Overwrap Film High Shrink, Tight Wrap
HST-0 (HSR) TW-I
Structure
Hot slip modified, HS OPP layer
Additive modified OPP layer
Hot slip modified, HS layer
Description
It is a co-extruded, both side untreated and heat sealable Bi-axially Oriented Polypropylene film.
Features
- Excellent transparency and clarity
- Excellent machinability on high-speed machines
- High shrinkage for tight packs
- High moisture barrier
- Good stiffness
Applications
- Cigarette over-wrap
- General over-wrap
Typical values
| Properties | Ref. | Units | ASTM#/ Test Method | HST-0 (HSR) TW-I |
|---|
| Physical Data | ||||||
| Average Thickness | Micron | D-374-C | 20 | 22 | 25 | |
| Gauge | 80 | 88 | 100 | |||
| Mils | 0.8 | 0.9 | 1.0 | |||
| Thickness Variation | %(±) | 3 | ||||
| Density | g/cc | 0.905 | ||||
| Average substance | g/m² | 18.1 | 19.9 | 22.6 | ||
| Kinetic COF | F-F | D-1894 | <0.25 | |||
| Yield | m²/Kg | D-4321 | 55.2 | 50.2 | 44.1 | |
| in²/lb | 38809 | 35294 | 31005 | |||
| Optical Data | ||||||
| Gloss (45⁰) | Gardner | D-2457 | > 90 | |||
| Haze | % | D-1003 | < 2.2 | |||
| Mechanical Data | ||||||
| Tensile Strength | MD | kg/cm² | D-882 | 1300 - 1600 | ||
| TD | 2400 - 2800 | |||||
| Elongation | MD | % | D-882 | 130 - 180 | ||
| TD | 30 - 70 | |||||
| Thermal Data | ||||||
| Shrinkage (120⁰C/248 ⁰F,5 min) | MD | % | D-1204 | 7.0 – 9.0 | ||
| TD | 8.0 – 10.0 | |||||
| Seal Initiation Temp. | °C/°F | CTM | 105/221 | |||
| Heat Seal Strength | g/²5mm | CTM | 425 | |||
| Barrier Data | ||||||
| MVTR (38⁰C, 90% RH) | g/m²/day | F-1249 | 5.0 | 5.0 | 4.5 | |
| OTR (23⁰C, 0% RH) | cc/m²/day | D-3985 | 1600 | 1600 | 1500 | |
| CTM : Cosmo Test Method | MD : Machine Direction | TD : Transverse Direction |
| Disclaimer : The information provided above is based on COSMO FILMS LTD's conclusive tests, which are indicative only and provided as guidelines.They do not constitute a guarantee of any specific product attributes or the suitability of products for specific applications | ||
Updation Date : 2026-Apr-29