Device for manufacturing particulate-containing article and method for manufacturing particulate-containing article
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Solution Overview
Problem
Existing powder-containing article manufacturing methods result in unstable powder particle positions, leading to uncomfortable user experiences and inadequate functionality, particularly in wearable articles, due to displacement of powder particles and insufficient stabilization of liquid-absorbable powders.
Innovation Solution
A manufacturing apparatus and method that involves conveying a sheet with a non-woven fabric region, raising fibers on the sheet's surface upstream of the powder supply zone, and supplying powder onto the sheet from the obverse side, allowing particles to be stably disposed within inter-fiber spaces, thereby suppressing displacement and enhancing functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If powder particles are merely placed on the surface of the sheet forming a bottom surface of the storage chamber, then the manufacturing process is simple, but the positions of the powder particles within the storage chamber are unstable
Solution Approach 1:
The fiber-raising device performs preliminary action by raising fibers on the sheet surface before powder supply. This creates a fiber structure that will hold the powder particles in stable positions, preventing displacement during subsequent handling and use of the wearable article.
Solution Approach 2:
The raised fibers act as an intermediary structure between the sheet bottom surface and the powder particles. These fibers create a three-dimensional network that mechanically interlocks with the powder particles, stabilizing their positions without requiring complex manufacturing processes.
2Ease of manufacture
If powder particles are placed on the sheet surface, then the manufacturing process is straightforward, but the functionality of the powder is not adequately fulfilled due to displacement during use
Solution Approach 1:
The fiber-raising operation is performed as a preliminary step before powder supply, creating a stable fiber architecture that ensures reliable powder particle positioning. This preliminary structural preparation guarantees that the powder will maintain its functional positions during subsequent use of the wearable article.
Solution Approach 2:
The raised fibers serve as a mediator between the sheet and powder particles, providing mechanical support and positioning. This intermediary fiber network ensures that powder particles remain in adequate positions to fulfill their intended functions, such as liquid absorbability, without displacement during wear.
3Productivity
If powder is supplied to the sheet without fiber raising, then the production efficiency is high, but the powder particles displace during use causing uncomfortable user experience
Solution Approach 1:
The fiber-raising device performs a quick preliminary action on the sheet surface before powder supply, creating a minimal but effective fiber structure that prevents powder displacement. This preliminary treatment adds minimal time to the production process while significantly improving user comfort by stabilizing powder particles.
4Stability of the object's composition
If fibers are raised before powder supply, then powder particle positions are stabilized, but the device complexity increases
Solution Approach 1:
The fiber-raising device replaces complex powder positioning mechanisms with a simpler mechanical fiber manipulation system. Instead of using complex apparatus to directly position and secure powder particles, the invention uses a fiber-raising mechanism that creates a natural holding structure, simplifying the overall device complexity while achieving stable powder positioning.
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 effectively stabilizes powder particles within the sheet, preventing displacement and ensuring adequate positioning, which enhances the functionality of the powder-containing article, particularly in applications like disposable diapers, by maintaining the powder's absorbability and preventing 'gel block' phenomena.
Implementation Method 1
a fiber-raising device which is provided on the conveyance path at a position upstream, in a conveyance direction of the sheet, of a powder supply position where the powder is supplied to the sheet, and raises fibers in at least part of the powder supply zone of the sheet, from the obverse side of the sheet
Implementation Method 2
a powder supply device which is provided on the conveyance path, and supplies the powder to at least a partial zone of the sheet, from an obverse side of the sheet
Implementation Method 3
allowing particles to be stably disposed within inter-fiber spaces, thereby suppressing displacement
Data Source
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AI summary
A sheet conveyance device 10 for conveying, along a conveyance path LI, a sheet 201 in which a given region from an obverse surface toward a reverse side thereof is composed of a non-woven fabric, and a powder supply device 40 for supplying a powder S to at least a partial zone of the sheet 201, are provided. Further, a fiber-raising device 30 for raising fibers in at least part of the powder supply zone of the sheet 201 is provided on the conveyance path L1 at a position upstream of the powder supply device 40 in a conveyance direction of the sheet 201.