110 Tekstilec, 2018, 62(2), 110-123 DOI: 10.14502/Tekstilec2019.62.110-123 Corresponding author/Korespondenčni avtor: Sukhvir Singh E-mail: sukh7911@gmail.com 1 Introduction At the fnisher drawframe section in a combed ring spinning preparatory, hundreds of storage cans are used for sliver storage. Te main component of a sliver storage container, which is also termed as the heart of the storage can, is its spring. Te spring stifness of these storage cans decreases with Sukhvir Singh 1 , Niranjan Bhowmick 1 , Anand Vaz 2 1 Dr. B. R. Ambedkar National Institute of Technology, Department of Textile Technology, Jalandhar-144011, Punjab, India 2 Dr. B. R. Ambedkar National Institute of Technology, Department of Mechanical Engineering, Jalandhar-144011, Punjab, India Impact of Finisher Drawframe Storage Variables on Combed Yarn Quality Vpliv dejavnikov shranjevanja raztezanega pramena na kakovost česane preje Original Scientifc Article/Izvirni znanstveni članek Received/Prispelo 12-2018 • Accepted/Sprejeto 04-2019 Abstract The cotton ring spinning preparatory is confronting the serious issue of combed sliver handling during sliv- er storage and processing. Combed sliver is more liable to stretching and failure due to low interfibre cohe- sion during the processing on a drawframe and speedframe. The combed sliver quality deteriorates if stored in older storage cans of decreased spring stiffness due to prolonged fatigue loading. The bottom position combed sliver processed from older cans results in sliver stretching and sometimes failures at speedframe creel due to high inter-sliver coils adhesion with adjacent sliver coils. The study deals with investigating the influence of the sliver coils position, storage can-spring stiffness and finisher drawframe delivery speed on combed cotton yarn unevenness, imperfections, breaking tenacity, breaking elongation and S3 hairiness. The experimental work and statistical analysis suggest that the sliver coils position and can-spring stiffness play a vital role in deciding combed yarn quality characteristics. Keywords: combed sliver, can-spring stiffness, coils position, storage time Izvleček Pri pripravi na predenje prstanske bombažne preje se soočamo s pomembnimi problemi, povezanimi z ravnanjem s česanim pramenom med skladiščenjem in predenjem. Zaradi slabe kohezije med vlakni v česanem pramenu hitro pride do neželenih nekontroliranih raztegov, predpreja in preja postaneta bolj neenakomerni. Kakovost česa- nega pramena se poslabša, če ga skladiščimo v starejših loncih z zmanjšano togostjo vzmeti, ki je posledica pre- utrujenosti materiala. Predelava spodnjih plasti česanega pramena iz starejših loncev lahko vodi do neželenih raz- tegov in občasno pretrgov pramena na krilniku zaradi povečanega medsebojnega sprijemanja sosednjih ovojev. Študija se ukvarja s proučevanjem vpliva položaja ovojev, togostjo vzmeti v loncu in odvajalno hitrostjo raztezal- nika na neenakomernost česane bombažne preje, količino napak, pretržno trdnost, pretržni raztezek in kosmatost preje. Eksperimentalno delo in statistična analiza sta pokazala, da položaj ovojev pramena in togosti vzmeti lon- cev močno vpliva na končno kakovost bombažne česane preje. Ključne besede: česani pramen, togost vzmeti v loncu, položaj ovojev, čas shranjevanja