20.500.12556/DKUM-21316 PRIMERJAVA RAZLIČNIH VLAŽILNIH RAZTOPIN ZA OFSET TISK THE COMPARISON OF DIFFERENT FOUNTAIN SOLUTIONS FOR OFFSET PRINTING Namen naloge je bil z laboratorijskimi testi ugotoviti kompatibilnost izboljšanega pufra (P – 55 Eko pufer), ki bo kompatibilen z novimi optiline barvami Cinkarne Celje. Pufer (v tiskarstvu) je koncentrat, ki se dodaja v majhnih količinah (do 5%) v vlažilno tekočino, ki v ofsetnem tisku vlaži čiste površine in s tem onemogoča prenos barve na proste (netiskane) površine. Kompatibilnost barva – pufer se nedvoumno najbolj ugotavlja pri samem tisku. Vendar je bilo predhodno potrebno narediti primerjalne laboratorijske teste med različnimi pufri, ki so nam dali določene rezultate. Vlažilnim raztopinam smo izmerili pH vrednosti, elektroprevodnosti, površinske napetosti, gostote, kislinske komponente, sušino in določili vodno ravnotežje z rdečo in rumeno optiline barvo Cinkarne Celje. The purpose of this diploma work was a laboratory test for the buffer improvement that would be compatible with the new colours from Cinkarna Celje which they started producing this year. Buffer (in printing) is a concentrate that is added in small quantities (up to 5%) to the hydrating fluid which moisturizes clean surfaces in the offset printing and thus prevents the transfer of colours on the free (unprinted) surfaces. Compatibility of colour - buffer is most notably determined in the press itself. However, it was previously necessary to do comparative laboratory tests of various buffers, which gave us some results. pH, conductivity, surface tension, density, acid components and the amount of dry matter were measured in the hydrating solutions. The water balance of red and yellow optiline colors from Cinkarna Celje were determined. ofset tisk tiskarske barve površinska napetost offset printing printing inks surface tension true true false [M. Volf] Slovenski jezik Angleški jezik Diplomsko delo 2011-11-15 11:01:08 2011-11-25 08:34:55 2022-04-14 10:29:07 2023-12-28 03:24:17 2011 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 667.55:544.6(043.2) 16037142 URN:SI:UM:DK:YYPM0CF9 VS_Volf_Mihela_2011.pdf VS_Volf_Mihela_2011.pdf 1 4285CFEBD4C2524AF0E09242F5075CEB fb9ae3992039b8adc69fef24edd415d5543fbd48d0167fa949feb5a15b457746 d54f69ec-7c05-11eb-bb7a-00155d0001ca 20.500.12556/dkum/9cf9cdcb-bbed-475b-91d0-293e7bf851b3 https://dk.um.si/Dokument.php?lang=slv&id=26938 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0