ECF Elemental Chlorine Free
Pulp bleached without the use of elemental chlorine. Generally this is virgin fiber
bleached with chlorine dioxide.
Eggshell Finish
Usually refers to book grades of paper that have a finish similar to the surface of an egg. A special felt is used to mark the surface before the paper is dried.
Embossed Finish
A finish imparted to paper through an embossing machine. After the paper passes through the embosser, it receives a finish on both sides.
An impression of an image in relief to achieve a raised surface; either over printing or on a blank paper (called blind embossing).
A general term for clay coating on papers. Originally designated a coated paper with a high gloss finished surface. Has come to signify any coated paper surface, regardless of gloss.
Printing by the intaglio process. Ink is applied to the paper under extreme pressure resulting in a printed surface being raised. Used for fine letterheads, wedding invitations, etc.
Equivalent Weight
The basis weight of paper expressed in terms of a different basic size.
EPS -Encapsulated PostScript
In digital prepress, a file format used to transfer graphic images within compatible applications. A file containing structured PostScript code, comments and a screen display image.
An abbreviation for the "Environmental Protection Agency".
Fan-A-Part Adhesive/Glue
Padding compound specifically designed for mated
carbonless paper.
Term expressing an individual's impression of a paper's finish and stiffness or suppleness.
Felt Finish
A finish applied to the paper at the wet end of the paper machine by using felts of a distinctive weave.
Felt Side
Top side of the paper, opposite from the wire side or underneath. The "right side of the paper".
The small strands of wood, cotton or other cellulose product that is used to make the paper.
Fine Papers
High-quality printing/writing and cover papers with excellent surface characteristics for fine printing.
The physical look and feel of the paper's surface. These include smooth, felt, laid, linen and others.
Paper processes that occur after the completion of papermaking operations, including super calendering, slitting, rewinding, sheeting, trimming, sorting, etc., prior to shipment from the facility.
Flexographic Printing
Printing from a relief image with a rubber or plastic plate. A form of letterpress printing, using synthetic or rubber relief plates, special inks, presses, and procedures.
Fluorescent Inks
Extremely brilliant inks containing fluorescent pigments.
Fluorescent Paper
Paper that has been manufactured with the addition of fluorescent dyes that give the brilliance that appears brighter when viewed in natural daylight.
A page that exceeds the dimensions of a single page. It is folded to page size and included in the book, sometimes bound in and sometimes tipped in (pasted).
Refers to the uniformity or lack of it in the distribution of the fibers when manufacturing paper; can be observed by looking through the sheet; a good formation is uniform or "Close", while a poor formation is not.
The unit on a press that contains ink to be fed to the distributing system, and the part that feeds the fountain solution to the dampening system.
Four-Color Process
The four basic colors of ink (yellow, magenta, cyan, and black), which reproduce full-color photographs or art.
The term for the section of the paper machine that is a continuous "wire" or belt screen, through which the first removal of water occurs. The point of formation.
Free Sheet
A paper that does not contain groundwood or mechanical pulp.
FPO For Position Only
In digital imaging, typically a low-resolution image positioned in a document to be replaced later with a higher resolution version of the same image.
FSC - Forest Stewardship Council
An independent, international, environmentally and socially oriented forest certification organization. It trains, accredits and monitors third-party certifiers around the world and works to establish international forest management standards.
The mixture of fiber and other materials that is blended in the water suspension, or slurry, from which paper or board is made; usually about 1% solid material with 99% or the balance being water.
Gray Component Replacement
Ghosted images are unwanted images (often faint) that appear in the printed piece.
The attribute of paper that causes it to be shiny and lustrous. The "shininess" ("glare") reflected from a surface.
The classification given to paper due to its unique characteristics, which includes brightness, opacity, cotton content, etc…
Directional alignment of fibers in a sheet of paper.
Grain Long
Term used to designate that the grain of the paper is parallel to the longest measurement of a sheet of paper. The fibers are aligned parallel to the length of the sheet.
Grain Short
Opposite of grain long. The grain of the paper runs at the right angles to the longest dimension of the sheet. Fiber alignment in grain short paper parallels the sheet's shortest dimension.
Grams Per Square Meter
The basis weight of paper stated in metric terms of grams per square meter
and expressed as g/m2.
A row of clips that holds a sheet of paper as it speeds through the press.
Gripper Margin
Unprintable back edge of a sheet of paper on which grippers bear, usually ½ inch or less.
The application of a gold or silver metallic material to one or all three sides of a trimmed book.
Gummed Paper
All papers that include an adhesive on one side of the sheet. Could be a remoistening, thermo-adhesive or pressure sensitive.
The blank space or inner margin on a press sheet from printing area to binding.
Hairline Register
Register within ± ½ row of dots.
Another term for casebound.
On a paper machine, the box that dispenses the appropriate amount of furnish (pulp) into the papermaking process.
Head To Head
An imposition that requires that pages be laid out with the top of a page (head) positioned across the top of the page (head) opposite it on the form.
Head To Tail
An imposition which requires that pages be laid out with the top of a page (head) positioned across from the bottom (tail) of the page opposite on the form.
Heat Set Ink
Inks used in high-speed web offset. They set rapidly under heat and are quickly chilled.
In offset, spots or imperfections in the printed image traceable to such things as dirt on the press, dried ink skin, paper particles, dust, etc…
An impression from a stamping die.
A term referring to papers that retain much of the resinous ink components on the surface of the sheet rather than absorbing them into a fiber network. Papers with too much holdout cause problems with setoff.
Imitation Parchment
Paper made with irregular distribution of fibers.
Pressure of type on blanket as it comes in contact with paper.
Ink Absorption
The degree with which paper will absorb ink.
Ink Fountain
In printing presses, the device which stores and supplies ink to the inking rollers.
Ink Holdout
An important printing paper quality - the ability to keep ink on top of the paper's surface. An inked image printed on paper with a high degree of ink holdout will dry by oxidation rather than absorption.
Ink Jet Printing
In digital printing, a plateless printing system that produces images directly on paper from digital data using streams of very fine drops of dyes which are controlled by digital signals to produce images on paper.
Interleaves (slip sheets)
Paper inserted between sheets as they come off the printing press to prevent transfer of wet ink from one to the other. Also, accessory sheets between parts in a form.
To align sheets of paper into a compact pile.
Junior Carton
A package of reamed sealed, cut size paper packed 8 to 10 reams per carton.
To make a line (or lines) of text copy fit both margins exactly.
A method in composition of changing the spacing between type.
Key Plate
In color printing, the plate used as a guide for the register of other colors. It normally contains the most detail.
In artwork, an outline drawing of finished art to indicate the exact shape, position and size for such elements as halftones, line sketches, etc…
Kiss Impression
Printing performed with only slight pressure. The normal procedure for quality printing.
Partial cut through.