Bleaching Tablet Core with Cellulose Disintegrant
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Solution Overview
Problem
Bleaching agents for hair lightening face challenges such as dust production during handling, difficult dosing for consumers, delayed disintegration of compacted tablets, and environmental concerns related to packaging and handling of hydrogen peroxide.
Innovation Solution
A bleaching tablet comprising a tablet core with peroxodisulphates, percarbonates, and a cellulose-based disintegrant, encased in a tablet shell, which dissolves in water to form a ready-to-use mixture, reducing dust and packaging waste while ensuring reliable dosing and rapid disintegration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a tablet is highly compacted to improve fracture resistance and stability, then the tablet becomes more durable during handling and storage, but the disintegration time is delayed
Solution Approach 1:
The patent incorporates disintegrant substances (superdisintegrants) into the tablet formulation before compression. These substances are pre-positioned within the tablet matrix to facilitate rapid disintegration once the tablet contacts water, counteracting the delayed disintegration effect caused by high compaction forces used to achieve fracture resistance.
Solution Approach 2:
The patent changes the physical-chemical parameters of the tablet by incorporating specific disintegrant substances that alter the tablet's response to water contact. These substances modify the disintegration characteristics without requiring reduction of compaction pressure, thus maintaining both strength and rapid disintegration.
2Stability of the object's composition
If bleaching agents are provided as separate liquid oxidizing agent and powder components, then stability is improved, but dust is produced during manufacture and mixing
Solution Approach 1:
The patent combines the oxidizing agent and the disintegrant substance into a single integrated tablet formulation. This merging eliminates the need for separate powder components that generate dust during handling and mixing, while maintaining stability through the controlled release mechanism of the tablet matrix.
3Adaptability or versatility
If powder or paste bleaching agents are used, then dosing flexibility is improved, but consumer dosing becomes troublesome and difficult to reproduce
Solution Approach 1:
The patent segments the bleaching agent into individual unit-dose tablets, each containing a pre-specified quantity of active ingredients. This segmentation provides dosing flexibility for different hair lightening requirements while eliminating the dosing difficulties associated with powders and pastes, as consumers simply need to use the appropriate number of pre-dosed tablets.
4Loss of time
If conventional disintegrants are used in highly compacted tablets, then disintegration time is reduced, but the function cannot be sufficiently guaranteed over long storage periods with aggressive bleaching ingredients
Solution Approach 1:
The patent changes the chemical composition parameter by replacing conventional disintegrants with superdisintegrants that possess enhanced stability properties. These superdisintegrants maintain their disintegration function over long storage periods even in the presence of aggressive bleaching ingredients, while still achieving rapid disintegration when activated by water contact.
5Object-affected harmful factors
If hydrogen peroxide is provided in plastic bottles as a separate component, then handling safety is improved, but packaging material is increased and ecological aspects are worsened
Solution Approach 1:
The patent merges the oxidizing agent function into the tablet matrix itself, eliminating the need for separate hydrogen peroxide bottles. This integration reduces packaging material requirements and improves ecological aspects, while maintaining handling safety through the stable, contained formulation of the tablet.
Solution Approach 2:
The tablet serves multiple functions: it contains the oxidizing agent, the disintegrant, and the structural matrix in a single universal formulation. This multi-functionality eliminates the need for separate containers and components, reducing overall packaging material while maintaining all necessary safety and performance characteristics.
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 bleaching tablet provides a convenient, dust-free, and environmentally friendly solution for hair lightening, with controlled disintegration and effective bleaching performance, minimizing hair damage and optimizing packaging efficiency.
Implementation Method 1
from about 1% to about 14% by weight of percarbonate(s)
Implementation Method 2
The oxidizing agents contained in bleaching agents are capable of lightening the hair fibre by the oxidative destruction of melanin
Implementation Method 3
from about 5% to about 15% by weight of disintegrant formed from cellulose-containing material
Data Source
AI summary
The present disclosure concerns a bleaching tablet comprising a tablet core and a tablet shell encasing the tablet core, wherein the bleaching tablet—with respect to its weight—containsa) from about 10% to about 70% by weight of peroxodisulphate(s);b) from about 1% to about 14% by weight of percarbonate(s);c) from about 5% to about 15% by weight of disintegrant formed from cellulose-containing material, wherein the percarbonate or the percarbonates are contained in the tablet core. The present disclosure furthermore concerns a method for bleaching human hair.