Papermaking
technology
About papermaking
The papermaking method is a method of manufacturing nonwoven fabrics. There are two types of manufacturing methods for nonwoven fabrics: dry and wet . The papermaking method is a “wet” method.
(Non-woven fabrics are fabric sheets that bonded or entangled by thermo-mechanical or chemical action without weaving fibers.)
Wet nonwoven fabric
Fibers are mixed with water, and the slurry is passed through a net to separate fibers from the water, and the fibers are dried to form a sheet.
It is the same manufacturing method as papermaking.
Dry nonwoven fabric
It is a manufacturing method that disperses the fibers in the air and laminates the fibers.
Compared to the wet method, uniformity is difficult because the layers are laminated in the air.
Wet papermaking method
Strength of papermaking
FEATURE
FEATURE 01 High dispersibility and stable orientation
High dispersibility and stable orientation are possible even with long fibers.
→ Stable high strength is possible.
fiber divide uniformly
in the sheet after papermaking
FEATURE 02 Highly flexible formulation
A high degree of freedom in composition is possible.
→ It is possible to develop to various functional of materials.
Products using papermaking
PRODUCT
Automotive engine
Resin balance shaft gear
About the balance shaft gear
It is used as a balance shaft drive gear that suppresses the vibration of in-line 4-cylinder automobile engines.
Gear rattling noise is greatly reduced by means of resinification.
Manufacturing process
of balance shaft gear
Intermediate material sheet is manufactured by uniformly dispersing powdered phenolic resin and high-strength, high-vibration-damping aramid fiber using a papermaking method.
The intermediate material is punched into a gear shape, dried, laminated, heat-pressed, then finished.
Achieves uniform high strength
using recycled carbon fiber
CFRP products
Achieved the NEDO Energy Conservation Technology Development Award
Manufacturing process of CFRP parts
Intermediate material sheet is manufactured by uniformly dispersing powdered phenolic resin and high-strength,
high-vibration-damping aramid fiber using a papermaking method.
The intermediate material is punched into a gear shape, dried, laminated, heat-pressed, then finished.
Characteristics of CFRP products
Achieving high strength and significant weight reduction
Contributes to low LCA
Reduce environmental loading during manufacturing
by using recycled carbon fiber
LCA (Life Cycle Assessment)
A method for quantitatively evaluating the environmental impact of all processes for a product from mining
of raw materials to transportation, processing, manufacturing, use, and disposal.
Other characteristics of CFRP
-
Feature03
High electromagnetic
wave
shielding -
Feature04
High vibration damping
-
Feature05
Hard to thermally expansion
-
Feature06
Excellent corrosion resistance
Excellent corrosion
resistance
GASKETS DEVEROPMENT
TECHNOLOGY
Nippon Gasket develops gaskets with the highest sealing technology in the industry.
Gasket developmenttechnology
CONTACT
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