Strip Evenness Tester
Category：Fabric & Textile Tester
Introduction
The Strip Evenness Tester is a high-performance textile laboratory instrument designed to analyze the density and uniformity of fine yarn, roving, and sliver. It provides precise detection of unevenness in cotton, wool, hemp, chemical fiber short fibers, and blended yarns. This instrument enables detailed analysis of the causes of unevenness, offering valuable insights for quality control and production optimization.
Application
The Strip Evenness Tester is suitable for:
(1) Cotton Industry: Testing yarn, roving, and sliver for CV%, U%, thick/thin places, and neps.
(2) Wool Processing: Evaluating short fiber uniformity in wool and blended yarns.
(3) Chemical Fiber Production: Monitoring the consistency of synthetic fibers, including polyester, nylon, and viscose.
(4) Textile Laboratories: Quality control of spun, blended, or pure fiber yarns.
(5) Extended Applications: Can also be applied to research in fiber blending optimization, automated production line monitoring, and textile defect analysis.
(6)Specific products tested include: cotton yarn, wool yarn, hemp yarn, polyester yarn, viscose yarn, blended fiber yarns, roving, and slivers.
Standards
The Strip Evenness Tester aligns with common textile testing standards, including:
(1) ISO 2060:1995 – Textiles – Determination of linear density of yarns (Tex system)
(2) ISO 1833-1:2020 – Textiles – Quantitative chemical analysis of fiber mixtures
(3) ASTM D1425 – Standard Test Method for Evenness of Yarn
(4) GB/T 3811-2010 – Testing of fiber and yarn uniformity
Parameters
| Parameter | Specification |
|---|---|
| Capacitor Detection Slots | 4 |
| Test Range | 4 tex – 80 ktex |
| Test Speed | 8, 25, 50, 100, 200, 400, 800 m/min |
| Test Time | 10 sec – 20 min, adjustable |
| CV%, U% Value Range | 0.2% – 100% |
| Variation-Length Curve | Cutting length: 1 cm – 1000 m |
| Defects Output | Three types simultaneously: – Details: -30%, -40%, -50%, -60% – Coarse section: +35%, +50%, +70%, +100% – Cotton knot: +140%, +200%, +280%, +400% |
| Spectral Diagram | 170 channels, wavelength range 1 cm – 2000 m |
| Linear Density Frequency Distribution | -100% – +100%, +100% – +400% |
| DR% Values | DR(1m, +5%), DR(1m, -5%), DR(20cm, +35%), DR(20cm, -30%) |
| Number of Batch Measurements | ≤20 |
| Power Supply | AC 220V ±10%, 50Hz ±5Hz |
| Power Consumption | ≤400 VA |
Features
(1) High Precision Measurement: Sensitive capacitance sensors detect minute mass variations in textile strands.
(2) Wide Material Range: Supports cotton, wool, hemp, synthetic, and blended yarns.
(3) Comprehensive Analysis: Provides CV%, U%, imperfections, spectrograms, vari-length curves, and linear density distribution.
(4) High-Speed Testing: Capable of up to 800 m/min for rapid production monitoring.
(5) Automated Operation: Features automatic yarn feeding, zero adjustment, and defect alarms.
(6) Expert Analysis Software: Integrated software for root cause diagnosis and corrective action suggestions.
(7) User-Friendly Interface: Windows-based graphical interface for intuitive operation and visualization.
(8) Data Management: Stores, replays, and prints test data for long-term analysis.
Accessories
(1) Main testing unit – 1 set
(2) Sample holders – 4 pcs
(3) Calibration weights – 1 set
(4) Power cable – 1 pcs
(5) User manual – 1 set
(6) Software CD – 1 pcs
(7) Certificate of Quality – 1 set
Maintenance Information
(1) Clean sensor slots and sample holders after each test.
(2) Periodically check calibration using standard reference yarns.
(3) Lubricate moving parts according to the manufacturer’s instructions.
(4) Store the instrument in a dry, dust-free environment to prevent sensor degradation.
(5) Perform software updates and backups regularly to maintain data integrity.
FAQ
1. What is the primary purpose of this tester?
It measures the uniformity and evenness of strip-shaped materials, detecting thickness variations, defects, or inconsistencies along the length.
2. Which materials can be tested using this device?
The tester is suitable for metal strips, plastic films, rubber strips, textiles, and other continuous strip materials.
3. How does the tester operate?
It uses precision sensors or micrometers to scan the strip along its length and width, recording variations in thickness or surface evenness.
4. Which standards does this tester comply with?
It supports international and industry standards for material thickness and evenness testing, including ASTM, ISO, and GB/T protocols.
5. Who typically uses this equipment?
Material manufacturers, quality control laboratories, and R&D teams use it to ensure product consistency, optimize production processes, and maintain quality standards.
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