Fast and accurate: quality assured for filament yarns

by+Flora+Zhao

The amazing diversity of technical textiles applications is matched by the wide variety of quality characteristics needed in the raw material used – so filament yarn producers know they must work to the most stringent specifications and standards. Quality failings， especially in the critical parameter of yarn evenness， can be expensive， but the USTER？ TESTER 6-C800 provides fast， accurate testing to the tightest tolerances， protecting filament producers against customer complaints and claims.

Raw materials for technical textiles cover a wide range of end-uses and performance requirements. Viscose fibers， for instance， are found in lightweight blouses as well as in wire cording and high-speed car tires. Polyester， common in low-price clothing， is also transformed in special high-tech versions， for sophisticated sportswear and outdoor clothing. Countless other examples of technical applications for filament yarns span sectors such as medical， industrial， transport， engineering and protective clothing.

Despite this variety of products， there is one fundamental requirement which is common to all： the absolute need for yarn evenness， measured to close tolerances， to ensure that the functional and aesthetic properties of the finished article achieve the high quality standards that customers demand.

Reliable test results

Efficient testing routines and the right testing equipment are the key to avoiding customer dissatisfaction， quality claims and the loss of future business for filament producers.

Evenness testing has to combine reliability， accuracy and speed. The USTER？ TESTER 6-C800 is specially designed for filament yarn testing， to meet these criteria perfectly. At its heart is the new Capacitive Sensor， providing more accurate and reliable test results than ever before.

Typically， filament yarns show a CVm value around 1， so that even small deviations in evenness are likely to cause noticeable defects in the fabric. The increasing complexity of applications and performance standards – with fabrics needing to protect against water， wind， cold， heat， and even bullets – means that evenness is an absolute requirement.

For this vital parameter， spinners have for decades been depending on the USTER CVm value， now recognized as the defining global standard for evenness.

The USTER？ TESTER 6-C800 combines reliability with top speed operation. All models operate at the test speed of 800 m/min. Running on the automatic setting， the high sample throughput rate gives even better detection of quality exceptions. The result is lower labor costs and improved control of quality for the business.

Expertise inside

Built-in knowledge now comes as standard for USTER？ instruments， along with the renowned Swiss accuracy. The sophisticated sensor technology in the USTER？ TESTER 6-C800 is rooted in continuous R&D aimed at higher performance and extended applications – echoing progress in the technical textiles yarns themselves.