In the area of textile, PVA is primarily used as raw material of vinylon fiber and warp sizingagent. When PVA is used as raw material of vinylon fiber, it imparts the fiber with properties such aswhiteness, high strength, excellent hygroscopicity, and superior resistance to abrasion, sunlightand corrosion. Meanwhile PVA fiber can be spun in pure or in blends with cotton, wool andviscose fibers. And while PVA is used as sizing agent for textile, it won’t decompose and exhibits excellentcohesion power for cotton, hemp, polyester, vinylon and viscose fibers.
Grade & Specification
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA0588 | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1088 | 87.0-89.0 | 8.0-11.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1792 | 90.0-94.0 | 20.0-30.0 | 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 |
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.