Method for dividing a paper web
OwnerLars Ekströminventor
Life of this patent
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Abstract
A method of dividing a formed paper web into at least two partial-width webs during production of creped paper in a paper machine having a cylinder with an adhesive coating to which the web adheres. The web is divided in conjunction with the cylinder by one partial-width web being detached by scraping from the outer surface at a first web-detaching point while the other partial-width web, still adhered to the outer surface, accompanies this surface to a second web-detaching point situated downstream, to be detached by scraping from the outer surface, at least one partial-width web being creped off.
Claims11
A method of dividing a running fibrous web having a width into at least two partial-width portions along a dividing line therebetween extending longitudinally along a running direction of the web, comprising:
- wrapping the web circumferentially about an outer surface of a rotating cylinder and holding the web fixed against the outer surface such that the web is transported in the running direction by rotation of the cylinder;
- removing one partial-width portion of the web from the rotating cylinder at a first web-detaching point;
- removing another partial-width portion of the web from the rotating cylinder at a second web-detaching point;
- the first and second web-detaching points being circumferentially spaced apart such that the two partial-width portions of the web are removed from the cylinder at different times so as to cause the web to be divided along the dividing line separating the two portions.
Dependencies are inferred from the claim text.