Vapor Shrinkage Tester

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.

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

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

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)

Technical Parameters

Test Procedures

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