ANALYSIS OF THE IMPERFECTION INDEX (IPI) VALUE OF CARDED YARN PRODUCED BY USING DIFFERENT DIAMETER SPACERS ON THE RING FRAME SPINNING MACHINE. IEJRD - International Multidisciplinary Journal [Internet]. 2021 Apr. 6 [cited 2026 Sep. 30];6(ICMRD21):7. Available from: https://www.iejrd.com/index.php/iejrd/article/view/1751