| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating utensil capable of finely controlling the discharge quantity of a coating agent by uniformalizing the exerted pressure deformation of a flexible vessel main body and controlling step by step the exerted pressure deformation quantity of the vessel main body. SOLUTION: In the coating utensil provided with a coating tip capable of discharging and applying the coating agent on the front side of the opening part of the vessel main body provided with a coating agent housing section inside, the vessel main body has a vertically pleated bellow part formed on the side surface and the top part and/or the bottom part of the vertical pleat of the bellow part are formed to have the radially same angle in the cross-sectional direction of the vessel main body or the top part and/or the bottom part of the vertical pleat of the bellow part are existed on the same circle in the cross-sectional direction of the vessel main body.
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