- Tytuł:
-
Badanie odwzorowania elementów kreskowych w technice wklęsłodruku przy użyciu cylindrów formowych grawerowanych mechanicznie z zastosowaniem różnych metod i parametrów
Evaluation of linework elements reproduction in gravure printing for different methods and parameters of electromechanical engraving - Autorzy:
-
Dąbrowa, T.
Hamerliński, J.
Hoppe, J.
Krzyżkowski, J.
Śleboda, P.
Wojciechowski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/128474.pdf
- Data publikacji:
- 2014
- Wydawca:
- Centralny Ośrodek Badawczo-Rozwojowy Przemysłu Poligraficznego
- Tematy:
-
wklęsłodruk
cylinder formowy
elementy kreskowe
grawerowanie
gravure printing
linework elements
engraving
electrochemical engraving - Opis:
- 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.
- Źródło:
-
Acta Poligraphica; 2014, 3; 9-27
2299-9981 - Pojawia się w:
- Acta Poligraphica
- Dostawca treści:
- Biblioteka Nauki
Artykuł