Animal Litter Composition with De-dusting Agent
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Solution Overview
Problem
Existing animal litters, particularly cat litter, suffer from significant dusting issues when handled, leading to airborne dust and tracking problems, which are unpleasant and costly due to the small particle size of clay and filler materials.
Innovation Solution
A powdered absorbent composition comprising sodium bentonite as the absorbent material, calcite, limestone, or dolomite as fillers, and guar gum or other de-dusting agents to reduce dusting, along with sodium bicarbonate for odor control, is developed. The composition includes a method of evenly distributing the de-dusting agent onto the filler particles and mixing with absorbent materials to minimize airborne dust and enhance odor neutralization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If powdered absorbent materials (clay and filler particles) are used in animal litter, then absorption performance is improved, but airborne dust is generated during handling and tracking occurs
Solution Approach 1:
The patent combines multiple materials with different functions: absorbent clay particles for absorption performance, inert filler particles for bulk and cost reduction, and de-dusting agents (such as starch, cellulose, or polymer coatings) to suppress dust generation. This composite approach allows the litter to maintain good absorption while reducing airborne dust through the synergistic effect of the de-dusting agents coating the particle surfaces.
Solution Approach 2:
The de-dusting agents act as intermediary substances that coat the surfaces of the clay and filler particles. These coatings (made from starch, cellulose, or polymers) serve as a mediator between the powdered particles and the environment, reducing particle mobility and preventing dust generation during handling while not interfering with the absorption function of the clay particles.
2Productivity
If small sized particles are used in powdered litter, then absorption efficiency is improved, but dusting and tracking problems worsen
Solution Approach 1:
The patent applies local quality modification by using de-dusting agents specifically on the particle surfaces where dust generation occurs, while leaving the bulk absorption properties of the clay particles unchanged. The de-dusting coating is applied locally to the surface layer, providing dust suppression without affecting the overall absorption efficiency of the litter material.
3Object-generated harmful factors
If de-dusting agents are added to reduce dusting, then airborne dust is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent merges the de-dusting function with the existing litter manufacturing process by incorporating de-dusting agents into the mixing and coating operations already performed for litter production. The de-dusting agents are mixed with the clay and filler particles during the standard manufacturing sequence, and coatings are applied using existing coating equipment, thereby adding dust suppression functionality without requiring entirely new manufacturing systems.
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 significantly reduces airborne dust during handling and improves odor control, allowing for efficient removal of used litter while maintaining cost-effectiveness by using a combination of water-swellable clays and fillers that neutralize acidic odors and reduce dusting.
Implementation Method 1
The composition comprises an absorbent material... sodium bentonite... which produces less airborne dust when handled
Implementation Method 2
The filler can be calcite, limestone, dolomite or a mixture of limestone with dolomite... improves odor control of the animal litter
Implementation Method 3
a de-dusting agent of guar gum has previously been produced by adding an aqueous solution of the guar gum to the limestone and dolomite mixture
Implementation Method 4
The addition of sodium bicarbonate particles to the composition, improves odor control of the animal litter
Data Source
AI summary
There is provided an absorbent composition for water-based liquids, wherein dusting normally associated with handling of powdered absorbent materials is significantly reduced. The composition can be an animal litter, such as cat litter. The composition is formed by mixing a filler with a de-dusting agent and spraying an aqueous slurry of a deodorizing agent onto the mixture. The mixture is then added to a water absorbing material such as clay to uniformly mix the deodorizing agent with the water absorbing material.