Sökning: "Colour print control"

Hittade 5 avhandlingar innehållade orden Colour print control.

  1. 1. Using Multicoloured Halftone Screens for Offset Print Quality Monitoring

    Författare :Lars Bergman; Björn Kruse; Antanas Verikas; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Datorteknik; multicolour printing; printing process; colour images; colour impression; CCD-camera; Datorteknik; Computer engineering; Datorteknik; Multicolour printing; Printing process; Colour images; Colour impression;

    Sammanfattning : 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. LÄS MER

  2. 2. Modelling and controlling an offset lithographic printing process

    Författare :Cristofer Englund; Högskolan i Halmstad; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Neural networks; Self-organizing map; Data mining; Outlier detection; Committee; Multiple models; Colour print control; Image analysis; Bildanalys;

    Sammanfattning : The objective of this thesis is to provide methods for print quality enhancements in an offset lithographic printing proess. Various parameters characterising the print quality are recognised, however, in this work print quality is defined as the deviation of the amount of ink in a sample image from the reference print. LÄS MER

  3. 3. Printability and Ink-Coating Interactions in Inkjet Printing

    Författare :Erik Svanholm; Göran Ström; Gunnar Engström; Janet Preston; Karlstads universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; coating; inkjet; print quality; printability; pigment; silica; polyvinyl alcohol; colorant; ink absorption; Chemical engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Sammanfattning : Inkjet is a digital printing process where the ink is ejected directly onto a substrate from a jet device driven by an electronic signal. Most inkjet inks have a low viscosity and a low surface tension, which put high demands on the coating layer’s porosity and absorbency characteristics. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  5. 5. Soft proofing using liquid crystal displays

    Författare :Sara Leckner; KTH; []
    Nyckelord :displays; lcd; crt; premedia; prepress; soft proof; workflows;

    Sammanfattning : Development of colour management systems, the level ofstandardisation, as well as the embedding of facilities forcolour management into computer operating systems and software,enables successful future interoperability of colour reproductionin the graphic arts industry. Yet colour reproduction from onemedium to another, still gives rise to inconsistencies. LÄS MER