Application Handbook_Uster_Statistics - Uster Technologies

Contents1 Introduction ................................................................................................................... 32 Content, changes and improvements.......................................................................... 42.1 Distinction between Knitting and Weaving Yarns, Ring-spun .......................................................... 42.2 Distinction between Knitting and Weaving Yarns for OE-rotor yarns ............................................... 42.3 New count distinction for the USTER ® CLASSIMAT ........................................................................ 42.4 New Yarn Quality Characteristics ..................................................................................................... 52.5 New Yarn Measuring equipment ...................................................................................................... 52.6 New Yarn Processing Chapter ......................................................................................................... 62.7 New Raw Material for Roving ........................................................................................................... 62.8 New Raw Materials and Yarn Types ................................................................................................ 62.8.1 New spinning process for the Fiber Processing chapter .................................................................. 62.8.2 New yarn types ................................................................................................................................. 72.8.3 New raw materials and yarn blends ................................................................................................. 73 Testing conditions and sample size ............................................................................ 84 Quality Characteristics of the USTER ® STATISTICS 2013 ....................................... 124.1 Fiber Testing ................................................................................................................................... 124.1.1 Bundle fiber measurement with USTER ® HVI ................................................................................ 124.1.2 Single fiber measurement with USTER ® AFIS ............................................................................... 144.2 Fiber Processing ............................................................................................................................. 164.3 Sliver Testing .................................................................................................................................. 174.4 Roving Testing ................................................................................................................................ 184.5 Yarn Testing ................................................................................................................................... 184.5.1 Yarn testing with the USTER ® TESTER ......................................................................................... 194.5.2 Hairiness length classification with USTER ® ZWEIGLE HL400 ..................................................... 224.5.3 Strength and elongation of yarns with USTER ® TENSORAPID and USTER ® TENSOJET .......... 224.5.4 Classification of yarn faults with USTER ® CLASSIMAT QUANTUM ............................................. 244.5.5 Classification of yarn faults with the USTER ® CLASSIMAT 5 ........................................................ 254.5.6 Yarn twist with USTER ® ZWEIGLE TWIST TESTER ..................................................................... 295 Restrictions .................................................................................................................. 315.1 Restrictions Imposed by the Raw Material ..................................................................................... 315.2 Restrictions Imposed by the Final Product ..................................................................................... 325.3 Restrictions Imposed by the Yarn Design ...................................................................................... 325.4 Missing Correlation between Different Quality Characteristics ...................................................... 325.5 Outliers and Frequent Defects in a Spinning Mill ........................................................................... 335.6 Restrictions in Guarantee Agreements .......................................................................................... 335.7 Reproducibility and Variability of Measurements ........................................................................... 336 Validity.......................................................................................................................... 357 Disclaimer .................................................................................................................... 36USTER ® STATISTICS 1 (36)