In the fast-evolving world of flexible packaging, even the smallest print defect can lead to material waste, delayed deliveries, and customer dissatisfaction. Manual inspection methods are increasingly inadequate for high-speed, multi-layered printed flexible packaging materials. Modern manufacturers are turning to 100% automated print inspection systems—vision-based technologies that enable real-time defect detection, roll mapping, and optimised quality control.
Why does print defect detection matter?
Consumers expect aesthetically appealing packaging, brands need high quality with low costs, and hence and converters demand defect-free print runs with colour consistency. Print imperfections can damage product integrity, increase finished goods rejection, and lead to batch rejections. 100% print defect detection systems provide a significant advantage, as we will see.
What is 100% automated print inspection?
A 100% print inspection system is an inline, real-time quality assurance solution using line scan cameras, special illumination, customised software, and image processing algorithms to inspect 100% of the web surface during production. This system ensures print errors don’t pass through.
Key print defects detected:
Some examples of print defects
How does it work?
A 100% print image inspection system typically consists of:
- Line scan cameras: positioned across the width of the web, capturing continuous, high-resolution images
- Stored template comparison: live images are compared pixel-to-pixel with a stored reference image template
- Defect classification & thresholding: software classifies detected issues into categories
- Roll mapping & snapshot logging: each defect is saved with its location on the roll, making it easy to re-inspect or remove defective portions
- Post-run analysis & reporting: roll maps, defect trends, and LAB colour data are logged for QA review and compliance reporting
A typical workflow in flexible packaging inspection
Applications in flexible packaging
100% defect detection systems support key processes in:
- Printing: detect defects such as misregistration, colour variation, bubbles, ink splashes, streaks, patches etc
- Rewinding: flags print defects and logs their positions for targeted defect removal, preventing defective rolls from reaching customers
Key benefits
Investing in a 100% automatic print inspection system offers:
- Reduced print waste
- Improved productivity
- Enhanced quality control
- Compliance with brand guidelines
Industry use cases
100% print quality inspection systems are widely used in:
- Food and beverage packaging
- Pharmaceutical and medical pouch printing
- Home and personal care flexible packs
- Pet food, seed, and agrochemical packaging
- Multicolour packaging
- Security printing
Conclusion: safety, health and environment
In a market demanding precision, speed, and accountability, 100% print inspection systems offer a future-ready approach to defect detection and prevention. AxisValence’s DetectAXIS 100% defect detection system is designed to meet the specific needs of printers and converters, ensuring every product meets high standards.
AxisValence is committed to promoting safety, health, and environment on the shop floor. It is a well-recognised and leading manufacturer of 100% print inspection systems globally.