English
Español
tiếng việt
русский
Exceptional water solubility with controlled dissolution rate for precise process integration.
High tensile strength and excellent film-forming capability without plasticizers.
Outstanding oxygen barrier performance under low-humidity conditions.
Biodegradable and derived from renewable resources, supporting sustainable packaging solutions.
Excellent adhesion to cellulose, paper, and polar substrates without primers.
Water-soluble packaging for agrochemicals, detergents, and industrial concentrates.
Carrier film for pharmaceutical unit-dose systems (e.g., oral dissolvable films).
Interlayer in laminated food packaging to enhance oxygen barrier properties.
Support film for transfer printing and textile digital printing processes.
Temporary protective film for precision optics and electronic components during manufacturing.
| Chemical Type | Polyvinyl alcohol (PVOH), fully hydrolyzed grade |
| Product Form | Cast, solvent-cast free-standing film |
| Appearance | Transparent, glossy, flexible sheet |
| Thickness Range | 15–100 μm (customizable) |
| Primary Applications | Water-soluble packaging, pharmaceutical films, barrier laminates |
| Key Features | High oxygen barrier, cold-water soluble, printable, sealable |
| Benefits | Reduces plastic waste, enables mono-material recyclability, supports zero-residue processing |
| Compliance | Meets FDA 21 CFR §177.1395 and EU Regulation (EC) No 1935/2004 for food contact |
Q1: What distinguishes Kuraray POVAL film from standard PVA powders or solutions?
A: Kuraray POVAL film is a solvent-cast, self-supporting polyvinyl alcohol membrane with precisely controlled thickness, surface uniformity, and moisture barrier characteristics. Unlike powders or aqueous solutions, it offers consistent dissolution kinetics, eliminates handling dust or viscosity variability, and enables precise metering in high-precision applications such as pharmaceutical blister lidding or water-soluble packaging.
Q2: Is the film compatible with common pharmaceutical and food packaging processing equipment?
A: Yes — Kuraray POVAL film is designed for compatibility with standard thermoforming, cold-forming, and laminating equipment used in blister packaging lines. Its thermal stability and dimensional integrity allow for reliable feeding, heating, and sealing without excessive shrinkage or edge curl under typical production conditions.
Q3: How does humidity affect the film’s performance during storage and use?
A: As a hygroscopic material, Kuraray POVAL film absorbs ambient moisture, which may reduce its stiffness and accelerate dissolution. For optimal handling and shelf life, it should be stored in sealed, low-humidity environments (e.g., <40% RH) and used within recommended timeframes after opening. Desiccant packaging is commonly employed for commercial shipments.
Q4: Can the film be heat-sealed to itself or other substrates?
A: Yes — Kuraray POVAL film exhibits good hot-melt adhesion to itself and select polar substrates (e.g., PET, aluminum foil, certain coated papers) when processed within its optimal thermal window. Seal strength and clarity are influenced by temperature, dwell time, and pressure; fine-tuning is recommended for each specific lamination configuration.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
