OraCrepe Next: generation creping - Paper Technology International 2023 - Paper Technology International 2023 - Flipbook - Page 53

OraCrepe Next: generation creping - Paper Technology International 2023

PAPERTECHNOLOGYINTERNATIONAL OraCrepe Next: generation creping - Paper Technology International 2023
“PM16 is a double wire machine that can produce premium
quality toilet paper. Two years ago we decided to change the set-up
of the machine for production needs, so that’s the reason why we
decided to replace the old rigid doctor with a new flexible one, as
we already did on PM17” explains Saverio Grimaldi, Production
Manager at Fosso Ralletta plant.
The devised technical solution stems from the consolidated
experience that Oradoc has gained over the years on OraCrepe™
blade holders for the Yankee area, adding however some technical
improvements aimed at increasing and optimizing the system in
terms of performance, reliability and maintainability.
“The R&D project had as its starting point the technical
characteristic that distinguishes the flexible blade holder: selfprofiling, i.e. the ability to automatically adapt its shape and that of
the blade to the Yankee crown profile - underlines Andrea Orlandini,
Oradoc Operations Manager - With this in mind, the design of the
blade holder and the various components were also reconsidered,
with the aim of increasing their performance both in terms of
operation and maintenance. “
To assess the performance of the new OraCrepe™ Next,
WEPA also decided to install the OraTec™ FX-20 system to monitor
the creping process in a continuous way, with sensors integrated
inside the doctor beam, a solution already adopted in other plants of
the group.
“Two years after installation, we can certainly say that
OraCrepe™ Next has proven to live up to our expectations, solving
some problems of paper passage and difficult maintenance that
we encountered with the previous rigid system” underlines Stefano
Chiocca “No start-up problems and great reliability in following tests,
easier ordinary maintenance and excellent quality of the finished
product…..we are very satisfied”.
The very strict validation process identified 5 KPIs, which
were constantly monitored over time: blade load, blade lifetime,
softness grade, coating and fibres’ build-up issue, all of which
improved significantly or disappeared, as in the case of fibres’ buildup.
“In projects of this level it is important to be able to
collaborate with the right partner to build a business you can be
proud of. We had the opportunity to share this project with WEPA,
who agreed to host the pilot installation of OraCrepe™ Next in their
Fosso Ralletta plant. A special thanks goes to WEPA Italy and to
all the technical team that was involved in this project “concludes
Tomei.
“An innovative, independent system for controlling the blade
load on the edges, a compact and robust design and a different
pressure system complete the new flexible OraCrepe™ Next blade
holder” explains Lorenzo Romei, Oradoc project engineer, who
followed this product from the start “We highlighted the OraCrepe™
features that could be improved. As a result, the new blade holder
design is more stiff and compact, and its independent elements
allow for easier maintenance. The new pressure kit features highquality hose and sleeve spark-proof material, while
the new hose support enables easier replacement
“No start-up problems and great reliability in
and consequent reduction in shutdown time.”
following tests, easier ordinary maintenance and
excellent quality of the finished product…
we are very satisfied”.
Figure 2: Overview of OraCrepe Next installation.
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