Bar coating apparatus and bar coating method
AssigneeFuji Photo Film Co., Ltd.
InventorsKazuki Ichikawa, Go Nishino, Nobuyoshi Kaneko
Life of this patent
Estimating the term…
Abstract
A bar coating apparatus includes a coating bar for contacting an object to be coated, which object is conveyed in a constant direction, so as to apply a coating solution to and remove excess coating solution from the object to be coated, a weir member for forming a bead of the coating solution between the object to be coated and the coating bar, the weir member being disposed upstream of the coating bar in a direction in which the object to be coated is conveyed, a pressing member for pressing the object to be coated from a side thereof opposite from the coating bar, the pressing member being disposed near the coating bar; and a moving device for moving the pressing member in a thickness direction of the object to be coated.
Claims19
A bar coating method of bringing a coating bar into contact with an object to be coated, which object is conveyed in a constant direction, comprising the steps of:
- a. supplying the object to be coated;
- b. pressing, with a pressing member disposed near the coating bar, the object to be coated from a side thereof opposite from the coating bar, wherein a distance between a center of the coating bar and a pressing position of the pressing member is within a range of 15 to 60 mm;
- c. moving, in correspondence to a coating state, the pressing member in a thickness direction of the object to be coated;
- and
- d. applying a coating solution to and removing excess coating solution from the object to be coated.
A bar coating method of bringing a coating bar into contact with an object to be coated, which object is conveyed in a constant direction, comprising the steps of:
- a. supplying the object to be coated;
- b. forming a bead of the coating solution between the object to be coated and the coating bar with a weir member disposed upstream of the coating bar in a direction in which the object to be coated is conveyed;
- and
- c. applying a coating solution to and removing excess coating solution from the object to be coated,
- wherein a clearance between the weir member and the object to be coated is maintained at a predetermined value of no more than 5 mm.
A bar coating method of bringing a coating bar into contact with an object to be coated, which object is conveyed in a constant direction, comprising the steps of:
- a. supplying the object to be coated;
- b. rotating the coating bar at a peripheral speed that differs from a peripheral speed corresponding to the speed at which the object to be coated is conveyed;
- c. forming a bead of a coating solution between the object to be coated and the coating bar with a weir member disposed upstream of the coating bar in a direction in which the object to be coated is conveyed;
- and
- d. applying a coating solution to and removing excess coating solution from the object to be coated,
- wherein a clearance between the weir member and the object to be coated is maintained at a predetermined value of no more than 5 mm.
A bar coating apparatus comprising:
- a coating bar for contacting an object to be coated, which object is conveyed in a constant direction, so as to apply a coating solution to and remove excess coating solution from the object to be coated;
- a weir member for forming a bead of the coating solution between the object to be coated and the coating bar, the weir member being disposed upstream of the coating bar in a direction in which the object to be coated is conveyed;
- a pressing member for pressing the object to be coated from a side thereof opposite from the coating bar, the pressing member being disposed near the coating bar;
- and
- a moving device for moving the pressing member in a thickness direction of the object to be coated,
- wherein a distance between a center of the coating bar and a pressing position of the pressing member on the object to be coated is within a range of 15 to 60 mm.
A bar coating apparatus comprising:
- a coating bar for contacting an object to be coated, which object is conveyed in a constant direction, so as to apply a coating solution to and remove excess coating solution from the object to be coated;
- a weir member for forming a bead of the coating solution between the object to be coated and the coating bar, the weir member being disposed upstream of the coating bar in a direction in which the object to be coated is conveyed;
- and
- a pressing member for pressing the object to be coated from a side thereof opposite from the coating bar, the member being disposed near the coating bar,
- wherein a distance between a center of the coating bar and a pressing position of the pressing member on the object to be coated is within a range of 15 to 60 mm.
A bar coating apparatus comprising:
- a coating bar for contacting an object to be coated, which object is conveyed in a constant direction, so as to apply a coating solution to and remove excess coating solution from the object to be coated;
- a weir member for forming a bead of the coating solution between the object to be coated and the coating bar, the weir member being disposed upstream of the coating bar in a direction in which the object to be coated is conveyed;
- and
- a clearance-maintaining mechanism for maintaining clearance between the weir member and the object to be coated at a predetermined value of no more than 5 mm.
A bar coating apparatus comprising:
- a coating bar for contacting an object to be coated, which object is conveyed in a constant direction, so as to apply a coating solution to and remove excess coating solution from the object to be coated;
- a weir member for forming a bead of the coating solution between the object to be coated and the coating bar, the weir member being disposed upstream of the coating bar in a direction in which the object to be coated is conveyed;
- a rotational drive for rotating the coating bar at a peripheral speed that differs from a peripheral speed corresponding to the speed at which the object to be coated is conveyed;
- and
- a clearance-maintaining mechanism for maintaining clearance between the weir member and the object to be coated at a predetermined value of no more than 5 mm.
Dependencies are inferred from the claim text.