scholarly journals Preparation of Ink-Jet Inks with Quinizarin as “Antifraud Marker” for Textile Digital Printing

2020 ◽  
Vol 3 (9) ◽  
pp. 175-182
Author(s):  
 E. K. Karanikas ◽  
N. F. Nikolaidis
Keyword(s):  
Digital Printing ◽  
Ink Jet

Evaluation of Quality for Ink-Jet Printing Based on Capturing Measurement and Control Elements by CCD

2010 ◽  
Vol 174 ◽  
pp. 211-214 ◽  
Author(s):  
Zhen Liu ◽  
Jian Hong ◽  
Sheng Hui Li
Keyword(s):  
Detection Method ◽  
Rapid Development ◽  
Digital Printing ◽  
Ink Jet Printing ◽  
Quality Detection ◽  
Printing Quality ◽  
Ink Jet ◽  
Jet Printing ◽  
And Control ◽  
Measurement And Control

with the rapid development of digital printing, the method and standard of quality detection for digital printing become focus of research. The main work and innovations in this paper include: ①Computer image analysis method was applied to ink-jet printing quality detection for the first time; ②Compared with traditional printing quality test, ink dot, line, color patch and MTF (Modulation Transfer Function) were selected as measurement and control elements. And the test proofs for detecting printing quality were designed; ③The detection algorithm and the overall detection process were put forward in this paper. The result of the experiment demonstrates: the detection method based on capturing measurement and control elements by CCD can accurately accomplish the objective quality evaluation for ink-jet printing. Detection method of print was improved to extend the scope of detection by this research, which could be generalized as a standard method for the detection of ink-jet printing quality.

Research on the Influence of Ink Surface Tension to the Formation of Ink Droplet

2012 ◽  
Vol 262 ◽  
pp. 329-333
Author(s):  
Chun Jiang Jia ◽  
Guang Xue Chen ◽  
Xiao Zhou Li ◽  
Lei Zhao
Keyword(s):  
Mathematical Model ◽  
Surface Tension ◽  
Substrate Surface ◽  
Digital Printing ◽  
Satellite Droplet ◽  
Ink Jet Printing ◽  
Print Head ◽  
Ink Jet ◽  
Jet Printing ◽  
The Relationship

Ink jet printing, as the key point of digital printing development, has already got some progress as technical be concerned, and also it has been used in industrial producing. But until now, ink jet printing still has some problems to be solved, include satellite droplet, droplet dimension, and spreading of droplet on substrate and so on. These problems involving parameters include dimension and geometry of the print-head, quality and characteristics of the control signal, surface tension of the ink, viscosity of the ink, characteristics of the substrate surface and so on. In this paper we just analysis the influence of ink surface tension to the process from jet to formation of the droplet by establishing mathematical model, but keep other parameters unchanged. At last, we get the relationship between ink surface tension and droplet parameters, so that it can be used as theoretical basement for print-head design and researching of ink.

scholarly journals Influence of primers on the optical characteristics of ink-jet imprints

Mechanika ◽  
2020 ◽  
Vol 26 (4) ◽  
pp. 360-364
Author(s):  
Kęstutis Vaitasius ◽  
Svitlana HAVENKO ◽  
Svitlana KHADZHYNOVA ◽  
Konrad OLEJNIK ◽  
Edmundas Kibirkštis
Keyword(s):  
Great Influence ◽  
Digital Printing ◽  
Wide Field ◽  
High Quality ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing ◽  
Digital Ink ◽  
Pigment Ink

The quality of ink-jet printing depends to a large extent on the technical characteristics of the selected equipment and the surface properties of the printed substrates. It is known that for digital printing it is necessary to use expensive paper with a special coating that determines the degree of gloss of the surface. Therefore, ordinary offset papers before ink-jet printing are covered with primers that ensure good fixation of pigment ink or dye on paper, a wide field of color coverage, characteristic gloss, which generally contribute to high quality of imprints. As you can see, the type of the substrate and the state of its surface has a very great influence on the quality of the imprints. Result of the research, it has been confirmed that not only expensive paper of a special purpose can be used for a drop ink-jet digital printing. High-quality color imprints can also be obtained on ordinary offset and coated paper, coated before printing with special primers based on interpolymeric complexes of polyvinyl alcohol, which will provide sufficient optical density, contrast of images, and expand the possibilities of digital ink-jet printing.

Novel digital printing ink-jet inks with “antifraud markers” used as additives

2012 ◽  
Vol 75 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
E.K. Karanikas ◽  
N.F. Nikolaidis ◽  
E.G. Tsatsaroni
Keyword(s):  
Digital Printing ◽  
Ink Jet ◽  
Printing Ink

Influence of the Surface Tension of Edible Ink to Piezoelectric Ink-Jet Printing Drop State

2012 ◽  
Vol 184-185 ◽  
pp. 267-270
Author(s):  
Jing Mei Sun ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Surface Tension ◽  
Tail Length ◽  
Digital Printing ◽  
Generation Process ◽  
Printing Technology ◽  
Spherical Drop ◽  
Ink Jet Printing ◽  
Printing Quality ◽  
Ink Jet ◽  
Jet Printing

Ink-jet printing technology is the mainstream of digital printing, and piezoelectric ink-jet printing is the main ink-jet printing at present, besides, drop’s injection and controlling technology is the key to the development of ink-jet printing technology. The surface tension plays an important role in the drop’s generation process, it will restrict the length and the state of the drop, further influence ink-jet printing quality. Six edible ink samples with different surface tension are prepared in order to research the influence of the surface tension to the piezoelectric inkjet Printing drop state, then the drop state is observed and its speed and volume are measured through drops observatory. The result shows that the speed of drop is higher if the ink’s surface tension is lower, but the drop is easier to gather into spherical drop and it also has smaller tail length and bigger volume.

Oriented Luminescent Nanostructures From Single Molecules Of Conjugated Polymers

2003 ◽  
Vol 771 ◽  
Author(s):  
Adosh Mehta ◽  
Pradeep Kumar ◽  
Jie Zheng ◽  
Robert M. Dickson ◽  
Bobby Sumpter ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Polarization Anisotropy ◽  
Emission Pattern ◽  
Spectral Signatures ◽  
Dipole Emission ◽  
Ink Jet ◽  
Molecular Scale ◽  
Jet Printing ◽  
Photochemical Stability ◽  
Printing Techniques

AbstractDipole emission pattern imaging experiments on single chains of common conjugated polymers (solubilized poly phenylene vinylenes) isolated by ink-jet printing techniques have revealed surprising uniformity in transition moment orientation perpendicular to the support substrate. In addition to uniform orientation, these species show a number of striking differences in photochemical stability, polarization anisotropy,[1] and spectral signatures[2] with respect to similar (well-studied) molecules dispersed in dilute thin-films. Combined with molecular mechanics simulation, these results point to a structural picture of a folded macromolecule as a highly ordered cylindrical nanostructure whose long-axis (approximately collinear with the conjugation axis) is oriented, by an electrostatic interaction, perpendicular to the coverglass substrate. These results suggest a number of important applications in nanoscale photonics and molecular-scale optoelectronics.

Sign in / Sign up

Export Citation Format

Share Document