Patent ID: 6024832
Filing Date: 2000-02-15
Classification: D21F

Abstract:
A method for producing extensible paper, comprising the steps of:feeding a mix of vegetable fibers to a kneader member,mixing said mix with water in said kneader,beating said mix containing water by rubbing the vegetable fibers in a multistep unit to obtain a pulp having a degree of beating of at least 30.degree. SR,transferring said beaten pulp into a flow chest,feeding said beaten pulp from said flow chest onto a paper web formation cloth with reduction of the water percentage by gravity and vacuum and forming a paper web,pressing said paper web with further reduction of the water content of said paper web,initial drying of said paper web to a constant moisture content of between 15% and 65%,compacting said paper web between at least a pair of rollers, one of said rollers being a hard material and having circumferential surface ribs and driven at first speed, and the other is of soft material with a smooth surface and driven at second speed,said second speed being less than said first speed,final drying of said paper web to a moisture content of between 4% and 15%, andglazing said paper web.