PVA has found wide use in the treatment of paper surface thanks to its excellent adhesivenessand dispersibility, and will not affect the performance of other binders used in combination. Paper treated by PVA can significantly enhance its toughness, surface strength (printability) Z-axis strength (internal strength), folding resistance, abrasive resistance, smoothness, glossiness, and resistance to oil and solvent (barrier property).
Grade & Specification
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA0399 | 98.0-99.9 | 3.0-4.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0499 | 98.0-99.9 | 4.0-5.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0599 | 98.0-99.9 | 5.0-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1099 | 98.0-99.9 | 9.0-12.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1399 | 98.0-99.9 | 13.0-17.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1599 | 98.0-99.9 | 18.0-22.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1799 | 98.0-99.9 | 22.0-30.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1799S | 98.0-99.9 | 22.0-30.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0388 | 87.0-89.0 | 3.0-4.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0488 | 87.0-89.0 | 3.5-5.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0588 | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1788 | 87.0-89.0 | 20.0-26.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2088 | 87.0-89.0 | 28.0-35.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA3088 | 87.0-89.0 | 90.0-110.0 | 5.0 | 0.5 | 5-7 | 93.5 |
Packing
products in cotton-like form shall be packed with knit bags made of polypropylene and colorless medium density polythene film, with net weight of 12.5kg.
Products in granular or powdery form shall be packed with knit bags made of polypropylene and colorless medium density polythene film with net weight of 20.0kg or 25.0kg.
Storage
it shall be stored indoor in a well ventilated and dry room, Prevent exposure to dampness, sunlight and rain.
Transportation
During transportation, the products shall be moved gently to prevent damaging the packing bags. Avoid direct contact with Naked flame, when fire happens, any fire fighting equipment may be use to extinguish the fire.