<p>A coating apparatus is provided in which entrained air flow of an applicator roll and a web (1) is removed and occurrences of misting and coating irregularity are suppressed to thereby realize a uniform coating liquid film and a uniform coating state. In a coating apparatus comprising an applicator roll (2a) arranged to abut on another roll (2b) so as to form a nip portion (4) therebetween and to transfer a coating liquid to be coated on a surface of a web (1) passing through the nip portion (4), the coating apparatus further comprises a coater head provided on an upstream side of the nip portion (4) in a rotational direction of the applicator roll so as to supply the coating liquid onto a surface of the applicator roll and a boundary air remover (8) provided between the nip portion (4) and the coater head on the upstream side of the nip portion so as to prevent air from entering the nip portion (4). The boundary air remover (8) comprises a box part having an ejector (8a) ejecting an ejector gas on the surface of the applicator roll (2a) toward a direction reverse to the rotational direction of the applicator roll (2a) and also comprises a blade (9). The box part is constructed so as to cover a portion of the applicator roll (2a).</p>
