Yarn Evenness Tester

• It uses computer processing for data calculation, with monitoring software based on the Windows platform, featuring a full Chinese graphical interface, good system integration, and high stability.
• The Yarn Evenness Tester measures CV% value, U% value, H value, SH value, and twelve levels of defects in real time.
• Additionally, it provides various graphical indicators, such as variation-length curves, unevenness curves, spectral diagrams, and linear density-frequency distribution diagrams of evenness and hairiness, which help evaluate yarn quality easily.
• With a fine continuous wave spectrum and 340 channels, it allows users to accurately analyze the fault location of the textile process.
• Moreover, the tester includes the deviation rate (DR%) value, scatter plot, DR curve, and relative deviation coefficient ADR (Lc), which reflect the random and uneven structural characteristics of the yarn and estimate the appearance quality of the cloth surface after weaving.
• Its statistical analysis system generates annual, quarterly, monthly, and daily reports for specific varieties of test data, along with statistical distribution charts of conventional test indicators, thus helping users observe medium- and long-term changes.
• An expert system assists users in analyzing textile process failures and evaluating spinning levels.
• Uneven curves can be stored for more detailed analysis by users.
• The electromagnetic tensioner applies tension through software settings, ensuring precise control.
• Furthermore, the transmission system uses servo drive technology, offering low noise and high reliability.
• The top roller automatically expands and contracts, slowing down wear and stabilizing the yarn.
• Finally, an automatic zero adjustment function improves testing efficiency and simplifies operation

General Specifications

• 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 and Deviation Rate

• Coefficient of variation:
  • CV% or unevenness (U%) and CV(l) 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 value test range: 0.00%–100.00
  • Reference length and threshold: 20cm, ±35%; 20cm, ±30%; 1m, ±5%; 1m, ±5%; 1m, ±10%
• DR curve:
  • Given reference lengths: 1cm, 10cm, 20cm, 50cm, 1m, with thresholds from 0 to 50%
  • Positive and negative deviation rate (DR) curves: 0–50%
• Relative offset coefficient ADR (Lc): Cutting length Lc 1cm, 20cm, 1m

Defect Value and Spectrogram

• Defect value:

  • Outputs 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:

  • Measurable wavelength range of the ordinary spectrum chart: 1cm–2937m, with 85 spectrum channels
  • Fine spectrogram measurable wavelength range: 1cm to 2937m, with 340 spectrum channels

Line Density and Statistical Distribution

• Line Density Frequency Distribution Plot: Provides two linear density frequency distribution diagrams ranging from -100% to +100% and exceeding +100%

• Line Density Frequency Distribution Plot:

  • Includes two statistical functions: one for the statistics of the test data (e.g., mean, inter-tube variation system CVb, 95% confidence interval Q95, maximum value, minimum value), and the second for 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%)
  • Statistical time can be set arbitrarily in “day”

   

Hairiness Test Index

Why Choose the ADL-300 Yarn Evenness Tester?

The ADL-300 Yarn Evenness Tester helps textile manufacturers ensure consistent yarn quality. Since yarn evenness and hairiness directly impact the final product’s appearance and performance, this Yarn Evenness Tester provides precise measurements to identify defects early. For instance, it uses advanced servo drive technology and a fine continuous wave spectrum with 340 channels to deliver reliable data. Moreover, its statistical analysis system generates detailed reports, enabling manufacturers to monitor long-term trends. Consequently, users can meet industry standards like ASTM D 5647 while improving product reliability.