Evenness testers are used to identify the degree and cause of unevenness in the yarn, roving and sliver and to provide various statistical representations for the results. Identification of cause of unevenness leads to rectification of back process in the spinning mills there by leading to improved quality of final package and reducing wastage.
The main factor hampering the quality of fabric is unevenness in the yarn like thick places, thin places and Neps. These imperfections adversely affects the productivity of all the stages of fabric production and results in poor fabric quality. Evenness tester is especially designed to detect the imperfections in yarn, sliver, roving and provide various statistical representations for the results. All kinds of yarns like cotton, PV, Polyester, etc. can be tested using this system. This is not only provides confidence to manufacturer about the quality of product but also helps commercially regarding the purchase and sale of yarn.
TECHNICAL SPECIFICATION |
|
Principle of Operation | Capacitance |
Measurement range for staple fiber | 4 Tex to 40Ktex ( for spun Material) |
Unevenness U% and Coefficient of Variation CV% | Range of 0.15% to 40% |
Testing Speed (m/min) | 8/25/50*/100/200/400 |
Evaluation Time (min.) | 1/ 2.5/ 5 |
Coefficient of Variation CV (L) % | For cut Lengths of 1 ,3, 10 Meters |
Minimum and Maximum values of Mass Variation | For Cut Lengths of 1,3,10 meters |
Index of Irregularity (I) | Relation between Ideal and actual unevenness for staple fiber material indicating technological perfection in yarn manufacturing |
Imperfection Levels
|
Thin, Thick, Neps at all levels at same time for simple test 30%, -40%, -50%, -60% +35% , +50%, +70%,+100 +140%, +200% , +280% , +400% |
Relative Weight Variation | Relative indication of percentage weight variation of the test material between samples, as test length remains same in a series of measurements. Conversion of the mean value of 100% |
Spectrogram Analysis | For machine fault identification |
Statistical Results | Mean Value, Standard Deviation, Q-95% confidence range |
Graphical Result | Diagram, Histogram, L-V Curve( 2D and 3D) |
Reports | YES MIS Date wise, Count Wise, Blend wise, Lot wise, Year wise, Month wise, per KM |
Power | Through CVT plus 1.0 KVA Capacity Spike Suppressor or 5 Ampere capacity. |
Principle
Operation
Results
Advantage
© Copyright 2019 Patwa Kinarivala. All Right Reserved. Privacy-Policy
Designed & Developed by e-intelligence