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Toyobo's Industrial Films
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Product lineup > Biaxially oriented polyester film TOYOBO's ESTER® Film

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Biaxially oriented polyester film TOYOBO's Ester film
Feature

●Physical properties
High tensile strength and other balanced properties

●Electrical properties
Superb electrical properties with little temperature dependence

● Heat resistance
Melting point is over 260°C, with low heat shrinkage and good thermal stability

● Chemical resistance, oil resistance
Extremely good chemical resistance to all chemicals other than strong alkalis

●Waterproof, moisture resistance
Low water absorption and next to zero dimensional change due to moisture

●Transparency
Allows penetration of close to 90% of visible light; even with thickness increase there is little change in haze

●Gas barrier
Low gas permeability and high aroma retention


Applications ●Label, Laminating, Tape and Transfer foil
●Production processing and Coating

Type Applications  
Characteristics
Type Thickness(μm) Features Application Physical properties
Standard E5007 25 Enhanced Dimension Stability Transfer foil, Label and General purpose
E5107 E5007 with one side Corona treatment
E5000 38,50,75,100,125 Non treatment Label, Laminating, Coating, Production processing and General purpose
E5100 One side Corona treatment
High Transparency E5001
19,25,38,50,75,100 188,250
Non treatment
E5101 One side Corona treatment
 Other special grade , concerning the product under development please contact your sales representative.

Product data  
TOYOBO ESTER®film and other films properties (25μm)
Item
TOYOBO
ESTER®
film
OPP
ONY OPS Oriented
Rigid PVC
Poly-
carbonate
PE PVDC
Specific Gravity 1.40 0.91 1.15 1.05 1.40 1.20 0.92 1.68
Tensile strength(MPa) 216 186 216 59 98 98 20 98
Water vapor permeability(g/㎡・d)* 28 5 90 160 6 170 48 1
Oxygen permeability
(ml/㎡・d・MPa)
570 24500 290 53900 1960 46060 77420 10
water absorption(%) 0.3 0.01 10 0.05 0.05 0.2 0.02 0.1
Breakdown voltage(KV) 6.5 6.0 3.0 6.0 4.0 5.0 4.0 -
Volume resistivity(Ω・cm) 1017 1016 1015 1017 1015 1017 1017 -
Permittivity 3.2 2.1 3.8 2.5 3.0 3.0 2.3 -
Dielectric loss tangent 0.005 0.003 0.02 0.0004 0.01 0.002 0.0005 -
Melting point(℃) 260 170 223 240 180 240 135 200
Organic solvent resistance ×
Acid resistance ×
Alkali resistance
(Except for strong alkali)
×
(Any of the above data is the standard value.) *The measurement conditions were 40 ℃, 90%
 
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