Automatic Long Filament Curl Shrinkage Tester

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Whats/App: +86 181 0160 0864

The Automatic Long Filament Curl Shrinkage Tester is designed to measure boiling water shrinkage rate, dry heat shrinkage rate, curl shrinkage rate, curl modulus, and curl stability of synthetic fibers. With automatic load adjustment, auto-loading, timing, length measurement, and zero calibration during testing, results are calculated and printed automatically. This instrument is ideal for quality control, R&D, and educational applications in textile and fiber industries.

Application

(1) Synthetic Fibers: Polyester, nylon, polypropylene, acrylic, and other long synthetic filaments.

(2) Filament Yarns: Single filament yarns, multifilament yarns, twisted yarns, and textured yarns.

(3) Textile Products: Knitted fabrics, woven fabrics, industrial textiles, and composite yarn-based materials.

(4) Home Textiles & Apparel: Curtains, upholstery, carpets, sportswear, and hosiery.

(5) Industrial & Technical Textiles: Ropes, fishing lines, seatbelts, filtration materials, geotextiles, and reinforcement fibers.

(6) R&D & Quality Control: Testing heat or moisture shrinkage behavior, curl stability, and modulus to optimize processing and performance.

(7) Educational & Training Use: Demonstrating filament shrinkage and curl behavior in textile laboratories and classrooms.

Standards

(1) GB/T 6506: Synthetic fiber boiling water shrinkage test

(2) GB/T 6505: Synthetic fiber dry heat shrinkage test

(3) ASTM D6774-22: Standard test method for synthetic filament shrinkage

Features

(1) Automatic load adjustment and application ensures precise force during testing.

(2) Auto-loading, timing, and zero calibration for fully automated measurement.

(3) Measures multiple parameters simultaneously: curl shrinkage rate, curl modulus, curl stability, and thermal shrinkage rate.

(4) Supports batch testing up to 30 specimens for high-efficiency evaluation.

(5) Integrated computer system with screen display and printer output for results reporting.

(6) Suitable for various filament yarns and fabrics, allowing broad testing applications.

Parameters

Parameter	Specification
Load Capacity	2.5–5000 cN (adjustable, auto-application), Accuracy: ±0.2 cN
Sample Length	500 × 2 mm
Measurement Range	0–150 mm
Test Parameters	Curl Shrinkage Rate (CC)%, Curl Modulus (CM)%, Curl Stability (CS)%, Thermal Shrinkage Rate (S)%, Mean Value, Standard Deviation, CV Value
Data Interface	Keyboard/mouse input, screen display, printer output
Batch Capacity	30 specimens per batch
Power Requirement	Host: 220V, 50Hz, 0.5 kW; Compressed Air: 0.2–0.3 MPa
Dimensions	650 × 550 × 1770 mm (L×W×H)
Weight	75–80 kg (depending on configuration)

Accessories

(1) Two yarn frames

(2) Printer

(3) Special constant-temperature oven (for dry heat/curl shrinkage tests)

(4) Special constant-temperature water tank (for boiling water shrinkage tests)

(5) Lenvovo brand computer

(6) User manual and software

Test Procedures

(1) Prepare yarn samples and install them in the yarn frames.

(2) Select the desired test method (boiling water shrinkage, dry heat shrinkage, or curl shrinkage).

(3) Start the automatic loading and zero calibration process.

(4) Begin testing: the system automatically applies load, measures shrinkage, and records curl data.

(5) View test results on the screen and print reports as needed.

(6) Remove samples and clean yarn frames after testing.

Maintenance Information

(1) Regularly inspect yarn frames and clamps for wear or damage.

(2) Clean the constant-temperature oven and water tank to prevent residue buildup.

(3) Calibrate load cells and measurement sensors at recommended intervals.

(4) Check compressed air system for leaks or pressure inconsistencies.

(5) Keep the control computer and printer free from dust and moisture.

(6) Follow manufacturer’s guidelines for software updates and backup of test data.

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