Specs
Corrugated Path specs
Setup notes and briefing numbers for Corrugated Path.
Board grade and flute checks
This Corrugated Path specs page outlines the technical checks for corrugated printing requirements. It helps buyers compare board-related needs with the press, plates and ink system already in use.
Start with the corrugated board specification, including flute profile, caliper range and liner surface. Kraft outers, recycled liners and heavier burst grades can change impression settings, ink hold-out and plate choice across the sheet. For South African converters, storage humidity between the coast and inland often shows up first in warp, crush resistance and print consistency.
Record the machine settings before the first production sheets are approved. Include anilox volume, plate tape thickness, print sequence and any vacuum or feed adjustments used for board travel. Those figures matter when the same carton is repeated on a different shift or moved between plants.
Press data needed for cartons
A useful spec sheet names the board width, repeat length, print areas and minimum text size expected on the case. It should also note whether the job runs post-print on corrugated board or from pre-print liner material. That difference affects dot gain, edge definition and where solids are safest on the layout.
Cross-check Corrugated Path specs against the press drive side, drying capacity and the ink set assigned to the job. Before sending details through the contact form, list the press model, board type, flute and any problem areas such as washboarding, crush or dirty print. List the print unit order when checking sheet path.
- Flute profile and board caliper
- Anilox, tape and impression noted
- Print defects listed by station
Checks for South African plants
Sites in Johannesburg may fight dust and drier board, while Durban and Cape Town often deal with higher ambient moisture and slower drying. Those conditions influence feeder settings, static control and how quickly sheets can be stacked without marking. Export transit and warehouse storage also matter when cartons must hold shape after printing and conversion.
Older corrugated lines can have wear on feed rolls, transfer sections and registration controls that newer installs manage more tightly. Because of that, specs should state actual running limits, not catalogue tolerances. Include the checks used for slotter alignment, print-to-crease position and any board damage seen after the last run.
Operated by Astros Marketing (Pty) Ltd from 2 Makro Place, Sunnyrock 1401.
What to include in the brief
Send the carton style, board make-up, artwork scale and the fault you need checked. Add photos of the printed sheet, side view of the board and any crushing or scuffing near the lead edge.
Use the same job name found on the work ticket, plate file and ink reference so records match later. If the buyer needs technical support for approval, include target colours, barcode position and the press settings used on the accepted sample.
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