| 摘要 |
A method of and an arrangement for manufacturing various paper grades by the same paper machine, wherein the formed and at least partly dried web is treated in a coating unit (20) by spraying a liquid treating agent onto the surface of the web, whereafter the web is influenced in a calendering unit (40) by means of heat and compression to increase at least the web's smoothness and, when so desired, also its gloss; in which method the paper grade to be produced is selected, the liquid treating agent being selected according to the paper grade, influencing the web and enabling the features of the paper grade that is produced; the said liquid treating agent being selectable from a group of water, water with additives, surface size, pigment-containing coating agent, and the mixtures thereof; the desired solids content of the web is selected before the calendering unit (40); a drying process (30) is selected to obtain the desired solids content, in which drying process (30), drying methods and drying powers deviating from one another can be selected between the coating unit (20) and the calendering unit (40); whereby the drying power can be selected from natural drying caused by a clearance to a drying power provided by means of the combination of several driers (30, 321 , 361); whereby the said desired solids content of the web is from 85 to 92 %, when the liquid treating agent is water and from 90 to 95 %, preferably 92 %, when the liquid treating agent is the pigment-containing coating agent. |
