scholarly journals Design to Achieve Accuracy in Ink-Jet Cylindrical Printing Machines

Machines ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 6 ◽  
Author(s):  
Ivan Arango ◽  
Catherine Cifuentes
Keyword(s):  
Phase Diagram ◽  
Inkjet Printing ◽  
New Technology ◽  
Industrial Sector ◽  
Ink Jet ◽  
Inkjet Printers ◽  
Manufacturing Tolerances ◽  
Technological Limitations ◽  
Parallel Distribution ◽  
Accumulated Error

Machines for direct digital inkjet printing on cylindrical containers are a new technology out on the market. The commercialization in the industrial sector has been affected by their high precision. This led to the use of mechanisms with narrow manufacturing tolerances and to the searches for topologies that have the least accumulated error without affecting quality. Machines with topologies that work on flat substrates have printing and productivity problems working on cylindrical substrates. This research paper presents the qualitative design of direct digital inkjet printers working over cylindrical substrates comparing five mechanical topologies; three topologies with radial distribution and two topologies with parallel distribution. The aim of these topologies is to find the precision, quality and efficiency of the printer taking into account the restrictions present in its construction. Each topology has separate constitutive mechanisms, the tolerance ranges between the movements of the print head and the substrate in order to determine precision are analyzed. Out of the five topologies described and analyzed in the phase diagram in section 3, three of them meet the requirements. One of the three topologies that meet the requirements is not being developed due to current technological limitations.

scholarly journals Design to Achieve Accuracy in Ink-Jet Cylindrical Printing Machines

2018 ◽  
Author(s):  
Ivan Arango ◽  
Catherine Cifuentes
Keyword(s):  
High Precision ◽  
Inkjet Printing ◽  
New Technology ◽  
Industrial Sector ◽  
Ink Jet ◽  
Manufacturing Tolerances ◽  
Inkjet Printer ◽  
Technological Limitations ◽  
Parallel Distribution ◽  
Accumulated Error

Machines for direct digital inkjet printing on cylindrical containers are a new technology out on the market. Their commercialization in the industrial sector has been affected by their high precision. This leads to the use of mechanisms with narrow manufacturing tolerances and to the search for topologies that have the least accumulated error without affecting quality. Machines with topologies to work on flat substrates have printing and productivity problems working on cylindrical substrates. This research paper presents the qualitative design of a direct digital inkjet printer working over cylindrical substrates comparing five mechanical topologies; three topologies with radial distribution and two topologies with parallel distribution. The aim of these topologies is to find the precision, quality and efficiency of the printer taking into account the restrictions present in its construction. Each topology has separate constitutive mechanisms, it is analyzed the tolerance ranges between the print head and the substrate whose cumulative error maximizes the inkjet print resolution to determine precision. From five Topologies, number 1, 2 and 5 meet the requirements. the topology 2 meets the requirements but it is not able to be developed due to current technological limitations.

Effect of Sintering Atmosphere on the Electrical and Thermal Properties of Al-Doped ZnO Thin Films Prepared Using Inkjet Printing Method

2015 ◽  
Vol 793 ◽  
pp. 440-444
Author(s):  
J.H. Lim ◽  
Cheow Keat Yeoh ◽  
Chik Abdullah ◽  
Pei Leng Teh
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Thermal Properties ◽  
Inkjet Printing ◽  
Zno Thin Films ◽  
Al Doping ◽  
Sintering Atmosphere ◽  
Ink Jet ◽  
Jet Printing ◽  
Doped Zno

Al-doped ZnO thin films were prepared by ink-jet printing and their electrical and thermal properties with different amounts of Al doping and sintering atmosphere were investigated. The XRD traces of films show the doped materials did not form additional crystalline phases with increasing amounts of Al doping. Electrical conductivity of film increased from 4.86 S/cm to 120.94 S/cm as the amounts of Al doping increased from 0 wt% to 4 wt%. However, the thermal conductivity decreased from 24 W/mK to 13 W/mK with increasing the Al doping from 0 wt% to 4 wt%. The electrical conductivity of film shows higher values sintered in vacuum (120.94 S/cm) compared to film sintered in air (114.1 S/cm).

Indium plated carbon nanotubes pattern on flexible substrate defined by ink-jet printing

2013 ◽  
Vol 1505 ◽  
Author(s):  
Pingye Xu ◽  
Michael C. Hamilton
Keyword(s):  
Carbon Nanotubes ◽  
Inkjet Printing ◽  
Flexible Substrate ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing ◽  
Rf Performance ◽  
Interconnect Material

ABSTRACTCarbon nanotubes patterns of micron-level resolution have been achieved using inkjet printing of DNA and SDS assisted CNT dispersions. DNA/CNT film has a significantly higher resistance compared to SDS/CNT film. Taking advantage of the porous nature of printed SDS/CNT film after SDS removal, indium can be electroplated to fill the CNT network and form a CNT/In composite. The CNT/In composite was used as interconnect material. Reworkability and RF performance of In-plated CNT bump structures are studied and the results are presented.

scholarly journals Added values of the local timbers materials for main bridge frame structures utilizing laminating composites technology

2020 ◽  
Vol 2 (1) ◽  
pp. 50-58
Author(s):  
Ari Sandhyavitri ◽  
Fakhri Fakhri ◽  
Rizki Ramadhan Husaini ◽  
Indra Kuswoyo ◽  
Manyuk Fauzi
Keyword(s):  
Modulus Of Elasticity ◽  
New Technology ◽  
Laminated Composite ◽  
Industrial Sector ◽  
Laboratory Test Results ◽  
Bridge Structures ◽  
Alternative Material ◽  
Local Materials ◽  
Main Bridge

The objectives of this article are to seek the opportunity to enhance the local Indonesia timber material physical performances (encompassing the low-class quality of III and IV timbers with the Modulus of Elasticity (MOE) = 5,000 - 9,000 MPa) utilizing laminated composite technology to become higher-class timber quality (class II) with the Modulus of Elasticity (MOE)> 15,000 MPa so that it can be used as an alternative material for constructing the bridge mainframe structures (girder beams) especially for the Indragiri Hilir regency, Riau Province, Indonesia. This regency needs several hundred small-medium bridges for connecting 20 districts, 39 wards, and 197 villages using local materials such as local timbers. This laminating technology is not a new technology but the utilization of this technology for constructing the main bridges structures is challenging and limited to the implementation in the civil construction industrial sector. This study composed 2 types of the low-class quality (lcq) of timber materials (such as Shorea sp and Shorea peltata Sym) and 2 types of medium class-quality (mcq) ones (Dipterocarpus and Calophyllum) for constructing the main bridge structures. Based on the laboratory test results utilizing 80% of lcq materials and 20% mcq ones, these composite timber materials may increase the timbers MOE by 145% to 166% from the existing MOE value of the mcq solid timbers. Based on the simulations these laminated composites wooden bridge girders 2 x (70x20) m2, these timber materials have passed all the tests and the application of this technology may improve the lcq timber values and it could be used for an alternative material of the bridge girder's main structures.

MULTIPHASE MICRO-DROP INTERACTION IN INKJET PRINTING OF 3D STRUCTURES FOR TACTILE MAPS

2005 ◽  
Vol 19 (28n29) ◽  
pp. 1699-1702
Author(s):  
KAFEEL AHMED ◽  
DON McCALLUM ◽  
DEREK F. SHELDON
Keyword(s):  
Inkjet Printing ◽  
Liquid Drop ◽  
Solid Substrate ◽  
Light Emitting ◽  
Drop Coalescence ◽  
3D Objects ◽  
Ink Jet ◽  
Novel Method ◽  
Tactile Maps ◽  
And Control

Ink-jet technology is a novel method for rapid deposition of accurately measured material with high precision. Consequently it has been used for applications such as, deposition of light emitting polymers and more recently for fabricating 3D objects and micro-mechanical structures. Ink-jet technology is also being applied to produce tactile maps for the visually impaired. The efficiency of the tactile maps, as outlined by psychophysical and cartographic studies of haptics, depends on its 3D features. To comprehend and control these features, detailed understanding of interaction amongst micro-drops, which are typically 50μm in diameter, is imperative. Multiphase interaction takes place between each liquid drop at impact with liquid or solid cured drops (deposited previously) and the solid substrate in an envelop of air. The behavior of micro-drops with regards to surface tension, drop coalescence among liquid and solid drops, drop impact kinetics, wettability, surface energy and drop spread has been analyzed using a computational model.

Graphene Oxide for Ink-Jet Printing Technology

2015 ◽  
Vol 748 ◽  
pp. 77-80 ◽  
Author(s):  
Ya Ling Li ◽  
Xi Guo ◽  
Xiao Juan Feng ◽  
Lu Hai Li
Keyword(s):  
Surface Tension ◽  
Graphene Oxide ◽  
Zeta Potential ◽  
Inkjet Printing ◽  
Laser Scanning Microscopy ◽  
Average Particle ◽  
Printing Technology ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing

In order to acquire a suitable ink for ink-jet printing technology, a graphene oxide ink was explored based on the GO aqueous dispersion. The GO dispersion was characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The average particle diameter and zeta potential of the GO dispersion was determined by zeta potential & particle size analyzer. The GO ink is composed of 1,2-propanediol, diethylene glycol monobutyl ether, glycerol, polyvinyl pyrrolidone (PVP) and GO dispersion. The surface tension and viscosity of the GO ink was tested by surface tension meter and rheometer. The GO ink was inkjet printed on polyethylene terephthalate (PET) substrate. The optimal inkjet printing parameters were obtained and the printing quality was characterized by confocal laser scanning microscopy. The results show that the GO ink is suitable for inkjet printing technology and the morphology of the GO film with one printing pass has good uniformity.

Forward electrohydrodynamic inkjet printing of optical microlenses on microfluidic devices

Lab on a Chip ◽  
2016 ◽  
Vol 16 (2) ◽  
pp. 326-333 ◽  
Author(s):  
V. Vespini ◽  
S. Coppola ◽  
M. Todino ◽  
M. Paturzo ◽  
V. Bianco ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Microfluidic Devices ◽  
Ink Jet Printing ◽  
Material Type ◽  
Ink Jet ◽  
Jet Printing ◽  
Novel Method

We report a novel method for direct ink-jet printing of viscous polymers based on a pyro-electrohydrodynamic repulsion system capable of overcoming limitations of previous classical EHD ink-jet printing on the material type, geometry and thickness of the receiving substrate.

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

2012 ◽  
Vol 200 ◽  
pp. 676-680 ◽  
Author(s):  
Jing Mei Sun ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Inkjet Printing ◽  
Great Influence ◽  
Tail Length ◽  
Ink Jet Printing ◽  
Printing Quality ◽  
Ink Jet ◽  
Jet Printing ◽  
Different Levels ◽  
The Way

Piezoelectric Inkjet Printing is the main ink-jet printing at present, and drop state will have great influence to ink-jet printing quality, so the ink-jet drop state of edible ink is researched based on piezoelectric inkjet printing. The viscosity of the ink is adjusted by the way of adding different levels of resin, and then the samples which have different viscosity are got. Drop state is observed through drops observatory which installs Spectra Polaris nozzle (35pl), then the speed, volume, tail length and roundness of the drops are measured at certain moment in order to evaluate the influence of viscosity to ink-jet drop state. The result shows that viscosity has big influence to ink-jet drop state, when the viscosity becomes larger, the speed of drops becomes smaller, the variation of volume is not so obvious, the tail length of drops becomes smaller and roundness becomes larger accordingly, until the viscosity is 10mPa•s, the tail length is the smallest and roundness is the biggest, the drop state is the best , when viscosity is bigger than 10mPa•s, the tail length will become bigger and roundness smaller.

Ink-jet printed carbon-based micro-supercapacitor for mobile self-powered modules

2008 ◽  
Vol 1127 ◽  
Author(s):  
Magali Brunet ◽  
Pierre-Louis Taberna ◽  
Patrice Simon ◽  
Norbert Fabre ◽  
Véronique Conédéra ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Storage Device ◽  
Carbon Electrodes ◽  
Power Losses ◽  
Capacitance Density ◽  
Ink Jet ◽  
Inkjet Printing Technology ◽  
Self Powered ◽  
Good Homogeneity ◽  
Carbon Based

ABSTRACTCarbon-based micro-supercapacitors dedicated to energy storage in self-powered modules were fabricated with inkjet printing technology on silicon substrate. The ink containing activated carbon with particles size ranging from 1 μm to 10 μm, mixed with PTFE and glycol was stabilised with a surfactant, Triton X100. After functionalising the electrodes surroundings with octadecyltrichlorosilane (OTS), the ink was deposited by inkjet on the electrodes with the substrate heated at 140°C in order to assure a good homogeneity. The resulting structures have a resolution of 10 μm. Micro-supercapacitors with the carbon electrodes were tested in acetonitrile and Et4NBF4 dried salts: the capacitance density obtained was 50 μF.cm−2. The newly developed technology will allow the integration of the storage device as close as possible as the MEMS-based energy harvesting device, minimising power losses through connections.

scholarly journals The Impact of Technological Development on Jordanian Industrial Sector

2016 ◽  
Vol 11 (4) ◽  
pp. 291
Author(s):  
Mahmoud F. AL-Refai ◽  
Samer Abdelhadi ◽  
Adli A. Al-Qaraein
Keyword(s):  
Positive Impact ◽  
Technological Development ◽  
New Technology ◽  
Industrial Sector ◽  
Production Costs ◽  
Technological Advancement ◽  
Substantial Progress ◽  
Technological Capital ◽  
The Unemployed ◽  
The Impact

<p>The technological advancement being considered as an essential core of economic development, whereby the introduction of new technology will not only reduce production costs, but could also lead to increasing the efficiency of production processes. Jordan is one of those countries that had made substantial progress in implementing new technology in various sectors, which reflected in a positive way on the Jordanian economy. This study aims to identify the effects of technological development on the industrial sector in Jordan during the period (1990-2014), and its role in the development and increase in the volume of industrial production in order to achieve self-sufficiency and providing job opportunities for the unemployed. The analysis used the method of Vector Error Correction Model (VECM) in estimating a function of the Cobb Douglas production. The study concluded that technology has a positive impact on the industrial sector in Jordan, and that the technological capital should be more intensive in the long term.</p>

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