METHOD FOR APPLYING MAGNETIC LIQUID TO WEB

摘要

A liquid application method by which a high-quality magnetic recording medium of good electromagnetic converting property can be stably manufactured with high yield and high productivity over a wide ranges of manufacturing factors while preventing chromatic nonuniformity and longitudinal streaking, even if the application head is replaced. A quantity of the liquid larger than the applied quantity of the liquid to the carrier is supplied by liquid feed means into the liquid reservoir of the extrusion head which communicates with the slot, a portion of the liquid in the reservoir is forcibly drained therefrom by liquid drain means though a liquid drain port provided at or near a position farthest from the position of a liquid feed port for the reservoir along the width of the carrier, a bypass connected to changeover valves immediately upstream and downstream of the head and a return passage branched from the bypass are provided, and flow rate control valves are provided in the bypass and the return passage.