Graphic Arts Industry Glossary
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Lacquer - A clear coating, usually glossy, applied to a printed sheet for protection or appearance.

Laid finish - Simulating the surface of handmade paper.

Laid paper - Paper with a pattern of a parallel lines at equal distances giving a ribbed effect.

Laminate - To cover with film, to bond or glue one surface to another.

Laminated wood - A plywood used in making steel rule dies. It is made of different ply thoroughly seasoned and glued together, usually with the grain of the different ply at right angles to prevent warping and shrinking.

Laminating - Joining of two or more layers of materials using pressure-sensitive adhesive products. The process involves nip or compression of the layers, usually through a set of rollers with controlled pressure and speed.

Lamination - Technically, the bonding of two sheets, either of the same or of differing materials. Generally meaning the application of a thin plastic film to a printed sheet for protection or appearance, creating a hard, glossy surface that is impervious to stains.

Lap - Excess paper located on the high or low follo used for binding and saddle stitching. Usually carries sig ID.

Lap Glue - Lap glue is a generic term to describe hotmelt or cold glue which is applied in the perfect binding process inside the front and back cover, near the spine, to produce a hinge effect on the covers.

Large-format camera - Camera that makes negatives 4 x 5 or larger.

Laser diemaking - To fabricate die boards automatically with laser machine.

Laser printing - Method of photocopying using a laser beam to charge the drum.

Layer Board - A paper board used to separate layers of candy in a box.

Layflat Binding - the term is widely used-and often confusingly. Lay-flat binding goes back to 1980 when a publisher in Finland decided to attack the problem of "mouse-trapping" in perfect-bound paper back books. This is the familiar tendency of paperbacks to snap shut unless you "break the spine"-which of course, weakens it. The original lay-flat process-OTABIND, available at Bindagraphics-remains the best, and as a patented process, enjoys legal protection: a publisher, printer or binder not licensed by OTABIND can face legal action if they use the term in marketing their imitation process.

Layflat - See Eurobind.

Layout - The drawing or sketch of a proposed printed piece. In platemaking, a sheet indicating the settings for a step-and-repeat machine.

LCB - Limited circulation bind.

Lead - In composition, a thin strip of metal used for spacing between line of type.

Lead edge - The long horizontal piece of straight rule which is the first to cut into the material as it goes through the letterpress.

Leaders - In composition, rows of dashes or dots used to guide the eye across the page. Used in tabular work, programs, table of contents, etc.

Leading edge - Edge of a sheet of paper that enters the press first, also known as the Gripper edge.

Leaves - Pages of a book.

Ledger paper - A grade of business paper generally used for keeping records. It is subjected to appreciable wear and requires a high degree of durability and permanence.

Legible - Characteristic of copy having sufficient contrast with the paper on which it appears and determined by such features as typeface, size, leading, and quality of printing.

Letterpress - A relief printing method which uses plates that raise the printing areas above the non-pronting areas. Rollers are used to apply ink to only the raised areas, and the inked image is transferred directly to the paper or similar surface.

Letterset (dry offset) - The printing process which uses a blanket (like conventional offset) for transferring the image from plate to paper. Unlike lithography, it uses a relief plate and requires no dampening system.

Lettershop - Alternate term for Mailing service.

Letterspacing - The placing of additional space between each letter of a word.

Library - Film file storage room where worked up film and sample books are recorded and organized for future use.

Library binding - A standard of binding which is normally higher than publisher's binding, edition binding, library edition, and others not in accordance with this standard.

Light table - Translucent glass surface lit from below, used by production artists and strippers.

Light weight paper - Book grade paper of basis weight 40# or less with high opacity for its weight.

Lightness - The attribute of an object by which the object appears to reflect more or less of the incident light.

Lignon - A natural glue which holds wood fibers together.

Limited prep - Preparing journal volumes before being sent to the bookbindery (by collating, removing unwanted covers or ads, checking for foldouts and placing pages in desired order).

Line art - Copy to be reproduced consisting of solid colored images.

Line conversion screen - Piece of film containing line patterns that break light into those patterns as it passes through.

Line copy - Type, rules, clip art, and other images that are high contrast.

Line negative - High contrast negative usually made from line copy.

Linen tester - Alternate term for Graphic arts magnifier.

Lines Per Inch (LPI) - Literally, the number of lines in an inch used as a method of measurement for the resolution of an image. The greater the number of lines per inch, the higher the resolution and the sharper and greater the detail in the image. The term “Dots per Inch” or “dpi” is becoming more common. The numerical values of “Lines per Inch” and “Dots per Inch” are not interchangeable.

Lineshot - Line art to be shot (converted into a negative piece of film) on camera and stripped in, includes basic artboards, separate mechanically, line illustrations and overlays.

Linotype - Mergenthaler trade name for machine that sets lines of metal type.

Linting - An accumulation of fiber particles from the paperboard surface and/or edges.

Liquid laminate - Plastic applied to paper as a liquid, then bonded and cured into a hard, glossy finish.

Lithography (Litho, Offset) - Any process in which the printing is done from a flat plane (planographic) surface, e.g. a surface without indentations or raised portions: normally by offset, involving transferring the printing from plate to blanket.

Live area - Alternate term for Image area.

Live matter - Any printing image.

Lock up - In letterpress, to position a form in a chase for printing. Procedure of securing the wooden blocks in a die under pressure within the metal chase.

Logo - Assembly of type and art into a distinctive symbol unique to an organization, business, or product.

Logotype (or logo) - The name of a company or product in a special design used as a trademark in advertising.

Logotype - A name, symbol or trademark for a company, recognizable as representing only that company. Also referred to as a logo.

Long grain - Alternate term for Grain long (paper).

Long ink - An ink that has good flow on ink rollers of a press. If the ink is too long, it breaks up into filaments on the press, and causes flying as on a newspaper press.

Loop stitch - To saddle stitch with staples that are also loops which slip over rings of binders.

Loop stitching - Loop stitching allows a booklet to be saddle stitched and inserted into a loose-leaf binder without drilling.

Loose proof - Proof of one color separation.

Loose-leaf Binding - A means of mechanical binding in which pages are bound together by means of inserting the metal rings or poles of a three-hole binder into drilled or punched holes along the binding edge of the pages.

Loupe - A magnifying glass used to review a printed image, plate and position film.

Low folio - All pages falling in front of the center spread of a form.

Lower case - The small letters in type, as distinguished from the capital letters.

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