• SILVER
  • BLUE SATIN
  • MOSS
  • LIME SATIN
L
Label
Paper coated on one side, used for labeling applications.
Laid
Term describes the finish imparted by a dandy roll which features wires parallel to its axis that impress the paper during manufacture to produce a permanent watermark.
Laminated
Paper that is created by fusing one or more layers of paper together to the desired thickness. Often other substances like thin sheets of metal, plastic are fused to paper.
Letterpress
Also known as relief typographic printing, letterpress printing employs the use of type or designs cast or engraved in relief (raised) on a variety of surfaces which can include metal, rubber, and wood. Opposite of intaglio printing, in letterpress printing the ink is applied to the raised printing surface. Non-printing areas or spaces are recessed. Impressions are made in various ways. On a platen press the impressions are made by pressure against a flat area of type or plate. Flat-bed cylinder press printing uses the pressure of a cylinder rolling across a flat area of type or plate to create the impression. A rotary web press uses a plate that has been stereotyped (molded into a curved form) which presses against another cylinder carrying the paper.
Lift
Maximum number of sheets handled by operator of guillotine cutting machine or by paper handler loading paper for printing.
Lightfastness
The degree to which a paper or printed piece will resist a change in color when exposed to light.
Lignin
The "glue" that binds the cells of the tree and creates its structure. Approximately one third of the tree is lignin.
Likesidedness
Noticeably similar side-to-side color and finish of a sheet of paper.
Linen Finish
A paper embossed to have a surface resembling linen cloth.
Lithography
A generic term for any printing process in which the image area and the nonimage area exist on the same plane (plate) and are separated by chemical repulsion.
Localized Watermark
Achieved by arranging the design on the dandy roll to leave a watermark at a predetermined place on the sheet.
Long Grain
Paper made with the machine direction in the longest sheet dimension.
Loose Register
Color that fits "loosely"; positioning (register) is not critical.
M
M
Symbol in the paper industry designating 1,000. Usually used to designate 1,000 sheets or two reams of fine paper.
Mweight
Weight of 1,000 sheets of paper at a given size and basis weight. Is defined as the weight in pounds of 1000 sheets of paper of a given basis weight and size (dimensions); M is the Roman numeral for 1000.
Makeready
In printing presses, all work done prior to running.
Making Order
A paper that is not available off the supplier's shelf, but they will produce it when ordered. Making orders for special sizes, colors and weights of paper are subject to small minimums.
Matte Finish
A coated paper with a low level of gloss compared to enamel or gloss finishes.
Merchant
A company designated by a paper mill to represent and distribute their products and services to printers and publishers.
Micrometer
A device for accurately measuring the thickness (caliper) of paper.
Mottle
Finish which exhibits high and low spots or glossy and dull areas on the printed sheet.
N
Neutral PH
Offset papers manufactured with a pH of 6.0 to 8.0 on a scale of .0 to 14.0. Neutral pH factors are built into paper as a minimum value, to increase stability and improve permanence for use in printing of archival records.
O
Offset Lithography
The most common form of lithographic printing. To print, the ink is "offset" (transferred) from the plate onto a rubber blanket and then to the paper.
Offset Paper
Coated or uncoated paper specifically for offset printing.
Onionskin
A thin, lightweight paper used primarily for typewritten correspondence.
Opacity
The amount of "show through" in a sheet from one side to the other. The higher the opacity the less likely that the printing on one side will be visible from the other side.
Opaque Ink
An ink that conceals all color beneath it.
Opaques
Papers that have been opacified to achieve a high level of opacity and a minimum amount of show-through.
Out-Of-Square
Sheet paper which is cut or trimmed with other than 90 degree corners, or that is cut non-parallel or not at right angles to the grain of the paper (cut on the bias).
Overrun
A quantity of paper made in excess of the amount ordered.
P
Padding Compound
A flexible glue used in padding loose sheets.
Page Proofs
Initial impression of a page pulled for checking purposes before the entire job is run.
Pages Per Inch
In book production, the number of pages contained in a one-inch stack of paper.
Pallet
A wooden platform with stringers wide enough to allow a fork lift to drive into it and lift; used to pack cartons for shipment, if specified by the customer. Pallets are usually not reusable.
Parallel Fold
Any series of folds in sequence, made in parallel fashion.
Pasted
Pasted grades are those grades of paper or paperboard made up of layers pasted together. The process is a machine operation used to combine sheets of the same or different papers into a single thickness.
PCF - Process Chlorine Free
This is generally a recycling, decolorizing and bleaching process done without the use of chlorine or chlorine compounds. The usual chemicals are peroxide, ozone and oxygen.
PMS
Pantone Matching System.
Post Consumer Waste
Paper products that have served their intended end uses and have now been separated or diverted from solid waste for the purpose of recycling.
Preconsumer Waste
Manufacturing wastes such as envelope cuttings, bindery trimmings, rejected unused paper, obsolete inventories, and printed paper which have never reached the consumer.
Print On-Demand
Refers to the ability to print very small quantities (50-500 copies), quickly and cost-effectively.
Process Color
A four color reproduction. In four color printing, the process colors are yellow, magenta, cyan and black.
Proofs
Samples of copy and/or layout made at various stages of production of a printing job.
Pulp
Fibrous material in papermaking produced either mechanically or chemically from fibrous cellulose raw material (wood most common).
R
Rag Paper
Today it is usually referred to as cotton fiber paper. It is made from cotton cuttings and linters.
Ream
Paper that has been separated into reams and individually packaged or wrapped. One ream is 500 sheets of paper.
Recyclable
This means the product can be recycled. This applies to most paper even if it is coated, waxed or otherwise treated.
Recycled
Paper made at least in part from recovered fibers. There is no universally acceptable definition so requirements vary by specific circumstances. EPA requires post-consumer content in recycled papers purchased by federal agencies. But the FTC does not require post-consumer content in papers labeled recycled. Most U.S. governments and companies use the EPA standards, but there is no requirement. In Canada most companies use the terra-choice definition for recycle that does require minimum levels of post-consumer fiber.
Register Mark
Mark placed on a form to assist in proper positioning of after-printing operations. Two short lines at right angles are called an angle mark. Also, bulls-eye marks placed on camera-ready copy to assist in registration of subsequent operations.
Registration
Alignment of one element of a form in relation to another. Also, alignment of printed images upon the same sheet of paper.
Right Side
The felt side of a sheet, also the side on which the watermark, if any, may be read.
Runnability
Paper's performance on a press and its ability to withstand the stresses of a running press unaltered. Not the same as printability.