Page 58 - TEXtalks October/November 2021
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The HL Sensor integrated in
Uster Tester 6 enhances quality
and profitability
Hairiness values: why the
full picture is vital
Spinners can now obtain full details of yarn standard – and celebrating its 5th anniversary. It
hairiness values, thanks to the Optical enables complete evaluation of hairiness, thanks to
Swiss Review Uster Tester 6. Hairiness is a vital parameter, classification in seven length classes. Its measuring
the Sensor HL for Hairiness Length Classification.
Hairiness (OH) and Hairiness Length
Classification (HL) sensors available with
Sensor HL provides S3u, S1+2u values and
principle focuses on the real length of the protruding
and mills can use these insights to optimize
fibers, for the ultimate in useful data. Combined with
spinning operations for consistent quality
the established Sensor OH, spinners can manage
and profit. For example, they can choose
the best possible application of ring
every hairiness testing need, for yarn engineering,
travelers to achieve the right balance
between spindle speed, energy
profits.
consumption and yarn quality. maintenance optimization, consistent quality and
Sensor HL guides efficiency
In one practical example, an Indian spinner wanted to
test the option to use a lighter traveler to increase the
spindle speed, thus giving higher production and
less energy consumption.
Producing a 100% combed cotton Ne 40 ring yarn,
the mill ran trials comparing its normal traveler with
one of a lighter weight. The test results showed that
the changed traveler weight had no influence on
evenness or neps. The standard hairiness values
showed a minimal increase of 5%. But it did have a
huge effect on the longer protruding fibers. The
lighter traveler showed an increase of 22% for S3u
longer fibers.
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Only the measurements from Sensor HL allowed the
This unique advantage brought by the Uster sensor spinning mill to prevent an expensive claim –
combination allowed two spinning mills in India to because the influence of the lighter traveler was only
select exactly the correct traveler types and usage on the long protruding fibers, and therefore not
profiles to target energy reductions and profit visible with other sensors. This demonstrates the
increases – based on the critical hairiness quality possibilities of Sensor HL in optimization of ring
data provided. traveler selection, when seeking benefits in spindle
The Uster Tester 6 is the undisputed heart of the speed and energy consumption. In this case, the
textile laboratory, acknowledged as the global results showed that it would be better to stay with the
October/November 2021
