Double-sided coating device

Patent metadata

Field	Value
Publication number	US-9604246-B2
Application number	US-201414892786-A
Country	US
Kind code	B2
Filing date	May 7, 2014
Priority date	May 24, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A double-sided coater 1 includes a first coater 5 a coating a surface not contacting a guide roll 4 b , and a second coater 5 b coating another surface contacting the guide roll 4 b . Each of the first and second coaters 5 a and 5 b includes a gravure kiss coater including a small-diameter gravure roll 10 and a coating liquid supplier 30 . The guide roll 4 b guides a substrate S from a vertical direction to a horizontal direction to allow the first coater 5 a to coat the substrate S from a lateral point while the substrate S travels vertically, and to allow the second coater 5 b to coat the substrate S from a lower point while the substrate S travels horizontally.

First claim

The invention claimed is:

1. A double-sided coater continuously coating two surfaces of a traveling substrate, the coater comprising:
a first guide roll supporting and guiding the substrate to allow the substrate to travel vertically upward;
a second guide roll located downstream of the first guide roll on a same surface of the substrate as the first guide roll, wound with the substrate, and guiding a traveling direction of the substrate, with the substrate having tension;
a first coater located next to and upstream of the second guide roll, and coating one of the surfaces not contacting the second guide roll;
a second coater located next to and downstream of the second guide roll, and coating the other one of the surfaces contacting the second guide roll; and
a floating drier drying the substrate with the coated surfaces, wherein
each of the first and second coaters is a gravure kiss coater including
a cylindrical small-diameter gravure roll having an outside diameter within a range from 45 mm to 150 mm, and including, on an outer peripheral surface, a coating section contacting the traveling substrate while floating, and
an enclosed coating liquid supplier capable of being placed transversely, the coating liquid supplier extending along the small-diameter gravure roll, and supplying coating liquid to the coating section,

in a transverse position, an uppermost end of at least the coating liquid supplier of the second coater is located under a tangent line tangent to an upper end of the small-diameter gravure roll as seen along a rotational axis of the small-diameter gravure roll, and
both the first and second coaters are next to the second guide roll while being placed transversely, and
the second guide roll guides the substrate from a vertical direction to a horizontal direction to allow the first coater to coat the substrate from a lateral point while the substrates travels vertically, and to allow the second coater to coat the substrate from a lower point while the substrate travels horizontally.

2. The double-sided coater of claim 1 , wherein
the substrate includes a non-coated region at its ends in a width direction, and
the double-sided coater further comprises, between the second coater and the floating drier, an end supporter clamping the non-coated region of the traveling substrate.

Assignees

• Fuji Kikai Kogyo Kk
• Toyota Motor Co Ltd

Inventors

• Miura Hidenobu
• Umehara Masakazu

Classifications

• B05C9/14

  the auxiliary operation involving heating {or cooling} · CPC title

• B05C19/008 Primary

  Accessories or implements for use in connection with applying particulate materials to surfaces; not provided elsewhere in B05C19/00 · CPC title

• B05C1/0826

  the work being a web or sheets (B05C1/0804, B05C1/0808, B05C1/0813, B05C1/0817, B05C1/0821, B05C1/10, B05C1/12 take precedence) · CPC title

• B05C1/0839

  the work being unsupported at the line of contact between the coating roller and the work · CPC title

• B05C9/04 Primary

  for applying liquid or other fluent material to opposite sides of the work · CPC title