Search for dissertations about: "Thesis based on offset ink"

Showing result 1 - 5 of 8 swedish dissertations containing the words Thesis based on offset ink.

2. 1. Interfacial Adhesion Failure : Impact on print-coating surface defects

   Author : Hajer Kamal Alm; Lars Wågberg; Göran Ström; Janet Preston; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ink-paper coating adhesion; offset printing; calcium carbonate pigments; polyacrylate; dispersant; print mottle; surface chemistry; hygroscopy of surfaces; coating structure; print quality; water interference mottle; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : The aim of this work was to develop a solid knowledge on formulation effects controlling offset ink-paper coating adhesion and to identify key factors of the coating and printing process affecting it. Focus lay on comprehending the impact of pigment dispersant on ink-paper coating adhesion and ultimately on the print quality of offset prints. READ MORE

4. 2. Characterization of Halftone Prints based on Microscale Image Analysis

   Author : Mahziar Namedanian; Sasan Gooran; Jon Yngve Hardeberg; Linköpings universitet; []
   Keywords : ;

   Abstract : Ink spreading and lateral light scattering in the substrate affect the color of a halftone print. One of the most important phenomena which affects the print result is dot gain, meaning that printed dots appear larger than the dots in the digital bitmap. READ MORE

5. 3. Automated CtP Calibration for Offset Printing : Dot gain compensation, register variation and trapping evaluation

   Author : Shahram Hauck; Sasan Gooran; Björn Kruse; Peter Nussbaum; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Although offset printing has been and still is the most common printing technology for color print productions, its print productions are subject to variations due to environmental and process parameters. Therefore, it is very important to frequently control the print production quality criteria in order to make the process predictable, reproducible and stable. READ MORE

6. 4. Modelling the offset lithographic printing process

   Author : Cristofer Englund; Högskolan i Halmstad; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Neural networks; Self-organizing map; Data mining; Outlier detection; Leverages; Committee; Adaptive modelling; Image analysis; Bildanalys;

   Abstract : A concept for data management and adaptive modelling of the offset lithographic printing process is proposed. Artificial neural networks built from historical process data are used to model the offset printing process aiming to develop tools for online ink flow control. READ MORE

7. 5. Using Multicoloured Halftone Screens for Offset Print Quality Monitoring

   Author : Lars Bergman; Björn Kruse; Antanas Verikas; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Datorteknik; multicolour printing; printing process; colour images; colour impression; CCD-camera; Datorteknik; Computer engineering; Datorteknik;

   Abstract : In the newspaper printing industry, offset is the dominating printing method and the use of multicolour printing has increased rapidly in newspapers during the last decade. The offset printing process relies on the assumption that an uniform film of ink of right thickness is transferred onto the printing areas. READ MORE