Technical Specifications & Film Selection Matrix
Selecting the correct polymer blend and extrusion method determines both load stability and per-pallet wrapping costs. As a specialized wholesale supplier, we categorize our packaging films based on tensile strength, transparency, and specific end-use environments.
| Film Category |
Base Polymer |
Standard Gauge (Microns) |
Max Pre-Stretch Yield |
Optimal Application |
| Pallet Stretch Film (Machine) |
LLDPE (Cast) |
15µm - 30µm |
250% - 300% |
High-volume automated logistics |
| Pallet Stretch Film (Hand) |
LLDPE (Cast) |
12µm - 25µm |
100% - 150% |
Manual warehouse wrapping |
| POF Shrink Film |
Polyolefin |
12µm - 25µm |
N/A (High Shrink Ratio) |
Retail display, food, cosmetics |
| BOPP Lamination Film |
Polypropylene |
15µm - 40µm |
N/A (Rigid) |
Labeling, carton sealing, printing |
| Barrier Film (EVOH) |
PE/EVOH/PE |
50µm - 120µm |
N/A |
Modified atmosphere packaging (MAP) |
Extrusion Technology & Gauge Consistency
The structural integrity of packaging film relies entirely on cross-directional (CD) and machine-directional (MD) tear resistance. Inconsistent film thickness leads to web breaks on automated packing lines, causing costly downtime.
To eliminate gauge variation, we utilize 5-layer and 7-layer co-extrusion machinery equipped with automatic profile control (APC). Our cast extrusion lines maintain a strict thickness tolerance of ±3% across the entire web width. For films requiring post-extrusion printing or lamination (such as BOPP or custom-printed PE), we apply inline corona treatment, raising the surface tension to ≥38 dynes to guarantee aggressive ink and adhesive bonding.
Why Source From Our Packaging Films Factory?
Consistent industrial packaging requires a manufacturing partner with scalable output and verifiable polymer quality. We control the process from raw resin intake to final roll slitting.
Production Capacity: Our facility processes over 3,000 metric tons of polymer resin monthly, ensuring stable supply lines for high-volume wholesale contracts.
Certified Quality Control: We operate under ISO 9001:2015 standards. Every master roll undergoes dart drop impact testing and tensile testing (ASTM D882) before secondary slitting.
Food-Grade Compliance: For POF and barrier films targeting the food sector, we utilize 100% virgin resins that pass SGS testing for FDA and RoHS compliance.
Custom Converting: Our automated slitter-rewinders can output exact roll widths ranging from 50mm banding film up to 2,000mm agricultural wraps, mounted on custom 2-inch or 3-inch paper cores.
Frequently Asked Questions
Q: What is the difference in core diameter between manual hand-wrap and machine stretch film?
A: Standard manual hand-wrap rolls utilize a 2-inch (50mm) or 3-inch (76mm) paper core, depending on regional dispenser standards. Machine stretch film rolls strictly require a heavy-duty 3-inch (76mm) core to withstand the clamping force and high RPMs of automated stretch wrappers.
Q: Why should I choose POF shrink film over PVC shrink film for retail packaging?
A: POF (Polyolefin) is a cross-linked, FDA-approved material that is highly puncture-resistant and emits no toxic chlorine gas during the heat-shrinking process. PVC becomes brittle over time and changes color, whereas POF remains flexible and crystal clear, making it the superior choice for long-term retail display.
Q: Do you offer anti-static (ESD) or UV-resistant packaging films?
A: Yes. During the co-extrusion process, we can dose specific masterbatch additives. We supply UV-inhibitor stretch film (typically black or opaque) for outdoor lumber and construction material storage, as well as ESD-safe pink stretch film for electronics manufacturing.
Q: What is your Minimum Order Quantity (MOQ) for factory-direct orders?
A: For standard transparent LLDPE stretch film and POF shrink film, our MOQ is 1 metric ton (typically one 20ft container mixed load). For custom-printed films or specific UV/anti-static formulations, the MOQ is 2 metric tons to cover the resin purging and machine setup costs.
Request a Bulk Manufacturing Quote
Stabilize your procurement costs by sourcing your polymer packaging directly from the manufacturer. Submit your required film type, thickness (micron), roll width, weight per roll, and estimated monthly volume to our engineering department. We will provide a technical review and a comprehensive factory-direct pricing matrix within 24 hours. Contact us today for specification data sheets and physical sample rolls.
