| 摘要 |
A method of coating a peripheral surface of a sleeve core with a radiation curable coating liquid including the steps of: supporting a sleeve core in a vertical position coaxial with a coating axis; providing an annular coating collar, supplying the coating liquid to the annular coating collar and moving the annular coating collar along the sleeve core in a vertical direction coaxial with the coating axis, thereby coating a layer of the coating liquid onto the peripheral surface of the sleeve core; wherein the coated layer of the coating liquid is cooled by the peripheral surface of the sleeve core to have a viscosity at the temperature of the peripheral surface of the sleeve core and at a shear rate of 10 s−1 which is larger than a minimum viscosityηmin, with:ηmin = d 2 50 wherein d represents the thickness of the coated layer expressed inμm, andηmin is expressed in mPa·s. Also, a coating device for performing the above coating method.
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