UT4_Application Report - Uster Technologies

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THE YARN QUALITY ASSURANCE SYSTEMFig. 2Designation of the foreignfiber and vegetable classesShort count variations (CC) of multiple cut lengths i.e. 2 m to 12 m (Forcomparison: USTER ® QUANTUM 2 – only one cut length)Periodic faults of multiple wavelengthsAll colors of foreign fibers including those with very low contrast or reflectanceEven small Polypropylene defectsAs always the quality data is on the same basis as the established <strong>Uster</strong>laboratory instruments2.5 What is the yarn count range of USTER ® QUANTUM 3and which sensing method will fulfill the quality requirement?The USTER ® QUANTUM 3 yarn count range is extended compared to theUSTER ® QUANTUM 2 and can be used for all staple fiber yarns from Nec 3– Nec 200 / Tex 100 – Tex 2.9. The choice of either an optical or a capacitivesensor gives the widest application range. USTER ® will assist you inthe choice of sensing method best for your quality requirements.2.6 What is new with the USTER ® QUANTUM 3 optical basicclearer?USTER ® QUANTUM 3 comes with complete new sensor technology for allsensors including the optical basic clearing. The new optical sensor is ableto see the complete yarn body and suggest clearing limits for all applications.8 (21) USTER ® QUANTUM 3
THE YARN QUALITY ASSURANCE SYSTEMIn addition to the advanced short thick place detection, the system has newalgorithms for detection of long thick and thin places and also offers thenew advanced count and CC channel to detect short term diameter variationsfrom 2 m to 12 m.Splice clearing is taken to the next level with USTER ® QUANTUM 3 and theclassification (numeric and graphic) is offered with the new optical clearer.As with USTER ® QUANTUM 2, Q Data monitors all quality parameterssuch as CV, Imperfections and classification on the same basis as a thelaboratory.2.7 What is the difference to UQC2 Vegetable Filter?The USTER ® QUANTUM 3 separates foreign matter into three pools. Itprovides online classification of foreign fibers (FD and FL) as before and forthe first time Vegetable Matter Classification. Users can see the amount ofvegetables illustrated as dense areas or from the numeric vegetable classificationmatrix for different cotton varieties.Another innovation is that the system provides a choice of four differentclearing limit possibilities for vegetables. With this the users can choose thelevel of vegetable clearing needed depending on the end use.2.8 What is the advantage of the USTER ® QUANTUM 3 forcore yarns?The main problem with core yarns (with respect to yarn clearing) is the detectionof the missing core. When a core is missing, it causes a marginalchange in diameter however it causes a higher change in mass. The capacitiveclearer has therefore an advantage for this application. The changein mass is proportional to the fineness of the core.The USTER ® QUANTUM 3 has a new capacitive sensor technology whichhas an even better signal ratio and therefore a higher possibility to detectthe missing core. The detection is mainly possible when the change inmass due to the missing core is greater than 5-6%.2.9 What is the benefit of Slub yarn setting in USTER ®QUANTUM 3?The USTER ® QUANTUM 3 clearing concept based on yarn body helps toeasily define the boundaries for clearing disturbing defects in such yarnswhile retaining the slubs produced on purpose.USTER ® QUANTUM 3 9 (21)
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UT4_Application Report - Uster Technologies

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