Specialized Review of LLDPE Stretch Film Production Technology: Comprehensive Guide to Industrial Packaging Applications and Benefits by Sadrapak Sepahan
In the modern world of logistics and supply chain, cargo safety during transportation and warehousing is a critical priority for every manufacturing unit. Stretch Film, as one of the most efficient packaging tools, is more than just a simple plastic film; it is an engineered product that, utilizing advanced polymer properties, is responsible for load stability. Sadrapak Sepahan in Isfahan, understanding the technical needs of industries, produces and supplies various stretch films based on advanced polymer technologies.
Technology Explanation: Polymer Engineering and Stretch Film Production Process
The stretch film production technology at Sadrapak Sepahan is based on using premium raw materials and precise mechanical processes. Below are the technical details of this field:
Material Fundamentals
The primary material of these films is Linear Low-Density Polyethylene (LLDPE). Unlike regular polyethylene, LLDPE has a unique molecular structure with short, branched side chains. This structure allows the film to stretch significantly without tearing. The presence of these linear bonds increases the film's "yield strength" and provides it with "elastic memory," meaning the film tends to return to its original state after being stretched, which helps hold the pallet tightly.
Cast Extrusion Technology
The films produced by this company are mainly made through the "cast" process. In this method, molten resin is discharged through a flat die onto rapidly moving chill rolls. This rapid cooling reduces polymer crystallinity and results in outstanding optical clarity. Additionally, this method allows the production of multi-layer films (3 to 5 layers), where each layer has a specific function (such as adhesion, puncture resistance, and elasticity).
Strategic Additives
Special additives are used to create cling properties, enabling the film layers to stick to each other without leaving any residue on the goods. Moreover, depending on the order, UV stabilizers are added for resistance against sunlight in outdoor warehouses.
Technological Advantages of Sadrapak Sepahan Stretch Films
Using advanced equipment in the production process has resulted in exceptional features that directly affect packaging efficiency:
Standard and High Elasticity Coefficient: These films can stretch up to 300% (and in special cases more). This means less film consumption for packaging larger volumes of goods, leading to lower final costs.
Excellent Puncture Resistance: Due to the multilayer structure, these films show high resistance against sharp edges of cartons or wooden pallets and do not tear easily.
Engineered Cling: The cling of Sadrapak films is adjusted so that layers lock well together but separate easily without noise when unpacking.
Transparency and Gloss: Cast technology ensures that barcodes and labels on products are easily visible and scannable beneath the stretch layers.
Comprehensive Guide for Choosing Stretch Type Based on Application
Correct selection of thickness (microns) and stretch type can save up to 30% in your packaging costs. Here is Sadrapak's product selection guide:
Industrial Stretch (Machine): Designed for stretch-wrap machines. These films have higher thickness and large lengths, recommended for heavy and bulky loads that require high restraining force.
Hand Wrap Stretch: Lighter films with standard width (usually 50 cm) that operators can easily wrap manually around pallets. Suitable for medium workshops and warehouses with variable output volumes.
Wrist Stretch: Narrow width (10 to 20 cm). Ideal for bundling small parts, pipes, profiles, and cables that require quick bundling.
Furniture Stretch: Thinner and more flexible films designed to protect sensitive furniture and office equipment surfaces from dust, scratches, and moisture.
How to Buy and Contact Sadrapak Sepahan
Sadrapak Sepahan, located in Isfahan's industrial hub, offers fast delivery of its products throughout Iran. We are committed to providing stable quality and competitive prices.
Technical Consultation: Our experts are ready to suggest the optimal thickness and type of stretch based on your product type and packaging method.
Daily Price Inquiry: Due to petrochemical market fluctuations, for updated price lists and order placement, you can contact our sales unit via the provided numbers.
Esfahan
