# Does the breathable film support corona treatment?

> Source: https://breathablefilm.com/news/knowledge-center/breathable-film-corona-treatment-support/
> Author: kh_sales02
> Published: 2026-04-28
> Updated: 2026-08-28

## Key takeaways

- Kae Hwa applies in-line corona treatment during the casting process to raise the film's surface tension (dyne level).
- This higher surface tension lets inks bond permanently without smearing during multi-color printing and lets adhesives perform reliably in specialized lamination.
- The treatment is applied uniformly across the entire web for stable downstream converting, and the exact dyne level can be calibrated for specific applications like medical gowns or diaper backsheets.

## Frequently asked questions

### Does the breathable film support corona treatment?

Yes. Kae Hwa applies in-line corona treatment during the casting process to raise the film's surface tension (dyne level), so inks bond permanently without smearing during multi-color printing and adhesives perform reliably in specialized lamination. The treatment is applied uniformly across the entire web for stable downstream converting, and the ISO-certified facility can calibrate the exact dyne level required for specific applications like medical gowns or diaper backsheets.

### Why does raising a film's surface tension matter for printing and lamination?

Untreated film surfaces have low surface tension, which causes inks and adhesives to bead up or bond poorly, leading to smearing or delamination. Corona treatment raises the surface tension (dyne level), letting inks bond permanently and adhesives perform reliably during specialized lamination.