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FLEXO Magazine : July 2012
• Screening • Press • DGCs and/or ICC profles • Marks and bars • Step and repeat, nesting and staggers • Plate type and specifcations • Any special requirements Prefight is then undertaken to ensure that all of the afore- mentioned specifcations are adhered to; graphic elements are present; the fnished art fle meets the FIRST require- ments, and adjust if necessary. These are among the areas that are checked in the pre- fight process as is detailed in FIRST 4.0 Section 12: • Text and graphic element compliance • Fonts • Bar codes • Resolution of CT images • Number of inks • Die lines • Even if these have been checked in previous design meetings, we will still confrm before image assembly begins. IMAGE ASSEMBLY FIRST 4.0 Section 12 is devoted to standards relative to the assembly of the job. These industry standards are es- sential to ensure the accurate reproduction of the job once it gets to press. Trapping standards are addressed in Section 12.1 and need to be adjusted according to the printing conditions and design. While modern software allows for auto-trapping, even the most intuitive applications require inspection and human override of some decisions. Line art overprints and knockouts are also covered in Sec- tion 12.2. Keep in mind that these decisions may also have an effect on color and the way it is managed. While we are ap- proaching prepress as a linear process, downstream effects need to be considered at every step. Building gradient elements is covered in Section 12.3. This is a critical step. Determining these elements requires an understanding of what the plate can hold as well as what the printer can print. This all must be done while taking into account things like banding or tone jumps that can result in an offensive result rather than the smooth vignette the customer wants. A gradient blend requires even more care and is also covered in 12.3. Bar codes are often purchased from a dedicated third party to avoid liability issues. In cases where the prepress provider will create these bar codes standards are available in Section 12.4. These standards must be followed with great care, as bar code errors will result in potentially catastrophic claims. www.flexography.org JULY 2012 FLEXO 47