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0. Complete issue
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- 1. Quality Of Electrophotographic Prints On Foil Substrates
- Pages: 1-7
- Rozália Szentgyörgyvölgyi, Ákos Borbély
- Abstract | Download
Abstract
Electrophotographic printing uses many types of substrates, our study focuses on plastic substrates. Six types of
regular and self-adhesive foil substrates were chosen to be printed using two electrophotographic presses: Xerox
Colour 1000 Press and Canon imagePress C7000VP. A test chart containing tone value scales and a set of samples
for profiling was created, spectrophotomety and densitometry was applied to obtain the optical and colorimetric
properties of the substrates investigated. Xerox Color 1000 Press produced larger densities and tone value increase
on every type of substrate. The largest TVI values and reproducible colour gamut was observed on the smoothest
foil in case of both presses. Large colour differences were found between patches of full tone process colors on the
different substrates investigated.
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2. Spectrophotometric Examination of Rough Print Surfaces
- Pages: 8-15
- Erzsébet Novotny
- Abstract | Download
Abstract
The objective was to assess the impact of the surface texture of individual creative paper types (coated or patterned)
on the quality of printing and to identify to what extent the various creative paper types require specific types of
spectrophotometers. We used stereomicroscopic images to illustrate unprinted and printed surfaces of creative paper
types. Surface roughness was measured to obtain data on the unevenness of surfaces. Spectrophotometric tests were
used to select the most suitable spectrophotometer from meters with different illumination setup for testing any
given print. For the purpose of testing, we used spectrophotometers which are commonly available generally used to
test print products for colour accuracy. With the improvement of measuring geometries, illumination setup, colour
measurement becomes more and more capable of producing reliable results unaffected by surface textures. Our tests
have proved this fact by showing that the GretagMacbeth Spectrolino with annular illumination is less sensitive to
surface texture than the X-Rite Spetrodensitometer and the Techkon SpetroDens with directional illumination. Further
tests have brought us to the conclusion that there is a difference even between the two devices with directional
illumination. While the X-Rite 530 Spectrodensitometer is more suitable for testing coated surfaces, the Techkon
SpectroDens can come close to ΔE*ab values produced by the annular illuminated device for textured surfaces.
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3. The Efficiency Of Message Codification Level in Print Advertisements: The case of food and drink products or service
- Pages: 16-23
- Uroš Nedeljković, Ivan Pinćjer, Gojko Vladić
- Abstract | Download
Abstract
It has been our intention through this paper to evaluate the efficiency of chosen encoding messages in print ads for
food and drink, so we have conducted the survey with 28 respondents. The respondents have been asked to assess
their own emotions to ads from questionnaire by using Self Assessment Manikin scale (SAM). Ads have been
divided into conventional and unconventional ads according to the classification based on the levels of codification
by Umberto Eco. The comparison of responses to these two types of advertisements through SAM results and
conducted by ANOVA, shows significant differences in judgment of pleasure and judgment of arousal between
conventional and unconventional group of ads. Post hoc analysis has shown which of the ads contributed to differences
between two groups. The results confirm the hypothesis that the print ads for the food and drink products or
service which are coded in the conventional manner provokes recipients better than the ads coded with dominance
of the tropological or topical content. The reason for that comes from the fact that appealing with the gastronomic
icons on recipient cause the affective response of their innate instincts and tendencies.
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- 4. Influence Of Heat Treathment On Caracteristics Of Inkjet Prints On Textile Material
- Pages: 24-30
- Nemanja Kašiković, Dragoljub Novaković, Gojko Vladić, Maja Klančnik
- Abstract | Download
Abstract
This paper presents research regarding influence of heat treatment on changes of prints on textile material which
are obtained by inkjet printing technique. Research was done on three characteristic materials (100 % polyester)
on which ware printed test chart. Test chart consisted of four colour fields each 100% of one of process colours
(CMYK). Printing machine used was Mimaki JV22-160 with J-eco Subly nano inks. Variable factor was number
of ink layers, textile materials ware printed with one, two, three, four and five layers of ink. The analysis of heat
treatment influence on prints was done according to SRPS F.S3.311 standard (temperature 110 0C). Total of 60
samples were analyzed, 20 for each material used in this experiment. Resistance of colour to heat treatment and
transfer to cotton cloth was determined for characteristic temperatures by using the gray scale. The surface changes
of textile material before and after heat treatment ware monitored by SEM analysis.
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5. Designing Raster Cells as the Basis for Developing Personal Graphic Language
- Pages: 31-37
- Jana Z. Vujić, Aleksandra Bernašek, Tajana Koren
- Abstract | Download
Abstract
Continuous work in creating new designer solutions points towards the need to create personal routines as personal
communication in the relation comprising design, algorithms, and original computer graphics. This paper shows
procedures for developing a control language for creating graphic designs with individual raster elements (screening
element obtaint by halftoning). Personal commands should set routines in a language understood by the printer and
the designer. The PostScript basis is used because we mix vector and pixel graphics in the same program stream, as
well as different colour systems, and our own raster forms. The printing raster is set with the target of special design
multi-use, and this includes the field of security graphics and art computer reproduction. Each raster form assumes
modifications, creating their raster family. The raster cell content is transformed with PostScript, allowing the setting
of basic values, angle and liniature for each pixel separately. Raster cells are mixed in multi-colour graphics to the
level of individual designs with variable values of parameters determining them.
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6. Comparison Of Conventional And Recycled "Green" Office Paper
- Pages: 38-45
- Klemen Možina, Vera Rutar
- Abstract | Download
Abstract
To confront with the market need, we have to find alternative in respond to enormous necessity and application of
office paper. Therefore, one way in dealing with the problem is to replace or just decrease the use of paper made
entirely from primary components, mainly wood fibbers (deciduous and conifer). We analysed mechanical, optical,
structural and microscopic properties. Experiments were performed on three conventional and three recycled office
papers reachable on the market. Results, obtained from measurements, confirm presumption, that mechanical and
surface properties of recycled office paper can be collated and they discern from conventional office paper.
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