Fujifilm Prescale Film

Fujifilm operates in many areas, including photography, optics, office and medical electronics, biotechnology and chemicals. Fujifilm provide Techni Measure with a unique film called Prescale, which is the only product in the world capable of measuring pressure. This film allows users to easily visualise pressure and pressure distribution that previously could not be observed.

Structure of Prescale

There are two types of Prescale: the two-sheet type and the mono-sheet type. The two-sheet type is composed of two polyester bases, A-Film and C-Film. A-Film is coated with a micro-encapsulated colour-forming material, and a C-Film, which is coated with a colour-developing material. The A-Film and C-Film must be positioned with the coated sides facing each other.

Mono-sheet Prescale Film: The colour-developing material is coated on a polyester base, with the micro-encapsulated colour-forming material layered on top.

How Prescale works

The microcapsules in the colour-forming layer are broken by pressure, and the colourless dye is absorbed into the developer, causing a chemical reaction to produce a red colour. The microcapsules containing the colour-forming material are adjusted to varying sizes and strengths, and are coated uniformly, producing a colour density that corresponds to the amount of pressure.

Simply place Prescale film between any two surfaces which come into contact. Varying colours of red patches will instantly appear, revealing the pressure distribution between the surfaces. The intensity of the red colours of the Prescale film is related to the amount of pressure applied to it; the more intense the colour, the greater the pressure.

There are nine different film types available, ranging from 0.006 to 300 MPa (0.87~7.3 to 43,500 psi):