12.5 Perforations It is recommended that the Mailing Items have perforations or tear-off strips that meet the specifications detailed below in order to ensure they can be processed efficiently and without any damage being caused. You have the option of using either ‘roulette’ or ‘zip Strip’ perforations, or designing a ‘pressure seal’ envelope which effectively has double roulette perforations on the reverse.
– in portrait orientation where the Indicium is adjacent to just the ‘short’ edge perforation the Indicium is recommended to be inset on 1 side by 12 ± 1mm. This limits the area available for your Indicium to a maximum of 75mm by 29mm; adjacent to both ‘long’ edge and ‘short’ edge perforations the Indicium is recommended to be inset and be 12 ± 1mm on 2 sides. This limits the area available for your Indicium to a maximum of 64mm by 29mm; • no other colour is visible through the perforations in the Tag and Route Clear Zones; • the perforated edges are securely sealed all round from the perforation to the letter edges; • the glue does not run out onto the outside of or produce protruding mounds on the Mailing Item; • the glue is fully cured before you handover your mailing to us; and • the tensile strength of the glue is recommended to be ≥ 0.4N and fibre tear must be exhibited on separation. – in portrait orientation where the Indicium is
12.5.1 Roulette Perforations It is recommended that:
• the perforations be die cut into the Mailing Item, the cut being the hole, and the bridge being the paper that is left intact and subsequently torn when the Mailing Item is opened;
Figure 7 Perforations
Figure 8 Perforation sizes
• the paper weight for the Mailing Items be ≥ 100gsm; • the perforations be located to both ‘short’ sides of the Mailing Item, and one of the long sides of the Mailing Item, i.e. only 3 sides should be perforated; • the perforations are inset from the edge of the Mailing Item by 12 ± 1mm; • the cut of the short side perforations are set at 1.3 – 2mm and with a bridge of 0.8mm as illustrated in Figure 9. Each cut should be of uniform size and each bridge should be of uniform size; • the cut of the long side perforation is set at 0.5 – 1.4mm and with a bridge of 0.4mm as illustrated in figure 9. Each cut should be of uniform size and each bridge should be of uniform size; • the cuts are rectangular in shape and have a width of 0.1mm; • the short side perforations extend from each edge of the envelope; • the long side perforation do not extend beyond the short side perforations; • the Indicium is not printed over the perforations. This effectively reduces the area available for your Indicium as follows: – in landscape orientation where the Indicium is adjacent to both ‘long’ edge and ‘short’ edge perforations the Indicium should be inset and be 12 ± 1mm on 2 sides. This limits the area available for your Indicium to a maximum of 64mm by 29mm; – in landscape orientation where the Indicium is adjacent to just the ‘short’ edge perforation the Indicium is recommended to be inset on 1 side by 12 ± 1mm. This limits the area available for your Indicium to a maximum of 64mm by 40mm;
12.5.2 Pressure Seal Envelopes A pressure seal envelope is a single sheet of paper which has been folded either two or three times to make a DL or C5 size Mailing Item. The short sides need to be sealed and are opened by means of a standard perforation. One long side has to be a fold, the other will be sealed and have effectively a ‘double’ perforation to allow the item to be fully opened. • the short sides have perforations through all layers of the Letter (there will be 3 layers of paper for DL or 2 layers of paper for C5 size Mailing Items); and • the long side has a roulette perforation that does not go through to the front of the Mailing Item. The Mailing Item is opened by removing the short edge perforated strips first and then tearing back the tear off strip on the reverse. It is recommended that:
100
Made with FlippingBook - Online catalogs