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Healthy heart - long, productive life

It is said that the Yankee is the heart of a tissue machine. To keep its machine’s heart healthy, Slovenian tissue producer Paloma Hygienic Paper relies on Yankee service from ANDRITZ. There are numerous advantages for Paloma to these on-site services.

Paloma Hygienic Paper is headquartered in Sladki Vrh, Slovenia, close to the Austrian border. Paloma has more than 140 years’ experience in the production and sale of high-quality hygiene papers and today is a leading supplier in the Adriatic region and Central Europe. Annual production is more than 70,000 tonnes in the form of kitchen rolls, paper handkerchiefs, paper napkins, medical towels, and different kinds of toilet paper. In addition to its own brands, Paloma develops and produces private label products for leading European retail chains.

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"The heart of the machine – the Yankee – is of special importance in ensuring quality and maintaining efficient production."

Nataša Iršič Bedenik
Head of R&D and Quality Management
Paloma Hygienic Paper

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"From initial calculations to grinding/coating to optimization, our services substantially extend the useful life of the Yankee."

Wolfgang Herbst
Sales Engineer for Paper Machine Service and Spare Parts, ANDRITZ AG

Nataša Iršič Bedenik is Head of R&D and Quality Management at Paloma. As such, she has a deep understanding of the role that technology plays in developing her company’s varied products. “Most consumers do not think of high-technology when they think of their everyday facial or bath tissues,” Bedenik says. “They only know the softness and quality of the end product in their hands. We in the business think about technology at every step – from the preparation of the raw material, to the production steps on the tissue machine.”

Bedenik knows that key quality and softness parameters are established in the first few production steps. From her perspective, “The heart of the machine – the Yankee – is of special importance in ensuring quality and maintaining efficient production.”

Indeed, the Yankee – that massive rotating pressure vessel – serves a vital transport function (supporting the tissue web through the drying process with no open draws) and is the component on which most of the water in the tissue web is evaporated while adding crepe and structure to the tissue sheet as it is doctored off the Yankee.

Heart-healthy maintenance

Just like the human heart, the many process variables and operations taking place can put the Yankee under considerable stress. Steam pressure, rotational forces, temperature differentials, and line loads are all at work on the Yankee. This combination of mechanical and thermal stresses has unfortunately led to a number of Yankee failures over the years.

In addition, producers are seeking to make greater quantities of tissue at higher quality, increasing the demands on the Yankee. The largest Yankees in tissue production are now 22 ft (6.7 m) in diameter with machine speeds in excess of 7,000 ft/min (2,100 m/min).

Because of its importance, the Yankee requires monitoring and regular maintenance. “We became aware of ANDRITZ’s comprehensive Yankee service,” Bedenik says. “They view the Yankee as part of the complete production process instead of as a stand-alone unit, and we share that view. Their service, which combines specific knowledge about the Yankee in the context of the entire production line, is what led us to select ANDRITZ as our strategic service partner.”

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Nataša Iršič Bedenik is Head of R&D and Quality Management at Paloma. As such, she has a deep understanding of the role that technology plays in developing her company’s varied products. “Most consumers do not think of high-technology when they think of their everyday facial or bath tissues,” Bedenik says. “They only know the softness and quality of the end product in their hands. We in the business think about technology at every step – from the preparation of the raw material, to the production steps on the tissue machine.”

Bedenik knows that key quality and softness parameters are established in the first few production steps. From her perspective, “The heart of the machine – the Yankee – is of special importance in ensuring quality and maintaining efficient production.”

Indeed, the Yankee – that massive rotating pressure vessel – serves a vital transport function (supporting the tissue web through the drying process with no open draws) and is the component on which most of the water in the tissue web is evaporated while adding crepe and structure to the tissue sheet as it is doctored off the Yankee.

Heart-healthy maintenance

Just like the human heart, the many process variables and operations taking place can put the Yankee under considerable stress. Steam pressure, rotational forces, temperature differentials, and line loads are all at work on the Yankee. This combination of mechanical and thermal stresses has unfortunately led to a number of Yankee failures over the years.

In addition, producers are seeking to make greater quantities of tissue at higher quality, increasing the demands on the Yankee. The largest Yankees in tissue production are now 22 ft (6.7 m) in diameter with machine speeds in excess of 7,000 ft/min (2,100 m/min).

Because of its importance, the Yankee requires monitoring and regular maintenance. “We became aware of ANDRITZ’s comprehensive Yankee service,” Bedenik says. “They view the Yankee as part of the complete production process instead of as a stand-alone unit, and we share that view. Their service, which combines specific knowledge about the Yankee in the context of the entire production line, is what led us to select ANDRITZ as our strategic service partner.”

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"We really appreciate the competence of ANDRITZ and their willingness to transfer their knowledge to our people"

ANDRITZ Yankee Service
Mechanical on-site services
grinding, coating, leakage repairs, nip calibration, doctor blade adjustment, etc.
Consultation drying system, heat recovery, energy savings, runnability, etc.
Troubleshooting surface inspection, steam and condensate, automation, dewatering, chemicals, etc.
Inspections and measurements
pressure testing, OTR, finite element analysis, acoustic measurement for crack detection, etc.