S-BOPP WINDOW ENVELOPES FILMS
The first window in S-BOPP for letter envelopes is approved by Royal Mail, the most important postal services (e.g. Deutsche Post) and certified by USPS. Irplast recently joined the European Federation of Envelope Manufacturers (FEPE).
Brückner LISIM simultaneous orienting line allows us:
- to replicate the e-modulus and elongation ratios of OPS in S-BOPP.
- to purpose-develop a range of exceptionally stiff films for window envelopes.
They come in a variety of thicknesses, easy-adhesive skins and transparent/matte finishes.
- 100% ELECTRONIC OPTICAL READING
- HIGH-SPEED RUNNABILITY
- MATTE/SHINY FINISH: 2 SIDES USABLE
- LOWER SPECIFIC DENSITY THAN OPS AND PAPER
- QUICK AVAILABILITY FOR ALL SIZES
S-BOPP, with a specific density of 0.91, is the most cost-effective plastic windowing solution, compared to the 1.04 density of OPS commonly used for envelope windowing
| DESCRIPTION | PRODUCT CODE & THICKNESS |
YIELD sqm/Kg |
| Matt Low reflection layer (corona treated), two side treated S-BOPP film, high stiffness core, balanced mechanical properties, with consistent slip and antistatic properties. Glue retention on both sides. Specially developed for window envelopes application. | ENV/B 32 µm | 34.34 |
| Transparent, one side treated, high gloss plain BOPP film. Excellent optical properties, high tensile strength, good dimensional stability, good heat set property, good printability. | LHB 30 µm | 36.6 |
| Matt Low reflection layer (corona treated), two side treated S-BOPP film, high stiffness core, balanced mechanical properties, with consistent slip and antistatic properties. Glue retention on both sides. Specially developed for window envelopes application. | ENV/B 29 µm ENV/B 27 µm ENV/B 24 µm |
37.89 40.70 45.79 |
