Abstract:
The present invention relates of a method of using a slitter winder (20) according to which the web (w) is slit in the longitudinal direction into at least two partial webs (w1) which are rewound to separate roll (26) and according to which, when the rolls have reached a desired diameter, the web is cut and the cut end of the web attached to the surface of the completed roll by means of adhesive by bringing adhesive with an adhesive application apparatus (29) to the surface of the web on the side which remains between the web and the roll when the adhesive arrives to the roll. It is characteristic of the method that adhesive is brought to the surface of the web while the web is moving and that an adhesive stripe (28, 28') essentially transverse to the running direction of the web is formed of the adhesive onto the surface of the web.
Abstract:
The invention relates to a method in connection with a change process of a reel-up of a fibre-web machine, which method is applied when performing a change of reeling of a web (W) from a web roll (11) being completed to a new web roll for reeling the next roll around a reeling shaft (12). In the method, for fastening the surface layer/surface layers of the web roll (11) to the web roll (11) being completed, at least one two-sided tape (20) is adhered from its one side to the web (W) being passed to the web roll (11) being completed or to the surface of the web roll (11) and said tape (20) is adhered from its other side to the surface of the web roll (11) being completed/to the surface of the web (W) being reeled onto the web roll (11) being completed due to the effect of a reeling nip between the reel drum (13) and the web roll (11) or a pressing-roll nip between the web roll (11) and a pressing roll (14) or due to the effect of the tightness (T) of the web.
Abstract:
For the securing of the web end of a number of web rolls, which lie adjacent to one another or side by side, tapes which shall be applied onto the rolls are transferred from a tape dispenser (13) to a tape conveyor (14, 22) such that the tapes will contact the conveyor through their non-adhering surface at a distance from one another corresponding to the desired distances between the tapes on the roll/rolls of web material. The conveyor with the tapes thereafter is moved towards the web roll/rolls, each tape being directed towards that place on the roll/rolls where the tape shall be applied with an adhering side brought into contact with the respective roll and secured to the roll at the said place. The conveyor then is removed, the tapes remaining secured to the roll/rolls therein that the adhering side of the tapes has a greater adhering power to the roll/rolls than the non-adhering side has to the conveyor.