Fine Print Knowledge Center
The online guide to print and design.
- Lot
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A flat fee, in reference to the pricing of a product or service.
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- Loupe
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A magnified eyepiece used to inspect copy, film, proofs, plates and printing.
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- Low Bulk
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Refers to papers somewhat thinner than the usual papers of the same weight, having a smooth surface, and which is a “thin” sheet.
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- Low Folio Binding Lap
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The off-center folding of a signature face to backbone that uses the lower page numbers of the signature for the binding lap. The binding lap should be 3/8” and allows the signature to be opened to the center when saddle stitching. A Low Folio Lap should be jogged to the foot to prevent reverse lap feeding.
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- Low Moisture Absorbency
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- Low Resolution Stepping
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LRS
A step and repeat workflow file format for editing programs which provides a more efficient process for automating the duplication of a single image two or more times on press plates. During the RIPing process, a high-resolution single element (cut marks, fold marks, images, etc) is used to automatically create a low-resolution file to be used for the step and repeat functions in the editing program, conserving file space and increasing processing speeds. When the file is exported to a PostScript digital front end (DFE) system, a conversion occurs on the fly with the low-resolution elements being replaced by links to the RIPed, high-resolution file and file elements.
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- Low-Key Picture
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A continuous tone photo made up of predominantly shadow areas of the same tone.
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- Lower Case
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- Loyalty Programs
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Incentive programs, including gifts, discounts and preferential treatment, offered to repeat or bulk sales customers.
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- LPB
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Liquid Packaging Board
Plastic-coated board (FBB, SBS, SUS and CKB) used for the packaging of liquid foods, such as milk or juice, and often high-barrier-coated or foil-laminated for long-life beverages
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- LPI
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Lines per inch
1. A measurement of the number of lines of type in an inch, determined by measuring from baseline to baseline. Example: 6 LPI indicates that 6 lines of type would fit in one inch.
2. The number of lines of dots per inch in a halftone screen or linescreen. A screen with a higher lpi, such as 200 lpi has many smaller dots which provide finer detail and a sharper image clarity. The LPI of a halftone screen is also called frequency.
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- LRS
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Low Resolution Stepping
A step and repeat workflow file format for editing programs which provides a more efficient process for automating the duplication of a single image two or more times on press plates.
During the RIPing process, a high-resolution single element (cut marks, fold marks, images, etc) is used to automatically create a low-resolution file to be used for the step and repeat functions in the editing program, conserving file space and increasing processing speeds.
When the file is exported to a PostScript digital front end (DFE) system, a conversion occurs on the fly with the low-resolution elements being replaced by links to the RIPed, high-resolution file and file elements.
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- LTL or LCL
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Less Than Truck Load.
When shipping less than a full truckload of product a truck will pick up product then go to a warehouse. The product will be unloaded and reloaded onto another truck and then possibly repeat this process adding product to the truckload as it gets closer to its final destination. This method of shipping takes more time but is more cost effective. Also see Truckload.
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- LTRS
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h3.
A code used on mail container labels that identifies the contents as letter-size mail.
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- Lumbeck System
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Polyvinyl acetate adhesive binding system used for brochures, books and other printing materials, in which the ends of a pile of sheets are fanned out.
After clamping, the leaves are fanned out in one direction and coated with glue. This process is then repeated on the other side.
The process is named after the bookbinder Emil Lumbeck (1886-1979).
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- Lumber
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Wood (= usu sawn timber) used for or suitable for building (e.g. a house or boat) or for carpentry or joinery
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- Lumen
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One lumen is the amount of light emitted by a light source with a luminous intensity of one candela (cd) into the spheridian unit of one steradian (sr quotient of the superficial content of a segment of a spherical surface and the square of the associated radius of the sphere).
The lumen unit is now mainly used in a form defined by the American National Standards Institute (called the “ANSI lumen”). To this end, the average of the brightness values measured at nine points on an illuminated surface is taken and the luminous flux determined on the basis of a table published by the Institute.
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- Luminence Signal-to-Noise Ratio
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This is a measure of how pure the video signal is (the monochrome or black-and-white portion of the picture).
Tape with good luminence signal-to-noise ratios has a sharper, clearer image.
This property has even greater importance on multiple generation copies.
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- Luminosity
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- LW
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- LWC
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LWC, HWC, MFC, MWC, SC, ULWC
Standard international acronyms for weights and grades of papers used in rotary offset and letterpress printing.
Coated stock can be identified HWC (heavy-weight coated), MWC (medium-weight coated), LWC (lightweight coated), or ULWC (ultra-lightweight coated).
All are wood pulp-based, but available in many varieties. MFC (machine-finished coated) paper is made primarily from ground wood pulp, has a grammage of 48 to 80 gsm, and may be high volume.
LWC paper is particularly lightweight stock for use on rotary offset machines. SC (supercalendered) paper is an uncoated wood pulp stock based mainly on ground wood and recycled content.
It features an additional finish applied by a separate supercalender.
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- Lycos
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