What Defects Can the SICHANGO Web Inspection System Detect?

In high‑speed printing production, minute defects that escape the human eye are often the root cause of customer complaints and product recalls. The SICHANGO Web Inspection System is purpose‑built to solve this challenge. With 12‑megapixel high‑definition imaging and real‑time detection at speeds up to 600 m/min, it accurately identifies a wide range of common and subtle defects that occur during the printing process.

Below are the main types of defects the system can detect:

🎨 Color & Ink‑Related Defects

• Color difference & inconsistent density – Precisely detects deviations in color and ink density caused by changes in ink volume, pressure, or ink formulation.

• Ink spots & stains – Identifies unwanted droplets or blotches due to dirty ink paths or poor inkjet performance.

• Smudging & ghosting – Detects drag marks from wet ink contacting guide rollers, as well as ghost images caused by plate or roller issues.

🔍 Registration & Positioning Defects

• Misregistration – Detects relative position errors between different colors in multi‑color printing – one of the most common defects in colour printing.

• Missing print / voids – Ensures that all design elements (patterns, text, lines, etc.) are fully printed with no omissions.

🔬 Surface & Substrate Defects

• Scratches & scuffs – Identifies linear damage caused by substrate, rollers, or foreign objects.

• Pinholes & voids – Detects tiny light‑transmitting points caused by material defects or poor printing.

• Foreign matter & dirt – Recognises dust, fibres, and other contaminants mixed into ink or adhering to the material surface.

📐 Graphic & Content Defects

• Broken characters & broken lines – Ensures that fine text, lines, and edges remain complete, sharp, and free from fractures or gaps.

• Barcode / QR code defects – Verifies the readability and print quality of variable data, preventing entire batches from being unreadable at the point of sale.

• Extra printing & missing elements – Detects unwanted extra content (over‑printing) or missing parts of the design.

🧠 Intelligent Features That Enhance Detection

Beyond its broad defect coverage, the SICHANGO system incorporates several smart technologies to improve accuracy and efficiency:

• No manual setup required – Its “AutoScan” technology automatically scans and builds a “golden template” as a reference standard at the start of each print run.

• High‑magnification review – The system supports up to 30x optical zoom, allowing operators to enlarge and inspect any marked defect in detail without stopping the production line.

• Defect data traceability – All detected defects are recorded with their location and images, enabling comprehensive quality analysis and full traceability.

In Summary

The SICHANGO Web Inspection System covers every critical dimension of print quality – from colour and registration to surface finish and graphic content. It acts as an ever‑vigilant, high‑precision quality inspector that performs 100% inspection on high‑speed production lines, ensuring every metre of output meets the highest standards. With this system, printing companies can significantly reduce waste, boost efficiency, and avoid costly customer complaints – right from the source.