K
Abbreviation for black in four-color process printing. Hence the 'K' in CMYK.

Key
(1) The screw that controls ink flow from the ink fountain of a printing press. (2) To relate loose pieces of copy to their positions on a layout or mechanical using a system of numbers or letters. (3) Alternate term for the color black, as in 'key plate.'

Kiss Die Cut
To die cut the top layer, but not the backing layer, of self-adhesive paper. Also called face cut.

Kiss Impression
Lightest possible impression that will transfer ink to a Substrate.

Kraft Paper
Strong paper used for wrapping and to make grocery bags and large envelopes.