Applicator and application method

Patent metadata

Field	Value
Publication number	US-2016175879-A1
Application number	US-201615060001-A
Country	US
Kind code	A1
Filing date	Mar 3, 2016
Priority date	Sep 10, 2013
Publication date	Jun 23, 2016
Grant date	—

Abstract

There is provided an applicator that applies a coating liquid onto the upper surface of a web, and an application method which are capable of sufficiently enhancing the evenness of a coating surface. The applicator includes: a bar which rotates while coming into contact with the upper surface of the continuously travelling web via the coating liquid; and a barrier plate which is provided on an upstream side of the bar in a travelling direction of the web and allows the coating liquid to flow in a direction toward the web between the barrier plate and the bar, in which, when a distance between the barrier plate and an end edge portion of the bar, which is closest to the barrier plate, is referred to as A and a distance between the barrier plate and the web is referred to as B, A is 0.5 mm to 5 mm, B is 0.5 mm to 5 mm, and is satisfied.

First claim

What is claimed is:

1 . An applicator comprising:
a bar which rotates while coming into contact with an upper surface of a continuously travelling web via a coating liquid; and a barrier plate which is provided on an upstream side of the bar in a travelling direction of the web and allows the coating liquid to flow in a direction toward the web between the barrier plate and the bar, wherein, when a distance between the barrier plate and an end edge portion of the bar, which is closest to the barrier plate, is referred to as A and a distance between the barrier plate and the web is referred to as B, A is 0.5 mm to 5 mm, B is 0.5 mm to 5 mm, and BSA is satisfied.

2 . The applicator according to claim 1 ,
wherein a thickness of an end portion of the barrier plate on the web side is 0.5 mm or greater.

3 . The applicator according to claim 1 ,
wherein the barrier plate includes a protrusion on the web side.

4 . The applicator according to claim 1 ,
wherein the barrier plate is of a movable type.

5 . An application method comprising:
supplying a coating liquid between a bar, which rotates while coming into contact with an upper surface of a continuously travelling web via the coating liquid, and a barrier plate, which is provided on an upstream side of the bar in a travelling direction of the web; and applying the coating liquid onto the web, wherein, when a distance between the barrier plate and an end edge portion of the bar, which is closest to the barrier plate, is referred to as A and a distance between the barrier plate and the web is referred to as B, A is 0.5 mm to 5 mm, B is 0.5 mm to 5 mm, and B≦A is satisfied.

6 . The application method according to claim 5 ,
wherein a liquid mass of the coating liquid is formed on the upper surface of the web, and the liquid mass does not spread toward an upstream side of a side portion of the barrier plate which comes into contact with the coating liquid.

7 . The application method according to claim 5 ,
wherein a thickness of an end portion of the barrier plate on the web side is 0.5 mm or greater.

8 . The application method according to claim 5 ,
wherein the barrier plate includes a protrusion on the web side.

9 . The application method according to claim 5 ,
wherein a viscosity of the coating liquid is 0.5 mPa·s to 100 mPa·s.

10 . The application method according to claim 5 ,
wherein a travelling speed of the web is 10 m/min to 200 m/min.

11 . The application method according to claim 5 ,
wherein application is performed to allow a coating amount of the coating liquid applied onto the web to be 2 ml/m 2 to 50 ml/m 2 .

Assignees

• Fujifilm Corp

Inventors

• Kato Akifumi
• Sato Takanori
• Hashigaya Manabu
• Sakamoto Takahiro

Classifications

• B05C11/025

  with an essentially cylindrical body, e.g. roll or rod · CPC title

• D21H25/12

  with an essentially cylindrical body, e.g. roll or rod · CPC title

• B05C3/18 Primary

  only one side of the work coming into contact with the liquid or other fluent material (B05C3/02 takes precedence) · CPC title

• B05C17/02 Primary

  Rollers {(for applying toilet or cosmetic substances A45D34/04); Hand tools comprising coating rollers or coating endless belts} · CPC title