| Printing Process |
Select a process that can maintain stable ink transfer over the required production volume, such as offset, flexographic, or digital printing. |
Record press type, plate or anilox specifications, ink system, substrate, and production speed. |
Different processes produce different dot gain, solid ink density, and color consistency characteristics. |
| Paperboard and Corrugated Substrate |
Approve the exact board grade, coating, surface color, basis weight, and flute construction before color approval. |
Check basis weight in g/m², caliper in mm, moisture content, whiteness, and surface absorption. |
Substrate shade and ink absorption directly affect printed color and can vary between board batches. |
| Color Reference Condition |
Use an approved contract proof or reference sample produced for the same printing condition and substrate category. |
Document the reference file, color profile, proof medium, viewing condition, and approval date. |
A digital screen or unrelated sample is not a reliable production color standard. |
| ISO 12647 Process Control |
Align the selected print workflow with the applicable ISO 12647 process-control principles and the agreed print condition. |
Control tone value increase, solid color values, gray balance, overprint behavior, and color bars. |
ISO 12647 is a process-control framework; the applicable part and print condition must be specified for meaningful color evaluation. |
| Color Measurement Instrument |
Use a calibrated spectrophotometer rather than visual inspection alone. |
Measure under the agreed geometry and illuminant, commonly D50 for graphic-arts evaluation; use the same instrument setup throughout the job. |
Instrument readings improve repeatability and help identify drift before large quantities are produced. |
| Color Difference Target |
Set numerical acceptance limits by ink, substrate, print condition, and visual importance instead of applying one universal value. |
A commonly used operational starting point is ΔE00 ≤ 2.0 for critical brand-color areas and ΔE00 ≤ 3.0 for general process-color areas, subject to customer approval. |
ISO 12647 requirements should not be confused with a single universal ΔE tolerance for every packaging application. |
| Solid Ink Density and Tone Value |
Control solid ink coverage and tonal reproduction against the approved print condition. |
Measure process-color solids, gray-balance patches, and tone patches such as 25%, 50%, and 75%; define plant-specific limits during press qualification. |
Excessive or insufficient ink changes contrast, image detail, barcode readability, and color balance. |
| Proof and Press Approval |
Approve a signed drawdown or press sheet before the main run, using the production substrate whenever possible. |
Compare at least three representative sheets: beginning, middle, and end of the press run. |
Color can shift as ink, blanket condition, board temperature, and press settings change. |
| Viewing Environment |
Evaluate samples in a controlled neutral viewing booth or under a documented standard light source. |
Use a neutral gray surround, minimize surrounding color, and allow printed samples to stabilize before evaluation. |
Warm office lighting, sunlight, and colored surroundings can create misleading visual judgments. |
| Ink Drying and Surface Finish |
Allow sufficient drying or curing time before final color measurement and finishing. |
Record drying time, coating or varnish type, lamination status, and whether measurements are taken before or after finishing. |
Coatings and lamination can alter gloss, contrast, and measured color appearance. |
| Barcode and Variable Information |
Reserve adequate contrast and quiet zones for barcodes, symbols, lot codes, and shipping marks. |
Verify barcode grade, edge definition, minimum module size, and readability after coating or finishing. |
Color accuracy alone does not ensure reliable scanning during warehousing and transportation. |
| Structural Shipping Performance |
Select board strength and box construction according to product weight, stacking height, humidity, and distribution route. |
Evaluate edge crush test, box compression, burst or puncture resistance, stacking load, and drop performance where applicable. |
A visually accurate box can still fail if compression, impact, or moisture resistance is inadequate. |
| Moisture and Storage Control |
Store printed sheets and finished boxes in a clean, dry environment away from direct sunlight and uncontrolled humidity. |
Record storage temperature and relative humidity; a commonly used paper-storage reference range is approximately 20–25°C and 45–55% RH when feasible. |
Moisture changes can affect board dimensions, register, curl, stacking strength, and ink appearance. |
| Sampling Plan |
Define sample size and inspection points before production, considering lot size and risk level. |
Inspect first-off samples, periodic press samples, finished cartons, and samples from different pallets or production shifts. |
Distributed sampling detects variation that a single approved carton may not reveal. |
| Quality Records and Traceability |
Require a retained approved sample and a production report for every significant print run. |
Include substrate batch, ink batch, machine, operator, measurement results, inspection time, nonconformities, and corrective actions. |
Traceable records support repeat orders, complaint investigation, and objective supplier performance reviews. |
Cosmetic Packaging
Display Packaging
CBD Packaging
Retail Packaging
Product Packaging
Cigarette Packaging
Candle Packaging
Soap Packaging
Chocolate Packaging
Vape Packaging
Food Packaging
Window Packaging Boxes
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Pizza Packaging
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Garments Packaging
Custom Printed Bags
Christmas Packaging
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Cereal Packaging
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Apparel Packaging
Shipping Packaging
Custom Pre Roll Boxes
Dispenser packaging
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