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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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Journal of Graphic Engineering and Design, Volume 5 (1), 2014. 25





















1
2
3
3
1

1 University of Banja Luka,
Faculty of Technology,
Graphic Engineering, Banja Luka
2 University of Banja Luka,
Faculty of Technology,
Texle Engineering, Banja Luka
3 University of Novi Sad,
Faculty of Technical Sciences,
Graphic Engineering and Design
4 University of Maribor, Faculty of
Mechanical Engineering, Texle
Materials and Design, Maribor
Corresponding author:
Mladen Stančić
e- mail: mladen.stancic@unibl.rs


abstract
Texle materials are increasingly being subjected to the process of prinng.
The prinng process with its parameters signicantly aects the properes
of texle materials and clothes made from these materials. This paper exam-
ines the eect of the parameters of digital prinng on thermo-physiological
characteriscs of printed texle materials. As the essenal print parameters
were selected tone value and a dierent number of passes. In this research
were used knied fabric materials of 100% coon bers (100% CO), 100%
polyester bers (100% PES) and their mixture (50%CO/50% PES). The inu-
ence of print parameters to thermo-physiological properes of the material
is evaluated through a warm or cold feeling and heat retenon ability. Re-
sults of the research demonstrated that, in addion to material composion,
the prinng process with its parameters have a signicant inuence on the
thermo-physiological characteriscs of texle materials.






  




































































Methods and materials









Table 1

Sample Material
type
Type of
weaves
Material
composion
(%)
Fabric
weight
(g/m2)
Thread
count
(cm-1)
     

   
  

   
  

   


















Journal of Graphic Engineering and Design, Volume 5 (1), 2014. 27















































 
















»Components of measuring deviceKES-F7 Thermo Labo II

















»Figure 2: Warm or cold feeling of coon knitwear subjected to the prinng process (Note: P mark indi-
cates knitwear, 10, 50 and 100 denote a print with 10%, 50% and 100% of tonal values, K is a black
ink mark, P1, P3 and P5 are the marks of the print with 1, 3 and 5 passes, CO stands for coon)
»Figure 3: Warm or cold feeling of polyester knitwear subjected to the prinng process (Note: P mark indi-
cates knitwear, 10, 50 and 100 denote a print with 10%, 50% and 100% of tonal values, K is a black ink
mark, P1, P3 and P5 are the marks of the print with 1, 3 and 5 passes, PES stands for forpolyester)
Journal of Graphic Engineering and Design, Volume 5 (1), 2014. 29



















































Heat retenon ability analysis










»Figure 4: Warm or cold feeling of CO/PES knitwear subjected to the prinng process (Note: P mark indicates
knitwear, 10, 50 and 100 denote a print with 10%, 50% and 100% of tonal values, K is a black ink mark, P1, P3
and P5 are the marks of the print with 1, 3 and 5 passes, CO/PES stands for mixture of coon and polyester)




 



  
  
  
  
  
  
  
  
  
  




















 



  
  
  
  
  
  
  
  
  
  




















 



   
  
  
  
  
  
  
  
  
  






















Journal of Graphic Engineering and Design, Volume 5 (1), 2014. 31



»Graphic representaon of warm or cold feel-
ing dependence from tonal value and number of passes





































































 



 



 


 


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 



 


 


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 
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

 
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




 





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
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



... Thus, it is very important that textiles keep certain characteristics after printing process, in order to provide a high degree of comfort [106,107]. Printing of the textile materials leads to the changes in certain textile properties that are important for overall wearing comfort, e.g., printed textiles comparing to unprinted textiles show increased thermal conductivity, heat retention ability and water vapor resistance, while reduction in sorption capability of the textile material [108][109][110]. The textiles printed with PCM microcapsules using screen-printing technique, perform with reduced air permeability characteristics for almost four times, compared to unprinted fabrics [46]. ...
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The process of oil-containing microcapsules production by complex coacervation of gelatine and gum arabic was patented in 1957. Microencapsulation technology gained importance in production of carbonless copy paper as one of the most important commercial products. Development of this technology in later years led to the emergence of different types of microcapsules and the production procedures for various application fields. Nowadays, they are mainly used in medicine, pharmacy, agriculture, construction industry, chemical industry, food industry, biotechnology, cosmetic industry, photography, electronics, textiles and printing industry. This review paper highlights the major types of microcapsules and their applications in production techniques in graphic arts and printing industry, various processing parameters that affect their important characteristics and methods for microcapsules characterization. This paper discusses the applications of microcapsules within printing industry, and feasible printing technologies related to the desired substrate materials. The analysis of these subjects offers a deeper insight into the mechanisms of microcapsule transfer processes, their behavior, and working conditions leading to the final products. It reveals the advantages and the drawbacks of certain printing technologies for microcapsules transfer, which enables the determination of favorable transfer procedure for specific microcapsule type and substrate materials. This paper also provides valuable recommendations and potential solutions on how to overcome the obstacles created by certain printing technologies.
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Manufacturers today are using different textile materials for making clothes. Those materials can look the same, but in the same time, they can have significantly different characteristics. The material and its characteristics should allow clothes making that will meet the aesthetic, ergonomic and physiological requirements. Increase of the aesthetic value of clothing, nowadays, is often carried out with the process of printing. This paper presents the influence of parameters of digital printing, such as the number of passes and tone value, on thermo-physiological properties of different material composition. For research were used fabric made of 100% cotton fiber (100% CO), 100% polyester fibers (100% PES) and their mixture (50% CO / 50% PES). The influence of printing parameters on thermo-physiological properties of the material is evaluated through thermal resistance of textiles and textile resistance to the flow of water vapor as a parameter of a thermo-physiological comfort of clothing. The results showed that in addition to the process and printing parameters, a material composition also has a major influence on thermo-physiological properties of textile materials.
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During exploitation period printed textile products are usually exposed to various influences. One of the most common influence is a washing treatment. The washing treatment causes modification of textile fibres and change of colours reproduction on materials. This paper presents the research of influence of washing treatment on print quality parameters of screen printed textile, i.e. cotton substrates. Besides the influence of series of washing treatments, the influences of printing screen mesh count and characteristics of printed material was also considered. The research includes analysis of basic print quality attributes: colour reproduction and macro non-uniformity. The results of the research point out that increasing the number of washing treatments causes significant colour differences between treated and untreated samples. Colour differences caused by printing screen mesh count were also noticed, as well as the influence of the washing treatments and substrate characteristics influence on macro non-uniformity of printed samples.
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This paper will discuss research concerning the influence of the number of ink layers deposited by ink jet for textile printing. With the aim to establish the optimal number of layers as to achieve good quality prints, it discusses the good colourfastness during longer time period and exposure to different environmental factors including temperature, light etc. Three typical materials with the same raw material compositions, but different fabric weight and thread count were chosen and printed with digital ink jet technology. Materials were printed with variations in the ink layers number and the correlation between K/S factor and number of applied ink layers was determined after the printing process. Upon finished printing process, the samples were treated with heat, light and other simulated environmental influences in line with the appropriate international standards. The changes were detected by common visual ranking methods (gray scale and blue wool reference scale) as well the spectrophotometric measurements for obtaining spectral data of the colourfastness and staining, what was followed by additional testing of the heating element with thermo vision camera. Microscopic view of the changes on the printed surfaces upon exposing them to different simulated factors was obtained by SEM microscope. It can be concluded that increase of printed ink layers will lead to a better quality of final product in terms of resistance to various environment influences. This research offers insight in the influence of one parameter in textile materials printing process on longevity of flag products, which can also be applied to any other product printed on polyester material.
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The paper discusses the impact of heat treatment on selected characteristic group of textile materials printed in digital ink jet technology. In the theoretical considerations the key findings of relevant research related to quality control associated with the difference in color prints on various textile substrates that were subjected to heat treatment have been analyzed. Further analysis has been done in the proposed color models and color difference calculations, as well in the changes in the structure of the used materials after the heat treatment. For the characterization of the materials four different textile materials have been used. The materials were printed using digital ink jet technology, and the appropriate color gamut through the use of ICC profiles was determined with a spectrophotometer. The printed materials were thermally treated within a predefined temperature interval, and a thermal imaging camera was used to obtain images of the surface temperature conditions of the heated surface. For the appropriate temperatures color differences were calculated in the selected standard color space (CMC 2:1), and all changes in the color range through the variation in the color gamut was analyzed. For investigating the changes for the printed and heat treated textile materials structures SEM recordings were used. The obtained results and their analysis have confirmed some earlier researches and theoretical backgrounds
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This monograph provides a technology overview dealing specifically with developments in ink jet mechanisms, digital printing machines, inks for printing textiles, substrates and colour management. In addition, this issue deals with the application for these technologies in terms of markets and new product development, addressing areas where digital technologies provide innovative solutions to existing problems and also a launch-pad for further innovation. Textile digital printing emerged in the 1990s as a prototyping tool and a vehicle for printing small batches of fabric for niche market products. Developments over the past 5 years have been dramatic, with major practitioner conferences in the U.S. and in Europe, and a specialist trade press journal. We are now at the stage where all the ingredients are present for producing commercial print runs, but there are still many hurdles to jump for digital printing technologies to make an impact in world markets. This monograph reviews the technological issues and sets these in a wider commercial context. It explains how new markets have being successfully created and how digital printing technologies have provided a springboard for product innovation.