Printing Methods for Corrugated Packaging: Flexo vs Digital

High-quality graphics are increasingly important for corrugated packaging, especially retail-ready packages and displays. Understanding printing options helps optimize specifications.

Flexographic Printing:

How It Works:

Flexible rubber or photopolymer plates transfer ink to the corrugated surface through direct contact.

Advantages:

• Fast production speeds

• Low cost per unit for large runs

• Wide range of ink options

• Suitable for rough corrugated surfaces

Limitations:

• Plate costs for each design

• Setup time for job changes

• Minimum order quantities apply

• Less detail than lithography

Best For:

• High-volume shipping boxes

• Standard repeat designs

• Cost-sensitive applications

Digital Printing:

How It Works:

Inkjet or electrostatic technology applies ink directly from digital files—no plates required.

Advantages:

• No plate costs or setup

• Variable data printing possible

• Quick turnaround

• Economical for short runs

• High-quality graphics

Limitations:

• Higher cost per unit on long runs

• Slower production speeds

• Equipment investment required

Best For:

• Short runs and prototypes

• Personalized packaging

• High-quality retail displays

• Versioned packaging

Hybrid Approaches:

Many converters use both technologies:

• Flexo for standard elements

• Digital for variable elements

• Pre-printed liner then corrugated

Impact on Adhesives:

Printed surfaces may require adhesive adjustments as ink can affect bonding. Test adhesive compatibility with printed papers before production.