Promotional Laser Film Folatoner The Density Toner is supplied in a 400ml spray. This product is made up of a mixture of solvents and other special products which, when in contact with the toner of laser printers, improves its photographic density. Simply by spraying Density Toner on a polyester mat sheet printed with a laser printer, you get a photomechanic film suitable for transferring onto an offset plate, a silk screen, etc. With Density Toner the transfer onto photomechanic film can be voided