Porum is a polyethylene microporous film that repels water but allows air and moisture to pass through. It is used mainly in sanitary materials such as disposable diaper backing sheets.
Porum is manufactured using Tokuyama’s proprietary biaxially-stretched tubular process to ensure a soft texture and good stretchability on both a horizontal and vertical axis. Our integrated production system, ranging from granulation to film formation, printing, and slitting enables us to maintain strict quality control as well as flexibility.
We also offer Lami Porum, a laminated film that can be combined with non-woven fabrics and cloth yarns.

Product overview

Generic names	Microporous film, air-permeable film, polyethylene porous film
Product name	"Porum" "Lami Porum"
Packing / shipping method	Film rolls
Grades	Porum PH series： The Porum PH series is made using Tokuyama's proprietary biaxially-stretched tubular process to ensure a soft texture and good stretchability, as well as strong and balanced crisscross stitching that makes the material hard to tear. Porum PM series： The Porum PM series provides excellent cost performance and processability at customers' production lines. Lami Porum series
General applications	Back sheets for disposable diapers Feminine napkins desiccants packaging material

Special characteristics

• Excellent air and moisture permeability allows air, moisture, and gas to pass through
• Water resistant enough to effectively prevent water from passing through
• Irritating or harmful gases are not emitted even when burned