Toroidal Initial Tack Tester YL-1106F by Yuelian

Overview

The Yuelian YL-1106F Toroidal Initial Tack Tester is an electromechanical force-measurement instrument engineered for the quantitative evaluation of initial adhesive tack—the instantaneous resistance to separation upon brief contact under controlled load and dwell time. Unlike empirical methods such as the inclined plane滚球 test, this system implements a standardized toroidal geometry where a defined-diameter cylindrical probe (typically mounted on a precision-machined steel test plate) is brought into contact with an adhesive surface under programmable normal force, then retracted at a regulated speed while continuously recording peak separation force. This principle aligns with established rheo-adhesive measurement paradigms used in pressure-sensitive adhesive (PSA) development, quality control, and regulatory documentation workflows.

Key Features

• Microprocessor-controlled actuation with closed-loop feedback ensures consistent crosshead positioning and force application across repeated cycles.
• High-resolution load cell calibrated to ±1% full-scale accuracy and 0.01 N resolution, traceable to national metrological standards.
• Adjustable crosshead speed from 0.5 to 500 mm/min, enabling compliance with multiple international test protocols requiring distinct separation velocities.
• Integrated LCD interface with multilingual menu navigation (English default), displaying real-time force-time curves, peak values, and user-defined units (N, gf, kgf).
• Dual-mode data handling: local storage of up to 100 test records with timestamp, test ID, and operator tag; optional USB export for external analysis.
• Thermal-stable mechanical architecture featuring precision-ground ball screw transmission and low-inertia stepper motor drive—minimizing vibration-induced signal noise during high-speed retraction.
• Onboard print function via integrated thermal microprinter supports GLP-compliant hardcopy generation including date/time stamp, sample ID, and pass/fail flags per test.
• Force-hold mode allows stabilization at target pre-load for dwell-time-dependent tack assessment (e.g., 1-second or 5-second contact per ASTM D6195 Annex A2).

Sample Compatibility & Compliance

The YL-1106F accommodates standard PSA-coated substrates—including release liners, films, tapes, labels, and medical-grade adhesives—using interchangeable 25 mm diameter stainless steel test plates (supplied set: 10 pcs). Specimen mounting follows ISO 2922 and ASTM D6195 specimen preparation guidelines: flatness tolerance ≤0.05 mm, surface cleanliness verified per ISO 8502-3, and conditioning at 23 ± 2 °C / 50 ± 5% RH for ≥2 h prior to testing. The instrument satisfies functional requirements of TLMI TT-001 (tack rating scale), FINAT FTM 1 (loop tack method), and ASTM D6195 (probe tack test), and its digital output architecture supports audit-ready data integrity when paired with validated laboratory information management systems (LIMS).

Software & Data Management

While the YL-1106F operates autonomously via embedded firmware, optional PC connectivity (RS-232 or USB-to-serial) enables integration with third-party data acquisition platforms compliant with FDA 21 CFR Part 11 requirements. Raw force-time datasets are exportable in CSV format with column headers specifying timestamp, elapsed time (ms), applied force (N), displacement (mm), and event markers (contact onset, peak force, separation completion). All stored records include immutable metadata: operator ID, environmental log (if external hygrothermograph linked), and calibration certificate reference number—supporting full traceability in GMP/QSR-regulated environments.

Applications

• Formulation screening of acrylic, rubber-based, and silicone PSAs during R&D phase.
• In-process verification of coating uniformity and solvent residual effects on tack development.
• Batch release testing against internal specifications or customer technical agreements.
• Root cause analysis of delamination events in laminated packaging structures.
• Stability studies assessing tack retention after accelerated aging (e.g., 40 °C/75% RH for 14 days).
• Comparative benchmarking against competitive materials using identical test parameters and substrate priming conditions.

FAQ

What adhesive types are suitable for testing on the YL-1106F?
It is validated for pressure-sensitive adhesives applied to flexible substrates (e.g., PET, BOPP, paper) and rigid surfaces (e.g., glass, stainless steel), provided specimens meet dimensional and surface-energy prerequisites outlined in ASTM D6195 Section 6.
Does the instrument support automated calibration verification?
Yes—built-in zero-balance routine and optional external deadweight verification kits (5 N, 10 N, 20 N) allow daily operational checks aligned with ISO/IEC 17025 Clause 6.5.2.
Can test parameters be locked to prevent unauthorized modification?
Administrative password protection restricts access to speed, dwell time, and unit settings—enabling SOP-constrained operation in shared-lab environments.
Is the thermal printer compatible with continuous label stock?
The integrated unit accepts 58 mm wide thermal paper rolls only; custom label printing requires external software-driven thermal printers.
How frequently must the load cell be recalibrated?
Yuelian recommends annual calibration by an accredited metrology laboratory, with interim verification performed before each shift using certified reference weights.