|
Introduction to
Polyester Chip Products
Filament Grade Full-dull Polyester Chip
|
Item |
First Grade |
Qualified Grade |
Intrinsic Viscosity
dl/g
|
0.650±0.009 |
0.646±0.025 |
Melting Poing ℃
|
≥258 |
≥257 |
Colour(b Value)
b
|
4±2 |
4±3 |
-COOH
mol/t
|
≤30 |
≤35 |
|
Water
% |
≤0.4 |
≤0.5 |
| Agglomerate Particles(≥10)
/mg |
≤3.0 |
≤6.0 |
|
DEG
% |
1.00±0.15 |
1.00±0.15 |
Tio2
%
|
2.50±0.10 |
2.50±0.15 |
|
Ash
% |
≤0.06 |
≤0.06 |
Fe
10-6
|
≤6 |
≤8 |
Irregular Chip and Powder
%
|
≤0.4 |
≤0.6 |
|
|