Pre-stretched stretch film is available in different roll formats. Sinyar Pack offers a loose-wound option and a tightly wound option. The winding style changes the roll’s appearance and packing characteristics, so buyers should compare the complete film specification rather than judging a roll by appearance alone.
What is loose-wound pre-stretched film?
The loose-wound option is rewound on a rewinding machine. Its common width is 425–430 mm, and the usual thickness range provided for this option is 6–8 μm. These are common specifications, not a substitute for confirming the exact order specification.
What is tightly wound pre-stretched film?
The tightly wound option is wound directly on the production line. Its common width is 500 mm. The thickness and other roll details should be confirmed for the selected product before ordering.
Key differences at a glance
| Item | Loose-wound option | Tightly wound option |
|---|---|---|
| Winding route | Rewound on a rewinding machine | Wound directly on the production line |
| Common width | 425–430 mm | 500 mm |
| Common thickness | 6–8 μm | Confirm for the selected SKU |
| Other details to confirm | Roll length or net film weight, core and packing | Thickness, roll length or net film weight, core and packing |
How should buyers choose?
Start with the dispenser or wrapping process, the required film width and thickness, and the amount of film needed per roll. Then confirm core dimensions, carton configuration and storage or transport constraints. Some buyers prefer the loose-wound format, while others prefer the tightly wound format; the suitable choice depends on their handling and purchasing requirements.
A compact-looking roll is not enough to conclude that it saves space or contains the same amount of usable film. For a meaningful comparison, measure roll and carton dimensions and compare rolls with the same confirmed net film quantity and specification.
Information to include in a quotation request
- Preferred roll format: loose-wound or tightly wound
- Film width and thickness
- Roll length or net film weight
- Core dimensions
- Quantity, packing requirements and destination
Explore our stretch film products. Share your requirements with Sinyar Pack to confirm the available specification.
Frequently asked questions
Is loose-wound film bubble wrap?
No. “Loose-wound” describes how the film is wound into a roll. It is not bubble wrap.
Is 6–8 μm the thickness for both formats?
The 6–8 μm range is the common information supplied for the loose-wound option. Confirm the tightly wound product’s thickness for the selected SKU.
Which format uses less warehouse space?
That cannot be determined from appearance alone. Compare measured roll and carton dimensions for the same confirmed net film quantity.
Specifications above are common reference points and must be confirmed for each order.
