COATER WITH VALVE

WIPO Patent Application WO/2004/030933

A1

A coater with a valve capable of preventing coating liquid from entering into a front shaft and a coating tip part even if stored for a long period with the coating tip part facing downward and reducing, in use, the possibility of entry of the coating liquid into the front shaft and the coating tip to reduce the precipitated amount of insoluble substances so as to minimize the occurrence of such problems that the delivery of the coating liquid is lowered or disabled, wherein the coating liquid formed of at least pigment, solvent, and surface active agent is stored therein, the front shaft having the coating tip with a valve mechanism formed therein is fixed to the tip opening part of a shaft tube formed in a coating liquid storage chamber, the coating liquid storage chamber is allowed to communicate with a space inside the front shaft, a through-hole is formed between the coating liquid storage chamber and the inside of the front shaft, a part of the through-hole is formed in a small hole part preventing the coating fluid from being passed therethrough by itself, the viscosity of the coating liquid is 40 to 250 mPa·s, and the sectional area of the small hole part is 0.13 to 3.80 mm². The coater with the valve can be so formed that a projected part for preventing an agitating body from being collided with the small hole part is provided near the coating liquid storage chamber side of the small hole part.

WADA NAOKI (JP)

PCT/JP2003/012212

April 15, 2004

September 25, 2003

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PENTEL KK (JP)
WADA NAOKI (JP)

B43L19/00; (IPC1-7): B43L19/00

JP2002166697A	2002-06-11
JP2002105359A	2002-04-10
JP2000071677A	2000-03-07
JPH10130548A	1998-05-19

Shimizu, Chiharu (Nakagin-Shiroyama Bldg. 16-13, Ginza 8-chom, Chuo-ku Tokyo, JP)

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