Automatic folding recovery tester

This instrument detects the recovery property of fabrics by applying specific test methods (BS, ISO, AATCC). It presses fabric samples under certain loading devices for a specified time, then releases them into sample clamps to allow free recovery while recording the recovery angle.

The equipment determines sample recovery performance from horizontal creases through measured wrinkle recovery angles, particularly suitable for wrinkle-prone fabrics like cellulose-based and other woven materials.

Applications

The Automatic Folding Recovery Tester measures the recovery ability of a sample after being folded for a certain period of time under a specific load. It is suitable for fabrics made from any pure or blended fibers. Materials that cannot maintain their shape under specific folding conditions, such as softer, thinner, and more easily bent materials, can have their folding resistance evaluated using this device.

Standards

AATCC 66-2014: Woven Fabrics Wrinkle Recovery: Recovery Angle Method

GB/T 3819-1997: Textiles—Determination of the recovery from creasing of a folded specimen of fabric by measuring the angle of recovery—Part 1: Method of the horizontally folded specimen

ISO 2313:2021: Part 1: Textiles—Determination of the recovery from creasing of a folded specimen of fabric by measuring the angle of recovery—Part 1: Method of the horizontally folded specimen

Part 2: Part 2: Method of the vertically folded specimen

GA 573-2009: Police Uniforms—Test Method for the Recovery of Fabrics from Creases

BS EN 22313:1992: Textile fabrics—Determination of the recovery from creasing of a horizontally folded specimen by measuring the angle of recovery

Features

1. Ergonomic load application device for convenient specimen compression

2. Precision sample clamping mechanism ensuring horizontal positioning without bulging or slippage

Technical Parameters

Accessoriess

1. Standard weights (2000g, 1000g, 500kg, 200kg)

2. 5×3 inch plastic plates (5 pieces/set)

3. Grading charts (optional)

Test Procedures

1. Sample Preparation and Conditioning

Cut three 15cm × 28cm samples according to the test standard (e.g., AATCC 128), with the length along the warp of the fabric/the longitudinal direction of the knitted fabric. Mark the front of the sample.

Place the samples in a standard atmospheric environment (temperature 21±1℃, relative humidity 65±2%) for at least 8 hours to condition and ensure sample stability.

2. Instrument Preparation

Check the instrument calibration status and confirm that the flange, spring clamps, weights, and other components are intact.

Connect the power supply, start the equipment, and complete the system initialization via the touchscreen to enter the operating interface.

3. Sample Clamping and Parameter Setting

Lift and lock the upper flange of the instrument. Wrap the sample, front side out, along its length around the upper flange and clamp it with the spring clamp. Wrap the other end of the sample around the lower flange and secure it with the clamp as well.

Adjust the bottom of the sample to ensure it is flat and without sagging between the upper and lower flanges. Release the flange lock and gently lower the upper flange until it comes to rest.

Select the corresponding standard (e.g., AATCC 128) on the touchscreen and set the parameters: applied load (3500g weight) and holding time (20 minutes).

4. Pressure Wrinkling and Release Recovery

Start the test program. The instrument will automatically place the weight and start timing. After 20 minutes, the instrument will automatically remove the weight.

Remove the spring clamp, lift the upper flange, and gently remove the sample (avoiding twisting and wrinkling). Clamp the short side of the sample and suspend it vertically in a standard atmospheric environment.

5. Post-Recovery Rating

After suspending the specimens for 24 hours, transfer them to the rating area (maintaining standard temperature and humidity, and turning off other light sources);

Fix the specimens onto the observation board (warp direction perpendicular to the ground), place reference photographs on both sides of the specimens, and have 3 professional ratingrs independently compare and rate them.

6. Result Processing

Collect all rating results, calculate the average rating for each specimen, and output the fabric wrinkle recovery performance level.

(If using standards such as ISO 9867. only the specimen size, load/time, and other parameters need to be adjusted; the core process remains the same.)