Nanoparticle Polysaccharide for Transparent Liquid Detergent
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Solution Overview
Problem
Liquid detergents containing carboxymethyl cellulose as a graying inhibitor face issues with low solubility, leading to clouding and aesthetically unappealing transparent formulations, and stable dispersions are difficult to achieve due to large particle sizes.
Innovation Solution
Incorporating graying-inhibiting polysaccharides with particle sizes less than 100 nm, preferably less than 50 nm, achieved through mechanical reduction processes, which are then mixed with surfactants and other detergent components to create stable and transparent liquid detergents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carboxymethyl cellulose is incorporated into liquid detergents to prevent graying, then graying inhibition is improved, but the detergent becomes cloudy and aesthetically unappealing due to low solubility
Solution Approach 1:
The patent applies parameter changes by reducing the particle size of carboxymethyl cellulose from conventional large particles to nanoparticles with a diameter of 1-100 nm. This size reduction fundamentally changes the solubility and dispersion properties of the polysaccharide, enabling it to remain dissolved in liquid detergent formulations without causing clouding, while maintaining its graying inhibition function.
Solution Approach 2:
The patent applies segmentation by dividing the carboxnymethyl cellulose into extremely fine particles through mechanical reduction processes. This segmentation into nanoparticulate form increases the surface area and improves dissolution characteristics, allowing the graying inhibitor to be effectively distributed throughout the liquid detergent matrix without forming visible aggregates that would reduce transparency.
2Reliability
If carboxymethyl cellulose is used as a graying inhibitor, then graying prevention is improved, but stable dispersions are difficult to obtain due to large particle size
Solution Approach 1:
The patent changes the critical particle size parameter of carboxnymethyl cellulose to the nanoscale range (1-100 nm). This parameter change fundamentally improves dispersion stability by reducing gravitational settling and enhancing compatibility with the liquid detergent matrix, while preserving the graying inhibition mechanism that relies on the polysaccharide's molecular structure rather than particle size.
Solution Approach 2:
By segmenting the carboxnymethyl cellulose into nanoparticulate form, the patent creates a stable colloidal dispersion where the extremely fine particles remain uniformly distributed throughout the liquid detergent. This segmentation prevents aggregation and settling, achieving long-term stability while maintaining the functional integrity of the graying inhibitor.
3Ease of manufacture
If large particle size polysaccharide is used, then ease of manufacture is improved, but the detergent shows poor graying inhibition and instability
Solution Approach 1:
The patent applies preliminary action by pre-reducing the carboxnymethyl cellulose to nanoparticulate form before incorporation into the detergent formulation. This preliminary size reduction step, achieved through mechanical reduction processes, ensures that the polysaccharide is in the optimal size range for both stability and graying inhibition performance, eliminating the need for complex in-formulation processing steps.
Solution Approach 2:
The patent fundamentally changes the particle size parameter of the polysaccharide from conventional large particles to nanoparticles (1-100 nm). This parameter change simultaneously improves graying inhibition effectiveness and formulation stability, while the mechanical reduction processes used to achieve this transformation are well-established industrial techniques that maintain manufacturing simplicity.
Data Source
AI summary
The invention describes a stable and transparent liquid detergent or liquid cleaning agent comprising a graying inhibiting polysaccharide having a particle size of less than 100 nm. The invention further relates to the use of the liquid detergent or liquid cleaning agent and a method for the production thereof.