Page 29 - TEXtalks International April/May 2022

28 Groz-Beckert for Spinners revolving flat card in the course of the trials, which When it comes to performance, the unique setting 29

naturally had a positive effect on the yarn quality.
pattern and 560 points per square inch make it easy
Cover Story Well carded is half spun The special tooth geometry of the C20-40-95-CMF to stay clean and guarantee consistent picking up of Cover Story
short fibers and trash. The revolving top TV56 offers
shows a further advantage: Customer trials proved a
high resistance, which increases the already
mentioned production output potential of the
significantly increased service life. The positive results
stand out in comparison to standard cylinder card
revolving flat card. The TV56 is particularly well suited
between Ne20 and Ne45.
quality-oriented cotton spinning mills producing high
Groz-Beckert carding equipment shows perfectly shaped teeth for quality and productivity clothing. This makes it particularly well suited for for cotton applications and blends with yarn counts
quality yarns.
Tough – The new fixed flat series
The revolving flat card is called the heart of the spinning mill. This illustrates the The third tooth geometry innovation is the stationary
flat series. Clever engineered geometry and
immense significance of carding to the end result and the quality of the yarn. All distribution of the teeth result in improved carding
carding products developed and made by Groz-Beckert feature the details which also C20-40-95-CMF – cylinder wire with special tooth shape action and increased fiber control. The tooth
distribution enables controlled opening of the fiber
show advantages beyond quality parameters. Tests in spinning mills underlined that the tufts in the revolving flat card. The controlled fiber
opening relieves the stress on the revolving flat and
C20-40-95-CMF is the perfect solution to achieve
high production rates. The unique design matches has a positive effect on its service life.
customer requirements for high output applications,
as spinners state. Groz-Beckert plans to develop
further CMF cylinder wires with the advantages of the
existing C20-40-95-CMF that will become the ideal
future fit for many more applications.

Consistent – Revolving top TV56
The TV56 revolving top features a special tooth
geometry, too. Most popular with the TV56 revolving
top is its unique setting pattern and 560 points per
square inch. This setting pattern offers various
benefits in production. Spinners observe more
consistence in carding performance while tapping the Stationary flats series – tooth distribution for controlled fiber opening
potential of higher production rates.
The new stationary flat series also has a more
resistant surface, which provides protection from
Spinners have high expectations towards card need for production stops. For revolving flat cards
clothing manufacturers. They expect yarn quality to with an automatic grinding system, no activation of damage caused by incorrect handling. The design of
be maintained at a constant level or even improved the system is required – and also no replacement of the stationary flat decreases the risk of scratches –
while achieving high production output. Furthermore, the grinding stone. This results in minimized and there is also reduced risk of loading. The
they ask for low production costs and minimum maintenance costs for the card clothing and savings Groz-Beckert stationary flats are available in a wide
expenses for maintenance. These requirements are due to reduced downtime of the revolving flat card. range of densities: from 88 and 160 to 270, 330 and
met to the full extent with the C20-40-95-CMF cylinder 440 up to 550 and 660 PPSI.
wire from Groz-Beckert. This card clothing is The card clothing is currently available in Duratech
established in the market, and it has proven itself and Ultra steel grades. Duratech is a micro-alloyed Teeth for success
many times, achieving satisfying results for a wide steel grade and Ultra offers the longest lifetime. Ultra Cylinder wires, revolving tops and stationary flats are
range of customers. is recommended for all modern revolving flat cards the elements for main carding action and fiber
and highest production outputs. separation in the carding zones. In addition to the
Ingenious tooth geometry
The C20-40-95-CMF cylinder wire is characterized in Proven in practice and comparisons actual carding, tops are designed to collect trash,
particular by its special tooth shape and shows its Customer trials with the CMF design showed dust and short fibers. Tooth geometry plays a major
potential when processing cotton for combed and improved yarn quality compared to a standard role in all actions of the carding process – and offers
carded ring yarns. Due to its special and patented Groz-Beckert cylinder wire over time. As a result, benefits beyond quality. Groz-Beckert carding
tooth geometry, the card clothing doesn’t need to be fewer thick and thin places as well as neps in the yarn products are developed in the way – or let’s say in
re-sharpened subsequently. There’s no need for (IPI) were detected. In addition, a higher Neps the shapes – that spinners relax because well carded
complex grinding processes and conclusively no Removal Efficiency (NRE) was achieved on the Revolving top TV56 – setting pattern with 560 points per square inch is half spun.

April/May 2022 April/May 2022