Patent ID: 9579653
Date: 2017-02-28
CPC Classifications: B01L,B32B,F04B,F16K,Y10T

Claim:
1. A liquid channel device including a base plate in which a liquid channel through which a liquid flows, and one or more liquid chambers for holding the liquid are formed to at least one surface thereof, and a cover plate which is laminated to a channel formation surface of the base plate in which the liquid channel and the liquid chambers are formed; wherein the liquid channel device further includes a closing section for closing a portion of the liquid channel from an open mode; and the closing section includes a sealing material supply chamber which is formed branching from a portion of the liquid channel, and a sealing material having a viscosity of 30 to 500 dPA·s which is filled in the sealing material supply chamber and is extruded out into a part of the liquid channel by external pressing on a floor of the sealing material supply chamber or on the cover plate in an area corresponding to the sealing material supply chamber, thereby closing the liquid channel.