Toothpaste Composition With Phosphate Particles for Release and Whitening
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Solution Overview
Problem
Existing toothpastes face issues with poor release properties, shape retention, and ineffective cleaning and whitening due to high thickener concentrations, leading to difficulties in delivering active ingredients and maintaining stability, especially with hydrogen peroxide.
Innovation Solution
Incorporating a structurant instead of reducing thickener content, using a chelating agent with phosphate supersaturation, and separating peroxide and thickener in the toothpaste composition to enhance release, cleaning, and whitening effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If high concentration of thickener is used to maintain shape retention, then shape retention property is improved, but release property deteriorates
Solution Approach 1:
The patent divides the thickening function into two separate components: a thickener (for shape retention) and a structurant (for release property). This segmentation allows each component to perform its specific function optimally without interfering with the other, resolving the contradiction between shape retention and release property
Solution Approach 2:
The patent uses a composite system combining thickener and structurant materials to achieve both shape retention and good release properties. The thickener provides the necessary viscosity and shape, while the structurant ensures easy release during brushing, creating a synergistic effect that resolves the technical contradiction
2Stability of the object's composition
If high concentration of thickener is used to maintain viscosity, then viscosity is improved, but cleaning power deteriorates
Solution Approach 1:
The patent separates the viscosity-providing function (thickener) from the cleaning function (structurant and active ingredients). This allows the thickener to maintain viscosity without interfering with the cleaning action, as the structurant provides the necessary rheological properties for cleaning effectiveness
Solution Approach 2:
The patent optimizes the concentration and type of thickener and structurant to achieve the desired viscosity range that allows effective cleaning. By carefully controlling these parameters, the patent ensures that the toothpaste has sufficient viscosity for shape retention but remains effective for cleaning
3Quantity of substance
If peroxide and thickener are mixed together, then homogeneous composition is improved, but peroxide stability deteriorates
Solution Approach 1:
The patent physically separates peroxide from the thickener component, preventing direct interaction that would cause decomposition. This segmentation maintains peroxide stability while still achieving a homogeneous overall composition through proper formulation and mixing of separate phases
Solution Approach 2:
The patent uses a structurant as an intermediary component that bridges the peroxide phase and thickener phase without causing decomposition. The structurant allows for stable coexistence of peroxide and thickener by preventing direct contact while maintaining overall composition homogeneity
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 achieves improved release and shape retention with enhanced cleaning and whitening power, stability, and a crunchy sensation, while maintaining hydrogen peroxide activity.
Implementation Method 1
a chelating agent with phosphate supersaturation, and particles of the precipitated phosphate realize a strong cleaning power, a whitening effect
Implementation Method 2
A substance having this effect is peroxide, which has a low molecular weight and is decomposed into water and oxygen
Data Source
AI summary
A toothpaste composition has silica and a precipitated phosphate. The content of the precipitated phosphate is 2% to 10%, based on the total weight of the toothpaste composition and the average diameter of the precipitated phosphate particles is 75 μm to 180 μm. The toothpaste composition of the present invention was confirmed to have the effects of improving the cleaning power and the stain removal power. The toothpaste composition has excellent effect of removing stains on the tooth surface and brightening teeth.