Metso Paper Inc.

Valmet Corporation

Markku Kyyts&ouml;nen

Antti Heikkinen

Harri Kuosa

Pekka Koivukunnas

Jorma Kinnunen

Kari Juppi

Pekka Linnonmaa

Juha Lipponen

Vesa Ahvenniemi

Mikko Tani

Eero Suomi

Esa Aalto

Janne Ver&auml;j&auml;nkorva

Kari Sipi

Pauli Kyt&ouml;nen

Pekka Moisio

Mauri Laurikainen

Jouni Tulokas

Juhani Partanen

Mika Tammenoja

Ville Vuorij&auml;rvi

A paper or board web (W) is calendered in at least one calendering nip (N N ), and the web (W) is moisturized before calendering. The web (W) is moisturized by means of liquid moisturization ( ) very close before at least one calendering nip (N N ). A calender for calendering a paper or board web has at least one liquid moisturizing calendering nip (N N ) and at least one device ( ) for moisturizing the web (W) is placed very close before at least one calendering nip (N N ).

Method and device for moisturization of a paper or board web in calendering

A threading device and a method for threading a tail of a web, wherein, for guiding the path of a tail separated from a full-width web in a paper machine or a paper finishing device, the threading device comprises a suction channel, placed at least partly in a paper machine portion and provided with a reduced pressure for gripping the tail, and transfer means for transferring the suction channel in the portion of the paper machine and simultaneously for releasing the tail to the portion. In the method for threading of the tail, before threading the full-width web through a portion in a paper machine, the tail is separated from the web, the tail is cut, and the tail is conveyed in the portion of the paper machine, after which the full-width web following the tail in a continuous manner is conveyed to the portion, by providing a reduced pressure in a suction channel, by transferring an inlet opening of the suction channel close to the tail separated from the web, by transferring the tail into the suction channel by means of the reduced pressure prevailing therein, and by releasing the tail to the portion of the paper machine by transferring the suction channel and particularly the inlet opening in the direction of the portion of the paper machine.

Threading device and method for threading the tail of the web

The invention relates to an apparatus for continuously reeling a paper web, especially a high-gloss magazine paper web, around a reel spool. The apparatus comprises means for guiding the paper web towards the reel spool, means for winding the paper web around the reel spool to form a paper roll, and means for positioning the paper web on the roll in different axial positions with respect to said reel spool. The means for positioning the paper web on the roll in different axial positions comprises oscillating means provided for an oscillating movement of the reel spool in cross direction of the paper web.

Apparatus and method for continuously reeling a web material

A method and apparatus for producing calendered paper by an on-line manufacturing system comprising at least a paper machine and a multi-nip calender. The method comprises following steps: removing water from a formed paper web by pressing, drying the pressed paper web by at least one dryer, calendering the dried web by the multi-nip calender, measuring a cross-machine moisture profile or a variable relative thereto, and altering the moisture of the web so that the moisture profile of the web in the cross-direction is even when the web enters the first nip of the calender.

Method for producing calendered paper

Growing community of inventors

Numminen, Finland

Markku Kyytsönen

Growing community of inventors

Numminen, Finland

Markku Kyyts&ouml;nen

Markku Kyytsönen