METHOD AND APPARATUS IN MOISTENING OF A WEB

In the method in moistening of a web, water is applied with a wetting device (2) in a predetermined point on the surface of a paper web (W) or the like passing by the point, and the web is thereafter passed t o a calender (C). The liquid is applied at such an early stage that before the surface trea...

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Bibliographische Detailangaben
Hauptverfasser: TANI, MIKKO, HEIKKINEN, ANTTI
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:In the method in moistening of a web, water is applied with a wetting device (2) in a predetermined point on the surface of a paper web (W) or the like passing by the point, and the web is thereafter passed t o a calender (C). The liquid is applied at such an early stage that before the surface treatment, the fibres exposed to wetting in the pape r web (W) or the like have the time to absorb it at least 80 % of the amount of liquid they are capable of absorbing. The distance travelle d by the web between the drying section and the calender is increased with rolls (1) which guide the web (W) along a winding path.