Tytuł artykułu
Treść / Zawartość
Pełne teksty:
Identyfikatory
Warianty tytułu
Evaluation of linework elements reproduction in gravure printing for different methods and parameters of electromechanical engraving
Języki publikacji
Abstrakty
Gravure printing is used for high-volume production of high quality magazines and packagings. The method of printing form preparation, while satisfying the requirement for uniform and ink transfer and low image granularity, restricts the precision of linework elements, especially those used in securities and special printing. To overcome this problem, novel engraving methods have been developed. The Paper presented deals with the quality of linework reproduction using different combination of engraving parametres. The quality was assessed by printing a prepared test image containing commonly used linework elements, while using forms engraved with different parametres combinations. A printout with standard engraving parameter set was used as a reference point. Line separation, details reproduction, image resolution and ink optical density were measured to quantify the results. Printing parameters were identical for all samples. It was found that engraving parametres have negligible influence on text readability, but other linework elements, e.g. microlines, Landolt rings and concentric circles, may differ significantly if printed from a form engraved with different parameters. Moreover, the linework element reproduction depends on relation of element direction and engraving direction, as well as the convergence of engraving screen and linework elements’ distance. The minimum linework thickness required for stable reproduction for all electromechanical engraving methods and parametres was found to be between 100 and 150 microns.
Czasopismo
Rocznik
Tom
Strony
9--27
Opis fizyczny
Bibliogr. 10 poz., rys., tab., wykr.
Twórcy
autor
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
autor
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
autor
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
autor
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
autor
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
autor
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
Bibliografia
- 1. Xtreme Engraving, Hell Gravure Systems Knowledge Base, November 2003.
- 2. High resolution cylinder engraving, Hell article, Hell Gravure Systems, 2009.
- 3. Sienkiewicz A., A comparative analysis of the latest electromechanical processes by Daetwyler and Hell Gravure Systems, March 2005.
- 4. Beißwenger S., Rid K. M., The physics of the gravure cell and the consequences for engraving copper gravure forms, Special Print April 2004 E 2, Hell Gravure Systems.
- 5. Kipphan H., Handbook of print media, Springer Berlin Heidelberg, 2001.
- 6. Gravure: Process and Technology, The Gravure Education Foundation and Gravure Association of America (GAA), Rochester (NY) 1997.
- 7. Ollech B., Tiefdruck (Grundlagen und Verfahrensschritte der modernen Tiefdrucktechnik), Polygraph-Verlag, Frankfurt/Main 1993.
- 8. Felhorski W., Stanioch W., Kolorymetria trójchromatyczna, Warszawa 1973.
- 9. HelioKIischograph K500 - Users guide, Hell Gravure Systems, 2006.
- 10. Markowski L., Dąbrowa T., Kasprzak S., Odwzorowanie szczegółów obrazów skanowanych w systemach DTP, "Poligrafika" 1994, nr 2.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d2851179-1f43-4fd0-b856-5de2024aa50c