5% carrageenan, and sorbitol as a humectant, along with additional ingredients like carboxymethylcellulose, polyethylene glycol, silica, sodium lauryl sulfate, and fluoride sources, to stabilize viscosity and enhance striping properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high levels of salt (sodium chloride) are used to provide antibacterial activity, then antibacterial properties are improved, but viscosity stability deteriorates
Solution Approach 1:
The invention changes the chemical composition parameters by introducing a specific binder system containing carrageenan (0.5-1.5%) and carboxymethylcellulose (0.1-1.0%) to counteract the viscosity destabilizing effects of high salt concentrations (5-15% NaCl), thereby maintaining both antibacterial properties and viscosity stability
Solution Approach 2:
The invention uses a composite binder system combining carrageenan and carboxymethylcellulose in specific ratios to create a synergistic effect that stabilizes viscosity in high-salt formulations, allowing the toothpaste to maintain both antibacterial efficacy and rheological stability
2Reliability
If high levels of salt (sodium chloride) are used to provide antibacterial activity, then antibacterial properties are improved, but striping characteristics deteriorate
Solution Approach 1:
The invention optimizes the concentration parameters of the binder system (carrageenan 0.5-1.5% and carboxymethylcellulose 0.1-1.0%) to control the rheological properties of the toothpaste, enabling it to maintain proper striping characteristics even with high salt content (5-15% NaCl) required for antibacterial activity
Solution Approach 2:
The composite binder system of carrageenan and carboxymethylcellulose creates a balanced formulation that preserves both the antibacterial functionality of high salt concentrations and the manufacturing quality of striping characteristics through synergistic interaction between the two polymers
Data Source
AI summary
A toothpaste comprising at least 5% sodium chloride and a carrageenan-based binder, having high antibacterial efficacy, very stable viscosity and excellent striping properties, together with methods and uses therefore.