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0. Complete issue
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- 1. UV Ink-Jet printability and durability of stone and foil
- Pages: 7-12
- Tadeja Muck,
Alenka Mauko,
Diana Gregor-Svetec
- Abstract | Download
Abstract
The use of ultraviolet (UV) printing technology has impacted printing industry
in last years due to its applicability on many different »absorptive« as well
as »non-absorptive« printing materials. The printability of building materials
and recycled foils is relatively unknown. For primary building materials like
stones, functionality can be explored with the use of UV printing technology;
increased visual, informative effect or even “creative printing” of buildings.
Also several aspects of recycled foils reusability as a printing material could
be find (printed packaging material or also like secondary building materials).
In the present study, printability of the stone and recycled foil and durability
of UV prints was explored by means of macroscopically and microscopically
characterization. Results indicate that higher print quality can be achieved on
polished stone and on coated foil, which surfaces have higher smoothness.
Durability of UV prints at freezing is higher at unpolished stone and coated
foil that is at materials with the higher surface energy.
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2. Research of the relief images
forming process on the imprints by
means of screen UV-varnishes
- Pages: 13-16
- Sergіy Piknevych,
Vyacheslav Repeta
- Abstract | Download
Abstract
This article describes the process of relief image forming by UV-varnishes on
self-adhesive labels done by means of screen printing plates with different
screen mesh - 36 and 90 lines per cm. The influence of substrates’ surface
energy on the process of UV-varnish transfer has been investigated. It was
defined a disproportional distribution of surface energy on nonprinted
self-adhesive paper and it was determined the influence of screen ruling on
the varnishing relief’s height as well as the value of substrate’s surface energy
and viscosity of UV- varnish.
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3. Influence of the surface roughness
of coated and uncoated papers
on the digital print mottle
- Pages: 17-23
- Ivana Jurič,
Danijela Ranđelović,
Igor Karlović,
Ivana Tomić
- Abstract | Download
Abstract
Many factors influence the occurrence of print mottle in prints. In printing
process three main components are involved: printing press, substrate and
toner. They can be considered as separate components, but in most cases
their interaction influences the quality of the print.
The goal of this work was to examine the influence of surface roughness of
different types of paper (coated and uncoated on print mottle of electrophotographic
digital prints. We set up a hypothesis that print mottle will be
more apparent on rougher surfaces. In the experimental part we printed four
different substrates with different surface properties on electrophotographic
printing press. Morphology of the papers surface was analysed using atomic
force microscopy (AFM) from which surface properties were calculated. For
print mottle characterization Gray level co-occurrence matrix (GLCM) method
was used. Based on the measurements and results we can conclude, contrary
to the initial hypothesis, that uncoated papers with rougher surfaces produce
smaller print mottle values.
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- 4. Dependence of warm or cold feeling
and heat retention ability of knitwear
from digital print parameters
- Pages: 25-32
- Mladen Stančić,
Dragana Grujić,
Dragoljub Novaković,
Nemanja Kašiković,
Branka Ružičić,
Jelka Geršak
- Abstract | Download
Abstract
Textile materials are increasingly being subjected to the process of printing.
The printing process with its parameters significantly affects the properties
of textile materials and clothes made from these materials. This paper examines
the effect of the parameters of digital printing on thermo-physiological
characteristics of printed textile materials. As the essential print parameters
were selected tone value and a different number of passes. In this research
were used knitted fabric materials of 100% cotton fibers (100% CO), 100%
polyester fibers (100% PES) and their mixture (50%CO/50% PES). The influence
of print parameters to thermo-physiological properties of the material
is evaluated through a warm or cold feeling and heat retention ability. Results
of the research demonstrated that, in addition to material composition,
the printing process with its parameters have a significant influence on the
thermo-physiological characteristics of textile materials.
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