Plastic film packaging is a thin layer film flexible material usually polyethylene, polyester, or polypropylene used to wrap, seal, and protect products. It serves as a durable, waterproof, and air-tight barrier for food, industrial, and consumer goods. Common examples include shrink wrap, bubble wrap, plastic bags, food wraps, green house film, mulch film for agriculture.
BioGENIE® for Film grades
|
Property |
Typical Specification Range |
Importance for Film |
|
Carrier Resin |
Matched to base polymer (e.g., PE carrier for PE film, PP carrier for PP film) |
Ensures complete compatibility and dispersion in the final product. |
|
Dosage (Let-down Ratio) |
Typically 1%, depending on required biodegradable rate |
Dictates cost-effectiveness and processing parameters. |
|
Physical Form |
Free-flowing pellets, dust-free processing |
Ensures ease of handling, clean processing, and consistent automated dosing. |
|
Melt Flow Index (MFI) |
Compatible with the base resin MFI |
Guarantees proper dispersion within the extruder without causing processing issues. |
|
Moisture Content |
Very low (typically <0.2%) |
High moisture can cause defects (fish-eyes, voids) in the film during extrusion. |
|
Particle Size Distribution |
Typically 50 – 60 microns |
Critical for maintaining film clarity and avoiding surface defects. |
|
Thermal stability |
Must withstand the high processing temperatures of film without degrading or burning |
Avoiding decompose additive during extrusion. |