Screen printing variables and their effect on print paste consumption

Abstract

This investigation evaluates the effects on print paste consumption of altering screen printing variables in rotary‐ and flat‐screen printing. An analysis of fabric consumption factors for a 100% coverage screen on a number of different substrates is reported. Average factors are calculated for each substrate and the uptake variations brought about by altering squeegee size, magnet pressure, mesh size, machine speed and print fall‐on recorded. Paste viscosity remained constant throughout the investigation. The fabric factors, together with screen open area percentages available from the laser engraver, are used to predict the amounts of paste required to print a designated length of fabric. A laboratory Zimmer magnetic rod printer is used under controlled conditions to draw comparisons with the bulk printing results. The data shows that the major influencing variables are squeegee size, machine speed and print fall‐on effects.

Printable Transparent Conductive Films for Flexible Electronics

“…Due to the difficulty in producing highly loaded and viscous dispersions of pristine graphene resulting from its inherent aggregation tendency, high‐resolution screen printing of graphene for printed electronics is still a great challenge. Conventional screen printing techniques have limited printing resolution of 50–150 µm, corresponding to a screen mask resolution of 40–120 µm, which is restricted by the low lithography resolution of the emulsion layer and mesh dimensions . To deal with this, Francis and co‐workers .…”

Field Emission Cathodes to Form an Electron Beam Prepared from Carbon Nanotube Suspensions

“…Screen printing is a well-established and significantly old technique for reproducibly writing patterns on flat surfaces [112]. The print industry has been using it to transfer black-and-white and color patterns on solid and non-solid materials [113], without any limits on the patterned area. The technique uses a wire-mesh frame that is placed over a fixed substrate.…”

“…Micromachines 2020, 11, 260 9 of 31 technique uses a wire-mesh frame that is placed over a fixed substrate. The wire-mesh design and material type [113] are two important factors in considering the affinity of the wire mesh, together with the choice of the substrate and suspension (paste, ink, or emulsion) [108,113]. The important parameter in screen printing is the viscosity of the suspension, which depends on the solvent: if it is too viscous, it will not transfer through the wire-mesh opening; if it is insufficient, it will not hold the pattern [113,114].…”

Effect of mesh count on dot design and quality of screen printing in knit fabric

“…Screen printing is a printing technique that uses woven mesh to support an ink-blocking stencil. 6,7 The higher the mesh count and more smooth printing material can induce the better dot, tone reproduction and higher printing precision. 8 The research work was carried on printing under the different mesh count screen for dot design with different ink to relate the effect of mesh count on cotton knit printed fabric and assessment of printing quality.…”