Oral Composition for Protein Stain Removal
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Solution Overview
Problem
Existing oral compositions fail to effectively remove protein staining from teeth, prevent its adhesion, and provide a satisfactory cleaning effect, while also lacking in acid resistance and low-temperature stability, and often result in unpleasant tastes.
Innovation Solution
An oral composition comprising specific amounts of N-acylamino acid or its salt and pyrophosphoric acid or its salt, at a specific ratio, which enhances the removal of protein staining, prevents its adhesion, and provides a smooth cleaning effect, excellent acid resistance, and good low-temperature stability, along with a balanced taste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If amino acid-based surfactants are used to reduce skin and mucosal irritation, then irritation is reduced, but bitterness increases
Solution Approach 1:
The patent changes the molecular structure parameters of the surfactant by using specific N-acyl amino acid salts with controlled acyl chain lengths (C12-C18) and specific amino acid types (glutamic acid, aspartic acid). This structural parameter optimization reduces bitterness while maintaining low irritation properties.
Solution Approach 2:
The patent creates a composite surfactant system by combining N-acyl amino acid salts with specific sugars (sucrose, lactose) and polyols (glycerin, sorbitol). This composite approach balances the bitter taste of amino acid salts with the sweetening effects of sugars and polyols, while maintaining the low-irritation benefits.
2Productivity
If pyrophosphate is blended to prevent adhesion of dirt to tooth surface, then cleansing effect is enhanced, but taste becomes unpleasant
Solution Approach 1:
The patent optimizes the concentration parameter of pyrophosphate to a specific range (0.01-0.5 mass%) and controls the ratio between pyrophosphate and amino acid-based surfactant. This parameter optimization maintains effective dirt prevention while minimizing unpleasant taste effects.
Solution Approach 2:
The patent uses sugars (sucrose, lactose) and polyols (glycerin, sorbitol) as intermediary substances that mask the unpleasant taste of pyrophosphate. These intermediaries provide a sweetening effect that counterbalances the bitter and salty tastes generated by pyrophosphate and amino acid salts.
3Object-affected harmful factors
If acylamino acid salt is used as surfactant, then skin and mucosal irritation is reduced, but foaming ability decreases
Solution Approach 1:
The patent merges multiple surfactant types by combining N-acyl amino acid salts (anionic surfactant) with sugar esters (nonionic surfactant). This combination allows the amino acid salt to provide low irritation while the sugar ester compensates for foaming ability, achieving both low irritation and adequate foaming performance.
Solution Approach 2:
The patent creates a composite surfactant system where N-acyl amino acid salts are blended with sugar esters and polyols. This composite formulation synergistically combines the low-irritation properties of amino acid salts with the foaming enhancement of sugar esters and polyols.
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 effectively removes protein staining, prevents its adhesion, enhances cleaning efficacy, and maintains acid resistance and stability under low temperatures, while ensuring a pleasant taste.
Implementation Method 1
various surfactants have been used as a foaming agent to enhance dispersibility of components blended
Implementation Method 2
blending of a pyrophosphate or the like can prevent the adhesion of dirt to a tooth surface
Data Source
Figure 1~2
Figure 3
AI summary
Provided is an oral composition that can sufficiently remove protein staining present on a tooth surface, can effectively prevent adhesion of protein staining on a tooth surface and can provide a good actual feeling of the cleaning effect in the oral cavity. The oral composition comprises the following components (A) and (B) : (A) an N-acylamino acid or a salt thereof in an amount of 0.005 mass% or more and 0.3 mass% or less; and (B) pyrophosphoric acid or a salt thereof in an amount of 0. 005 mass% or more and 0.5 mass% or less, in which a mass ratio ((B)/(A)) of the component (B) to the component (A) is 0. 05 or more and 40 or less and a total content of the component (A) and the component (B) is 0.01 mass% or more and 0.6 mass% or less.