Patent ID: 7112292
Filing Date: 2006-09-26
Classification: A61J,A61K,Y10T

Abstract:
1. A method of manufacturing a seamless capsule formed by encapsulating a filler material with a capsule shell material, said method comprising: a step of positioning a concentric multiple nozzle having a center nozzle and an annular nozzle concentrically surrounding the center nozzle, such that a tip of the concentric multiple nozzle is disposed above a liquid surface of a curing liquid with a space and faces down; a step of supplying a liquid filler material to the center nozzle of the concentric multiple nozzle, and supplying a liquid capsule shell material to the annular nozzle of the concentric multiple nozzle; a step of immersing a concentric columnar composite flow, which includes the flow of the liquid filler material discharged from the center nozzle and the flow of the liquid capsule shell material discharged from the annular nozzle and flowing around said flow of the filler material, in the curing liquid without separating into droplets before arriving at the liquid surface of the curing liquid; a step of cutting the composite flow immersed in the curing liquid from the end of the immersed composite flow, thereby forming a droplet; and a step of curing the capsule shell material of the droplet by coming into contact with the curing liquid.