- Faraday cage
The physicist Michael Faraday discovered that the inside of an electrical conductor has no charge. A metal container thus works like a shield, so that RFID transponders in metal containers cannot be read.
- Far and near field
A conductor loop (antenna) is surrounded by a magnetic field. This field migrates constantly into an electromagnetic field. From a specific distance, the electromagnetic field starts to come away from the antenna and diffuses as an electromagnetic wave in the space. From this calculation - calculated as Lambda/2pi - a far field is present. Inductive coupling between the reading device and the transponder is possible up to a distance of Lambda/2pi. This range is called near field.
- Filmsetting code
Barcodes in all densities can be produced in filmsetting.
- Final adhesion
Adhesive strength which an adhesive layer of a label finally achieves to the surface of a body under defined practical conditions.
- First reading rate
Number of correct readings in the first reading attempt, divided by the number of reading attempts.
Name for a non-volatile rewritable storage medium.
- Flat antenna
Flat, conducting antenna, usually made from a metal plate or film.
Name for the position of the sheet on the printing table. 100% flatness: the sheet is lying evenly on the substrate, all points in the material surface are on one level.
- Flexo printing
Formerly known as aniline printing, a rotation relief printing process which uses flexible printing plates and thin, fast-drying printing inks.
In fluorescence, the light is radiated between 10 to the power of minus 7 and 70 to the power of minus ten seconds
- Freezer adhesive
Adhesive which guarantees good adhesion for a self-adhesive label on a cold substrate
Frequency (f) refers to the number of events (n) in a specific time period (T), e.g. the number of oscillations in a radio signal per second. Frequency is measured in Hertz.
Accomplishment of physical supplies
- Fulltone colours
Special or spot colours which are not created from a four-colour scale (CMYK) and are compiled in a colour chart such as Pantone, HKS or RAL.