The warping of tufted carpets affects the printing height of the digital printing machine head,and then affects the accuracy of the finished carpet hue.In addition,warping also affects the flatness of the finished carpet paving,so that the finished carpet in the process of use buries safety hazards.The effects of three process parameters,shrinkage rate of secondary bottom,width of stenter pressing edge and drying temperature on warping of tufted carpet were studied.The results showed that the warping of tufted carpet could meet the requirement of international national standards for warping index when the improved secondary bottom back was selected,the width of pressing edge was at 3.5 cm,and the drying temperature was at 155~160℃,which solved the warping problem of tufted carpet well.
tufted carpetwarpingtuft pollput forceshrinkage rate of secondary bottomwidth of pressing edgedrying temperature