Corona-treated BOPP film is used when a converter needs a surface that can be wetted more effectively by a suitable ink, coating or adhesive. The treatment modifies the film surface without changing t
Corona-treated BOPP film is used when a converter needs a surface that can be wetted more effectively by a suitable ink, coating or adhesive. The treatment modifies the film surface without changing the basic identity of the BOPP substrate. For buyers, the key question is not simply whether the roll is treated, but whether the correct side and treatment condition match the planned converting proce
Why BOPP Film Receives Corona Treatment
Untreated polypropylene surfaces can be difficult for some liquids to wet evenly. Corona treatment uses a controlled electrical discharge to alter the outermost surface and increase its surface ene…
Single Side and Double Side Treatment
Some projects require one treated side, while others need both sides prepared for separate operations. The order should identify the required treatment configuration and the roll orientation.
Confirming the Treated Side
Before loading the roll, operators should check the label, winding direction and intended treatment side. If a roll has been slit, rewound or partially used, the identification must remain with the…
Printing Considerations
Printing trials should use the intended ink system, press conditions and drying or curing process. Observe wetting, pinholes, color uniformity, blocking and adhesion after the ink has developed as…
Using Trials to Set an Acceptance Standard
Run enough material to reach stable production conditions and keep samples from the beginning, middle and end of the trial. Record the side printed, surface test result and key press settings.
Lamination and Coating Considerations
For lamination or coating, confirm which surface receives the adhesive or coating and whether the selected chemistry is compatible with the film grade. Coat weight, mixing, curing, line speed, temp…
Storage and Treatment Retention
Keep film in its original protective packaging and store it according to the supplier’s instructions. Dust, moisture, oils, excessive heat and direct sunlight can affect the surface or create separ…
Troubleshooting Poor Wetting or Adhesion
Start with facts that can be checked: roll identity, treatment side, surface test, contamination, ink or adhesive batch, mix ratio, machine settings and curing history. Compare an affected sample w…
Rechecking Before Critical Production
For critical work, verify a clean area from the roll that will enter production. If the surface test or print trial falls outside the agreed standard, isolate the roll and confirm the next action b…
Key takeaway
Shandong Shunzhan New Materials Co., Ltd. supports BOPP film projects for printing, lamination and packaging applications. To discuss corona-treated film, provide the end use, process materials, treatment configuration and roll dimensions. The available grade, sample plan, minimum quantity, lead time, packaging and documentation should be confirmed before the order is finalized.
Request free film samples or send your specification — we reply with a quotation within 24 hours.
Frequently Asked Questions
Why BOPP Film Receives Corona Treatment?
Untreated polypropylene surfaces can be difficult for some liquids to wet evenly. Corona treatment uses a controlled electrical discharge to alter the outermost surface and increase its surface energy.
What buyers should know about single Side and Double Side Treatment
Some projects require one treated side, while others need both sides prepared for separate operations. The order should identify the required treatment configuration and the roll orientation.
What buyers should know about confirming the Treated Side
Before loading the roll, operators should check the label, winding direction and intended treatment side. If a roll has been slit, rewound or partially used, the identification must remain with the material.
Do you provide free samples?
Yes. We provide free samples of our core BOPP film grades for testing; you only cover the courier cost.
What is your MOQ and lead time?
Typically 1,000–3,000 m² per specification (about 500 kg). Standard grades usually ship within 7–15 days; samples within 1–2 working days.