Abstract
In this work, the factorial design technique was used to investigate the influence of some loom parameter on the yarn stops during weaving on air jet loom. These parameter are the timing of harnesses crossing, machine speed and position of back beam. The statistical analysis showed that the warp and weft stops are signficantly affected by these parameters. The interaction between these parameter had a large influence on the yarn stops. The analysis of yarn stops was done on picanol and Tsudokoma air jet looms for comparison.
Highlights
In th is work the factorial design techn i que was used to invest i gate the influence of some loom parameters on the yarn s tops during weaving on ail: jet loom
The statis tical an~lysis showed that the warp end weft stop s are significantly a ff ected by these parameters. The interaction between these parameters had a large influence on the yarn stops
The yarn strength reduced rmarkably due to abrasion, the matttn \..hich affected the number of stope on the weaving machine
Summary
The experimental plan wa s ma d e according t o the f actorial de s ign t echnique to investigate the e f f ect o f machine speed, position of back beam and harnesses crossing angle on the · number of weft and warp stops. The contour lines of warp -stops on PAT ai r jet loom,shown 1n Figure(2) ,show that the warp s tops is largly affected by the machine speed, position of back be am and timing of harnesses crossing. At high machine speed the weft stops went down when the pOSi t ion of back beam was raised to 85 This is attributed to the l e ss warp entanglment during shedding as a result of the diffe rence in warp tens,lon between the top and bottom shed positions[6).
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