Process for the Manufacture of Bobbins and Booklets of Sheets of Roll-Your-Own Cigarette Paper

Abstract

The present invention relates to a process for the manufacture of bobbins, of sheets and of a booklet of sheets of roll-your-own cigarette paper and to a process for the manufacture of a booklet of sheets of roll-your-own cigarette paper.

1 . Process for the manufacture of bobbins of roll-your-own cigarette paper comprising the following steps:
 a) applying n moisture-activatable adhesive strips to a web of roll-your-own cigarette paper in order to obtain an adhesive web of paper, each of the n moisture-activatable adhesive strips extending in the machine direction, and   b) cutting the adhesive web of paper in the machine direction along the n-1 moisture-activatable adhesive strips in order to obtain n bobbins of roll-your-own cigarette paper, each bobbin of roll-your-own cigarette paper comprising a moisture-activatable adhesive strip along one of these long edges, n being an integer greater than or equal to 2.   
     
     
         2 . Process according to  claim 1 , in which the moisture-activatable adhesive is chosen from sugar solutions, polysaccharides, starch and gums and their mixtures. 
     
     
         3 . Process according to  claim 1  or  claim 2 , in which step a) is carried out with a moisture-activatable adhesive solution and by techniques such as etching, flexography, heliography, flexogravure, photogravure, spraying, wetting and immersion, in particular flexography, heliography, flexogravure and photogravure. 
     
     
         4 . Process according to any one of  claims 1  to  3 , in which step a) is carried out by flexography. 
     
     
         5 . Process according to any one of  claims 1  to  4 , in which the moisture-activatable adhesive strip exhibits a grammage of less than 8 g/m 2 . 
     
     
         6 . Process according to any one of  claims 1  to  5 , in which the moisture-activatable adhesive strip exhibits a continuous form or a non-continuous form. 
     
     
         7 . Process according to  claim 6 , in which the continuous form is chosen from a straight line, a zigzag pattern, a crenellated pattern or a wave pattern. 
     
     
         8 . Process according to  claim 6 , in which the non-continuous form is chosen from a non-continuous line of polygons, a non-continuous line of geometric shapes, of logos and mixtures thereof. 
     
     
         9 . Process for the manufacture of a sheet of roll-your-own cigarette paper comprising a step c) of cutting a bobbin of roll-your-own cigarette paper manufactured by the process as defined in any one of  claims 1  to  8  in order to manufacture a sheet of roll-your-own cigarette paper. 
     
     
         10 . Process for the manufacture of a booklet of sheets of roll-your-own cigarette paper comprising a step d1) of formation of a stack of sheets of roll-your-own cigarette paper which are manufactured by the process as defined in  claim 9 . 
     
     
         11 . Process for the manufacture of a booklet of sheets of roll-your-own cigarette paper comprising a step d2) of formation of a stack of bobbins of roll-your-own cigarette paper which are manufactured by the process as defined in any one of  claims 1  to  8 , followed by a step e) of cutting the stack of bobbins in order to form a stack of sheets. 
     
     
         12 . Process according to  claim 10  or  claim 11 , in which the stack of sheets formed in step d1) or in step e) of cutting the stack of bobbins undergoes an interlocking step in order to form a stack of interlocked sheets. 
     
     
         13 . Process according to  claim 11 , in which the stack of bobbins which is formed in step d2) undergoes an interlocking step before the step of cutting the stack of bobbins in order to form a stack of interlocked sheets.