FIELD: production of counterfeit-protected valuable papers, in particular, banknotes and documents.
SUBSTANCE: method involves bending end of protective tape having length exceeding that of guiding tube by predetermined value through 180 deg; introducing formed loop into inlet opening of guiding tube channel and fixing tape loop branch opposite to tape end with the result that, without changing the initial orientation, pneumatically movable tape "unrolls" protective tape within guiding tube channel to lead out tape end beyond tube outlet opening, and protective tape, without changing its initial orientation, is fixed on rotating cylindrical grid of papermaking machine and embedded into fibrous structure of paper-pulp in the process of paper formation.
EFFECT: increased efficiency by preventing protective tape from twisting during charging and, accordingly, reduced paper production wastes.
1 dwg
