JIS Colour Fastness Rubbing Tester (Gakushin)
Category：Interior Material Tester
Introduction
The Japanese Standard Color Fastness to Rub Tester (Gakushin) is a specialized instrument designed to evaluate the colorfastness of textiles to friction and abrasion, adhering to JIS L 0849 (Japanese Industrial Standard). It quantifies color transfer and staining resistance under controlled rubbing conditions, critical for ensuring compliance with Japanese textile quality requirements.
Applications
Textile Manufacturing: Testing dyed fabrics for consumer goods
Quality Control: Batch inspection of apparel and home textiles
R&D: Developing fade-resistant dyes and finishes
Forensic Analysis: Evaluating wear-induced color degradation
Standard Operation Workflow:
Sample Preparation: Cut to size, clamp in test frame
Parameter Setup: Select cycle count and rubbing force
Testing: Initiate automated rubbing cycles
Analysis: Measure color transfer via spectrophotometer
Cleaning: Automated pad decontamination
Safety Precautions:
Avoid contact with moving parts during operation
Use heat-resistant gloves when handling samples
Maintain ventilation in testing area
* JIS-certified felt pads and calibration weights * NIST-traceable colorimeter * Energy-efficient low-power motor * Includes 5-year mechanical warranty * Compact design for lab/bench use**Technical Highlights**- ±0.5 ΔE color measurement accuracy (JIS-compliant) – 10.000-cycle fatigue testing mode – Real-time digital staining grading software – Motorized load adjustment (500g precision) – CE/IECEx certified for safe operation
Standards
JIS L 0849 :Colorfastness to rubbing
ISO 105-X12 :International colorfastness test
AATCC 8:Durability of colorfastness
GB/T 3920 :Chinese textile abrasion standard
Features
JIS L 0849 Compliance:
Simulates real-world friction (e.g., garment rubbing)
Standardized felt pad and load system
Advanced Features:
Real-time color difference analysis (ΔE)
AI-based staining classification (5 severity levels)
Anti-slip clamping mechanism
Automation:
Programmable cycle counter
Motorized rubbing head
Self-cleaning abrasive pad holder
Technical Parameters
| Parameter | Specifications |
|---|---|
| Rubbing Force | 500±10g (programmable via weight system) |
| Rubbing Speed | 60±5 cycles/minute (adjustable) |
| Abrasion Head | Standard 10mm diameter felt pad (JIS-approved) |
| Measurement Tools | Digital colorimeter (ΔE accuracy ±0.5) |
| Test Duration | 1–10.000 cycles (auto-stop) |
| Power Supply | 100–240V/50/60Hz, 0.5kW |
| Dimensions | 600×400×800mm (L×W×H) |
Accessoriess
1. Flat test platform;
2. Transparent resin safety cover for high safety;
3. 1.5 R friction head (radius of curvature 1.5mm);
4. Sharp-angled friction head (for testing flocked products);
5. Load weights (300g, 500g, 800g);
6. Fixing device for thick test fabrics (maximum thickness 8mm);
7. Flat friction head (20×20mm, for testing printing inks and coatings).
