I. Product Overview
The Vapor Shrinkage Tester is a specialized thermal analysis instrument designed to measure dimensional changes in textiles, polymers, or composites when exposed to steam or saturated vapor environments. It simulates industrial finishing processes (e.g., sanforization) to evaluate shrinkage resistance and dimensional stability of materials.
- Type: Environmental test chamber with steam generation
- Test Temperature: Ambient +20°C to 100°C
- Steam Pressure: 0.1-0.3 MPa (adjustable)
- Chamber Size: 500×500×600mm (W×D×H)
- Applications: Textile finishing, geotextiles, medical fabrics
II. Technical Specifications
| Parameter |
Specifications |
| Steam Generation Rate |
1.5kg/h (max) |
| Shrinkage Measurement |
Laser grid scanner (±0.1mm accuracy) |
| Test Duration |
1-999 minutes programmable |
| Power Supply |
380V/50Hz, 3kW |
| Humidity Control |
95%±3% RH (at 100°C) |
| Dimensions |
1200×800×1800mm (L×W×H) |
III. Key Features
- Dual Test Modes:
- Static Vapor Mode: Continuous steam exposure
- Dynamic Steam Mode: Cyclic steam/air alternation
- Advanced Measurement:
- 3D surface mapping (16,000 measurement points)
- Real-time shrinkage rate calculation
- Automated sample alignment system
- Safety Features:
- Pressure relief valve (auto-shutdown at 0.35MPa)
- Anti-scald door interlock
- Overheat protection (triggers emergency cooling)
IV. Compliance Standards
- ISO 6330 (Textile testing - Textile fabrics)
- ASTM D3759 (Shrink resistance of fabrics)
- AATCC 133 (Dimensional changes in fabrics)
- GB/T 8629 (Chinese textile shrinkage standard)
V. Applications
- Textile Manufacturing: Pre-shrinkage treatment validation
- Quality Control: Batch testing of finished fabrics
- R&D: Developing shrink-resistant coatings
- Forensic Analysis: Evaluating garment shrinkage causes
Standard Test Procedure:
- Sample Preparation: Cut 50×50mm specimens
- Loading: Secure in steam-permeable clamps
- Parameter Setup: Select steam pressure/temperature
- Exposure: Run test cycle (typically 30-60min)
- Analysis: Compare pre/post-test dimensions via software
Safety Precautions:
- Use heat-resistant gloves when handling samples
- Maintain 1m clearance from steam vents
- Decontaminate chamber after testing chemicals
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