The relations between drying system and web tension in shaft-less drive gravure printing system

2017 ◽  
Author(s):  
Kui He ◽  
Shanhui Liu ◽  
Qing Wen ◽  
Jian Li
Keyword(s):  
Gravure Printing ◽  
Printing System ◽  
Drying System ◽  
Web Tension

scholarly journals Effect of environment temperature on web tension in shaft-less drive gravure printing system

2019 ◽  
Vol 11 (2) ◽  
pp. 168781401881687
Author(s):  
Kui He ◽  
Shanhui Liu ◽  
Kedian Wang ◽  
Xuesong Mei
Keyword(s):  
Gravure Printing ◽  
Environment Temperature ◽  
Printing System ◽  
Web Tension

Highly stable flex sensors fabricated through mass production roll-to-roll micro-gravure printing system

2015 ◽  
Vol 236 ◽  
pp. 73-81 ◽  
Author(s):  
Memoon Sajid ◽  
Hyun Woo Dang ◽  
Kyoung-Hoan Na ◽  
Kyung Hyun Choi
Keyword(s):  
Mass Production ◽  
Gravure Printing ◽  
Roll To Roll ◽  
Printing System ◽  
Flex Sensors

scholarly journals An investigation on printability of different solvent based inks by gravure printing onto various substrates

2020 ◽  
Vol 11 (2) ◽  
pp. 31-36
Author(s):  
Arif Ozcan ◽  
◽  
Rasim Zulfigaroglu ◽  
Keyword(s):  
Isopropyl Alcohol ◽  
Testing Machine ◽  
Substrate Material ◽  
Print Quality ◽  
Gravure Printing ◽  
Printing System ◽  
Intaglio Printing ◽  
Main Factors ◽  
Printed Materials ◽  
Alcohol Ethyl

Gravure printing is an intaglio printing process, the image to be printed is engraved on the surface of the gravure cylinder, so that the image to be printed is embedded into the surface. The places engraved in the cylinder during printing are filled with ink, surplus of ink is stripped by a blade and separated for reuse. Print quality consistency and efficiency is high in gra-vure printing. It is also possible to print on different substrates. Ink systems, viscosity, surface properties of substrate material and dot structures on the gravure cylinder are the main factors that determine the print quality. Appropriate inks can be chosen depending on the material to be printed and finished product used area. Mostly solvent based inks are used. The aim of this study is to determine the solvent that can enable higher quality printing on different substrates, which are frequently used in the gravure printing system, and to investigate the conditions under which the ink-sub-strates interface relationship can be the best in terms of printability.In this study, IGT F1 laboratory type gravure testing machine was used. Polyethylene and polypropylene printable films are used as the substrate materials. Three different solvent-based inks are used, prepared with ethyl alcohol, ethyl acetate and isopropyl alcohol. Density, contact angle, surface energy and gloss properties of the printed materials were examined. The printability properties of selected substrates and inks have been determined.

Manufacturing ultra-high-frequency radio frequency identification tag antennas by multilayer printings

2009 ◽  
Vol 224 (1) ◽  
pp. 149-156 ◽  
Author(s):  
B-O Choi ◽  
C H Kim ◽  
D S Kim
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Gravure Printing ◽  
Offset Printing ◽  
Printed Antennas ◽  
Ultra High Frequency ◽  
Frequency Identification ◽  
Printing System ◽  
Printing Method

In spite of the advantages of high throughput and a low manufacturing cost conferred by the gravure printing method, it has been shown that antennas printed using the gravure printing method do not offer satisfactory performance because of the limitations of the conductive materials used as ink. In this article, a roll-to-roll gravure-offset printing system is proposed for the manufacturing of printed ultra-high frequency radio frequency identification (RFID) tag antennas. Antennas printed using the multi-layer gravure-offset system are also demonstrated with their performances. The gravure-offset printing system mainly consists of three printing parts, i.e. drying units, vision systems, and register control systems for multi-layer printings. In the identification range test using an RFID reader, compared to the conventional RFID tags with copper-etched antennas, which show the identification range of about 3.2 m on average, the three-layer printed antennas with bonded tag chips exhibit the identification range of about 1.8 m on average (i.e. the performance of about 60 per cent of conventional copper-etched antennas), which implies that the printed antennas could be applicable to real fields.

Analysis and Structure Optimization of the Wind Distribution of Nozzle in the Gravure Printing Drying System

2015 ◽  
Vol 731 ◽  
pp. 411-415
Author(s):  
Xin Zheng ◽  
Yan Fei Gao
Keyword(s):  
Simulation Analysis ◽  
Structure Optimization ◽  
Hydrodynamic Theory ◽  
Air Distribution ◽  
Gravure Printing ◽  
Heated Air ◽  
Drying System ◽  
Wind Distribution ◽  
Printing Machine ◽  
Crosswind Landing

The drying system plays an important role in printing speed and energy consumption of gravure printing machine. Nozzle is a factor which decides heated air distribution in drying system finally. This research makes a model for the structure of nozzle and takes a numerical simulation analysis of heated air field with hydrodynamic theory. The defect of structure is found through the distribution of velocity, temperature and trajectories. A crosswind landing area is added around outlet area of nozzle. In this study, it is evaluated that the distribution of the wind field. It is found that the velocity and pressure of heated air in the vortex area between substrate and nozzle by the cross-wind board can be improved from the simulation results. The study has significance on optimizing the structure of nozzle and improving efficiency of drying system.

Research on Drying System Based on the Lower Explosion Limit

2015 ◽  
Vol 731 ◽  
pp. 407-410
Author(s):  
Ji Mei Wu ◽  
Qiu Min Wu ◽  
Yan Feng Li ◽  
Zhi Cheng Xue ◽  
Yu Ling Zhang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Solvent Evaporation ◽  
Gravure Printing ◽  
Printing Process ◽  
Volatile Solvents ◽  
Drying System ◽  
Explosion Limit ◽  
Saving Effect ◽  
And Control ◽  
Monitor And Control

In gravure printing process, it is easy to trigger an explosion for the explosive volatile solvents of drying system accumulated. In this paper, the lower explosion limit (LEL) is introduced to drying system of the gravure press, and the LEL value is calculated. Then added the LEL sensor to the drying system to monitor and control the concentration of gas in the solvent evaporation. Finally, the structure of the drying system is optimized. It is showed that the consumption of the steam is reduced sharply, the drying system has pronounced energy-saving effect, and operated more steadily and more efficiently.

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