Continuous Fibrous Structure Manufacturing Process
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Solution Overview
Problem
Current processes for manufacturing fibrous structures, such as soluble fibrous structures, are discontinuous, involving multiple discrete steps that interrupt the production flow, making it challenging to create a fully continuous process.
Innovation Solution
A continuous process is developed that integrates filament-forming composition making, spinning, commingling with solid additives, and collection to form a fibrous structure, allowing for uninterrupted production from making the filament-forming composition to forming the fibrous structure, which can then be converted and packaged into consumer products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a discontinuous process with multiple discrete steps is used for manufacturing fibrous structures, then each step can be optimized independently, but the overall production efficiency is reduced due to interruptions and stoppages between steps
Solution Approach 1:
The patent combines multiple discrete process steps (filament-forming composition making, spinning, commingling with solid additives, and collection) into a single continuous process. This merging eliminates the interruptions and stoppages that occur between separate steps, thereby improving production efficiency while maintaining the ability to optimize each functional aspect of the process.
Solution Approach 2:
The invention implements continuous operation throughout the fibrous structure manufacturing process, where the filament-forming composition is continuously made, spun, commingled with solid additives, and collected without interruption. This continuity ensures that productive actions occur without pause, directly addressing the productivity issue while allowing process parameters to be optimized for continuous operation.
2Manufacturing precision
If multiple discrete steps are used in the manufacturing process, then process control and quality monitoring can be performed at each step, but the overall manufacturing time increases due to sequential operations
Solution Approach 1:
By merging the filament-forming composition making, spinning, commingling, and collection steps into a continuous process, the patent eliminates the sequential time loss between operations. Quality control is maintained through continuous monitoring at each functional point within the integrated process, ensuring manufacturing precision without the time penalty of discrete step transitions.
3Productivity
If a continuous process is implemented for fibrous structure manufacturing, then production efficiency is improved by eliminating breaks, but the process complexity increases due to integration of multiple operations
Solution Approach 1:
The continuous process equipment performs multiple functions simultaneously: it makes the filament-forming composition, spins the filaments, commingles solid additives, and collects the fibrous structure in a single integrated system. This multi-functionality achieves production efficiency improvements while managing complexity through a unified process design that handles multiple operations rather than requiring separate discrete equipment for each step.
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 continuous process enhances efficiency by eliminating breaks in the production line, enabling the seamless transformation of fibrous structures into consumer products while maintaining quality and consistency.
Implementation Method 1
a spinning step for spinning the filament-forming composition to make filaments
Data Source
AI summary
A process, for example a continuous process, for making an article of manufacture containing a fibrous structure, for example a composite structure, and more particularly to a process for making an article of manufacture containing a fibrous structure, such as a soluble fibrous structure, containing soluble filaments is provided.