Fujifilm Prescale pressure measurement film

Prescale pressure measurement film enables the distribution of pressure applied to web material tensioned over rollers to be examined and analysed. This pressure distribution film uses microscopic ink-filled capsules embedded in the surface of the film. The rupturing of the capsules is dependent on the amount and location of the pressure applied by the roller(s) to the film and, accordingly, to the web material. As the capsules rupture, they deposit a red trace on the film. The intensity of the trace indicates the location and distribution of the pressure applied to the web by the rollers. Therefore, the pressure film indicates if and where the roller(s) need to be corrected to improve the quality of the web material.

The film is first cut to match the width of the web and inserted between the roller(s) and the web material. Variations in pressure are evident by the trace pattern. In conjunction with a suitable scanner and Fuji analysis software, the pressurised film can also be digitised, allowing further analysis and storage of the results for quality-control purposes.

The film is available in seven pressure ranges from 0.05 to 30 MPa (1 MPa is equivalent to 10.2 kg/cm²). The precision of the measurements is typically ±10%. Operating temperature is between 20 and 35°C. Depending on the pressure rating of the film, the thickness is between 90 to 110µm.