Method for producing fiber webs and production line for producing fiber webs

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9322135
APP PUB NO 20150136349A1
SERIAL NO

14548717

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Abstract

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A method for producing a fiber web (W) in which method the fiber web (W) is calendered in at least one nip (NA) of a calender (20A). The fiber web (W) is cooled at least partially by moisturizing evaporating cooling by a moisturizing evaporating cooling unit (10) before the fiber web is calendered and moisture is absorbed during 10-500 ms. A production line for producing fiber webs (W) has a calender (20A) with a calendering nip (NA). The production line for fiber webs, in particular board webs, has a fiber web machine (50), in particular a board machine, with a head box, a wire section, a press section and a drying section, and at least one moisturizing evaporating cooling module (10), and a hard nip calender (20A) with a thermo roll, which has a surface temperature at least 120° C., and a reel-up (40).

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Patent Owner(s)

Patent OwnerAddress
VALMET TECHNOLOGIES INC02150 ESPOO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ilomäki, Jari Helsinki, FI 3 20
Luomi, Seppo Järvenpää, FI 12 80
Pietikäinen, Reijo Järvenpää, FI 5 33
Viljanmaa, Mika Helsinki, FI 29 102

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