Metso Paper Inc.

Mesto Paper Oy

Pasi Rajala

Vilho Nissinen

Pentti Virtanen

Timo Nyberg

Lars Gr&ouml;nroos

Veli K&auml;sm&auml;

Hannu Niemel&auml;

Kari Juppi

Pertti Heikkila

Jukka Linnonmaa

Richard Solin

Olli Huhtala

Veli Käsmä

Lars Grönroos

Hannu Niemelä

Jukka T M&auml;kinen

Jouni Raki

Jari-Matti Karjanmaa

Pertti HeikkilÄ

A paper, board or non-woven product containing a fiber layer containing cellulosic fibers, plant fibers or other material suitable for making a paper, board or non-woven product. One surface of the fiber layer is treated with pigment particles. The web is treated with microscopic particles whose average size is so small as to permit the particles to adhere to each other by van der Waals forces.

Paper having a cellulosic fiber layer treated with elementary particles

Apparatus for forming a paper or board web made from fibers in which the web is treated with calcium hydroxide and then with carbon dioxide gas so as to form calcium carbonate.

Apparatus for making a web of paper or board containing calcium carbonate

A method and apparatus for determining the profile of a coating layer of a paper or board web ( ). The method comprises application of a coating slip to at least one surface of the web ( ) at the coating head ( ) of a coating machine, the measurement of the transverse temperature profile of the web ( ) surface in at least a measurement point ( ) fitted after the coating head ( ), and the determination of the profile of the web's ( ) coating layer on the basis of the temperature profile measured in at least the measuring point ( ) fitted after the coating head ( ), whereupon a change in the temperature of the web's ( ) coating layer or in the difference of the temperature between the coating layer and the base web ( ) is at least almost proportional to the change in the coat weight.

Method and apparatus for determining the profile of a coating layer

Method and assembly for forming a paper or board web and a product made using the method. According to the method, the web ( ) is made from fibers and then the web ( ) is treated with pigment particles. The web is treated with microscopic pigment particles whose average size is so small as to permit the particles to adhere to each other by van der Waals forces. The particles are transferred to the web and adhered thereto advantageously using an ion-blast technique.

Method for making paper, assembly for implementing the method and paper product produced by the method

A method and device for drying a coated web. The coated web is first conveyed through a web heating unit (,), in which the temperature of the coated web is raised, typically to drying temperature, by directing jets of heating air at the coated web, the humidity a,of the said heating air jets being higher than the humidity a,of the drying air jets. After this the coated web is conveyed through at least one air dryer (,), in which drying air jets are directed at the coated web for drying the coated web.

Method and device for drying a coated web

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Turku, Finland

Pasi Rajala