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 Polyester Films
 

ISTOTROPIC FILM

This  IT  type polyester film is a transparent film. This film shows excellent isotropic characteristics, that is, high and balanced mechanical properties and  low thermal shrinkage in all directions. The film is best suited for lidding application.  This film is also available with corona or chemical  treatment on one side.

ITCI   - corona wound–in                                                                   ITCO    -  corona  wound-out  

                      IT LI  - chemical wound–in                                                               IT LO    - chemical  wound-out               

TECHNICAL   DATA

Type -  I T    
PROPERTY

TEST METHOD

UNIT NOMINAL VALUE
PHYSICAL
Yield Internal micron 12
Thickness Internal m2/kg 59.5
Tensile Strength at Break       MD / TD ASTM-D-882 kg/cm2 1900 /  2200
+ 45 o /  - 45 o 2500 / 2200
Ratio  + 45 o / - 45 o 0.6 - 1.4
Elongation at Break                MD /  TD ASTM-D-882 % 100 / 90
+ 45 o / - 45 o 100 / 90
   Ratio  + 45 o / - 45 o 0.6 - 1.4
Ratio  T.S. + 45 o / Elongation + 45 o - < 0.35
T.S. - 45 o / Elongation  - 45 o < 0.35
Co-efficient of Friction                    Static ASTM-D-1894 0.50
                                                   Kinetic 0.45
Surface Tension  -- Corona Treated ASTM-D-2578 Dyne/cm 50
                        -- Chemical Treated 56
OPTICAL
Haze ASTM-D-1003 % 4.0
Transmittance ASTM-D-1003 % 85
THERMAL
Shrinkage at 150 o C/30       MD ASTM-D-1204 < 1.5
minutes                             TD < 1.0
BARRIER PROPERTIES
MVTR        (380C/ 90% RH/ 24 hrs) ASTM-F-372 g/m2 45
O2R           (250C/  75% RH/ 24 hrs/ 1Atm.) ASTM-D-1434 cc/m2 110
       

MD-- Machine Direction   ; TD–Transverse Direction

FDA Status : This UmaPET  polyester film complies with U.S. Food and Drug Administration food additive regulation 21 CFR 177.1630, sections (f)  and (g).

UmaPETÒis the registered trademark for Ester Industries’ bi-axially oriented  polyester films based on polyethylene  terephthalate

The information contained herein is to be used only as a guide for using UmaPET film. The specifications and characteristics mentioned are based on reliable test procedures. Users of this film should make independent assessment of its suitability to their end use. Ester Industries does not offer any guarantee on the results and does not accept any liability arising out of the use of the information contained herein.

 
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under the appropriate Statutes. © Copyrights 2002, All Rights Reserved, Ester Industries Ltd.

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