Search for dissertations about: "quality control in printing industry"

Showing result 1 - 5 of 7 swedish dissertations containing the words quality control in printing industry.

2. 1. Toward better image reproduction in offset

   Author : Emmi Enoksson; Nils Enlund; Ulf Lindqvist; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Images; offset; printing; ICC; color; gamut; profile; calibration; separation; GCR; UCR; characterization; gray balance; Computer science; Datalogi; Media and communication studies; Medie- och kommunikationsvetenskap;

   Abstract : This thesis has focused on color reproduction processes in the graphics field and is based on theoretical research and practical studies. The purpose of this thesis was to investigate how new tools and tools adapted to a specific production set-up can be used to raise awareness regarding the quality and workflow of images and image processing for sheet-fed offset within the graphic industry. READ MORE

4. 2. 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

5. 3. Qualification of Metal Additive Manufacturing in Space Industry : Challenges for Product Development

   Author : Christo Dordlofva; Anna Öhrwall Rönnbäck; Peter Törlind; Ola Isaksson; Marco Bertoni; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Additive Manufacturing; Space industry; Product Development; Qualification; Design for Additive Manufacturing;

   Abstract : Additive manufacturing (AM), or 3D printing, is a collection of production processes that has received a good deal of attention in recent years from different industries. Features such as mass production of customised products, design freedom, part consolidation and cost efficient low volume production drive the development of, and the interest in, these technologies. READ MORE

6. 4. Ink-paper interactions and effect on print quality in inkjet printing

   Author : Anna Lundberg; Magnus Lestelius; Mittuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Other physics; Övrig fysik;

   Abstract : This thesis concerns paper and ink interactions related to inkjet printing. Themain purpose of this work was to gain a deeper understanding in whichparameters control the flow of ink into papers and how the ink interacts with thepaper surface. The overall objective was to find key parameters to optimize theprint quality in inkjet printing. READ MORE

7. 5. Mechanics of paper webs in printing press applications

   Author : Artem Kulachenko; Sören Östlund; Thomas Abrahamsson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Travelling webs; skew tension profiles; mixed dynamic formulation; fluting; Other engineering mechanics; Övrig teknisk mekanik;

   Abstract : The mechanics of paper is a difficult subject because paper is a unique material. It is very thin, flexible at bending, unstable in compression and stiff at tension. Dealing with paper we have to account for orthotropy and heterogeneities created during the manufacturing process. READ MORE