Resin Particle Production via Ice-Matrix Fiber Cutting
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Solution Overview
Problem
Existing methods for producing resin particles with micron-scale fiber lengths suffer from high production costs, low efficiency, significant fiber length variation, and erroneous cutting, leading to poor particle size distribution and shape uniformity.
Innovation Solution
A method involving the direct joining of thermoplastic resin fibers using a heat press to form a fiber aggregate, which is then cut into resin particles, ensuring a high securing force without the need for binders and minimizing impurities, while maintaining a uniform shape and size distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If conventional cutting methods are used to obtain micron-scale fibers, then fiber length can be reduced, but fiber length variation and erroneous cutting increase significantly
Solution Approach 1:
The patent utilizes the phase transition of water from liquid to solid (freezing) to secure the fiber bundle. By immersing the fiber bundle in water and freezing it, the water forms an ice matrix that firmly holds the fibers in place, preventing movement and ensuring uniform cutting. This phase transition provides the necessary securing force without requiring additional binding materials.
Solution Approach 2:
The patent introduces water/ice as an intermediary substance to secure the fiber bundle during cutting. The water acts as a mediator between the cutting device and the fibers, providing a stable matrix that enables precise cutting while minimizing fiber length variation and erroneous cutting. The intermediary is easily removable after cutting, leaving clean fiber ends.
2Reliability
If binding materials are used to secure fiber bundles, then cutting stability improves, but production cost increases and impurities are introduced
Solution Approach 1:
The patent uses water/ice as a temporary intermediary that provides cutting stability without the cost and impurity issues of conventional binding materials. The water/ice matrix is inexpensive, easily applied, and leaves no harmful residues after the cutting process, as it can be simply melted and removed.
Solution Approach 2:
The patent employs water/ice as a disposable securing medium that is cheap, easily applied, and discarded after use. The water freezes to provide stability during cutting, then melts away without requiring complex removal processes, making it an economical and clean alternative to permanent binding materials.
3Ease of operation
If conventional securing methods are used, then fiber bundles can be held, but production efficiency decreases and particle size distribution broadens
Solution Approach 1:
The patent utilizes the rapid phase transition of water to ice to quickly secure fiber bundles for cutting. This phase change occurs rapidly and provides immediate securing force, enabling high-speed cutting operations without compromising bundle stability, thereby improving production efficiency while maintaining tight particle size distribution.
Solution Approach 2:
The water/ice intermediary enables efficient securing of fiber bundles with minimal processing time. The water can be quickly applied and frozen, providing a stable matrix for high-speed cutting, and then easily removed by melting, allowing continuous production operations with tight quality control.
4Manufacturing precision
If multiple processing steps are used to achieve uniform particle size, then particle quality improves, but production complexity and cost increase
Solution Approach 1:
The patent uses the phase transition of water to ice as a simple yet effective method to secure fibers uniformly during cutting. This single phase change step provides the necessary stability to achieve uniform particle size without requiring multiple complex processing steps, maintaining manufacturing precision while simplifying the overall process.
Solution Approach 2:
The water/ice intermediary serves as a simple, single-step securing mechanism that enables uniform cutting and particle size distribution. Rather than requiring multiple complex securing and cutting steps, the water/ice matrix provides all necessary stabilization in one application, reducing process complexity while maintaining high particle quality.
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
This approach enables efficient production of resin particles with minimal fiber length variation and erroneous cutting, achieving a sharp particle size distribution and uniform shape at a lower cost, thereby improving productivity and particle quality.
Implementation Method 1
a fiber aggregate producing step of directly joining fibers containing a thermoplastic resin with each other to obtain a fiber aggregate
Data Source
AI summary
Provided is a resin particle producing method including: a fiber aggregate producing step of directly joining fibers containing a thermoplastic resin with each other to obtain a fiber aggregate; and a particle forming step of forming the fiber aggregate into particles to obtain resin particles.