Some factors affecting ink transfer in gravure printing

2002 ◽  
Vol 31 (4) ◽  
pp. 234-240 ◽  
Author(s):  
S. Elsayad ◽  
F. Morsy ◽  
S. El‐Sherbiny ◽  
E. Abdou
Keyword(s):  
Gravure Printing ◽  
Factors Affecting ◽  
Ink Transfer

Study about Influencing of Printing Process on Gravure Printing Ink Transfer

2013 ◽  
Vol 469 ◽  
pp. 301-304
Author(s):  
Pu Jun Deng ◽  
Wei Fang ◽  
Jian Dong Lu
Keyword(s):  
Quantitative Analysis ◽  
Process Conditions ◽  
Gravure Printing ◽  
Line Number ◽  
Printing Process ◽  
Ink Transfer ◽  
Printing Processes ◽  
Printing Ink ◽  
Influence Degree ◽  
Printing Speed

Abstract. Gravure printing has the characteristics including thick ink layer, bright and homochromatic color, rich and sharp tone, and strong stereoscopic impression. In the packaging-printing field, gravure printing gets more and more attentions. But in the region of gravure printing process, the study on gravure printing ink transfer is not as deep as offset print. Most researches just stay in the level of qualitative analysis, but the quantitative analysis researches are still insufficient. The factors which impact gravure printing ink transfer are not only the volume of engraving ink cell, but also printing process. In this paper, gravure printing ink transfer is analyzed quantitatively from the point of views of gravure printing pressure, printing speed, scraping blade pressure and ink viscosity. The following research has been done in this paper. Firstly, electronic engraving machine is used to engrave eight different area ink cells by 45° ink cell angle and 70lpc screen line number on the same gravure roller. Secondly, gravure proofing machine is used to make proofs in different process conditions. Thirdly, density meter is used to determine density of cell ink, and balance is used to determine the weight of ink which moves from the plate onto the paper. Finally, to analyze the influence of different printing processes on gravure printing ink transfer. The research results show that gravure printing ink transfer is influenced certainly by different printing processes. Printing process has a certain influence on the gravure printing ink transfer, and the influence degree of different dot area rate of cell is different. The doctor blade pressure and ink viscosity influence greatly gravure printing ink transfer.

scholarly journals Investigation of Roll-to-Roll Gravure Printing for Printed Electronics with Fine Features

2020 ◽  
Vol 9 (2) ◽  
pp. 79-89
Author(s):  
S.H. Chen ◽  
S.T. Pua ◽  
Z.W. Zhong ◽  
X.C. Shan
Keyword(s):  
Printed Electronics ◽  
Viscoelastic Behavior ◽  
High Viscosity ◽  
Small Scale ◽  
Gravure Printing ◽  
Large Area ◽  
Current Standard ◽  
Setup Cost ◽  
Ink Transfer ◽  
Printing Speed

Gravure printing is known to be cost competitive in manufacturing of printed electronic devices due to its capability to mass produce at lower costs. Current standard of gravure printed feature sizes is in a range of around 50 μm down to sub-10 μm, predominantly through small scale setups and specialized engraving. However, reliance on gravure cell design limits the scalability of printing over a large area due to the setup cost. In this study, ink viscoelastic behavior was modified to improve replication of gravure printed features over a large printing area of 300 mm web-width without a reduction in gravure cell dimension. Fine lines were printed using a high viscosity ink with a good replication of the nominal line width. Control over the printed features was performed through the variation of printing speed and the alteration of ink viscosity. The effects of ink viscosity and printing speed on the printed ink particle distribution and size were also examined. New methodologies of characterizing ink transfer were also developed to help understand the ink transfer processes: mass transfer and particle transfer. A deeper understanding of the thixotropic effect and shear recovery behavior of inks was achieved through simulations of shearing conditions.

Influence of Screen Ruling and Engraving Needle Tip Angle on Ink Transfer for Gravure

2010 ◽  
Vol 174 ◽  
pp. 215-218 ◽  
Author(s):  
Pu Jun Deng ◽  
Gai Mei Zhang ◽  
Yu Wang ◽  
Wei Fang
Keyword(s):  
Standard Test ◽  
Gravure Printing ◽  
Uniform Thickness ◽  
Printing Quality ◽  
Dot Gain ◽  
Ink Transfer

Gravure printing is widely applied in packaging printing and the ink transfer is very important for printing quality. Ink transfer affects the ink uniform, thickness and dot gain, so it is necessary to optimize the parameter of the gravure plate making. At present, some investigations are developed for the ink transfer only qualitatively. In this paper, the influence of screen ruling and engraving needle tip angle on ink transfer is researched experimentally. Firstly, the standard test gravure plate was prepared, and then the gravure plates are engraved at different parameter combining the screen ruling and engraving needle tip angle. Finally, the printing samples are obtained, from which the transfer amount and the density are measured. This paper, the amount of ink transfer and the density are investigated, and the results show that screen ruling and engraving needle tip angle affect the ink transfer amount.

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