TY  - JOUR
T1  - ANALYSIS OF HARDNESS VARIATIONS IN RADIAL AND LONGITUDINAL DIRECTION OF BOBBINS IN STEP PRECISION WINDING
AU  - Çelik, Özge
AU  - Eren, Recep
PY  - 2019
DA  - March
Y2  - 2019
DO  - 10.32710/tekstilvekonfeksiyon.464713
JF  - Textile and Apparel
PB  - Ege University
WT  - DergiPark
SN  - 1300-3356
SP  - 30
EP  - 38
VL  - 29
IS  - 1
LA  - en
AB  - Stepprecision winding is a widely used bobbin winding method in industry,especially for dyeing bobbins. It is important to adjust winding parameters inan optimum way to obtain optimum hardness variation and best dyeing performance.Main winding parameters are winding pressure, crossing angle and yarn tension.This paper presents a research investigating the effect of main windingparameters on hardness distribution in radial and longitudinal directions ofbobbins wound with step precision winding. Bobbins are produced from Ne 30/1 and Ne 10/1cotton yarns. Bobbin hardness is measured by a new instrument called UNITORQ,which enables the measurement of relative bobbin hardness in radial andlongitudinal directions with small increments of distance. It is found thatcrossing angle affects mainly longitudinal hardness variation while radialhardness variation is determined and affected in a large variation interval bywinding tension. Winding pressure is seen to have no significant effect on windinghardness distribution in both radial and longitudinal directions but itdetermines bobbin hardness level together with winding tension and crossingangle.
KW  - Winding density
KW  - winding hardness
KW  - hardness distribution
KW  - step precision winding
KW  - winding parameters
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UR  - https://doi.org/10.32710/tekstilvekonfeksiyon.464713
L1  - https://dergipark.org.tr/en/download/article-file/683580
ER  -