Sheet Manufacturing Apparatus with Resin Layer Mixing
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Solution Overview
Problem
Existing paper recycling apparatuses are limited in their ability to change the characteristics of the paper being manufactured, as they rely solely on used papers as raw material, preventing flexibility in paper properties.
Innovation Solution
A sheet manufacturing apparatus that includes a defibrating unit, a forming unit, a first supply unit for a first paper material, and a second supply unit for a paper material with a resin layer, allowing for the mixing and processing of different paper materials to alter the characteristics of the sheet without using functional additives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only used papers are used as raw material, then the recycling process is simple, but the characteristics of the manufactured paper cannot be changed
Solution Approach 1:
The supply system is segmented into multiple independent supply units (first supply unit for used papers, second supply unit for paper materials with resin layers). Each supply unit can independently supply different types of paper materials to the defibrating unit, enabling characteristic modification while maintaining operational simplicity through modular architecture.
Solution Approach 2:
The defibrating unit is designed to universally process multiple types of paper materials (used papers and paper materials with resin layers). This multi-functionality allows the system to accept diverse raw materials and produce sheets with varying characteristics without requiring separate processing lines for each material type.
2Adaptability or versatility
If paper materials with resin layers are mixed in, then sheet characteristics can be modified, but the device complexity increases
Solution Approach 1:
The supply system is designed with dynamic controllability, where the control unit can adjust the supply amounts from different supply units based on desired sheet characteristics. This dynamic adjustment capability allows flexible modification of sheet properties (density, strength, texture) without requiring complex fixed infrastructure for each configuration.
Solution Approach 2:
The invention modifies sheet characteristics by changing the compositional parameters of the raw materials (mixing ratios of different paper materials) rather than changing the physical structure of the processing equipment. By controlling the supply amounts of paper materials with different properties, the system achieves versatile sheet characteristics through parameter adjustment rather than structural complexity.
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
Enables the modification of sheet density, strength, and texture by controlling the supply of paper materials with resin layers, enabling the production of sheets with specific properties without the need for additives.
Implementation Method 1
a defibrating unit that defibrates a raw material containing fiber in the atmosphere
Implementation Method 2
a second supply unit that supplies a second paper material to the defibrating unit, in which at least one of the first paper material and the second paper material is a paper material having a resin layer
Data Source
AI summary
A sheet manufacturing apparatus includes a defibrating unit that defibrates a raw material containing fiber in the atmosphere, a forming unit that forms a sheet by using at least a part of a defibrated material that is defibrated by the defibrating unit, a first supply unit that supplies a first paper material to the defibrating unit, and a second supply unit that supplies a second paper material to the defibrating unit. At least one of the first paper material and the second paper material is a paper material having a resin layer.