Abstract
Slot coating has been widely spread in photo resist coating on glass for flat display monitor. High qualityof coating is required as high quality of image in display is needed. Coating quality in the slot coating is divided intonozzle direction quality and machine direction quality. Nozzle direction quality is related to flow uniformity inside thedie whereas machine direction quality is related to die lip design and operational conditions. In this study coating uniformityin the machine direction of slot coating has been investigated through computer simulation. Die lip angle and die lip lengthwere considered as outside die geometry and coating speed was considered as operational condition. Coating behavior hasbeen analyzed and coating quality has been evaluated through computer simulation. Coating thickness decreased and coatinguniformity increased as coating speed increased. However, the stability of meniscus formation was reduced and subsequentlycoating stability was reduced as coating speed increased. Coating thickness deviation decreased as die lip angle increasedin down stream die. Coating thickness decreased and time to reaching steady state increased as increased die lip lengthin down stream die.
| Translated title of the contribution | Coater Die Design and Coating Quality Evaluation in the Machine Direction of Slot Coating Through Computer Simulation |
|---|---|
| Original language | Korean |
| Pages (from-to) | 282-287 |
| Number of pages | 6 |
| Journal | 엘라스토머 및 콤포지트 |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 2013 |