FACE - The side of the envelope without the seams.
FIM - Stands for “Facing Identification Markings” - pre-printed bars on the face of the envelope, as specified by the Postal Service to expedite the automated processing of Business Reply Mail. The vertical bars are located at the top right corner of the envelope.
FILE-VELOPE - A large, open side envelope, without a flap, which has inside side seams and a short tab at its opening. Generally used as a file pocket.
FINISH - The surface properties of a paper, including smoothness, gloss, absorbing ability and texture. A paper can be smooth or textured, coated or uncoated, soft or hard. Different finishes offer different printing characteristics and their own relative advantages and disadvantages. The finish of an envelope paper contributes greatly to the emotional judgment about quality. A slightly textured surface, such as vellum or antique, can impart a sense of higher quality than the very smooth surface of a white wove.
FIRST CLASS MAILER (FCM) - Any type or size of envelope with a pre-printed diamond shaped border around its perimeter. A break in the border is left in the upper right hand comer on the face of the envelope to accommodate postage and eliminate interference of postal scanners. The words "FIRST CLASS" are normally pre-printed on the face and seal flap, but are not required. The most common color used in printing is green, but most any color can be used.
FLAPS EXTENDED - A term used to describe a request to have envelopes produced and packed with their flaps open and extended.
FLEXOGRAPHY - A form of rotary letterpress using flexible rubber or photopolymer plates. Most common type of envelope printing fast drying process, suitable for screens of 65-85 lines. Least expensive printing process mainly for line type and simple logos.
FLUSH CUT - The seal flap is removed, leaving a straight opening at the top of the envelope.
F.O.B. - Stands for “Free on Board” without charge for delivery to and placing on board a carrier at a specified point; the point at which the shipping charge is calculated.
FOIL LINED - The inside of the flap and throat are lined with a decorative foil. Used most often in greeting cards.
FOLD - Any folded edge of the envelope. Generally referred to as the side, top, or bottom fold.