Page 59 - TEXtalks October/November 2021

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lifetime by two extra days was calculated. This
spinning mill has a total of 80,000 ring spindles –
1,600 per machine – and produces an average yarn
count of Ne 30. The calculations showed that the mill
could save annually US$ 16,985 by extending the
traveler lifetime by two days. In fact, even a smaller
mill with 35,000 ring spindles would save US$ 7,431
per year on the same basis.
The trial results provide an impressive demonstration
of the significant financial savings a spinning mill Swiss Review
could make by using the hairiness measuring
capabilities of Sensors OH and HL with
7KH \DUQ ERDUGV VKRZ FOHDUO\ KRZ WKH OLJKWHU WUDYHOHU OHG WR PRUH SURWUXGLQJ ILEHUV ORQJHU WKDQ PP Uster Tester 6.
original traveler rather than a lighter type
Outlook – and imagination
The combination of hairiness sensors OH and HL is The Uster Tester 6 measures characteristics such as
the assurance against quality claims and also the evenness, imperfections, hairiness, hairiness length
optimum for yarn engineering. Sensor HL has the classification and yarn count – all at the same time
high sensitivity needed for use in yarn engineering, in and on the same piece of yarn, at test speeds of 400
identifying long protruding fibers likely to cause or 800 m/min. The newly-developed Sensor HL on
pilling, and for machine checks. Uster Tester 6 gives spinning mills have one more
sensor, to react faster, to improve quality or prevent
Sensor HL provides cost savings expensive claims and to tap into savings potential
The purpose of a second trial was to evaluate the in production.
behavior of the ring traveler throughout its life cycle,
using Uster Tester 6. This trial was conducted at an Even more added value comes with the combination
Indian mill producing a 100% viscose Ne 30 ring yarn of data from various instruments through Uster
with an expected traveler lifetime of eight days. In the Quality Expert, hosted in Uster Tester 6 or as a
trial, 10 cops from the same ring spinning frame and standalone version. Full control from fiber to yarn in
spindle were measured with Uster Tester 6 after every Uster Tester 6 as one online system was introduced
doff, spanning 47 different doffs in total.
in 2016. The system illustrates textile mills’ entire
After eight days and 47 doffs, there was no processes with key quality parameters in the right
significant change in either hairiness or S3u values. format at the right time. So this is also a 5th
All other quality data – such as neps and S1+2u – anniversary for mill analyses with meaningful quality
also showed no difference. These results proved that comparisons, as well as for integrated application
the useful life of the traveler could easily be extended. knowledge and focused management reports. All of
them have leveraged even more profound and
The potential financial impact of extending traveler informed decision-making for half a decade.

October/November 2021