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US 6,475,342 B1Granted
Method of and arrangement for treating a fiber web
AssigneeMetso Paper, Inc.
InventorElias Retulainen
Life of this patent
Estimating the term…
Abstract
The invention relates to a method and arrangement for moistening a substantially dry fiber web and subjecting the moistened web to heat and compression.
Claims17
A method of treating a fiber web, the method comprising:
- providing a substantially dry fiber web;
- moistening at least one surface of the substantially dry fiber web;
- leading the surface-moistened substantially dry fiber web to an apparatus comprising first and second endless air-impermeable bands arranged to turn around respective first and second turning rolls, wherein the turning rolls arrange the bands to run part way in parallel to each other for receiving the surface-moistened substantially dry fiber web subjected to a compression pressure between the parallel bands;
- and
- heating at least one of the first and second bands.
2 more elements
An apparatus for treating a fiber web, the apparatus comprising:
- at least one moistening apparatus for moistening at least one surface of a substantially dry fiber web;
- an apparatus comprising first and second endless air-impermeable bands, first turning rolls, the first band being arranged to turn around the first turning rolls, and second turning rolls, the second band being arranged to turn around the second turning rolls, wherein the turning rolls arrange the bands to run part way in parallel for receiving the surface-moistened substantially dry fiber web with the moistened surface subjected to a compression pressure between the parallel bands;
- and
- means for heating at least one of the bands.
1 more element
A method of treating a fiber web, the method comprising:
- providing a substantially dry fiber web;
- moistening at least one surface of the substantially dry fiber web;
- leading the surface-moistened substantially dry fiber web to an apparatus comprising first and second endless air-impermeable bands arranged to turn around respective first and second turning rolls, wherein the turning rolls arrange the bands to run part way in parallel to each other for receiving the surface-moistened substantially dry fiber web subjected to a compression pressure of between about 1 and about 10 bar between the parallel bands;
- and
- heating at least one of the first and second bands.
2 more elements
An apparatus for treating a fiber web, the apparatus comprising:
- at least one moistening apparatus for moistening at least one surface of a substantially dry fiber web;
- an apparatus comprising first and second endless air-impermeable bands, first turning rolls, the first band being arranged to turn around the first turning rolls, and second turning rolls, the second band being arranged to turn around the second turning rolls, wherein the turning rolls arrange the bands to run part way in parallel for receiving the surface-moistened substantially dry fiber web with the moistened surface subjected to a compression pressure of between about 1 and about 10 bar between the parallel bands;
- and
- means for heating at least one of the bands.
1 more element
Dependencies are inferred from the claim text.