Glossary
The glossary of Barenschee is permantly being updated and completed! So please take a look every once in a while:
Terms |
Explanations |
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Barcode
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Today there are many different types of barcodes. Generally you can distiguish between the so-called 1-dimensional and the two-dimensional (see matrix code) codes. The barcodes will be exposed in the "non-printing-area" of the printing plate to identify the plate for the software program. You need a barcode reader to read a barcode. |
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Blank plate
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Blank plates are un-exposed plates for areas where you do not need an imprint. Typically you need blank plates on a 4-colour newspaper machine if you only want to print one colour. |
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CTP (Computer-to-plate)
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In a CTP process the computer data will be send directly to the exposer ( see here for more details). |
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3-point align
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If you have to fix an object in a certain position, it must touch three different points under a certain angle. Therefore a printing plate must touch three contact points at the same time to get punched. |
| Printing plate processing plant
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This term describes a machine system that handles printing plates after the exposing and processing of the plate. |
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Pre-press
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Pre-press is basically everything before the printing process. |
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Single page width printing plate
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These are printing plates that have actually the same dimension as the printed newspaper. |
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Fan-out-Compensation
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The term "fan-out" describes the widening of the paper during the printing process. The compensation can be done by the CTP software. |
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Remote maintenance
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This describes all service work via telephone or modem. |
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Flexo printing plates
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Besides the offset technology in some countries (i.e. Italy, UK, US) you also use the flexo technology for printing newspaper. |
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Matrix code
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A matrix code is a two-dimensional barcode, where you can store more data per sq inch than in a barcode. |
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Panoramic printing plate
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The size of this printing plate covers exactly two pages of the newspaper. |
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Register marks
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TP position a printing plate in a video controlled punch bender, you need register marks which are exposed on the printing plates. |
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Register correction
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SPS-control (PLC-control)
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These are free programmable computer systems to controll industrial machines. |
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Punch and Bender
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The accurate positioning of printing plates into the printing press is very crucial. Therefore you need very exact holes in the printing plate. |
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Video-Punch and Bender
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A punch and bending system where thhe positioning of the plate is supported by a camera. |
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Workflow-system
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A computer system that controll the complete process of a plant. |
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Newspaper formats
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On a worldwide level the following newspaper formats have been established:
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| Interleaving paper |
To avoid spots and scratches on the highly sensitive coated printing plate, the plates are separted by interleaving papers. |