Coating method and apparatus

Abstract

It is possible to give ultrathin and uniform coating on a flexible web in scraping-off type coating. The distribution of pressure in a web width direction is adjusted by a pressure distribution adjusting device when an excess of coating liquid excessively applied is scraped off by a doctor blade by giving relative pressure to a coating surface of a web and the doctor blade after applying the coating liquid that is more excessive than the desired quantity of the coating liquid on the web by a precoating apparatus while making the web continuously travel.

1 - 15 . (Canceled).  
     
     
         16 . A coating apparatus which applies a coating liquid on a continuously traveling web with a precoating apparatus excessively than desired quantity of the coating liquid, and scrapes off an excess of the coating liquid with a doctor blade with relatively pressing the doctor blade on a coated side surface of the web, wherein: 
 thickness of the doctor blade in a traveling direction of the web is 1 mm to 30 mm.    
     
     
         17 . The coating apparatus according to  claim 16 , wherein a shape of an apical surface of the doctor blade is one of shapes of combining a plurality of planes, combining a plurality of curved surfaces, and combining a plane with a curved surface.  
     
     
         18 . (Canceled).