Six Inch Melt Blowing Line
UTNRL's Six Inch Meltblown line is used to screen materials.
During a run on this line, the line operator will determine a range of
values for several melt blowing parameters that produce a potentially
viable fabric. The operator, or one of UTNRL's resident engineers will also be able to
inform the customer of how their material behaves during the melt
blowing process and what affect it has on the melt blowing equipment.
This line is simplified to accommodate a great variety
of materials by omission of the usual metering pump and screenchanger. This also makes cleanup of the
line more efficient should a material degrade at high temperature.
Polymers that have been processed on this line include polyolefins, PCTA, PPS, Fluoropolymers
and LCPs.
The Six Inch Melt Blowing line makes use of a custom
built die and airknives by Accurate
Products, a custom built extruder, and custom built belt collector.
UTNRL has proven that fabric can be made on this line while processing
a material up to 450 Deg C (840 Deg F).
A video of UTNRL's Six Inch
Melt blowing line in operation at TANDEC is available here.
The video is in Windows
Media Player format and is approximately 12.4 MB in size.
UTNRL 6 Inch Melt Blowing Line Parameters
| Die Hole Diameter mm
(inches) |
Number of Holes |
Die Angle Degrees |
| 0.245 (0.010) |
120 |
30 |
| 0.356 (0.014) |
120 |
30 |
| 0.381 (0.015) |
120 |
30 |
| 0.457 (0.018) |
120 |
30 |
| 0.635 (0.025) |
120 |
30 |
| Air Gap mm (inches) |
Setback mm (inches) |
Die Angle degrees |
| 0.762 (0.030) |
0.762 (0.030) |
30 |
| 1.52 (0.060) |
1.52 (0.060) |
30 |
| 2.03 (0.080) |
2.03 (0.080) |
30 |
|
