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FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG

Year 2025, Volume: 32 Issue: 139, 237 - 242, 30.09.2025
https://doi.org/10.7216/teksmuh.1560625

Abstract

In this paper, research and studies on yarn spinning for textile fabric production have been investigated, including spinning of hybrid low-twist covered yarns made from natural and modified bast fibres. Friction values were analyzed before spinning to predict the yarn quality and processability of natural and modified bast fibres. Analyzing the friction values before spinning helps to predict the yarn quality and processability, enhancing the production efficiency. For this purpose, tribological tests were conducted on the Lünenschloss, a test rig newly developed by the ITA, including adhesion-slip tests on hemp-based slivers. This test rig uses stationary tensile force measurement to calculate the coefficient of friction of the tested fibre materials. The advantage of the Lünenschloss test rig is that it allows for testing with small quantities, providing reliable results even with minimal sample sizes, such as individual fibres or short yarn segments. Adhesion-slip tests were first carried out on various hemp-based slivers, including those containing polypropylene (PP). The results show that the sliver stability increased with the addition of PP fibres, which promises better stability in later processing steps. To confirm these results, friction coefficients were determined on the Lünenschloss test rig. These results correlated with the results of the adhesion-slip tests. Overall, these preliminary tests allow qualitative statements to be made about the reliable yarn production and resulting yarn stability. Based on these results, it can be assumed that promising yarns can be produced from modified fibres due to their properties.

Project Number

2220NR090E

Thanks

Funded by: Federal Ministry of Food and Agriculture based on a resolution of the German Bundestag

References

  • 1. Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF, Dauerhafte und ressourcenschonende Composite-Strukturbauteile auf Basis neuartig vorbehandelter und verarbeiteter Bastfasern (DuroBast, FKZ: 2220NR090E), https://durobast.de/, 27.09.2024
  • 2. Fiori, S. (2015). Industrial uses of PLA in Poly(lactic acid) Science and Technology: Processing, Properties, Additives and Applications, Chapter 13, Royal Society of Chemistry
  • 3. Ehrenstein, G.W. (2006). Faserverbund-Kunststoffe: Werkstoffe - Verarbeitung – Eigenschaften, Hanser Publications, München
  • 4. Gries, T., Veit, D., Wulfhorst, B. (2015). Textile Technology – An Introduction, Hanser Publications, Cincinnati
  • 5. Wegener, W. (1965). Die Streckwerke der Spinnereimaschinen, Springer Publications, Berlin, Heidelberg, New York
  • 6. Textechno, Herbert Stein GmbH & Co. KG Textile Mess- und Prüftechnik, Automatic Single-Fibre Test System FAVIMAT+, https://www.textechno.com/de/product/favimat/, 27.09.2024
  • 7. Schommer D., Duhovic M., Hausmann J. (2015). Modeling non-isothermal thermoforming of fabric-reinforced thermoplastic composites, 10th European LS-DYNA Conference, Würzburg

GÖVDE LİFLERİNDEN HİBRİT İPLİKLERİN SÜRTÜNME KATSAYISININ ÖLÇÜMÜ – YENİ BİR TEST STANDI KONSEPTİ

Year 2025, Volume: 32 Issue: 139, 237 - 242, 30.09.2025
https://doi.org/10.7216/teksmuh.1560625

Abstract

Bu çalışmada, tekstil kumaş üretimi için yapılan iplik eğirme araştırmaları incelenmiş, doğal ve modifiye kenevir liflerinden yapılan hibrit düşük bükümlü iplikler de ele alınmıştır. İplik kalitesini ve işlenebilirliğini tahmin etmek amacıyla eğirme öncesinde sürtünme değerleri analiz edilmiştir. Sürtünme değerlerinin analiz edilmesi, iplik kalitesini ve ham maddenin işlenebilirliğini tahmin etmeye yardımcı olarak üretim verimliliğini artırmaktadır. ITA tarafından geliştirilen Lünenschloss test cihazında tribolojik testler yapılmış ve kenevir bazlı lif bandları üzerinde çekme dayanımı testleri gerçekleştirilmiştir. Lünenschloss test cihazı, test edilen lif malzemelerinin sürtünme katsayısını hesaplamak için sabit çekme kuvveti ölçümü kullanmaktadır. Bu test cihazının avantajı, küçük miktarlarla test yapabilmesidir. Bu sayede tek bir lif veya kısa iplik parçaları gibi minimal örnek boyutlarıyla bile güvenilir sonuçlar elde edilebilmektedir. İlk olarak, çeşitli kenevir bazlı lif bantları üzerinde, içinde polipropilen (PP) bulunanlar da dahil olmak üzere çekme dayanımı testleri yapılmıştır. Sonuçlar, PP liflerinin eklenmesinin lif bandı stabilitesini artırdığını ve bu durumun ilerleyen işlemlerde daha iyi stabilite sağlayacağını göstermektedir. Bu sonuçları doğrulamak için, Lünenschloss test cihazında sürtünme katsayıları belirlenmiştir. Bu sonuçlar, çekme dayanımı testlerinin sonuçlarıyla korelasyon göstermiştir. Genel olarak, bu ön testler, güvenilir iplik üretimi ve elde edilen iplik stabilitesi hakkında niteliksel değerlendirmeler yapılmasına olanak tanımaktadır. Bu bulgulara dayanarak, modifiye liflerin özellikleri sayesinde kaliteli ipliklerin üretilebileceği söylenebilir.

Project Number

2220NR090E

References

  • 1. Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF, Dauerhafte und ressourcenschonende Composite-Strukturbauteile auf Basis neuartig vorbehandelter und verarbeiteter Bastfasern (DuroBast, FKZ: 2220NR090E), https://durobast.de/, 27.09.2024
  • 2. Fiori, S. (2015). Industrial uses of PLA in Poly(lactic acid) Science and Technology: Processing, Properties, Additives and Applications, Chapter 13, Royal Society of Chemistry
  • 3. Ehrenstein, G.W. (2006). Faserverbund-Kunststoffe: Werkstoffe - Verarbeitung – Eigenschaften, Hanser Publications, München
  • 4. Gries, T., Veit, D., Wulfhorst, B. (2015). Textile Technology – An Introduction, Hanser Publications, Cincinnati
  • 5. Wegener, W. (1965). Die Streckwerke der Spinnereimaschinen, Springer Publications, Berlin, Heidelberg, New York
  • 6. Textechno, Herbert Stein GmbH & Co. KG Textile Mess- und Prüftechnik, Automatic Single-Fibre Test System FAVIMAT+, https://www.textechno.com/de/product/favimat/, 27.09.2024
  • 7. Schommer D., Duhovic M., Hausmann J. (2015). Modeling non-isothermal thermoforming of fabric-reinforced thermoplastic composites, 10th European LS-DYNA Conference, Würzburg
There are 7 citations in total.

Details

Primary Language English
Subjects Yarn Technology, Fiber Technology, Textile Technology
Journal Section Articles
Authors

Seyit Burhanettin Halac

Alina Richter 0009-0009-1370-3286

Project Number 2220NR090E
Publication Date September 30, 2025
Submission Date October 3, 2024
Acceptance Date May 21, 2025
Published in Issue Year 2025 Volume: 32 Issue: 139

Cite

APA Halac, S. B., & Richter, A. (2025). FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG. Tekstil Ve Mühendis, 32(139), 237-242. https://doi.org/10.7216/teksmuh.1560625
AMA Halac SB, Richter A. FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG. Tekstil ve Mühendis. September 2025;32(139):237-242. doi:10.7216/teksmuh.1560625
Chicago Halac, Seyit Burhanettin, and Alina Richter. “FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG”. Tekstil Ve Mühendis 32, no. 139 (September 2025): 237-42. https://doi.org/10.7216/teksmuh.1560625.
EndNote Halac SB, Richter A (September 1, 2025) FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG. Tekstil ve Mühendis 32 139 237–242.
IEEE S. B. Halac and A. Richter, “FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG”, Tekstil ve Mühendis, vol. 32, no. 139, pp. 237–242, 2025, doi: 10.7216/teksmuh.1560625.
ISNAD Halac, Seyit Burhanettin - Richter, Alina. “FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG”. Tekstil ve Mühendis 32/139 (September2025), 237-242. https://doi.org/10.7216/teksmuh.1560625.
JAMA Halac SB, Richter A. FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG. Tekstil ve Mühendis. 2025;32:237–242.
MLA Halac, Seyit Burhanettin and Alina Richter. “FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG”. Tekstil Ve Mühendis, vol. 32, no. 139, 2025, pp. 237-42, doi:10.7216/teksmuh.1560625.
Vancouver Halac SB, Richter A. FRICTION COEFFICIENT MEASUREMENT OF HYBRID YARNS FROM BAST FIBRES – APPROACH OF A NEW TEST RIG. Tekstil ve Mühendis. 2025;32(139):237-42.