Before any batch of INKBANK ink ships, it goes through 5 strict quality tests — no shortcuts, no exceptions. This video takes you inside our QC laboratory to see the full process. 🔬 THE 5 QC TESTS (with specs): 0:00 — Intro: Why Every Batch Is Tested 0:22 — Test 1: Viscosity Control (±0.5 mPa·s) Precision viscosity measurement ensures consistent jetting. Too thick = clogged nozzles. Too thin = poor print quality. Every batch held to ±0.5 mPa·s tolerance. 0:45 — Test 2: Surface Tension (Pendant Drop Method) INKBANK Surface Tension Control. Determines how ink forms droplets and adheres to substrate. Prevents misdirected printing, bleeding, and material waste. 1:18 — Test 3: Color Accuracy (ΔE below 1.0) Spectrophotometer measurement against standard reference. Color difference held below 1.0 Delta E — batch to batch, order to order. Guarantees consistent color output. 1:45 — Test 4: Purity (0.2μm Nano-Filtration) Multi-stage filtration down to 0.2 microns. Removes particulate impurities that cause nozzle clogging. Side-by-side: new filter vs used filter. 2:00 — Test 5: Reliability (Rub, UV Aging, Wash Testing) Simulates real-world durability: rub fastness, UV accelerated aging, industrial wash testing. Verifies performance on the shelf and after printing. 2:15 — Conclusion: "Five tests. Zero compromises." It's not a label on the bottle — it's a process. Every single time. 📋 ABOUT INKBANK QC • 16 R&D laboratories with environmental test chambers • 500+ test printers running continuous compatibility validation • ISO 9001 quality management + 6SIGMA process control • Full ERP batch traceability — raw material to finished product • Every shipment includes batch Certificate of Analysis 🎯 WHY THIS MATTERS FOR YOUR BUSINESS → Zero clogging = zero unplanned downtime → Consistent color = zero rejected prints → Batch traceability = predictable production 📥 Request a free ink sample with batch CoA: en.inkbank.com.cn/contact/ 📧 Technical questions: inkbank_group@inkbank.com.cn #InkQC #DigitalPrinting #InkManufacturing #QualityControl #PrintingInk #DTFInk #SublimationInk #UVInk #OEKOTEX #INKBANK #IndustrialPrinting #LabTour