Coating apparatus for a traveling web

• US 20020026895A1
• Filed: 11/05/2001
• Published: 03/07/2002
• Est. Priority Date: 09/19/1995
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Kakumoto, Atsushi, Naruse, Yasuhito
• Granted Patent: US 7,267,722 B2
• Time in Patent Office: Days
• US Class Current: 118/209
• CPC Class Codes: B05C 13/00 Means for manipulating or holding work, e.g. for separate articles B05C1/0821 takes precedence
• CPC Class Codes: B05C 5/00 Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work B05C7/00 takes precedence; essentially involving spraying or electrostatic projection B05B
• CPC Class Codes: B05C 5/0254 Coating heads with slot-shaped outlet B05C5/0283 takes precedence
• CPC Class Codes: B05C 9/00 Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
• CPC Class Codes: B05C 9/06 for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work

Abstract

A coating apparatus for a traveling web comprising two coating heads and a traveling path changing roller is disclosed. A bar coater is arranged close to a pass roller. The bar coater is fixed at such a position as to contact the web when the pass roller is moved down. An extrusion coater is arranged below a backup roller in such a manner as to move up and down. If the pass roller moves up and bends up the traveling path of the web, the web separates from the bar coater. Then, if the extrusion coater moves up, the web is coated with the coating solution by the extrusion coater. If the pass roller and the extrusion coater move down, the web is coated with the coating solution by the bar coater.

Claims

1. A coating apparatus for a traveling web comprising:

plural coating heads arranged in a traveling path of said web; and

traveling path changing means arranged close to said plural coating heads;

wherein said traveling path changing means changes said traveling path of said web, so that said web is made close to at least one of said plural coating heads, which is used selectively for coating.

2. The coating apparatus according to claim 1, wherein said plural coating heads are provided in such a manner as to move toward and away from said traveling path of the web, and said coating head selected for coating moves toward said traveling path of the web so as to be arranged close to said web.

3. The coating apparatus according to claim 1, wherein said traveling path changing means is at least one pass roller.

4. The coating apparatus according to claim 1, wherein said plural coating heads consist of a bar coater and an extrusion coater.

5. The coating apparatus according to claim 1, wherein said plural coating heads consist of an extrusion coater and a slide bead coater.

6. The coating apparatus according to claim 1, wherein said plural coating heads consist of an extrusion coater and a roll coater.

7. The coating apparatus according to claim 1, wherein said plural coating heads consist of a first extrusion coater and a second extrusion coater.

8. The coating apparatus according to claim 1, wherein said plural coating heads consist of a first extrusion coater, a second extrusion coater, and a third extrusion coater.