The invention relates to a method for marking a wrapping paper for smoking articles, comprising the following steps: (A) providing a wrapping paper for smoking articles, and (B) producing register marks on the wrapping paper by treating the surface of the wrapping paper with laser radiation having an energy density y in J-m-2, to which the following applies: y=k.Math.x, whereby x is the enthalpy of combustion per volume of the wrapping paper in J.Math.m.sup.−2.Math.μm.sup.−1, and k is at least −8 μm and at most −1 μm.

The invention relates to a method for marking a wrapping paper for smoking articles, comprising the following steps: (A) providing a wrapping paper for smoking articles, the wrapping paper comprising pulp fibers, and (B) producing markings on the wrapping paper by means of at least one of the following steps: (B.1) removing material from the wrapping paper, (B.2) mechanically changing the wrapping paper, (B.3) treating the surface of the wrapping paper with laser radiation having an energy density y in J-m.sup.2, to which the following applies: y=kx. x is the enthalpy of combustion per volume of the wrapping paper in J-m.sup.2 m-1, and k is at least 8 m, preferably at least 7 m and especially preferably at least 6 m, and at most 1 m, preferably at most 2 m and especially preferably at most 2.5 m. Either repeating structures are produced on the wrapping paper in a step (C) such that each structure is at a fixed distance in the machine direction relative to at least one marking, or in step (A) a wrapping paper is provided which has repeating structures in the machine direction, and the markings are produced on the wrapping paper in step (B) in such a way that each marking is at a fixed distance in the machine direction relative to at least one structure.

A method and apparatus of manufacturing a web which is striped with add-on material, comprising: a first slurry supply which forms a sheet of base web and moves the sheet along a first path; a second slurry supply; and a moving orifice applicator operative so as to repetitively discharge the second slurry upon the moving sheet of base web. The moving orifice applicator includes a chamber box arranged to establish a reservoir of the second slurry across the first path, an endless belt having orifice groups, the endless belt received through the chamber box, and a drive arrangement operative upon the endless belt to continuously move the orifices along an endless-path and repetitively through the chamber box.