Labthink BLJ-02 Disc Peel Tester & YGJ-02A Tape Rolling Machine for Ink Adhesion Testing

Overview

The Labthink BLJ-02 Disc Peel Tester and YGJ-02A Tape Rolling Machine constitute a complementary instrumentation system engineered for quantitative evaluation of ink adhesion strength on flexible packaging substrates. These instruments operate in sequence: the YGJ-02A applies standardized mechanical pressure to bond specified test tape (e.g., glassine or cellophane tape) to the printed surface under controlled load, speed, and cycle parameters; the BLJ-02 then performs a fixed-angle peel separation at a defined velocity and force, enabling objective assessment of ink layer cohesion and interfacial adhesion to the substrate. The methodology is grounded in controlled mechanical delamination principles—specifically, constant-rate tensile separation following standardized contact conditioning—and aligns with internationally recognized test paradigms for surface integrity validation in gravure-printed films, laminated structures, metallized foils, and coated papers.

Key Features

• Microprocessor-controlled operation with dedicated PVC membrane keypad and LCD display for real-time parameter input, status monitoring, and result visualization
• Pre-programmed test protocols compliant with GB/T 7707 (Chinese national standard for gravure print adhesion), GB/T 2792 (peel resistance of pressure-sensitive tapes), and JIS Z0237 (Japanese industrial standard for adhesive tape testing)
• Fixed 180° peel geometry on BLJ-02 ensures repeatability and minimizes angular deviation-induced measurement variance
• Calibrated roller assembly on YGJ-02A features rubber-faced steel rollers with certified hardness (Shore A 60 ± 5) and thickness tolerance ≤ ±0.1 mm, per GB/T 7706 requirements
• Automated end-of-test acoustic alert enhances operator safety and procedural consistency
• Dual-voltage compatibility (220 VAC 50 Hz / 120 VAC 60 Hz) supports global laboratory deployment without external transformers
• Modular design enables independent use of either unit or synchronized workflow integration within QC laboratories

Sample Compatibility & Compliance

The system accommodates standard specimen widths up to 150 mm and lengths ≥ 200 mm, suitable for common flexible packaging formats including BOPP, PET, CPP, aluminum foil laminates, metallized polyester, and glassine paper. Both instruments are validated for use with ISO-standardized test tapes (e.g., PSTC-1, AFERA 4001) and reference-grade glassine tape per GB/T 7707 Annex A. All mechanical tolerances—including disc pressure (100 N ± 1.5 N), roller load (20 N ± 0.2 N), and peel speed (0.8 m/s ± 2%)—are traceable to national metrological standards. The hardware architecture supports GLP-aligned documentation practices when paired with Labthink’s optional data export module (RS232/USB), facilitating audit-ready records for regulatory submissions under ISO/IEC 17025-accredited testing environments.

Software & Data Management

While standalone operation requires no software installation, Labthink provides optional PC-based configuration and reporting software (compatible with Windows 10/11) that enables test method storage, batch logging, statistical analysis (mean, SD, CV%), and PDF report generation. Data output includes timestamped test ID, operator code, environmental conditions (if integrated with optional温湿度 sensor), raw force-time curves, and pass/fail flags against user-defined thresholds. The software adheres to FDA 21 CFR Part 11 principles via configurable electronic signatures, audit trail logging, and role-based access control—supporting compliance in pharmaceutical packaging validation and food-contact material certification workflows.

Applications

• Quantitative verification of ink adhesion in gravure-printed flexible packaging prior to lamination or filling
• Evaluation of vacuum-metallized layer bonding integrity on PET or OPP substrates
• Quality gate testing for coating uniformity and cross-linking efficacy in UV-cured or electron-beam cured surface treatments
• Comparative analysis of primer performance across different film grades (e.g., corona-treated vs. flame-treated PE)
• Root cause investigation of print mottling, scuffing, or rub-off during high-speed converting operations
• Supplier qualification testing per ASTM D3330 (pressure-sensitive tape adhesion) and ISO 8510-2 (peel resistance of bonded flexible materials)

FAQ

What standards does the BLJ-02/YGJ-02A system directly support?
GB/T 7707, GB/T 7706, GB/T 4581, GB/T 2792, JIS C2107, and JIS Z0237 — with mechanical specifications calibrated to meet the dimensional, loading, and timing tolerances mandated by each.
Can the YGJ-02A be used independently for non-printing applications?
Yes — it serves as a general-purpose standardized roller applicator for adhesive tape bonding in ASTM D1000, ISO 29862, and TAPPI T490 testing protocols.
Is calibration certification included with shipment?
Each instrument ships with a factory calibration report referencing national standard weights and certified torque meters; third-party ISO/IEC 17025 calibration services are available upon request.
What maintenance is required for long-term accuracy?
Monthly verification of roller surface cleanliness and rubber durometer (using supplied Shore A tester); annual recalibration of load cells and speed encoders recommended.
Does the system support custom peel angles other than 180°?
No — the BLJ-02 implements a fixed 180° geometry per GB/T 7707; alternative angles (e.g., 90°) require separate instrumentation compliant with ISO 8510-1.