Security fibers, security from counterfeiting paper containing security fibers, AND METHOD OF MANUFACTURING

摘要

1. Protective fiber, characterized in that the protective fiber (1) is cut (4) or a part of the cut (4) made by cutting a strip-fibers (2) along its cross section (3), wherein the cross section (3 ) is a transverse surface (3) or oblique section (3), said strip fiber (2) comprises a specific structure in the direction of its length, providing protection characteristics forging said slice (4) or of the cut (4), said slice (4) or part cFe for (4) comprising said characteristics of protection against counterfeiting, the said transversal surface (3) refers to the cross section perpendicular to the longitudinal axis of the strip-fibers (2), said oblique section (3) refers to the cross section that passes obliquely through the longitudinal strip fiber axis (2), said cut portion (4) relates to the remaining part after removing the supporting part (X) of the cut (4) .2. Protective fiber according to claim 1, characterized in that the maximum length of the surface (5) of said cutoff section (4) is from 0.5 mm to 15 mm.; and / or the height of said cut (4) or said cut-off portion (4) along the direction of the longitudinal axis of the strip-fibers (2) does not exceed 300 mkm.3. Protective fiber according to claim. 1, characterized in that the ratio of the maximum length of the surface (5) of the section of said cut (4) to the height of said cut (4) along the direction of the longitudinal axis of the strip-fibers (2) is greater than 5, or the ratio of the maximum length of the surface (5 ) of said cutoff section (4) to the height of said cut-off portion (4) along the direction of the longitudinal axis polosoobraznog