| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coating method capable of suppressing the inclusion of air between a backup roller and the non-coating surface of a film, and suppressing a coating irregularities in a film width direction especially. Ž<P>SOLUTION: In the method of applying a coating liquid onto a web 12 wound around the outer peripheral surface of the backup roller 14 to travel by a die 16 closely arranged facing the outer peripheral surface of the backup roller 14, when a clearance between the peripheral surface of the backup roller 14 and the discharge port of the coating liquid of the die 16 is defined as C (mm) and an entrained air thickness formed between the peripheral surface of the backup roller 14 and the non-coating surface of the web 12 during applying is defined as h0 (mm), an air inclusion space formed between the peripheral surface of the backup roller 14 and the non-coating surface of the web 12 is pressure-reduced immediately before a contact start position Q where the web 12 starts to contact the backup roller 14, so as to satisfy h0/C<0.04. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
