Slot die with variable manifolds and controlling method thereof

Abstract

Provided is a slot die with variable manifolds and a controlling method thereof. The slot die with the variable manifolds, which applies ink on a substrate to perform a coating process, includes: a first body having a length corresponding to a width of the substrate and having a cavity configured to accommodate the ink supplied from the outside; a second body having a length corresponding to the first body and having an discharge port, from which the ink is discharged, formed in one side thereof when the second body is coupled to the first body; a plurality of variable manifolds disposed in the cavity in a width direction of the substrate and installed so as to reciprocate in the cavity; and a plurality of manifold drivers disposed at one side of the first body and connected to the plurality of variable manifolds to allow the plurality of variable manifolds to reciprocate, respectively, wherein each of the plurality of variable manifolds is independently driven according to a state of the ink coated on the substrate and adjusts a partial discharge amount of the ink discharged from the discharge port by changing a partial volume of the cavity at an arrangement position thereof.