Hydrodynamic analyses of blade coaters

✍ Scribed by S.S. Hwang

• Book ID: 103007564
• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 763 KB
• Volume: 34
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(79)87003-7

✦ Synopsis

Simple and complete analyses of Newtonian hydrodynmlcs m a blade coatmg system are presented tn this paper The coatmg behavior of the llqmd after It has been pumped to the blade lip IS studied A moving web which IS to be coated through a constant gap 1s parttally wrapped over a coatmg roller under tension In the simple analysts, the coated hqmd film thickness is a function of coatmg gap, ltqutd surface tension, vrscostty and density, and web speed In the complete analysts, the lilm thtckness IS a function of 15 vmabies (10 geometric, 3 ltqutd and 2 operattona!) Three posstble separatton condmons at the extt are exammed The optumzatron of the coater for mtrumtztng ltqutd film thtckness to coating gap ratto LS carrted out for all 15 variables Available expertmental data are compared wtth the analyses INTRODWXION