Nanofiber Overlaid Nonwovens

Hirose Paper established the process to produce nanofiber in large quantities, using Nozzle-Free Electrospinning Technology. This nanofiber is overlaid on Hirose’s Ultra-Thin Wet-Laid Nonwoven to significantly reduce its pore size.  As well as the reduction of pore size, Hirose’s overlay technique contributes to the ease of handling nanofiber with no loss of nanofiber’s excellent properties. In addition, this technique enables to offer new exciting properties which nonwovens has not ever achieved.

♣ Features of Hirose’s Nozzle-Free Electrospinning Technology
◊ Nozzle-Free, Clogging-Free, No Slowing-Dwon in Nozzle-Free Electrospinning TechnologySpinning Speed
◊ Large Spinning Area, High Production Capacity
◊ Reduction of Basis-Weight Variation
◊ Process Simplifying for Overlaying

 

♣ What is Nanofiber Overlaid Nonwoven
Nanofiber Overlaid Nonwoven is a multilayer structure made of Nanofiber and Ultra-Thin Nonwoven. Two-layer (nanofiber+polyolefin) and three-layer (polyolefin+nanofiber+polyolefin) structures are now available. As well as high production capacity, Hirose’s new technology “Electro Bubble Spinning” enabled to directly overlay nanofiber webs on Polyolefin Nonwovens. This is how Nanofiber Overlaid Nonwoven was developed. This product has a lot of great features (i.e. extremely small pore size, easy handling with no loss of nanofiber’s excellent properties). Hirose can customize this product to suit your needs. Cross Section Nanofiber Overlaid Nonwovens
♣ Physical Properties of Nanofiber Overlaid Nonwovens
Composition Base Material Basis Weight (g/m2) Thickness (µm) Density (g/cm3) Void Ratio (%) Tensile Strength (kg/15mm) MD/CD
2-Layer HOP6 8.4 24 0.350 67.1 0.663/0.348
2-Layer HOP2 4.6  15  0.307 69.7 0.280/0.290
3-Layer HOP4 12.7  26 0.488 55.0 0.825/0.721
3-Layer HOP4 18.4 27 0.681 39.0 1.400/0.691
♣ Applications for Nanofiber Overlaid Nonwovens
◊ High Performance Filter Media (Air, Liquid)  with Nanofiber Air FilterDiameter Control Technology
◊ Li-Ion Battery Separator with Polymer/Ceramic Composite Nanofiber Technology