The Accuracy of FIBROTEST for cotton fiber length and strength measurements

study sensitivity of cotton fiber instrument (CCS)


  • Mona Shalaby Cotton Research Institute- Agricultural Research Institute



Accuracy,cotton fiberlength and strength, linear density, FIBROTEST, Fibro-sampler.


For investigation of the accuracy of FIBROTEST used two categories of standard calibration cotton, long/strong and short/weak. The present study was carried out at Cotton Research Institute (CRI), Agricultural Research Center (ARC), Giza, Egypt.Before carrying out the tests, the cotton samples were incubated in the BINDER equipment for two days to reach the standard conditions for the tests. The measurements that were analyzed are: length measurements properties, i.e.,upper half mean, upper half mean relative to HVI, 50% span length, 2.5% span length, mean length,uniformity index, uniformity index relative to HVI, short fiber content and short fiber index, and strength properties,i.e., absolute strength, strength relative to HVI, elongation, bundleweight, linear density, force, work and time atbreak. Results indicated that fiber length and strength measurements showed few differences for long / strong and short / weak cotton.The values of these measurements were distributed symmetrically with low skewness and kurtosis.The FIBROTEST gave values for UHM, UI and strength very close to their actual values.It can be admitted that this device is accurate in measuring, but to ensure this is achieved, especially for fiber strength, it is necessary to test a large number of subsamples.Since linear density is the actual effect of fiber strength, so to avoid this, emphasis is placed on linear density to achieve a more accurate measure of strength. The most suitable linear density for the long / strong cotton was 1723 and for the short / weak was 1274.To obtain a specific and repeated amount of linear density to achieve an accurate measurement of strength, the Fibro-sampler has to be considered in any development or modernization of the FIBROTEST device.


Azzoz, B., Ben Hassan, M. and Saki, F. (2008). Adjustment of cotton fiber length by the statistical normal distribution: application to binary blends. Journal of Engineered fibers and fabrics. 3(3):35-46.

Braden, C. A. (2005). Inheritance of cotton fiber length and distribution, Texas A and M Univ., PhD Diss.

Beltwide cotton conference (2007). CSITC activities for assuring the reliability of cotton instruments testing in Africa. 1-34.

Ebaido, E. A. and Rokaya, M. H. (2011). Analytic study of short fiber content in Egyptian cotton. Arab Univ., Jour. Agric. Sci., Ain Shams Univ., Cairo, 19 (1): 193-201.

Ebaido, I. A., Hussein, K. M., Abd-Elrahman, Y. Sh. and Kugler, H. G. (2017).Developing a color diagram for Egyptian cotton.International Journal of Fiber. 7(1): 14-29.

Frydrysh I. A. (1992).A new approach for predicting strength properties of yarn. Text. Res. Jour., 62: 346-348.

Ghosh, A. and Mal, P. (2019).Testing of fibers, yarns and fabrics and their recent developments. In book: Fibers to Smart Textiles. pp.221-256.

Fibrotest Recognition. (2012). 03-21. Doc / 26. 01. / DK/UM.

Hassan, A. A. and Ibrahim, A. A. (2018). Using some fiber properties to predict strength and regularity of carded yarn for some Egyptian cotton varieties. Journal of Applied Middle East. 8(4): 1256-1263.

Hsieh, Y. L. (1999). Structural development of cotton fibers and linkages to fiber quality. In cotton fibers: Developmental Biology, quality improvement and textile processing, Ed. Amarjit S. Basra. The Haworth Press, Inc., Binghamton, NY,pp. 137-162.

Krifa M. and Ethridge E. (2006).Compact spinning effect on cotton yarn quality: Interaction with fiber characteristics. Text. Res. Jour., 76(5): 388-399.

Kugler, G., MörschelU.,and Stein W. (2013). FIBROTEST – Aufsatz_DK. Textechno Herbert Stein GmbH & CO KG, Mönchengladbach.

Kugler, G. (2018). Cotton fibers-comparison of single fiber strength and fiber bundle strength to each other. ITMF Meeting, Bremen. Textechno H. Stein Gmbh&Co. KG. 1-13.

Ruvini, W. M., Eric, F. H., Brendan, K., Jane, K. D. and Carol, M. K. (2020). Importance of cotton fiber elongation in fiber processing. Journal of Industrial Crops and Products. 147: 1-7.

Thibodeaux, D., Senter, H., Knowlton, J. L., McAlister, D. and Cui, X. (2008). A comparison of methods for measuring the short fiber content of cotton. Journal of Cotton Science. 12: 298-305.

Ute B. T. and Kadoglu H. (2014). Regressional estimation of cotton sirospun yarn properties from fiber properties. Autex Res., Jour., 14(3): 161-167.

Yang, S. and Gordon, S. (2016). A study on cotton fiber elongation measurement. 33rd International Cotton Conference Bremen,Germany. 1-15.




How to Cite

Shalaby, M. (2022). The Accuracy of FIBROTEST for cotton fiber length and strength measurements: study sensitivity of cotton fiber instrument (CCS). European Journal of Applied Sciences, 10(2), 147–161.