Nano-Sized Ceramic Inks for Drop-on-Demand Ink-Jet Printing in Quadrichromy

2008 ◽  
Vol 8 (4) ◽  
pp. 1979-1988 ◽  
Author(s):  
Davide Gardini ◽  
Michele Dondi ◽  
Anna Luisa Costa ◽  
Francesco Matteucci ◽  
Magda Blosi ◽  
...  
Keyword(s):  
Surface Tension ◽  
Particle Size ◽  
Ceramic Tiles ◽  
Nozzle Clogging ◽  
Ink Jet Printing ◽  
Drop On Demand ◽  
Wide Range ◽  
Ink Jet ◽  
Long Time ◽  
Jet Printing

Nano-sized ceramic inks suitable for ink-jet printing have been developed for the four-colours CMYK (cyan, magenta, yellow, black) process. Nano-inks of different pigment composition (Co1–xO, Au0, Ti1–x–ySbxCryO2, CoFe2O4) have been prepared with various solid loadings and their chemico-physical properties (particle size, viscosity, surface tension, ζ-potential) were tailored for the ink-jet application. The pigment particle size is in the 20–80 nm range. All these nano-suspensions are stable for long time (i.e., several months) due to either electrostatic (high ζ-potential values) or steric stabilization mechanisms. Both nanometric size and high stability avoid problems of nozzle clogging from particles agglomeration and settling. Nano-inks have a Newtonian behaviour with relatively low viscosities at room temperature. More concentrated inks fulfil the viscosity requirement of ink-jet applications (i.e., <35 mPa˙s) for printing temperatures in between 30 and 70 °C. Surface tension constraints for ink-jet printing are fulfilled by nano-inks, being in the 35–45 mN˙m–1 range. The nano-sized inks investigated behave satisfactorily in preliminary printing tests on several unfired industrial ceramic tiles, developing saturated colours in a wide range of firing temperatures (1000–1200 °C).

Influence of Ink Performance on Ink-Jet Printing Quality

2013 ◽  
Vol 469 ◽  
pp. 348-353 ◽  
Author(s):  
Hai Ying Tian ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Surface Tension ◽  
Active Agent ◽  
Apparent Depth ◽  
Print Quality ◽  
Ink Jet Printing ◽  
Printing Quality ◽  
Ink Jet ◽  
Apparent Color ◽  
Jet Printing

The era of environmental protection and personalization has become increasingly prominent, and people not only focus on the beauty of the design, but also pay more attention to the quality of the clothing. For inkjet printing, the viscosity and surface tension of ink are major factors that affect the quality of ink-jet printing. In order to obtain a better print quality, the samples of five different viscosity and surface tension of ink were prepared respectively by changing the content of the resin and the surface active agent. Using these samples to print on the fabric by Epson printer, and to discuss the influence of the ink in different viscosity and surface tension on the ink-jet printing quality, such as apparent color depth (K / S), color parameters (L, C), permeability, clarity. The results showed that: with the increase of the ink viscosity, the apparent depth of color yield increased gradually and became darker in color. L value decreased gradually and had a increasing trend, and tends to be stable. C value increased and vividness of the color was improved. And it also had a certain impact on the infiltration resistance and clarity. Surface tension also had a significant impact on the depth of the apparent color, vividness of the color and directly affected the ink permeability and clarity.

scholarly journals Superconducting HfO2-YBa2Cu3O7−δ Nanocomposite Films Deposited Using Ink-Jet Printing of Colloidal Solutions

Coatings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 17 ◽  
Author(s):  
Hannes Rijckaert ◽  
Pablo Cayado ◽  
Rainer Nast ◽  
Javier Diez Sierra ◽  
Manuela Erbe ◽  
...  
Keyword(s):  
Nanocomposite Films ◽  
Pinning Force ◽  
Colloidal Solutions ◽  
Ink Jet Printing ◽  
Drop On Demand ◽  
Ink Jet ◽  
Jet Printing ◽  
Printing Parameters ◽  
Critical Current Density Jc ◽  
Pinning Properties

To reduce the fabrication costs while maximizing the superconducting and pinning properties of YBa2Cu3O7−δ (YBCO) nanocomposite films, the drop-on-demand ink-jet printing technique was used to deposit colloidal YBCO inks onto LaAlO3 substrates. These inks containing preformed HfO2 nanocrystals were carefully adjusted, prior to the jettability, as the droplet formation depends on the rheological properties of the inks themselves. After carefully adjusting printing parameters, 450-nm thick pristine YBCO films with a self-field critical current density (Jc) of 2.7 MA cm−² at 77 K and 500-nm thick HfO2-YBCO nanocomposite films with a self-field Jc of 3.1 MA·cm−² at 77 K were achieved. The final HfO2-YBCO nanocomposite films contained dispersed BaHfO3 particles in a YBCO matrix due to the Ba2+ reactivity with the HfO2 nanocrystals. These nanocomposite films presented a more gradual decrease of Jc with the increased magnetic field. These nanocomposite films also showed higher pinning force densities than the pristine films. This pinning enhancement was related to the favorable size and distribution of the BaHfO3 particles in the YBCO matrix.

scholarly journals The Influence of Parameters of Ink-Jet Printing on Photoluminescence Properties of Nanophotonic Labels Based on Ag Nanoparticles for Smart Packaging

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Olha Hrytsenko ◽  
Dmytro Hrytsenko ◽  
Vitaliy Shvalagin ◽  
Galyna Grodziuk ◽  
Nataliia Andriushyna
Keyword(s):  
Luminescence Intensity ◽  
Ag Nanoparticles ◽  
Visible Spectrum ◽  
Smart Packaging ◽  
Ink Jet Printing ◽  
Wide Range ◽  
Ink Jet ◽  
Jet Printing ◽  
Optical Brightness ◽  
High Degree

Ag nanoparticles are perspective for the use in ink-jet printed smart packaging labels in order to protect a customer from counterfeit or inform them about the safety of consumption of a packaged product via changeable luminescence properties. It is determined that, to obtain printed images with the highest luminescence intensity, using the most technologically permissible concentration of fluorescent component in the ink composition and applying inks to papers with the lowest absorbance are recommended. The highest contrast of a tone fluorescent image can be obtained on papers with high degree of sizing. It is found that the use of papers with low optical brightness agent (OBA) content with a wide range of luminescence intensity allows obtaining the same visual legibility of a printed nanophotonic label. The increase in the relative area of raster elements of an image leads to nonlinear increase in luminescence intensity of printed images in long-wave area of visible spectrum, affecting the luminescence color of a printed label. For wide industrial production of printed nanophotonic labels for smart packaging, the created principles of reproduction of nanophotonic images applied onto paper materials by ink-jet printing technique using printing inks containing Ag nanoparticles should be taken into account.

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.

Particle Size and Chroma Control of CoAl2O4 Pigment

2015 ◽  
Vol 655 ◽  
pp. 220-223 ◽  
Author(s):  
Qi Bing Chang ◽  
Xia Wang ◽  
Yong Qing Wang ◽  
Jian Er Zhou ◽  
Xiao Zhen Zhang
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Calcination Temperature ◽  
Ceramic Pigment ◽  
Blue Pigment ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing ◽  
Sacrificial Agent

To meet the requirement of ceramic pigment for ink jet printing, CoAl2O4 pigment was prepared by nitrate-glycine method. The effect of nitrate/glycine ratio, calcination temperature and organic sacrificial agent on the particle size and chroma of the blue pigment were considered. The results show that the particle size of the pigment increases with the increase of glycine in the ratio and the decrease of the calcination temperature. However, the increase of the calcination temperature results in the broadening of the particle size distribution of the pigment. The addition of the organic sacrificial agent contributes to decrease the particle size of the pigment, which is about 2.0 μm. The chroma of the pigment is L*=47.62、a*=9.49、b*=-51.41. The blue pigment can be used in ink jet printing.

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.

Research on the Color Stability of Edible Ink-Jet Ink

2011 ◽  
Vol 380 ◽  
pp. 85-88 ◽  
Author(s):  
Jing Mei Sun ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Ph Value ◽  
Color Stability ◽  
Strong Light ◽  
Food Preservative ◽  
Ink Jet Printing ◽  
Printing Quality ◽  
Ink Jet ◽  
Long Time ◽  
Jet Printing ◽  
The Stability

Edible ink-jet ink is environmental friendly and all of its materials reach the food sanitation standards, so it can be directly printed on the surface of food, medicine and packaging in the way of non-contact ink-jet printing. Due to the acid and alkaline of food surface are different, and the food may experience low or high temperatures and long time exposure in the preserved process, so the stability of the ink is of vital important. Edible ink-jet ink has been prepared through choosing reasonable materials. And then, the performances of the ink such as viscosity, surface tension and pH value have been tested. Finally, the best formula of ink has been determined by evaluating the influence of the ink performances to the ink-jet printing quality. We prepared ink sample based on the best formula and stored it in normal temperature environment which is closed to outside, and evaluated the stability of the ink performance through regularly checking its performance; we evaluated the stability of the ink color under different PH value through adding a little acid-base regulator in it; we also evaluated the stability of the ink color to temperature and light through putting the coating sample in the environment with alternate high and low temperature and in the environment with strong light. The result shows that the stability of the ink is fine, and it can be preserved a month at least without any food preservative. The pH value, temperature and light have no influence to the ink color. So it has a favorable color performance and can be printed on the surface of food.

Research on the Influencing Factors to Printing Quality of Edible Ink-Jet Printing Ink

2012 ◽  
Vol 262 ◽  
pp. 282-286
Author(s):  
Jing Mei Sun ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Surface Tension ◽  
Influencing Factors ◽  
Tail Length ◽  
Ink Jet Printing ◽  
Printing Quality ◽  
Ink Jet ◽  
Result Show ◽  
Jet Printing ◽  
Printing Ink

In the process of the ink drops forming and spreading out, the viscosity and surface tension of the ink play an important role, and then the drops’ injection and printing quality will be influenced by this process. Besides, drops control technology is the key of ink-jet printing technology, and the drops’ injection state will also influence the printing quality. In order to research the influencing factors to printing quality, many samples with different performances are prepared and their drop states include speed, tail length and volume are measured with drop observatory. And then, the specimen pages include lines of different width are printed, order to assessment the printing quality comprehensively, their line width, raggedness, blurriness, density and contrast are measured. The result show that the inks with different performance show different speed, tail length and volume, and their corresponding printing qualities are different too, and there exists linear relationship between printing quality and the drops’ viscosity, surface tension and speed.

Deposition of Molten Eutectic Solder using Jet Printing Techniques

1995 ◽  
Vol 390 ◽  
Author(s):  
Michael D. Snyder ◽  
Ronald Lasky
Keyword(s):  
Surface Tension ◽  
Circuit Boards ◽  
Eutectic Solder ◽  
On Demand ◽  
Drop On Demand ◽  
Single Feature ◽  
Ink Jet ◽  
Jet Printing ◽  
Printing Techniques ◽  
Large Spherical

ABSTRACTThis paper discusses the use of Ink Jet printing techniques to dispense small (50 to 75 micrometer diameter) particles of molten eutectic solder individually at programmable dispense rates from drop on demand to several thousand per second. Alternative jet dispensing techniques are discussed. The technology could allow the selective application of programmable amounts of solder on precision circuit boards and wafer substrates, while avoiding the high cost and flexibility limits associated with hard tooling. Large solder features can be constructed by dispensing individual droplets and relying on surface tension to draw them together to form a large single feature. Alternatively, columnar features can be created by successively dispensing solder droplets at the same site, allowing time between successive droplets to avoid forming a single large spherical feature.Several potential application areas in industry are discussed along with some of the issues associated with the projected performance of the method in the accuracy and speed domains.

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