Fine Print Knowledge Center
The online guide to print and design.
- Head-to-Head
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The printing on the front and back of a sheet so that the top of both sides is printed at the same end of the sheet. You would turn the sheet over like the page of a book to read the reverse side.
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- Head-to-Tail
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The printing on the front and back of a sheet so that the tops of each side are placed at opposite ends from each other.
The top of one page is opposite the bottom of the other.
When reading, you turn the sheet over from top to bottom.
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- Head-to-Toe
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The printing on the front and back of a sheet so that the tops of each side are printed at opposite ends from each other. The top of one side is opposite the bottom of the other. You would turn the sheet over from top to bottom to read the reverse side. Also referred to as head-to-tail or tumble.
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- Headband
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A small strip of silk or cotton used for decoration at the top of a book between the sheets and the cover. In hand binding, a real tape to which the signatures are sewn.
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- Headbox
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On a paper machine, the box that dispenses the appropriate amount of furnish (pulp) into the papermaking process.
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- Header
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1.One or more lines of text that appears at the top of a page, which may include information such as the chapter number, title, or page number. If it appears at the top of every page, it is called a running header.
2.Key data for a data set or file that enables user software to interpret and process data correctly. In relation to a file, the header provides such information as number of pages, date and time and the size of the file.
For the processor, the header is particularly important in relation to programs, as it contains information that specifies the programs in the RAM.
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- Header Record
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Information that contains common, constant, or identifying data for a group of records that follow.
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- Headline
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The line which commonly appears at the top of each printed page, typically showing the book title on the left-hand side and chapter title on the right; sometimes also incorporates the folio. Sometimes also known as a running head.
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- Heartwood
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Wood located in the centre of the trunk and often darker in colour than the surrounding wood
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- Heat Reactive Irreversible Ink
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Heat reactive-irreversible ink is colorless when printed. When it is exposed to heat between 185°F (85°C) and 212°F (100°C), sharp color appears and does not disappear once the temperature is lowered.
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- Heat Resistance
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The ability of a material to resist damage when exposured to high temperatures.
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- Heat Seal Papers
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Paper that has an adhesive coating applied to it that requires heat to activate the adhesion properties.
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- Heat Set Inks
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Inks used for high speed web offset printing. Heat set inks must be rapidly set by the use of heat.
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- Heat Set Printing
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Mandatory for printing magazines on coated papers because it is not absorbent enough to permit drying by evapora-tion at web offset’s high running speeds. A hot-air oven or another heat source is used to set the ink as the paper moves from the printing units to the delivery end of the press.
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- Heat Transfer Printing (Direct Transfer Process)
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Image is screened on a transfer substrate which is then laid directly on the material to be imprinted. The image is then transferred from the substrate to the material through the use of heat and pressure. Works best on cotton and cotton blends.
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- Heat Transfer Printing (Sublimation)
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A process in which a design is transferred to a synthetic fabric by heat and pressure. The heat causes the inks to turn into a gas so that they penetrate the fabric and combine with it to form a permanent imprint.
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- Heat Tunnel
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A device used to apply heat to plastic wrapped packages, shrink labels, preforms and combo banded packages to cause the film to shrink and fit tight to the product. The product, with the film in place around the container or package, is place on a conveyor belt which moves through the tunnel. The tunnel is heated to a temperature high enough to make the film shrink and fit tight to the product.
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- Heat-Set Drying
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Drying a web or sheet of paper or board by passing it through a drying unit which forms part of the machine. Special heat-setting inks have to be used.
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- Heat-Set Ink
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A printing ink dried after the printing process by blowing air between 120° and 150° Celsius onto it. Heat-set inks are used in rotary offset printing.
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- Heatset
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A printing process where the printed ink is dried by applying heat.
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- Heatset Web
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Reelfed press equipped with a drying tunnel which dries the ink before the printed web of paper is either folded, sheeted or re-reeled.
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- Heavy Coat Weight
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A higher-than-standard weight of coating per unit area.
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- Hed
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- Heidelberg
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Heidelberger Druckmaschinen AG
Heidelberg is the world’s leading solution provider for commercial and industrial customers in the print media industry.
Headquartered in Heidelberg, Germany, the company focuses on the entire process and value chain for popular format classes in the sheetfed offset and flexographic printing sectors.
Apart from printing presses, the product portfolio includes plate imaging devices and finishing equipment, as well as software components designed to integrate all print manufacturing processes.
In addition, Heidelberg offers a wide range of spare parts, consumables, used equipment and services, along with extensive training programs provided by the Print Media Academy.
http://www.heidelberg.com/
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- Held Art
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Artwork, graphics, and/or images that are stored in a merge library.
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- Helio Engraving
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Photochemical process for creating gravure plates introduced by the Czech painter and graphic artist Karel Václav Klíc in 1878. Helio engraving was particularly popular between 1890 and 1910 for creating monochrome illustrations in high-quality books.
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- Heliogravure
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An intaglio print produced by the gravure process (photogravure).
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- Heliotype
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An image produced by printing from a film of gelatine which has been sensitised with bichromate of potash and exposed to light through a photographic negative.
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- Help
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A command or program key that can be used to request information on how to use a program and/or possible user options.
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- Help Desk
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A single point of contact that internal users can go for problem solving.
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