# US 2009/0260979 A1 · Washing apparatus, apparatus for manufacturing plating-filmed web, washing process, and process for manufacturing plating-filmed web

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- Number: US 2009/0260979 A1
- Document ID: US20090260979A1
- Status: Published application
- Kind: A1
- Application number: 11/997,407
- Filed: 2007-03-20
- Published: 2009-10-22
- Earliest claimed: 2006-03-31
- Assignees: FUJIFILM Corporation
- Inventors: Hirokazu Saitou
- Web page: https://patentgrep.com/patent/US20090260979A1

## CPC

- C25D 17/00: Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D 7/0628: {In vertical cells}
- C25D: PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR

## Abstract

The present invention provides a washing apparatus which washes a web while conveying the web. The washing apparatus includes a squirting component which ejects fresh washing liquid at the web and a first washing tank which is disposed at an upstream side of a conveyance direction of the web relative to the squirting component. The first washing tank washes the web that is passing through the first washing tank, and takes in the washing liquid that has been ejected at the web by the squirting component.

## Claims

### Claim at position 1

1-12. (canceled)

### Claim 13

A washing apparatus which washes a web while conveying the web, the washing apparatus comprising:
a squirting component which ejects fresh washing liquid at the web; and
a first washing tank which is disposed at an upstream side of a conveyance direction of the web relative to the squirting component, washes the web that is passing through the first washing tank, and takes in the washing liquid that has been ejected at the web by the squirting component,
a pair of liquid-extracting rollers which nip the web at the web conveyance direction downstream side relative to the squirting component,
wherein a portion of the squirting component ejects teh washing liquid at the liquid-extracting rollers.

### Claim 14 (depends on 13)

The washing apparatus of claim 13, wherein the washing liquid is ejected at the liquid-extracting rollers from below.

### Claim 15 (depends on 13)

The washing apparatus of claim 13 further comprising:
a second washing tank at the web conveyance direction upstream side relative to the first washing tank, the second washing tank neighboring the first washing tank and sandwiching a partition wall with the first washing tank; and
a dividing plate disposed at the second washing tank side relative to the partition wall, an upper end portion of the dividing plate being higher than the partition wall, and the dividing plate structuring a fluid outlet between the dividing plate and a floor face of the second washing tank,
wherein the washing liquid in the first washing tank is allowed to overflow at the partition wall and is guided through the fluid outlet into the second washing tank.

### Claim 16

A production facility for manufacturing a plating-filmed web, the production facility, while conveying a web which includes a conductive surface, causing the conductive surface of the web to contact a cathode roller and forming a plating coat at the conductive surface of the web in an electroplating solution, and the production facility comprising:
a washing apparatus at a downstream side of a conveyance direction of the web relative to the electroplating solution, the washing apparatus washing off plating liquid that has adhered to the web,
wherein the washing apparatus includes:
a squirting component which ejects fresh washing liquid at the web; and
a first washing tank which is disposed at the web conveyance direction upstream side relative to the squirting component, washes the web that is passing through the first washing tank, and takes in the washing liquid that has been ejected at the web by the squirting component,
a pair of liquid-extracting rollers which nip the web at the web conveyance direction downstream side relative to the squirting component,
wherein a portion of the squirting component ejects the washing liquid at the liquid-extracting rollers.

### Claim 17 (depends on 16)

The production facility of claim 16, wherein the washing liquid is ejected at the liquid-extracting rollers from below.

### Claim 18 (depends on 16)

The production facility of claim 16, wherein
the washing apparatus further includes:
a second washing tank at the web conveyance direction upstream side relative to the first washing tank, the second washing tank neighboring the first washing tank and sandwiching a partition wall with the first washing tank; and
a dividing plate disposed at the second washing tank side relative to the partition wall, an upper end portion of the dividing plate being higher than the partition wall, and the dividing plate structuring a fluid outlet between the dividing plate and a floor face of the second washing tank, and
the washing liquid in the first washing tank is allowed to overflow at the partition wall and is guided through the fluid outlet into the second washing tank.

### Claim 19

A washing method for washing a web while conveying the web, the method comprising:
(a) ejecting fresh washing liquid at the web by a squirting component;
(b) prior to (a), passing the web through a first washing tank, which takes in the washing liquid that has been ejected at the web;
(c) nipping the web at the web conveyance direction downstream relative to the squirting component by a pair of liquid-extracting rollers; and
(d) ejecting the washing liquid at the liquid-extracting rollers by a portion of the squirting component.

### Claim 20 (depends on 19)

The washing method of claim 19, wherein
the washing liquid in the first washing tank overflows and is guided into a second washing tank, and
prior to the web being passed through the first washing tank, the web is passed through the second washing tank.

### Claim 21

A method for manufacturing a plating-filmed web, the manufacturing process including, while conveying a web which includes a conductive surface, causing the conductive surface of the web to contact a cathode roller and forming a plating coat at the conductive surface of the web in an electroplating solution, and the manufacturing method comprising
after conveying the web through the electroplating solution, washing off plating liquid that has adhered to the web with a washing method,
wherein the washing method includes:
(a) ejecting fresh washing liquid at the web by a squirting component;
(b) prior to (a), passing the web through a first washing tank, which takes in the washing liquid that has been ejected at the web;
(c) nipping the web at the web conveyance direction downstream side relative to the squirting component by a pair of liquid-extracting rollers; and
(d) ejecting the washing liquid at the liquid-extracting rollers by a portion of the squirting component.

### Claim 22 (depends on 21)

The method of claim 21 wherein, in the washing method,
the washing liquid in the first washing tank overflows and is guided into a second washing tank, and
prior to the web being passed through the first washing tank, the web is passed through the second washing tank.

### Claim 23 (depends on 19)

The washing method of claim 19, wherein peripheral surfaces of the liquid-extracting rollers remain moistened with the washing liquid by ejecting the washing liquid at the liquid-extracting rollers by a portion of the squirting component.

### Claim 24 (depends on 21)

The method of claim 21, wherein peripheral surfaces of the liquid-extracting rollers remain moistened with the washing liquid by ejecting the washing liquid at the liquid-extracting rollers by a portion of the squirting component.

### Claim 25 (depends on 19)

The washing method of claim 19, wherein the washing liquid is ejected at the liquid-extracting rollers from below.

### Claim 26 (depends on 21)

The method of claim 21, wherein the washing liquid is ejected at the liquid-extracting rollers from below.

### Claim 27 (depends on 13)

The washing apparatus of claim 13, wherein the liquid-extracting rollers are formed of polyvinyl alcohol.

### Claim 28 (depends on 16)

The production facility of claim 16, wherein the liquid-extracting rollers are formed of polyvinyl alcohol.

### Claim 29 (depends on 13)

The washing apparatus of claim 13, wherein the liquid-extracting rollers rotate with conveyance of the web.

### Claim 30 (depends on 16)

The production facility of claim 16, wherein the liquid-extracting rollers rotate with conveyance of the web.

### Claim 31 (depends on 13)

The washing apparatus of claim 13, wherein the squirting component includes a plurality of nozzles having diameters of a size such that ejection velocity of the washing liquid increases.

### Claim 32 (depends on 16)

The production facility of claim 16, wherein the squirting component includes a plurality of nozzles having diameters of a size such that ejection velocity of the washing liquid increases.

### Claim 33 (depends on 31)

The washing apparatus of claim 31, wherein the diameters of the nozzles are 0.3 mm.

### Claim 34 (depends on 32)

The production facility of claim 32, wherein the diameters of the nozzles are 0.3 mm.
