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Research Journals >
Indian Journal of Fibre & Textile Research (IJFTR) >
IJFTR Vol.35 [2010] >
IJFTR Vol.35(2) [June 2010] >
| Title: | Mathematical modeling of poly(ethylene terephthalate) air drawing in spunbonding nonwoven process |
| Authors: | Bo, Zhao |
| Keywords: | Air drawing
Computer modeling
Fibre
Nonwoven
Poly(ethylene terephthalate)
Spunbonding |
| Issue Date: | Jun-2010 |
| Publisher: | CSIR |
| Abstract: | The air drawing model of PET polymer in a
spunbonding process has been established to predict the fibre diameter and
analysed by introducing the numerical computation results of air-jet flow field
of the flat narrow slot passage of the aerodynamic device. The influence of
density and specific heat capacity of polymer melt at constant pressure
changing with polymer temperature on the fibre diameter have been studied. The
effects of spunbonding processing parameters and drafting assembly design
parameters on the fibre diameter have been discussed. A lower polymer
throughput rate, higher polymer melt temperature, higher primary air
temperature, higher air initial speed, medium smaller venturi gap, higher air
suction speed, higher quench pressure, smaller highness of the drafting
segment, larger length of the drafting segment, larger length of jet orifice of
the drafting assembly, and bigger highness of jet orifice of the drafting
assembly are found to be beneficial to the air drawing of spunbonding polymer
melt as they produce finer fibres. The predicted fibre diameters agree with the
experimental data. The findings show great prospects for this research in the
field of computer assisted design of spunbonding process, technology and
equipment. |
| Page(s): | 145-153 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Source: | IJFTR Vol.35(2) [June 2010]
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