Complaint
Due to stretching molecular orientation, so this kind of film the physical stability of the air tightness good mechanical strength, high transparency and gloss, tough wear-resisting, is currently the most widely used printing film, generally use thickness is 20 ~ 40 microns, and the most widely used for 20 microns two-way stretch polypropylene film main drawback is that poor heat sealing, so generally used as the outer membrane of composite membrane, such as transparency and polyethylene film composite moisture resistance strength and stiffness of the printing are ideal, suitable for holding food dryingAs the surface of the bidirectional tensile polypropylene film is non-polar, high crystallinity, low surface free energy, therefore, its poor printing performance, ink and adhesive adhesion is poor, before printing and composite surface treatment
| Property | ASTM Test Method | Cast, Uniaxial Orientation | Biaxial Orientation |
| Area factor in 2/lb./1 mil film | - | 30,400-31,300 | 30,600 |
| Specific gravity (g/cm3) | D1505 | 0.885-0.905 | 0.902-0.907 |
| Tensile strength (psi) | D882 | 4500-7000 | 7500-40,000 |
| Elongation (%) | D882 | 550-1000 | 352475 |
| Tear strength (g/mil propagation) | D1922 | 25 MD 600 TD | 3-10 |
| Fold endurance | D2176 | Very high | Excellent |
| 24 h % water absorption | D570 | 0.005 | 0.005 |
| Water vapor transmission rate (g/mil/100 in.2/24 h at 100°F) | E96 | 0.7 | 0.25 |
| Oxygen permeability (cm3/100 in.2/mil/24 h/atm. at 77°F) | D1434 | 150-240 | 160 |
Factory Advantages:
1) Our factory is equipped with 2 coating line,4 slitting machine and completed testing instrument.
2) Offer OEM service for global buyer.
3) Proper scale enables us to control the quality better.
4) Near to Guangzhou Port and fast delivery.
5) Directly supply with competitive price
