Recycled Fluff Pulp Water Absorber with Low Polymer Content
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The use of waste disposable diapers as a raw material for water-absorbing materials leads to excessive swelling of water-absorbent polymers, causing the materials to break and deteriorate in quality due to high adhesion, resulting in increased manufacturing costs and reduced performance.
Innovation Solution
A water-absorbing material is developed using a water-absorbent material consisting of plastic and fluff pulp, with a weight ratio of water-absorbent polymer of 3% or less, obtained by separating the polymer from sanitary articles, and a manufacturing method that includes granulating and coating steps to enhance durability and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water-absorbent polymer is used from waste sanitary articles as raw material, then manufacturing cost is reduced, but the material swells excessively and breaks causing quality deterioration
Solution Approach 1:
The patent extracts and removes the water-absorbent polymer from the waste sanitary article, separating it from the plastic and fluff pulp. This extraction eliminates the harmful swelling effect while preserving the useful water-absorbent material for other applications, and allows the remaining plastic-fluff pulp composite to be used as a stable raw material without quality deterioration.
Solution Approach 2:
The patent segments the waste sanitary article into distinct components: water-absorbent polymer, plastic, and fluff pulp. By separating these components, the invention can selectively remove the polymer that causes swelling and breaking, while utilizing the segmented plastic-fluff pulp composite as a reliable raw material for water-absorbing materials without the quality issues.
2Quantity of substance
If water-absorbent polymer adheres to raw material, then water absorbing capacity increases, but the material breaks from inside due to excessive swelling
Solution Approach 1:
The patent removes the water-absorbent polymer from adhering to the plastic-fluff pulp raw material. By extracting the polymer before processing, the invention prevents the excessive swelling that would occur during liquid absorption, thereby maintaining the structural integrity and strength of the final product while still achieving water absorbing capacity through controlled means.
Solution Approach 2:
The patent changes the parameter of water-absorbent polymer content to 3% or less of the total weight of the water-absorbing material. This parameter control prevents excessive swelling and maintains structural integrity while still providing adequate water absorbing capacity, resolving the contradiction between absorption quantity and structural strength.
3Quantity of substance
If water-absorbent polymer content is increased to improve water absorption, then absorption performance improves, but manufacturing cost increases
Solution Approach 1:
The patent optimizes the parameter of water-absorbent polymer content to 3% or less of the total weight, establishing a cost-effective threshold that provides sufficient water absorption performance without incurring excessive manufacturing costs. This parameter optimization resolves the contradiction between performance and cost by identifying the minimum effective concentration.
Solution Approach 2:
The patent creates a composite material structure combining plastic, fluff pulp, and a controlled amount of water-absorbent polymer. This composite approach allows the material to achieve adequate water absorption performance through the synergistic combination of components, reducing reliance on expensive high-polymer content while maintaining functional 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 allows for the production of water-absorbing materials at a lower cost without compromising quality, preventing excessive swelling and improving the aggregate formation and water absorbability, while reducing raw material procurement costs.
Implementation Method 1
a water absorbing material which absorbs liquid such as excrement of humans or animals
Implementation Method 2
the swell of the water-absorbent polymers excessively occurs
Data Source
AI summary
A water absorbing material contains a water-absorbent material consisting of at least one of plastic and fluff pulp that are obtained by separating a water-absorbent polymer from a sanitary article containing the plastic, the fluff pulp and the water-absorbent polymer. The weight ratio of the water-absorbent polymer adhering to the water-absorbent material with respect to the water-absorbent material is 3% or less.