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Bibliographic record number: 518724

Journal

Authors: Tomašegović, Tamara; Cigula, Tomislav; Mahović Poljaček, Sanja; Gojo, Miroslav
Title: EFFECT OF EXPOSURES ON THE MECHANICAL PROPERTIES OF THE LIQUID PHOTOPOLYMER FLEXOGRAPHIC PRINTING PLATE
Source: PROCEEDINGS MATRIB 2011. / Schauperl, Zdravko ; Šolić, Sanja (ed). - Vela Luka : Croatian Society for Materials and Tribology , 2011. 495-501 (ISBN: 978-953-7040-20-8).
Meeting: International Conference MATRIB 2011.
Location and date: Vela Luka, Hrvatska, 29. 06. - 01. 07. 2011.
Keywords: flexography; photopolymer; printing plate; exposition; hardness
Abstract:
Flexography is a type of rotary printing process, and is based on a flexible rubber or photopolymer printing plates. Production of printing plates based on liquid polymer requires multiple exposures, which affect their functionality. The duration of exposures is usually defined by manufacturers of polymers, and varies depending on the thickness of a desired printing plate. Variation of exposure leads to changes in mechanical properties of printing plate and level of its quality. The mechanical properties of this type of printing plates are mainly related to printing plate‘s hardness that has a primary influence on the durability of the printing plate in a reproduction process. On the other hand, quality level of printing plate is related to detecting the ability to reproduce various motives. In order to define the optimal conditions for making printing plates which will allow the reproduction of micro motives (text and lines), samples of the printing plates made with different exposure times were prepared. Measurement of printing plate's hardness, as well as the heights of printing and nonprinting areas, depending on variations in exposure, were performed on the samples. The level of quality was monitored by a microscopic analysis of characteristic microlines on the samples. The assumption is that results of this research will show a significant influence of exposure on mechanical properties and quality level of printing plates.
Type of meeting: Poster
Type of presentation in a journal: Other
Type of peer-review: International peer-review
Project / theme: 128-1201785-2228, 128-1281957-1958
Original language: ENG
Category: Znanstveni
Research fields:
Graphic technology
Contrib. to CROSBI by: mgojo@grf.hr (mgojo@grf.hr), 6. Srp. 2011. u 13:12 sati



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