A Plain-English Reading of the Toray Lumirror E63 PET Film Datasheet: Thickness, Strength, Whiteness, and Anti-Static Properties
This guide explains the Toray Lumirror E63 PET Film technical data sheet (TDS) in plain English, so buyers and engineers can read the figures with confidence.
What Is Toray Lumirror E63 PET Film?
Toray Lumirror E63 PET Film is a white polyester (PET) film from Toray’s Lumirror range. According to its datasheet, it is a pretreated type of Lumirror E60 designed for good adhesion and anti-static performance, with one side treated. It is a low density white film offered in thicknesses from 50 to 75 um, and the datasheet lists its application as a print receiver.
Lumirror E63 at a Glance
- Type: pretreated, low density white film, one side treated
- Available thickness: 50 to 75 um (the datasheet gives data for 50 um and 75 um)
- Listed application: print receiver
- Listed properties: low density and light weight, softness, good adhesion, anti-static, white
Key Properties from the Datasheet
Values below are shown as 50 um / 75 um. MD is the machine direction (the running direction of the film) and TD is the transverse direction.
- Tensile strength, MD: 139 / 138 MPa. TD: 137 / 131 MPa (ASTM D882)
- Elongation at break, MD: 110 / 107 percent. TD: 88 / 89 percent (ASTM D882)
- Tensile modulus, MD: 3.10 / 3.19 GPa. TD: 3.05 / 3.19 GPa (ASTM D882)
- Thermal shrinkage at 150°C for 30 minutes, MD: 1.2 / 1.1 percent. TD: 0.2 / 0.1 percent (ASTM D1204)
- Whiteness index: 75.3 / 77.3 percent (ASTM E313)
- Surface gloss ratio: 24.4 / 27.5 percent (ASTM D2457)
- Optical density: 0.76 / 0.93 (JIS K7605)
- Density: 1.00 / 1.00 g/cm3
- Surface resistivity: 3.80E+11 / 5.00E+11 ohm per square (ASTM D257)
What the Numbers Mean
Strength and stretch. Tensile strength shows how much pulling force the film withstands before it breaks. Lumirror E63 lists 131 to 139 MPa in both directions, so strength is fairly even across the film. Elongation at break shows how far the film stretches before breaking: about 107 to 110 percent in MD and 88 to 89 percent in TD, so it stretches a little more along the running direction.
Stiffness. Tensile modulus measures stiffness. A higher value means the film resists bending and stretching more. The datasheet lists about 3.05 to 3.19 GPa, which is close between the two thicknesses and between the two directions.
Heat stability. After 30 minutes at 150°C, the film shrinks about 1.1 to 1.2 percent in MD and 0.1 to 0.2 percent in TD. Lower shrinkage means better dimensional stability, which matters if your process includes drying, lamination, or other heat steps. Note that MD shrinkage is higher than TD.
Appearance. A higher whiteness index means a whiter film. The 75 um grade (77.3) reads slightly higher than the 50 um grade (75.3). The gloss ratio of 24.4 to 27.5 percent describes how shiny the surface is. Optical density reflects how much light the film blocks, and the thicker 75 um grade is higher (0.93 versus 0.76), as you would expect from a thicker white film.
Density. At 1.00 g/cm3, Lumirror E63 is lighter per unit volume than conventional solid PET film, which is commonly quoted at around 1.4 g/cm3 (a general reference, not from this datasheet). This matches the datasheet description of low density and light weight.
Anti-static and adhesion. The datasheet lists surface resistivity of 3.8 x 1011 and 5.0 x 1011 ohm per square. Surface resistivity shows how easily static charge can spread across a surface, and a lower number means charge dissipates more easily. The datasheet does not state a pass or fail level, and it does not give adhesion test values for the pretreated side.
Typical Application: Print Receiver
The datasheet lists print receiver as the application. In general terms, a white base gives a clear background for printed images, the treated side helps inks or coatings anchor, and anti-static behavior can help with sheet handling. This is our reading of the listed properties, so confirm suitability with your own printing process and test samples.
Points to Keep in Mind When Reading the TDS
- The values are typical data under specific test conditions and are not intended as limiting specifications, as the datasheet itself notes.
- The datasheet does not say which side the surface resistivity was measured on, and it does not list thickness tolerance or surface tension.
- The 50 um and 75 um grades behave differently, so compare like with like.
- Always test samples on your own line before placing a bulk order.
Frequently Asked Questions
What is Toray Lumirror E63 PET Film?
It is a pretreated, low density white PET film with one treated side, described in its datasheet as a type of Lumirror E60 for good adhesion and anti-static properties.
What thicknesses does the Lumirror E63 datasheet cover?
The available thickness is 50 to 75 um, and the datasheet gives data for the 50 um and 75 um grades.
What application does the datasheet list?
Print receiver.
Are the datasheet values guaranteed?
No. They are typical values under specific test conditions, not limiting specifications.
Can I buy Toray Lumirror E63 PET Film from Jinlu Film?
Yes. Jinlu Film supplies Toray Lumirror E63 PET Film. If you prefer a comparable-specification alternative, including domestic options, we can offer those as well, together with datasheets and samples so you can test them on your own line.
Looking for Toray Lumirror E63 PET Film?
Jinlu Film supplies Toray Lumirror E63 PET Film, along with comparable white PET film grades, including domestic alternatives, for printing and similar applications. Tell us your application, thickness, and surface needs, and contact us for technical data, samples, or a factory quote.
Source: Toray’s publicly available Lumirror E63 technical data sheet (typical values). Please refer to the latest official version. Lumirror, Toray, and related names are trademarks of their respective owners. This article is an independent explanation for reference only.
