Stretch hood film is typically made from polyethylene (PE), a versatile thermoplastic polymer. The primary raw material for stretch hood film production is polyethylene resin, but the manufacturing process may involve additives and other materials to achieve specific film characteristics.Customized stretch hood films in rolls, pallet covers, Here’s an overview of the raw materials used in stretch hood film production:
Table of Contents
Polyethylene Resin (PE):
Low-Density Polyethylene (LDPE):
LDPE is often used for stretch hood films. It offers good stretchability and excellent optical properties.
Linear Low-Density Polyethylene (LLDPE):
LLDPE is known for its higher tear resistance, puncture resistance, and improved strength compared to LDPE. It’s commonly used for heavy-duty stretch hood films.
High-Density Polyethylene (HDPE):
HDPE can be used for specialized applications, providing increased stiffness and puncture resistance.
Additives:
Stabilizers:
Additives like antioxidants and UV stabilizers are incorporated to protect the film from environmental factors and degradation. Customized stretch hood films in rolls, pallet covers.
Slip Agents:
Slip agents are used to reduce the coefficient of friction on the film surface, making it easier to handle during packaging processes.
Anti-Block Agents:
These additives prevent film layers from sticking together when rolled up, ensuring easy unwinding during application.
Colorants:
Pigments or dyes are added for color-coding or branding purposes. Customized stretch hood films in rolls, pallet covers.
Processing Aids:
These aid in the manufacturing process, improving film extrusion and processing properties.
Blending and Compounding:
Some stretch hood films may be produced by blending different types of polyethylene resins (e.g., LDPE and LLDPE) or incorporating other materials like metallocene polyethylene (mPE) to achieve specific performance characteristics, such as improved strength or stretchability.
Recycled Material:
Manufacturers may use recycled polyethylene resin as a raw material or incorporate post-consumer or post-industrial recycled content to promote sustainability and reduce the environmental impact of film production. Customized stretch hood films in rolls, pallet covers.
Bio-Based Materials:
In some cases, manufacturers may explore the use of bio-based or bio-derived polyethylene materials as a more environmentally friendly alternative to conventional fossil-fuel-derived resins.