Plastic sheet packaging refers to flexible or rigid, continuous, and flat thermoplastic materials such as polyethylene (PE), polypropylene (PP), PET, or PVC some application continue with thermoforming process- used for tray, covering, wrapping, and protecting goods. Generally, it is thicker and more rigid than plastic film (often > 0.25 mm), providing superior strength for applications like industrial, food, and protective packaging.
BioGENIE® for Plastic Sheet grades
|
Property |
Typical Specification Range |
Importance for Sheet |
|
Carrier Resin |
Matched to base polymer (e.g., PE carrier for PE sheet, PP carrier for PP sheet) |
Ensures complete compatibility and dispersion in the final product. |
|
Dosage (Let-down Ratio) |
Typically 1%, depending on required biodegradable period |
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 sheet during extrusion. |
|
Particle Size Distribution |
Typically 50 – 60 microns |
Critical for maintaining sheet clarity and avoiding surface defects. |
|
Thermal stability |
Must withstand the high processing temperatures of sheet without degrading or burning |
Avoiding decompose additive during extrusion. |