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    • 5. 发明专利
    • DE69417190T2
    • 1999-08-05
    • DE69417190
    • 1994-12-28
    • TDK CORP
    • TSUNODA EIZOSHIMIZU YUTAKAYOSHIIKE NAOMIONOZAWA KATSUMIKATAI KAZUOWATANABE EIICHI
    • B05C5/02B05C9/04B05D1/26B05D3/00G03C1/74G11B5/848
    • In a coating method of extruding a coating liquid through a slit (33) of an extrusion-type coating head (3) to coat a running web (11), at a starting or restarting of the coating, the coating liquid is extruded through the slit (33) of the coating head (3) while the coating head (3) is away from the web (11), and then the coating is started while a slightly large clearance is kept between the coating head (3) and the web at the upstream side of the coating head (3), thereafter changing the coating state or arrangement to a steady coating state. Therefore, occurrence of a thicker portion of the coating film on the web at the start of the coating can be prevented. Further, at the end or interruption of the coating, the coating state or arrangement of the coating head (3) is changed from the steady coating state to a state wherein a slightly large clearance is kept between the coating head (3 ) and the web (11) at the upstream side, and the coating head (3) is moved away from the web (11) to end the coating . Therefore, occurrence of a thicker portion of the coating film on the web (11) at the end of the coating can be prevented. With this arrangement, at the start, restart, end and interruption of the coating, a uniformly coated film can also be formed on one surface (11b) of the web whose other surface(11a) has already been coated with a coating liquid .
    • 8. 发明专利
    • DE69417190D1
    • 1999-04-22
    • DE69417190
    • 1994-12-28
    • TDK CORP
    • TSUNODA EIZOSHIMIZU YUTAKAYOSHIIKE NAOMIONOZAWA KATSUMIKATAI KAZUOWATANABE EIICHI
    • B05C5/02B05C9/04B05D1/26B05D3/00G03C1/74G11B5/848
    • In a coating method of extruding a coating liquid through a slit (33) of an extrusion-type coating head (3) to coat a running web (11), at a starting or restarting of the coating, the coating liquid is extruded through the slit (33) of the coating head (3) while the coating head (3) is away from the web (11), and then the coating is started while a slightly large clearance is kept between the coating head (3) and the web at the upstream side of the coating head (3), thereafter changing the coating state or arrangement to a steady coating state. Therefore, occurrence of a thicker portion of the coating film on the web at the start of the coating can be prevented. Further, at the end or interruption of the coating, the coating state or arrangement of the coating head (3) is changed from the steady coating state to a state wherein a slightly large clearance is kept between the coating head (3 ) and the web (11) at the upstream side, and the coating head (3) is moved away from the web (11) to end the coating . Therefore, occurrence of a thicker portion of the coating film on the web (11) at the end of the coating can be prevented. With this arrangement, at the start, restart, end and interruption of the coating, a uniformly coated film can also be formed on one surface (11b) of the web whose other surface(11a) has already been coated with a coating liquid .