Page 27 - TEXtalks. July- August 2023

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clearing curves to their exact specifications. signal to remove those long faults from the package
PRISMA's software offers significant advantages over is sent to the winding machine.
other systems in terms of speed, accuracy and
flexibility, allowing users to get the best results in any This bobbin can then be processed further through
situation. Its advanced features provides precise the second-level yarn quality process. With the higher Cover Story
control over the clearing process. efficiency and the possibility of a smooth
• Classification of every deviation in absolute length second-grade process, a boost in profitability is
• Informs users about the actual fault deviation at given.
different lengths and limits
• Provides data about the fault distribution and yarn The innovative textile alarm – Length limit alarm – is
structure even with an open setting now available for the matrix of OffCount, SFID, and
• Longest observation lengths on the market for the optionally for OffColor. The length limit curve can be
following fault types and matrices: adjusted fully to meet with the spinner’s requirements
- OffCount (Deviations in Count) up to 50 m (see Graph-2, next Page).
- SFI/D (Hairiness and CV) up to 80 m
- OffColor (Deviations in Color) up to 50 m PRISMA Bobbin startup alarm
• Less: Yarn waste
• Higher: Production efficiency
Benefits of the extended observation lengths • Better: Material process monitoring
The extended observation length is the perfect
solution for achieving higher-quality yarn with fewer The Bobbin startup alarm is the perfect solution for
cuts. PRISMA removes long faults in the yarn in a any spinning mill looking to increase its profitability.
single cut and accurately identifies them, providing This textile alarm detects bobbins with the wrong
the most complete picture of the yarn structure in the count, and optionally with the wrong color, within the
process. Thanks to its extended observation length, first wound 11 to 20m, providing the fastest detection
spinning mills enjoy improved yarn quality, fewer
splice cycles, and fewer cuts overall - all while saving of faulty bobbins on the market. The Bobbin startup
time and money. alarm will reduce hard waste and improve production
efficiency, while also providing the ability to classify
The matrix comes with multiple set points to provide cuts and monitor material processes more efficiently.
the highest flexibility in setting the clearing curve to
ensure the required fabric appearance. The Bobbin startup alarm is preferably used on
winding machines with the round magazine to
The shorter observation lengths of conventional immediately alarm bobbins with different yarn
systems cause cuts immediately when the faults properties. PRISMA offers innovative ways to reduce
exceed the set curve. Slicing long faults into pieces waste and further enhance the production process
will significantly downgrade the winding efficiency as irrespective of the yarn type, the raw material
well as cause more yarn waste. In addition, the fault processed, and process-related differences. The
is not assigned in its absolute length, which leads to Bobbin startup alarm is automatically active after
a limited overview of the yarn. A missed opportunity every bobbin change for the first 20 meters of
for spinning process optimization (see Graph-1, next wound yarn (see Graph-3, next Page).
Page).
PRISMA centralized alarm management
PRISMA Length limit alarm An effective way to manage OffStandard bobbins is
• Better: yarn quality, raw material utilization, now provided. PRISMA’s centralized alarm
second-grade process, and process optimization in management shows all settings of repetitive yarn
yarn quality control faults at a glance. This simplifies alarm management
and enables the user to set all allowed cut repetitions
The Length limit alarm maximizes winding machine per bobbin at one central point. Furthermore, greater
and production efficiency with fewer splices and less control over the production process is provided. This
hard waste. Faults are detected with the “red” centralized alarm management view is available for
clearing curve in the green clearing field until their every fault type and provides the perfect overview to
length touches the “purple” length limit curve. This manage OffStandard bobbins effectively (see
triggers immediately the Length Limit Alarm and a Graph-4, next Page).

July/August 2023