The Yarn Evenness Tester is a universal, high-performance textile laboratory instrument. Specifically, it is used to test the unevenness and hairiness of yarns. It is suitable for pure cotton, wool, silk, linen, and chemical fiber short fibers, as well as spun and blended yarns, making it highly significant for improving and ensuring yarn quality.

Main Features

Data calculation is performed using computer processing, and the monitoring software is based on the Windows platform, featuring a full Chinese graphical interface, good system integration, and high stability. Additionally, it can test CV% value, U% value, H value, SH value, and twelve levels of defects in real time.
Moreover, it provides various graphical indicators such as variation-length curves, unevenness curves, spectral diagrams, and linear density-frequency distribution diagrams of evenness and hairiness, making it easy to evaluate yarn quality. It also features a fine continuous wave spectrum with 340 channels, which helps users accurately analyze fault locations in the textile process.
Furthermore, the system includes deviation rate (DR%) values, scatter plots, DR curves, and the relative deviation coefficient ADR (Lc), reflecting the random and uneven structural characteristics of the yarn and aiding in estimating the appearance quality of the fabric surface after weaving. These tools provide new methods for analysis and evaluation.
The statistical analysis system can generate annual, quarterly, monthly, and daily reports for specific test varieties and provide statistical distribution charts of conventional test indicators, which is helpful for observing medium- and long-term trends. In addition, the expert system assists users in analyzing textile process failures and evaluating spinning quality. Unevenness curves can also be stored for more detailed analysis.
The electromagnetic tensioner applies tension through software settings, while the transmission system employs servo drive technology for low noise and high reliability. Meanwhile, the top roller automatically expands and contracts, reducing wear and improving yarn stability. The automatic zero adjustment function further enhances testing efficiency and simplifies operation.

Test Standard

ASTM D 5647, Q/JG6.72-2002

Technical Specifications and Parameters

Yarn count test range	Dry 4tex~80ktex
Test speed	4m/min, 8m/min, 25m/min, 50m/min, 100m/min, 200m/min, 400m/min
Test time	Set arbitrarily between 10s and 20min in units of 10 seconds.
Coefficient of variation	CV%) or unevenness (U%) and CV(1) variation length curve CV% or U% value test range 0.20%~100.00 Variation-length curve cutting length 1cm~983m
Deviation rate (DR%) value DR curve Relative offset coefficient ADR (Lc)	DR value test range 0.00%~100.00 Reference length and threshold 20cm,+35%; 20cm,-30%; 1m,+5%; 1m,-5%; 1m,+15%; 1m,-10% DR curve: given reference lengths 1cm, 10cm, 20cm, 50cm, 1m, the threshold is from 0 to 50%. Positive and negative deviation rate (DR) curves of 0~50%. Relative offset coefficient ADR (LC): cutting length Lc 1cm, 20cm, 1m
Defect value	Can output defect values with twelve levels of sensitivity at the same time Details -30%, -40%, -50%, -60 Thick place +35%, +50%, 70%, +100 Neps +140%, +200%, +280%, +400
Spectrogram	The measurable wavelength range of the ordinary spectrum chart is 1cm~2937m, and the number of spectrum channels is 85. The fine spectrogram can measure the wavelength range from 1cm to 2937m and the number of spectrum channels is 340.
Line Density Frequency Distribution Plot	It can provide two linear density frequency distribution diagrams ranging from -100% to +100% and exceeding +100%.
Line Density Frequency Distribution Plot	It has two statistical functions: one is the statistics of test data, such as mean mean, inter-tube variation system CVb, 95% confidence interval Q95, maximum value, minimum value, etc.; the second is the spectrum of the batch test Figures and variation-length curves are statistically analyzed graphically.
Statistical distribution chart	Statistical distribution of commonly used test indicators (CV%, details -50%, thick spots +50%, neps +200%) Figure, the statistical time can be set arbitrarily in “day”.
Hairiness test index	Yarn count range: 4tex~160tex Test speed: 200m/min, 400m/min Output the hairiness H value and standard deviation SH. Output hairiness spectrum, hairiness variation-length curve, hairiness distribution diagram, hairiness uneven curve, etc.

Why Choose the Yarn Evenness Tester?

The Yarn Evenness Tester is vital for textile manufacturers and labs aiming to enhance yarn quality. Since unevenness and hairiness impact fabric performance, this tester delivers accurate results to improve production processes. It supports a wide range of yarn types, ensuring versatility, while its expert system and graphical tools aid in fault analysis. This leads to better cloth surface quality and compliance with industry expectations. For more details or to request a demo, contact our team today.

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Yarn Evenness Tester

Availability: In Stock
Brand: AdLab
Model: ADL-300
Origin: Europe

Easy to Use
Test Standard ASTM D 5647, Q/JG6.72-2002
High Stability

Description

Yarn count test range	Dry 4tex~80ktex
Test speed	4m/min, 8m/min, 25m/min, 50m/min, 100m/min, 200m/min, 400m/min
Test time	Set arbitrarily between 10s and 20min in units of 10 seconds.
Coefficient of variation	CV%) or unevenness (U%) and CV(1) variation length curve CV% or U% value test range 0.20%~100.00 Variation-length curve cutting length 1cm~983m
Deviation rate (DR%) value DR curve Relative offset coefficient ADR (Lc)	DR value test range 0.00%~100.00 Reference length and threshold 20cm,+35%; 20cm,-30%; 1m,+5%; 1m,-5%; 1m,+15%; 1m,-10% DR curve: given reference lengths 1cm, 10cm, 20cm, 50cm, 1m, the threshold is from 0 to 50%. Positive and negative deviation rate (DR) curves of 0~50%. Relative offset coefficient ADR (LC): cutting length Lc 1cm, 20cm, 1m
Defect value	Can output defect values with twelve levels of sensitivity at the same time Details -30%, -40%, -50%, -60 Thick place +35%, +50%, 70%, +100 Neps +140%, +200%, +280%, +400
Spectrogram	The measurable wavelength range of the ordinary spectrum chart is 1cm~2937m, and the number of spectrum channels is 85. The fine spectrogram can measure the wavelength range from 1cm to 2937m and the number of spectrum channels is 340.
Line Density Frequency Distribution Plot	It can provide two linear density frequency distribution diagrams ranging from -100% to +100% and exceeding +100%.
Line Density Frequency Distribution Plot	It has two statistical functions: one is the statistics of test data, such as mean mean, inter-tube variation system CVb, 95% confidence interval Q95, maximum value, minimum value, etc.; the second is the spectrum of the batch test Figures and variation-length curves are statistically analyzed graphically.
Statistical distribution chart	Statistical distribution of commonly used test indicators (CV%, details -50%, thick spots +50%, neps +200%) Figure, the statistical time can be set arbitrarily in “day”.
Hairiness test index	Yarn count range: 4tex~160tex Test speed: 200m/min, 400m/min Output the hairiness H value and standard deviation SH. Output hairiness spectrum, hairiness variation-length curve, hairiness distribution diagram, hairiness uneven curve, etc.

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Technical Specifications and Parameters

Why Choose the Yarn Evenness Tester?

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