Fragmented Extruded Animal Litter Absorption
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Solution Overview
Problem
Extruded animal litters, particularly those made from clay and starch, have a surface film that reduces their absorption rate due to decreased permeability, necessitating a method to increase their liquid absorption capacity.
Innovation Solution
Fragmenting extruded animal litter particles to increase their surface area by at least 10% exposes the interior, which has higher absorption rates than the surface, thereby enhancing the litter's ability to absorb liquids like urine or feces moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If extruded animal litter particles are made with a surface film to reduce dust, then dust creation is reduced, but absorption rate decreases
Solution Approach 1:
The extruded animal litter particles are fragmented into smaller particles, dividing the original particle structure into multiple smaller units. This segmentation increases the total surface area and exposes fresh interior surfaces that have higher absorption capabilities, thereby resolving the contradiction between maintaining surface film integrity for dust reduction and achieving high absorption rates.
Solution Approach 2:
The fragmentation process creates particles with different surface characteristics - some surfaces retain the original film while new exposed surfaces have enhanced absorption properties. This local variation in surface quality allows different regions of the litter to perform different functions: dust reduction where film remains and high absorption where interior surfaces are exposed.
2Productivity
If extruded animal litter particles are fragmented to increase surface area, then absorption rate increases, but manufacturing complexity increases
Solution Approach 1:
The fragmentation step is incorporated into the existing manufacturing process flow, performed as a preliminary action before the litter is packaged and distributed. By integrating this step into the production line rather than adding a separate post-processing stage, the manufacturing complexity is minimized while still achieving the desired absorption rate enhancement.
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 fragmentation process significantly increases the absorption rate of the litter particles, with absorption rates exceeding predictions based on surface area expansion, demonstrating improved performance over unfragmented particles.
Implementation Method 1
The interior portion of these extruded litter particles has the ability to absorb liquids such as animal urine or the moisture from animal feces or other wastes at an increased rate compared to the surface portion of the particles
Data Source
AI summary
The invention provides animal litters that have an increased absorption rate and methods of making and using such litters. The animal litters comprise one or more animal litter particles that have been produced by fragmenting extruded animal litter particles that have a film on the surface of the particle that adversely affects the absorption rate. The fragmenting exposes the interior of the extruded animal litter particles, which does not have this film, to the external environment and increases the absorption rate.