Abstract: A method and an arrangement for controlling evaporation and moisture in a multinip calender (10) when a continuous fibrous web (W) is calendered in calendering nips (1,_2,—3,—4,—5) placed one after the other before the fibrous web is wound on a reel-up/winder (9). With a view to making the net evaporation from and the final moisture content of the web (W) constant when the running situations in the calender (10) change, the web is passed in the calender from the outlet of at least one nip into an air-float chamber (20) of the turning airborne type.

Abstract: The invention realtes to a method for controlling the operation of a paper, board or tissue production line (11, 12, 13, 14, 17, 18). A magneto-rheological or an electrolrheological fluid, whose flow characteristics are changed in a controlled way, is used in the method. The fluid is used as a lubricant between surfaces in a device consisting of a fixed surface and a surface that is moved over it as a heating medium, as the dampening or the power transmission agent of the movement of paper and/or board equipment (17, 18), or as a hydraulic fluid of the emergency opening cylinders of a set of calender rolls (1) of a paper and/or board machine.

Abstract: In the method for leading a web between calendar roll nips (N), a web (W) is guided between the calender roll nips (N) in a loop which runs apart from the calender rolls, inside which loop an air pocket (3) is formed. The mass and/or beat flow in the air pocket (3) is prevented in the cross direction of the web by means of obstacles (5) placed in connection with the pocket.

Abstract: A method and an arrangement for controlling evaporation and moisture in a multinip calender (10) when a continuous fibrous web (W) is calendered in calendering nips (1, 2, 3, 4, 5) placed one after the other before the fibrous web is wound on a reel-up/winder (9). It is characteristic of the invention that. with a view to making the net evaporation from and the final moisture content of the web (W) constant when the running situations in the calender (10) change, the web is passed in the calender from the outlet of at least one nip into an air-float chamber (20) of the turning airborne type.

Abstract: The invention relates to a method and arrangement for processing a wide paper or board web in connection with such a manufacturing method, in which a wide base web (14) is manufactured and the base web is processed in at least one processing stage before the separation of the finished product by cutting it transversely from the web on the production line. According to the invention, the base web (14) is divided at least once to form two part-webs (17, 18) before the separation of the finished product by cutting it transversely from the web and before the final processing stage preceding separation. At least one part-web (17, 18) formed in this manner is guided to a finishing stage before the separation of the finished product by cutting it transversely from the web on the production line.