Progress and Trends in Ink-jet Printing Technology

Le, Ha

doi:10.2352/j.imagingsci.technol.1998.42.1.art00007

Cited by 551 publications

(20 citation statements)

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“…Dye-based inks are not waterproof and are affected by UV, resulting in color changes. In contrast, pigment-based inks are more waterproof and UV-resistant than dye-based inks; furthermore, they cause little degradation over time and color bleeding on the printed surface, enabling high-resolution and durable printing . However, pigment-based inks still have issues in long-term dispersion stability .…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, pigment-based inks are more waterproof and UV-resistant than dye-based inks; 4 furthermore, they cause little degradation over time and color bleeding on the printed surface, enabling high-resolution and durable printing. 5 However, pigment-based inks still have issues in long-term dispersion stability. 6 To achieve inkjet printing of ink, it is necessary to disperse water-insoluble dyes or pigments as fine particles in water and maintain the uniform dispersion for a long period of time.…”

Section: ■ Introductionmentioning

confidence: 99%

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Polymeric Surfactants Bearing Divalent Carboxy Pendants for Stable Color Dispersions with High Redispersibility

Ohtake

Ito

Horiba

et al. 2023

ACS Appl. Polym. Mater.

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Inkjet printing of ink requires dyes or pigments insoluble in water but uniformly dispersing as fine particles for a long period. In addition, redispersibility after solidification by solvent vaporization around the jetting heads is also important for performance. In this study, thus, a series of amphiphilic copolymers were prepared for a dispersant of inkjet using reversible addition fragmentation chain-transfer copolymerization of styrene (St), benzyl acrylate (BnA), and phenoxyethyl acrylate (PEA) as a hydrophobic monomer with acrylic acid (AA) and itaconic acid (IA) as a hydrophilic monomer. To understand the fundamental properties and potentials as a polymer dispersant, the surface parameters and rheology of the copolymers and their color dispersions in aqueous media were investigated. The aqueous solutions were typical Newtonian fluids, whereas the color dispersions were non-Newtonian fluids with shear-thinning properties and yield values ranging from 0.57 to 1.04 Pa. Although the surface parameters, such as surface tension (γ), molecular occupied area (A min ), and zeta potential (ζ), did not show clear correlation with polymer structures, their behaviors as a dispersant were significantly different. The color dispersants containing the copolymer of St or BnA as a hydrophobic monomer and IA and AMPS as hydrophilic monomers exhibited sufficient redispersion both for yellow and cyan inks, even after the aging test at 60 °C for 5 days, whereas other copolymers did not exhibit such superior performances. In addition, the color dispersions of the copolymer of St, IA, and AMPS (St-IA-AMPS) showed lower viscosity and yield value and became closer to Newtonian fluid compared with that of St, AA, and AMPS (St-AA-AMPS). Thus, St-IA-AMPS provided good redispersibility and avoided sedimentation. These results suggest that the most suitable dispersant for inkjet inks among the polymers investigated was the copolymer of St, IA, and AMPS.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Polymeric Surfactants Bearing Divalent Carboxy Pendants for Stable Color Dispersions with High Redispersibility

Ohtake

Ito

Horiba

et al. 2023

ACS Appl. Polym. Mater.

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“…Drop-on-demand (DOD) inkjet and continuous inkjet (CIJ) have been known as two mainstreams of inkjet printing technologies. [1][2][3] Recently, the application of DOD inkjet printing has been diversified to use in various fields including electronics, materials science and engineering, and biology. [3][4][5][6][7][8][9][10] However, the main applications of CIJ printing still are limited to graphics or marking.…”

Section: Introductionmentioning

confidence: 99%

“…In DOD inkjet printing, the printhead generates a single ink droplet per triggering signal by means of a piezo-actuator, thermal bubble, electrostatic force, or acoustic wave. [1,11,12] In contrast, CIJ uses a continuous jet stream, which is broken up into ink droplets using a piezo-vibrator. Discharged (jetted) droplets can have high kinetic energy because discharge speed (speed of jetted droplets in-flight, i.e., the jetting speed) can be as high as 10-30 m s À1 [13,14] and the droplet volume could be in the range of hundreds of pico-liters.…”

Section: Introductionmentioning

confidence: 99%

Improved Continuous Inkjet for Selective Area Coating Using High‐Viscosity Insulating Inks

Phung

Kwon

2022

Adv Eng Mater

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While drop‐on‐demand (DOD) inkjet has been broadening its applications, especially in manufacturing sectors such as printed electronics, continuous inkjet (CIJ) has been limited to use in conventional graphics and marking areas. So far, there have been few attempts to use functional materials in CIJ printing despite the advantages of its high‐speed printing capability and relatively low implementation costs. Herein, the performance of CIJ in terms of printable ink viscosity, print area, and printing speed is significantly improved. For demonstration, selective area printing methods using insulation inks are presented. The selective area coating is very difficult to implement since charged droplets becoming closer together can increase undesirable charge repulsion effects among them. To reduce the charge interaction among the charged droplets and maximize the printing efficiency, a new voltage driving scheme for selective area coating applications is proposed.

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“…[6][7][8][9] There are two main IJP modes of operation: the continuous inkjet printing (CIJ) and the drop-on-demand (DOD) system. [10] Despite CIJ being widely exploited in graphical applications, such as coding and marking, the great advantage of a DOD system over CIJ is the possibility to print smaller features (i.e. %20-50 μm vs %100 μm of CIJ) and that the ink droplet is ejected only when is needed, eliminating most of the complex structural parts present in CIJ.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Drop‐On‐Demand Inkjet Printing of High‐Viscosity Inks

Bernasconi¹,

Brovelli

Viviani³

et al. 2021

Adv Eng Mater

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Drop‐on‐demand inkjet printing of highly viscous fluids represents a highly attractive emerging technology for advanced material deposition. The jetting of viscous inks, such as concentrated polymer solutions and nanoparticle suspensions, is a key enabling technology for many industrial applications, ranging from microelectronics to biomedicine and ceramics manufacturing. Currently available standard inkjet printers typically operate in a relatively narrow viscosity range (up to 16 mPa s), and alternative drop‐on‐demand printing techniques (such as laser‐induced forward transfer) present limited industrial applicability. In this context, the development of a piezoelectric‐driven printhead capable of jetting high‐viscosity fluids is of great interest. Herein, a prototype of such a device is presented and its performance is evaluated using model fluids at increasing viscosities. Specifically, the dependence of emitted droplets’ properties on jetting parameters is evaluated and linked to the physical characteristics of the system. In optimal conditions, piezoelectric jetting of solutions characterized by viscosities in excess of 200 cP is achieved. Finally, as an applicative example, the jetting of functional inks is attempted. A ZnO suspension and a poly(3,4‐ethylenedioxythiophene) (PEDOT) based solution are successfully jetted to demonstrate the applicability of the developed printhead to the deposition of ceramic suspensions and concentrated polymer solutions.

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Progress and Trends in Ink-jet Printing Technology

Cited by 551 publications

References 0 publications

Polymeric Surfactants Bearing Divalent Carboxy Pendants for Stable Color Dispersions with High Redispersibility

Polymeric Surfactants Bearing Divalent Carboxy Pendants for Stable Color Dispersions with High Redispersibility

Improved Continuous Inkjet for Selective Area Coating Using High‐Viscosity Insulating Inks

Piezoelectric Drop‐On‐Demand Inkjet Printing of High‐Viscosity Inks

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