Thermal paper is a paper with a thermoreactive coating. The field of application is so-called direct thermal printing. Here, using commercially available thermal printers, a black typeface develops due to the influence of warmth or heat on the print head of the device.
The quality T 90 SN is a so-called open quality (eco-quality), which has no other coating over the thermal layer. Its properties are as follows:
*) In compliance with the general storage and handling principles (see below, "General information")
| Physical properties | Value | Unit | Norm | |
| Weight | 140 ± 10 | g/m² | ISO 536 | |
| Thickness | 136 ± 10 | µm | ISO 534 | |
| Smoothness thermal side (Bekk) | ≥ 150 | s | ISO 5627 | |
| White without UV, thermal side | ≥ 85 | % | ISO 2470 | |
| Breaking load vertical / horizontal | ≥ 7,0 / ≥ 4,0 | kN/m | ISO 1924-2 | |
| Tear resistance vertical / horizontal | ≥ 850 / ≥ 900 | mN | ISO 1974 | |
| Opacity | ≥ 92 | % | ISO 2471 |
Thermal papers should be stored at a constant temperature of 23 ± 5 °C and a relative humidity of 50 ± 10 %. Exposure to strong sunlight or light as well as to chemicals should be avoided.
The above data represent typical values, but do not exempt the user from carrying out his own tests. For this purpose, we recommend carrying out suitable pressure and application tests before using the product.
*) In compliance with the general storage and handling principles (see below, "General information")
| Physical properties | Value | Value | Norm | |
| Weight | 170 ± 12 | g/m² | ISO 536 | |
| Thickness | 174 ± 12 | µm | ISO 534 | |
| Smoothness thermal side (Bekk) | ≥ 80 | s | ISO 5627 | |
| White without UV, thermal side | ≥ 85 | % | ISO 2470 | |
| Breaking load vertical / horizontal | ≥ 9,0 / ≥ 6,0 | kN/m | ISO 1924-2 | |
| Tear resistance vertical / horizontal | ≥ 1100 / ≥ 1200 | mN | ISO 1974 | |
| Opacity | ≥ 94 | % | ISO 2471 |
Thermal papers should be stored at a constant temperature of 23 ± 5 °C and a relative humidity of 50 ± 10 %. Exposure to strong sunlight or light as well as to chemicals should be avoided.
The above data represent typical values, but do not exempt the user from carrying out his own tests. For this purpose, we recommend carrying out suitable pressure and application tests before using the product.
*) In compliance with the general storage and handling principles (see below, "General information")
| Physical properties | Value | Unit | Norm | |
| Weight | 200 ± 14 | g/m² | ISO 536 | |
| Thickness | 210 ± 14 | µm | ISO 534 | |
| Smoothness thermal side (Bekk) | ≥ 60 | s | ISO 5627 | |
| White without UV, thermal side | ≥ 85 | % | ISO 2470 | |
| Breaking load vertical / horizontal | ≥ 10,7 / ≥ 7,0 | kN/m | ISO 1924-2 | |
| Tear resistance vertical / horizontal | ≥ 1400 / ≥ 1500 | mN | ISO 1974 | |
| Opacity | ≥ 96 | % |
ISO 2471 |
Thermal papers should be stored at a constant temperature of 23 ± 5 °C and a relative humidity of 50 ± 10 %. Exposure to strong sunlight or light as well as to chemicals should be avoided.
The above data represent typical values, but do not exempt the user from carrying out his own tests. For this purpose, we recommend carrying out suitable pressure and application tests before using the product.
The product consists of a wood-free base paper made of basic chlorine-free bleached pulp, which is coated on the upper side (thermoreactive side) with a coating made of a specially treated kaolin and a thermosensitive functional coating. The main components of these coatings are wax-like substances, color formers, a color developer and auxiliary substances that serve to adjust the melting point and stabilize the printed image. These substances and other inorganic pigments (e.g. calcium carbonate, also known as chalk) are part of the coating, which is applied to the base paper using suitable binders.
The thermal layer consists of a dye responsible for the black typeface, a dye developer (known as coreactant), auxiliary substances for adjusting the melting point (known as sensitizers), fillers (inorganic pigments such as chalk) and binders for fixing the thermal layer to the paper.
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