A study of the off-contact screen printing process. I. Model of the printing process and some results derived from experiments

Owczarek, J. A.; Howland, F.L.

doi:10.1109/33.56169

Cited by 44 publications

(17 citation statements)

References 2 publications

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“…In the light of these objections, Owczarek and Howland [10,11] instead adopted a modelling approach based upon lubrication theory, more recently extended by Anderson et al [12] to consider the printing of power-law fluids. None of these models, however, has taken into proper consideration the real geometry of the screen-printing process.…”

Section: Description Of the Industrial Processmentioning

confidence: 99%

A model for the screen-printing of Newtonian fluids

et al. 2005

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Abstract. A preliminary investigation into aspects of the off-contact screen-printing process is presented. A mathematical model for the printing of a thin film of Newtonian fluid is proposed, in which the screen is modelled as a permeable membrane, and the entire region above and below the screen is flooded. By drawing upon widely used industrial circuit printing practices, the distinguished limit of greatest interest to this industry is identified. Numerical and asymptotic solutions of this distinguished limit are presented that reproduce many of the features observed in industrial screen-printing.

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Section: Description Of the Industrial Processmentioning

confidence: 99%

A model for the screen-printing of Newtonian fluids

et al. 2005

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“…In his theory, the ink roll in front of the squeegee is treated as a pump generating high hydrostatic pressure close to the squeegee edge to inject ink into the screen meshes. Owczarek and Howland [7,8] described a physical model of the screen printing process. They found that the angles of squeegees during printing decrease from the unformed angle of 45 degrees by about 20 degrees for hard squeegees (90 shore A) and by 30 -40 degrees for soft squeegees (60 shore A).…”

Section: Review Of Screen Printing Processmentioning

confidence: 99%

Screen Printing Process Design of Experiments for Fine Line Printing of Thick Film Ceramic Substrates

Pan

Tonkay

Quintero

1999

Journal of Electronics Manufacturing

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“…Theoretical studies of the process have made little advancement in the development of reliable screen printing process models. Early models showed some predicted trends which were in agreement with experimental observation but even the most recent developments require significant oversimplification (e.g., material viscoelasticity is ignored) which limit practical use [6,7]. Establishing process/material characteristics and their impact on printed performance therefore is reliant on experimental studies.…”

Section: Introductionmentioning

confidence: 63%

Deposition of High Conductivity Low Silver Content Materials by Screen Printing

et al. 2015

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Abstract:A comprehensive experimental investigation has been carried out into the role of film thickness variation and silver material formulation on printing capability in the screen printing process. A full factorial experiment was carried out where two formulations of silver materials were printed through a range of screens to a polyester substrate under a set of standard conditions. The materials represented a novel low silver content (45%-49%) polymer material and traditional high silver content (65%-69%) paste. The resultant prints were characterised topologically and electrically. The study shows that more cost effective use of the silver in the ink was obtained with the low silver polymer materials, but that the electrical performance was more strongly affected by the mesh being used (and hence film thickness). Thus, while optimum silver use could be obtained using materials with a lower silver content, this came with the consequence of reduced process robustness.

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A study of the off-contact screen printing process. I. Model of the printing process and some results derived from experiments

Cited by 44 publications

References 2 publications

A model for the screen-printing of Newtonian fluids

A model for the screen-printing of Newtonian fluids

Screen Printing Process Design of Experiments for Fine Line Printing of Thick Film Ceramic Substrates

Deposition of High Conductivity Low Silver Content Materials by Screen Printing

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