| 摘要 |
An on-machine procedure in connection with surface sizing of a paper web and serving the conduction of the web surface-sized on both sides and thereby wetted, through the surface sizing steps to the after-drying section (61, 61', 62', 61a, 62a, 61b, 62b) of the paper machine. In the procedure, the web (Win) coming from the pre-drying section of the paper machine is surface-sized on both sides in one or several size press nips (N1a; N1b; N1, N2). Thereafter, the web (W) is conducted either directly or by mediation of a special contact-free turning, supporting (20) and/or spreading means to a stabilizer means (40, 41; 40a, 41a, 41b, 40', 41'), by the action of which the web is supported without contact, and its running is stabilized, whereafter the web is conducted directly or over a contact-free turning means (20a) and/or a special guiding and spreading roll (42) to the after-drying group of the paper machine. The contact-free stabilizer means (40, 41) and other potential means for conducting the web (W) have been so disposed that the free draws of the web (W) will not be too long in view of free fluttering, and so that the web (W) may spread out in its transversal direction. Moreover is disclosed an apparatus for carrying out the procedure and a newsprint paper manufactured applying the procedure. |
