Gravure printing cylinder for printing of large-sized tags

A gravure printing cylinder (11) for printing a gravure printed pattern (10) containing large-sized tags onto a surface of a print substrate (12);

• the pattern to be gravure printed is engraved into the surface of the gravure printing cylinder (11) as an engraved pattern (9) comprising two areas,
• an area for gravure printing, AREA-NORM (1), and
• an area for gravure printing of large-sized tags, AREA-TAG (2);
• AREA-NORM (1) is an area which is delimited by its border (1-2);
• AREA-TAG (2) is an area which is delimited by its border;
• AREA-NORM (1) comprises an engraving, ENGRAVING-NORM (1-1);
• AREA-TAG (2) comprises an engraving, ENGRAVING-TAG (2-1);
• ENGRAVING-NORM (1-1) is a pit (1-1-1) and its surrounding wall, the pit (1-1-1) is engraved into the surface of the gravure printing cylinder (11) leaving its surrounding wall unengraved, with the top of the wall being on the same level as the unengraved surface (3) of the gravure printing cylinder (11);
• the length of ENGRAVING-NORM (1-1) is the length in the direction of the largest lateral extension of ENGRAVING-NORM (1-1);
• the width of ENGRAVING-NORM (1-1) is the largest lateral extension of ENGRAVING-NORM (1-1) perpendicular to its length;
• the length of ENGRAVING-NORM (1-1) is equal to or larger than its width;
• ENGRAVING-TAG (2-1) is a large pit (2-1-3) and its surrounding wall, the large pit (2-1-3) is engraved into the surface of the gravure printing cylinder (11) leaving its surrounding wall unengraved, with the top of the wall being on the same level as the unengraved surface (3) of the gravure printing cylinder (11);
• the length of ENGRAVING-TAG (2-1) is the length in the direction of the largest lateral extension of ENGRAVING-TAG (2-1);
• the width of ENGRAVING-TAG (2-1) is the largest lateral extension of ENGRAVING-TAG (2-1) perpendicular to its length;
• the length of ENGRAVING-TAG (2-1) is equal to or larger than its width;
• the length of the large pit (2-1-3) of ENGRAVING-TAG (2-1) is the length in the direction of the largest lateral extension of the large pit (2-1-3) of ENGRAVING-TAG (2-1);
• the width of the large pit (2-1-3) of ENGRAVING-TAG (2-1) is the largest lateral extension of the large pit (2-1-3) of ENGRAVING-TAG (2-1) perpendicular to its length;
• the length of the large pit (2-1-3) of ENGRAVING-TAG (2-1) is equal to or larger than its width;
• any lateral dimension is a dimension in a cylindrical layer coaxial to the unengraved surface (1-2) of the gravure printing cylinder (11);
• characterized in that the width of ENGRAVING-NORM (1-1) is less than 0.4 mm;
• the lower limit of the width of ENGRAVING-TAG (2-1) is 0.4 mm;
• the size of the width of the large pit (2-1-3) of ENGRAVING-TAG (2-1) is at least 50% of the size of the width of ENGRAVING-TAG (2-1);
• at least all the parts of the border of AREA-TAG (2) on the side (2-1-6) of AREA-TAG (2) that is opposite to the printing direction (11-2) abut a part of the border (1-2) of AREA-NORM (1);
• the printing direction (11-2) is the circumferential direction around the axis (11-1) of the gravure printing cylinder (11) in which the gravure printing cylinder (11) revolves when printing.