METHOD AND APPARATUS FOR PRODUCING A FIBRE WEB

According to an example aspect of the present invention, there is provided an apparatus and a method comprising a forming section (1) for feeding an aqueous furnish of fibres on a moving surface (2, 3) to form a shape of a product and a pressing and heating section (6) for removing water from the sh...

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Bibliographic Details
Main Authors RÖKMAN, Kay, LEHMONEN, Jani, PIHKO, Riku
Format Patent
LanguageEnglish
French
German
Published 31.07.2024
Subjects
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
METHODS OF PRODUCING PAPER THEREON
NON-WOVEN FABRICS
PAPER-MAKING
PAPER-MAKING MACHINES
PRODUCTION OF CELLULOSE
TEXTILES
TRIMMINGS
WADDING
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Summary:According to an example aspect of the present invention, there is provided an apparatus and a method comprising a forming section (1) for feeding an aqueous furnish of fibres on a moving surface (2, 3) to form a shape of a product and a pressing and heating section (6) for removing water from the shaped product received from the moving surface (2). The pressing and heating section (6) comprises a felt (7) and metal belt (9) that are set to run against each other for receiving the furnish from the moving surface (2) and heating elements (11, 13, 14) for heating the web in at least two pulses including at least one first pulse wherein the product is pressed for at least 10- 200 ms on a first pressure and at least one second heating and smoothing pulse wherein the product is heated at least for 10 - 200 ms on a pressure that is higher than the first pressure, and at least one of the surfaces pressing the product being the smooth metal belt (9).
Bibliography:Application Number: EP20170787465