Prilagodba izrade fotopolimerne tiskovne forme novim kvalitativnim zahtjevima

scientific master's theses

• Author: Olivera Brajnović
• Mentor: Sanja Mahović Poljaček (mentor)
• Committee member: Miroslav Gojo (član povjerenstva)
• Committee member: Sanja Mahović Poljaček (član povjerenstva)
• Committee member: Regina Fuchs-Godec (član povjerenstva)
• Committee member: Lidija Mandić (član povjerenstva)
• Committee member: Dubravko Risović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2011-12-5, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology
• Universal decimal classification (UDC): 655 - Graphic industries. Printing. Publishing. Book trade

Abstract

Prilagodba izrade fotopolimerne tiskovne forme novim kvalitativnim zahtjevima obuhvaća

razmatranje osnovnih parametara u postupcima izrade tiskovnih formi iz računala (CtP,

Computer to Plate) koji su nužni za postizanje visoko kvalitetnih otisaka u fleksotisku. Kako

je fleksotisak tehnika tiska koja se danas najčešće koristi u reprodukciji ambalaže,

karakteriziraju ju fleksibilne i elastične tiskovne forme te bojila niskog viskoziteta koje ga čine

pogodnim za tisak na gotovo sve podloge.

Cilj ovog istraživanja je proširiti znanja o proceduri pripreme i obrade fotopolimernih

tiskovnih formi koja utječu na kvalitetu ispisa tiskovne forme. Naime, fleksibilnost tiskovne

forme i deformacije koje se javljaju u toku reprodukcije smatraju se tehnološkim

ograničenjima ove tehnike, te ih je nužno definirati i obrazložiti. Kada se govori o reprodukciji

tonova u okviru navedenih ograničenja, odstupanja se javljaju zbog fleksibilnosti tiskovne

forme i pritiska u toku tiska, te se najčešće očituju u području svijetlih i tamnih tonova na

reprodukcijama. Upravo će iz tog razloga u radu biti prikazana procedura prilagodbe postupka

izrade fotopolimerne tiskovne forme s ciljem postizanja optimalnih rezultata reproduciranja.

Također će biti pojašnjene promjene u prilagodbi postupka izrade tiskovnih formi s obzirom

na različitu tiskovnu podlogu koje će ukazati na potrebu definiranja tzv. zatvorenog sustava

reprodukcije, a koji uključuje i povezuje tri segmenata: postupak izrade tiskovne forme,

tiskarski sustav i tiskovnu podlogu.

Abstract (english)

Adjustment of the photopolymer printing forms to match new qualitative requirements

includes consideration of the basic parameters in the digital printing form plate making

processes (CtP, Computer to Plate), which are necessary for achieving high-quality prints in

flexographic printing process. Flexographic printing technique is widely used in the packaging

reproduction area and is characterized by flexible and elastic printing forms and low viscosity

printing ink that makes it suitable for printing on almost any printing surface.

The aim of this research is to expand the knowledge about the photopolymer printing form

procedure and their processing which have the main influence on the quality level of the

forms. It is well known that the flexibility of the printing forms and deformations that occur

during the reproduction process are considered to be the technological limitations of this

technique. Base on that fact, the reasons and consequences of those deviations have to be

defined and explained. The limitations are mainly defined through the reproduction of tones

which are the consequence of the flexibility of printing forms and the pressure during the

printing process. This work will present the model for adjustment of the process procedures of

photopolymer printing forms in order to achieve optimal reproduction results. The results have

shown the necessity of creation of the closed reproduction systems which include three

different segments: printing form, printing system and the printing substrate.

• Keywords: fotopolimerna tiskovna forma; CtP postupak izrade tiskovne forme; prilagođavanje digitalnog zapisa
• Keywords (english): photopolymer printing form; CtP printing form-making process; digital file adjustment procedure
• Language: croatian
• URN:NBN: urn:nbn:hr:216:956857
• Study programme: Title: Postgraduate university study programme Graphic engineering; Course: Graphic technology; Study programme type: university; Study level: postgraduate; Academic / professional title: magistar znanosti (magistar znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-07-17 16:59:55