What sizes does Bag Making Double-Sided Heat-Sealable BOPP Film come in
2026-10-15
HUA HENG is a specialized BOPP film manufacturer with 29 years of production experience serving global flexible packaging, food bag making and daily chemical packaging clients, and its Bag Making Double-Sided Heat-Sealable BOPP Film series is engineered with co-extruded heat-seal layers on both surfaces to deliver consistent sealing performance on high-speed bag making machines. Unlike single-sided heat-sealable BOPP film, this product eliminates the need for inner layer matching during bag production, drastically improving production efficiency and reducing material waste. This article breaks down industry standard size specifications, practical production data and application selection guidelines to help packaging processors pick the most suitable size parameters for their specific bag making projects.
Standard Size Specifications and Application Matching
The Bag Making Double-Sided Heat-Sealable BOPP Film follows the widely adopted flexible packaging industry size standards, with three mainstream thickness and width combinations covering most common commercial bag making scenarios. The table below lists core parameters and typical use cases:
| Thickness Range | Slitting Width Range | Heat Seal Strength | Typical Application Scenario |
|---|---|---|---|
| 18-22μm | 200-600mm | ≥25N/15mm | Small snack bags, candy wrappers |
| 25-30μm | 600-1200mm | ≥32N/15mm | Mid-sized food packaging bags, bread bags |
| 35-45μm | 1200-2200mm | ≥40N/15mm | Heavy-duty shopping bags, large rice packaging bags |
Key Size Selection Guidelines
- High-speed bag making line matching: For 150m/min and above high-speed automatic bag making machines, select the full width master roll of Bag Making Double-Sided Heat-Sealable BOPP Film that matches the unwinding width of the equipment, to avoid extra secondary slitting steps that introduce edge quality defects.
- Thickness and load matching: For packaging bags that need to hold heavy items over 2kg, choose the 35-45μm thick version to ensure sufficient tensile strength and puncture resistance, preventing bag breakage during transportation and display.
- Custom size support: HUA HENG can provide non-standard customized thickness ranging from 15μm to 50μm and special slitting width according to specific bag design requirements, to minimize leftover material waste for small and medium batch production.
- Tolerance control: All finished products maintain thickness tolerance within ±2μm and width tolerance within ±0.5mm, ensuring uniform heat sealing performance across the entire roll and avoiding inconsistent sealing quality along the material direction.
Bag Making Double-Sided Heat-Sealable BOPP Film FAQ
Q: What problem will happen if I select a 20μm thin version to produce 3kg heavy-duty shopping bags?
A: The thin film will lack sufficient tensile and tear strength, and the heat seal edge will not be able to withstand the heavy load tension, leading to seal cracking or bag body tearing during bag making, filling and subsequent transportation, resulting in high product defect rates.
Q: Can the 25μm Bag Making Double-Sided Heat-Sealable BOPP Film be slit to a narrow 100mm width for small sachet production?
A: Yes. The film uses high-performance co-extrusion heat-seal layers with excellent dimensional stability after slitting. The narrow slit edge will not have curling or heat-seal layer peeling issues, and can run stably on small sachet making machines without jamming.
Q: What is the maximum roll length for the master roll of this film to fit standard bag making equipment?
A: The standard master roll can reach a maximum roll length of 6000 meters, which reduces the frequency of roll changes on high-speed bag making lines, cuts down non-production preparation time, and effectively improves the overall production efficiency of the bag making workshop.
As a BOPP film manufacturer with full food contact safety certification and strict quality control system, HUA HENG provides every roll of Bag Making Double-Sided Heat-Sealable BOPP Film with complete inspection reports, stable size tolerance control and free sample testing support. Contact us today to share your bag size, production line parameters and application scenario details, and our technical team will provide a free customized size recommendation, performance test data and competitive bulk order quotation to perfectly match your bag making production needs.
