Detergent Granule with Low Aspect Ratio and Salt Composite
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Solution Overview
Problem
Mid-cut alkyl sulfate (MCAS) particles in cleaning compositions face challenges with limited suds-boosting effect due to large size and poor dissolution profile, and are prone to caking and clumping at higher temperatures and humid environments, complicating processing and handling.
Innovation Solution
Forming detergent granules with a small particle size and low aspect ratio, containing 85-95% MCAS and 4-14% water-soluble salts, which enhances dissolution and reduces water absorption, thereby minimizing caking and clumping issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If MCAS is used in extruded needle form, then processing ease is improved, but suds-boosting effect deteriorates
Solution Approach 1:
The patent changes the physical parameters of MCAS from extruded needle form to spherical granule form with specific size range (200-1000 μm) and aspect ratio (≤2). This parameter change improves both dissolution rate (enhancing suds-boosting effect) and processing characteristics (reducing caking and clumping).
Solution Approach 2:
The patent creates a composite granule structure combining MCAS with water-soluble salts (sodium sulfate, sodium carbonate, magnesium chloride, magnesium sulfate, or sodium silicate) in specific ratios. This composite approach enhances dissolution profile while maintaining processing ease and reducing caking tendency.
2Reliability
If MCAS is used in fine powder form, then suds-boosting effect is improved, but caking and clumping worsens
Solution Approach 1:
The patent optimizes particle size parameters to a specific range (200-1000 μm) and controls aspect ratio (≤2), creating spherical granules that balance dissolution rate with flowability. This prevents the caking and clumping issues of fine powder while maintaining good suds-boosting effect.
Solution Approach 2:
The patent formulates composite granules containing MCAS (85-95%) combined with water-soluble salts (5-15%). This composition reduces water absorption and caking tendency while preserving the suds-boosting effectiveness of MCAS.
3Speed
If MCAS particle size is reduced, then dissolution profile is improved, but water absorption increases
Solution Approach 1:
The patent creates composite granules with MCAS (85-95%) and water-soluble salts (5-15%). The water-soluble salt component modifies the overall water absorption characteristics of the granule, allowing faster dissolution of MCAS while controlling excessive water uptake that would lead to caking.
Solution Approach 2:
The patent maintains particle size in the optimized range (200-1000 μm) with aspect ratio ≤2, achieving a balance between dissolution rate and water absorption. The spherical shape and size control prevent excessive surface area that would increase water uptake while ensuring adequate dissolution performance.
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 solution improves the suds-boosting effect and reduces the likelihood of caking and clumping, making the detergent granules easier to handle and store, while maintaining high detersive activity and flowability.
Implementation Method 1
the dissolution profile of such detergent granule can be improved
Implementation Method 2
it is less likely to absorb ambient water and therefore less like to cake or form clumps during shipping or storage
Data Source
Figure 1
AI summary
A detergent granule is characterized by a Medium Particle Size ranging from 200 μm to 1000 μm and an aspect ratio of no more than 2, and contains from 85 wt% to 95 wt% of an alkyl sulfate (AS) having a branched or linear unalkoxylated C6-C16 alkyl group and from 4 wt% to 14 wt% of a water-soluble salt, with a water or moisture content of from 1 wt% to 5 wt%.