Savcor Process Oy

Jyri Jarvi

Isto Heiskanen

Seppo Karine

Kirsi Partti-Pellinen

Pekka Kylliainen

Martti Pulliainen

Mikko Vepsalainen

Jukka Rautiainen

Matti Hakkinen

Ari Johansson

The invention relates to a method in the wet end of a web forming process. In the method, at least one electrode pair () is placed in the wet end. The electrode pair () is supplied with a current/voltage from a power source (), so that an electric field is set up between the electrode pair (), causing the material particles in the pulp suspension in the wet end to be electrically charged in a desired manner and to move in a desired manner in the pulp suspension in the wet end. The current/voltage of the power source () is controlled by means of a measuring and control unit () so as to cause the material particles in the pulp suspension to be electrically charged and to move in a desired manner, thus allowing the retention, formation and orientation of the material particles in the pulp suspension to be substantially improved.

Method for use in the wet end of a paper machine, cardboard machine or an equivalent web forming machine

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Espoo, Finland

Jyri Jarvi