Prilagodba izrade fotopolimerne tiskovne forme novim kvalitativnim zahtjevima

Brajnović, Olivera (2011) Prilagodba izrade fotopolimerne tiskovne forme novim kvalitativnim zahtjevima. Master's thesis - Pre-Bologna programme. Grafički fakultet. [Mentor: Mahović Poljaček, Sanja].

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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.

Item Type:	Master's thesis - Pre-Bologna programme
Mentor name:	Mahović Poljaček, Sanja
Other mentors:	Fuchs-Godec, Regina
Thesis Committee:	Gojo, Miroslav and Mahović Poljaček, Sanja and Fuchs-Godec, Regina and Mandić, Lidija and Risović, Dubravko
Defence date:	5 December 2011
Abstract in 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.
Uncontrolled Keywords:	fotopolimerna tiskovna forma, CtP postupak izrade tiskovne forme, prilagođavanje digitalnog zapisa
Keywords in english:	photopolymer printing form, CtP printing form-making process, digital file adjustment procedure
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakultet
City:	Zagreb
Number of Pages:	120
Callnumber:	655.225 bra m
Inventory number:	9092
Status:	Unpublished
Date Deposited:	15 Nov 2013 21:47
Last Modified:	14 May 2014 13:14
URI:	http://eprints.grf.unizg.hr/id/eprint/1447

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