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Paper and Other Web Coating Process

Overview Diagrams

This document provides diagrams of common web coating processes.

The document is intended to be used for informational purposes only.

Gravure Coating Unit Gravure Adhesive Lamination Line

Three-roll Reverse-roll Coater

Knife Coater

Dip Roll Coater Extrusion Process

Calendering Process

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Credits: This document was made possible through the efforts of the

POWC Implementation Tool Development Partnership effort, an effort to

bring together the regulated and regulatory community. It was through a

group effort that this document was developed. The logo of the partner

who was the lead for this tool is listed first below. To see a

description of our partners or to get more information about the

partnership effort, see http://wwww.epa.gov/ttn/atw/powc/powcpg.html

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Gravure Coating Unit

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Gravure Adhesive Lamination

Line

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Gravure Adhesive Lamination Line

Oven

Primary

Web Secondary Web

Doctor blade

Adhesive

Winder

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Three-roll Reverse-roll Coater

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Knife Coater

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Dip Roll Coater

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Extrusion Process

Extrusion Example 1

General process overview

Extrusion Example 2

Detailed diagram of the extruder

Extrusion Example 3

Diagram showing substrate details

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Extrusion Example 1

Primary

Web

Oven

ExtrudersWinder

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Extrusion Example 2

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Calendering Process

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