| 摘要 |
PURPOSE:To prevent the build-up and stringing of a liquid adhesive agent at a nozzle tip by injecting a small amt. of a solvent onto the outside circumference of the nozzle slightly above the tip thereof just prior to the interruption of the discharge of the liquid adhesive agent. CONSTITUTION:A small amt. of the solvent is injected 20a onto the outside circumferential side face of the nozzle 11 and slightly above the tip 11T thereof just prior to the interruption of the discharge of the liquid adhesive agent from the nozzle 11 in a process for coating the liquid adhesive agent to the circumferential edge groove of a can cap in a can making operation. Then the injected solvent 20a flows down along the outside circumferential side face of the nozzle 11 and arrives at the tip of the nozzle 11, thereby wetting the residual deposit 18a of the liquid adhesive agent. The liquid adhesive agent is diluted by the solvent and the viscosity thereof decreased. The build-up and stringing at the nozzle tip are thus prevented and the production efficiency is improved.
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