2005 Volume 44 Issue 1 Pages 22-27
Authors analyzed the flocculation process of the dispersed colorant particles in the stilled liquid toner (the internal flow is very slow) within the capillary that is formed between a photoconductor and a noncontact squeegee roller. The phenomena were simulated in the fluidic field where the advective diffusion dominates, under the boundary condition of the meniscus (air-liquid interface) from where the dispersion liquid evaporates. The result shows that the flocculation arises at the edges of meniscus about 16 hours later from the initial state, on the case of an ordinary dispersion liquid and a usual environmental condition. And it also shows that the flocculation is accelerated so sharply with increasing the initial concentration or rising temperature. These analyzing method and derived characteristics will be useful to designing the machine to apply the dispersing liquid with capillary.
