HY-728 Pelt Color Fastness and Shedding Tester
| Origin | Guangdong, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | HY-728 |
| Pricing | Available Upon Request |
| Friction Head Diameter | Φ30 mm |
| Stroke Lengths | 270 mm / 210 mm / 150 mm |
| Reciprocating Cycles Range | 0–999,999 |
| Cycle Rate | 26 cycles/min |
| Applied Pressure (Pelt Testing) | 19,700 ± 140 Pa |
| Brush Load (Blanket Shedding Test) | 1,098 g |
| Compliance Standards | QB/T 2790, GB/T 14254, GB 5460T |
Overview
The HY-728 Pelt Color Fastness and Shedding Tester is an engineered dual-mode laboratory instrument designed for objective evaluation of color migration resistance and fiber shedding behavior in premium natural pelts and woven woolen textiles. It operates on two distinct, standardized mechanical test principles: (1) dry/wet crocking assessment per ISO 105-X12 and QB/T 2790 methodologies, where controlled linear reciprocation of calibrated fabric pads against dyed pelt surfaces simulates perspiration-induced or mechanical abrasion-induced color transfer; and (2) directional brushing under defined normal force and stroke parameters to quantify loose fiber release from carpet-grade woolen blankets, aligned with GB/T 14254 and GB 5460T protocols. The system’s rigid cast-aluminum frame, precision-machined linear guide rails, and programmable stepper motor drive ensure high reproducibility across repeated test sequences—critical for QC laboratories operating under GLP-compliant workflows.
Key Features
- Dual-test configuration: Independent operational modes for pelt color fastness (dry/wet crocking) and blanket shedding quantification, each with dedicated pressure calibration and stroke presets.
- Adjustable stroke length selection (150 mm, 210 mm, 270 mm) enables method-specific alignment with QB/T 2790 (270 mm standard for pelt testing) and GB/T 14254 (210 mm typical for blanket evaluation).
- High-accuracy pressure application: Pelt mode delivers a nominal 19.7 kPa ± 140 Pa via pneumatic load compensation; blanket mode applies a precisely weighted 1,098 g brush load using calibrated stainless-steel tension weights.
- Programmable reciprocating counter (0–999,999 cycles) with real-time digital display and automatic stop functionality ensures strict adherence to test duration requirements.
- Modular accessory set includes ISO-standard grey scale reference cards (ISO 105-A02), pelt mounting clamps with adjustable tension, metal comb for fiber alignment prior to brushing, and reusable friction pads compliant with ASTM D2054 specifications.
Sample Compatibility & Compliance
The HY-728 accommodates flat, non-stretch pelts (shearling, lamb, mink, fox) up to 150 × 150 mm and woven woolen blankets with pile heights ≤ 25 mm. All mechanical parameters—including stroke amplitude, cycle rate (26 cpm ± 0.5 cpm), and normal force—are traceable to national metrological standards (CNAS-accredited calibration optional). The instrument satisfies mandatory test method requirements for Chinese textile quality certification (GB standards), export-oriented pelt grading (QB/T 2790), and third-party lab accreditation (CMA, CNAS). Its mechanical architecture supports audit-ready documentation when paired with optional 21 CFR Part 11–compliant data logging software (sold separately).
Software & Data Management
While the base HY-728 operates via embedded microcontroller interface with tactile keypad and LED display, optional PC-integrated software enables automated test sequence scripting, cycle-by-cycle event logging, and CSV-exportable reports. When used with a certified 0.0001 g analytical balance (e.g., Mettler Toledo XP2U), the system supports full mass-loss traceability for shedding tests—including pre-test sample conditioning (20°C/65% RH, 4 h), post-test vacuum collection, and gravimetric calculation per GB 5460T Annex B. Audit trails include operator ID, timestamp, parameter lock status, and calibration certificate expiry date—essential for GMP-aligned textile QA departments.
Applications
- Color fastness validation of chrome-tanned and vegetable-dyed pelts prior to export shipment to EU and North American markets.
- Comparative assessment of dye fixation efficacy across acid, reactive, and metal-complex dye systems applied to fur-bearing substrates.
- Shedding performance benchmarking of domestic wool-blend carpets against GB/T 14254 Class A–C classification thresholds.
- Root-cause analysis of excessive fiber loss in finished rugs linked to improper carding, insufficient resin binding, or inadequate post-weave steaming.
- Internal R&D screening of anti-shedding polymer coatings applied to wool yarn prior to commercial weaving trials.
FAQ
What standards does the HY-728 directly support?
QB/T 2790 (pelt crocking), GB/T 14254 (woolen blanket shedding), and GB 5460T (fiber loss quantification) — all implemented via hardware-configurable stroke, pressure, and cycle parameters.
Is operator training required for compliance-critical use?
Yes. Standardized operation requires documented competency verification per ISO/IEC 17025 Clause 6.2.1; we provide SOP templates and on-site technician familiarization upon request.
Can the instrument be validated for ISO/IEC 17025 accreditation?
Yes. With optional calibration certificate (traceable to NIM, China), uncertainty budget documentation, and environmental monitoring log integration, it meets Clause 6.4.10 equipment validation requirements.
What maintenance intervals are recommended for long-term repeatability?
Linear rail lubrication every 500 operating hours; friction pad replacement after 500 test cycles; annual verification of brush load mass and stroke encoder accuracy.
Is remote diagnostics supported?
Not natively. However, RS-232 output enables connection to external SCADA or LIMS platforms for centralized parameter monitoring and alarm triggering.
