+86 187 3810 5965 If your food packaging line struggles with smudged dates, faded barcodes, or codes that rub off during handling, the root cause may lie in your coding technology. For mid-to-high volume food producers, NAXJET's industrial coding solutions deliver permanent, food-safe marking that withstands harsh production environments while meeting global compliance standards.
Why permanent coding matters for food safety
Food packaging codes serve as critical traceability tools. A 2025 FDA report revealed that 37% of recalls involved mislabeled or untraceable products, with faded codes accounting for 12% of labeling-related issues. Traditional contact printers often fail on:
- Glossy film packaging (e.g., stand-up pouches)
- Frozen food surfaces (-18°C environments)
- High-speed lines (over 60m/min)
- Oily or condensation-prone surfaces
NAXJET's non-contact coding systems eliminate these risks through two core technologies:
Technology comparison: CIJ vs TIJ for food packaging
| Feature | Continuous Inkjet (CIJ) | Thermal Inkjet (TIJ) |
|---|---|---|
| Substrate compatibility | Best for curved/uneven surfaces (bottles, cans) | Ideal for flat/flexible packaging (pouches, films) |
| Speed capability | Up to 300m/min (continuous operation) | Up to 120m/min (variable content) |
| Ink adhesion | Requires specialized food-grade solvents | MEK-free inks available for direct food contact |
| Maintenance frequency | Daily cleaning required | Weekly maintenance cycles |
| Typical cost per 1000 prints | $0.03-$0.08 (solvent-based) | $0.01-$0.05 (water-based) |
For primary packaging (directly touching food), NAXJET's TIJ systems with food-contact-approved inks (FDA 21 CFR 175.300 compliant) provide the safest option. Secondary packaging (cartons, cases) can use either technology depending on speed requirements.
Real-world compliance solutions
Case 1: Dairy producer eliminates smudged dates
A Southeast Asian dairy plant faced 15% product rejection due to smudged expiration dates on high-moisture yogurt cups. After switching to NAXJET's CIJ system with quick-dry food-grade ink, rejection rates dropped to 2% within 3 weeks. The system's IP65-rated printhead withstood daily washdowns without failure.
Case 2: Snack food factory meets GS1 standards
When a major retailer mandated GS1-compliant 2D codes on all packaging, a potato chip manufacturer upgraded to NAXJET's multi-head TIJ system. The solution printed crisp DataMatrix codes at 90m/min on both matte and glossy pouches, achieving 100% scanability during audit testing.
3 compliance must-haves for food coders
- Food-grade certification: Verify inks meet FDA/EU 10/2011 standards for direct food contact
- Audit trail capability: Choose systems that log coding parameters (time, date, operator) for traceability
- Line integration: Ensure compatibility with your existing MES/ERP system for seamless data flow
NAXJET's coding controllers feature built-in protocol converters for easy integration with Rockwell, Siemens, and other common PLC systems, reducing implementation time by up to 40% compared to generic solutions.
FAQs
What makes NAXJET's food-grade inks different?
Our inks use nano-pigment technology for deeper penetration into packaging surfaces, creating codes that resist abrasion, moisture, and freezing without requiring hazardous solvents. All formulations pass migration testing per EU 10/2011 Annex III.
How often do printheads need replacement?
Under normal conditions (5-day weeks, 16-hour shifts), TIJ printheads last 12-18 months. CIJ nozzles require replacement every 6-9 months depending on ink type and maintenance frequency.
Can the systems handle variable data like lot numbers?
Yes. Both CIJ and TIJ models support dynamic content through USB/Ethernet interfaces or integrated databases. Our latest TIJ controllers can store up to 1,000 SKU templates for instant switching.
If your current coding system struggles with compliance or reliability, download NAXJET's Food Packaging Coding Guide for side-by-side technology comparisons and sample compliance checklists.
