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Voith - Stories from the world of paper
A Dirndl made entirely of paper
The Design students Ramona Summerer (l.) and Julia Hopper with their Dirndl
In Bavaria, the traditional Dirndl dress is not an uncommon sight. Yet if you take a closer look at the Dirndl on display in the Gmund paper mill’s exhibition hall, you will notice that this garment, meticulously created down to the finest detail, is something unique. The Dirndl is not made from cotton or linen but consists entirely of paper, or to be more precise, of superfine premium paper from Büttenpapierfabrik Gmund.
The paper Dirndl was tailored by Ramona Summerer and Julia Hopper, who are both studying “Visual & Corporate Communication” at the Academy for Fashion and Design in Munich. They collaborated with the Gmund paper mill as part of their “Communication with Paper” design project. After they had visited the mill and seen the papers for the first time, they were inspired by the rich colors and shimmering finishes to create a Dirndl from paper.
The two students chose to make their Dirndl using paper from the "Gmund Reaction” collection. For certain parts of the dress they also made use of “Gmund Treasury” paper, a brilliantly shimmering paper that has become famous following its appearance at the Oscars ceremony in Los Angeles. Official Academy Awards® designer Marc Friedland used the high-quality paper from Gmund to produce the 24 hand-made envelopes containing the names of the Oscar winners. And the two students used the very same Gmund Treasury paper for the apron and trim. “We had the greatest fun creating these exact details,” they recall. For the apron they cut the Gmund Treasury into strips and interlaced them. To create an organic form they arranged the top part of the apron into folds. The trim, using the “little frog mouths” technique, was sewn together by hand.
“The most difficult thing was to join the sheets of paper to one another,” says Ramona Summerer. “Gluing them didn’t work because of the special paper coatings.” So alternatives had to be found. From adhesive tape to drawing pins and photo mounting corners, anything that could hold paper together was used. Bit by bit, a genuine dressmaking masterpiece was created. “Finally, the Dirndl was fixed to a dressmaker’s dummy, and that is where it is going to stay,” report the two students. The roughly 50 hours of work it took to craft this world premiere in paper were well worth it. The Gmund Dirndl is scarcely distinguishable from its fabric equivalents. Unfortunately it’s not possible to wear this beautiful garment. But you can admire it, because it will be on display at the Paper World exhibition at Büttenpapierfabrik in Gmund until the end of the year.
Sources:
http://de.gmund.com/content/de/das-dirndl-aus-papier
NipSense2: New system from Voith facilitates static real-time measurement in the roll nip
With NipSense2, Voith has developed a new analytic system through which the invisible nip conditions of two rolls can be visualized and measured in real time. The system performs corrective calculations of the nip profile and thus contributes to a substantial improvement of the reliability and quality of the paper manufacturing process.
NipSense2 gives a clear view of the otherwise invisible contact point of two rolls. Through very precise sensors that are placed between two rolls, the nip width can be determined with a high degree of measurement accuracy. The sensors transmit data wirelessly to the analytical software. The closing process of the press rolls and every change in nip width becomes visible on the screen. The entire measurement process can be stored on video and later replayed. An expert report with crown recommendations completes the service.
NipSense2 is able to measure all roll types, regardless of roll length and diameter. The new measurement technology is able to measure several nips at the same time and so discover previously unknown interdependencies. The nip profile can be optimized by using NipSense2. Thanks to more uniform paper and moisture profiles, the profile optimizations lead to a longer service life of the roll covers and, thanks to reduced errors in the roll hydraulics, to a more efficient paper manufacturing process.
Further information is available on the Voith website at www.voith.com/paper. Voith Paper is also on Twitter and YouTube.
Voith Paper is a division of the Voith Group and the leading partner to and pioneer in the paper industry. Through constant innovations, Voith Paper is optimizing the paper manufacturing process, focusing on developing resource-saving products to reduce the use of energy, water, and fibers. Furthermore, Voith Paper offers a broad service portfolio for all sections of the paper manufacturing process.
Voith sets standards in the markets energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, Voith employs more than 43,000 people, generates € 5.7 billion in sales, operates in about 50 countries around the world and is today one of the biggest family-owned companies in Europe.
Stora Enso: New DuoDry CC drying concept from Voith impresses in operation
DuoDry CC, the innovative drying concept from Voith, is for the first time successfully in operation. The DuoDry CC is delivered and installed in the Narew PM 5 at Stora Enso in Ostroleka, Poland. The concept impresses with its reduced curl formation caused by the drying process and lowers energy demand by increased runability of the paper machine.
CC stands for curl control and designates the latest technology for reducing curl in single-tier dryer sections, which have become especially popular on the market since the speeds of paper machines have increased. The advantage of single-tier design when compared to the two-tiered design is that the machine achieves improved runability. However, a disadvantage of the conventional single-tier design is that the paper tends to curl due to the one-sided drying.
DuoDry CC solves this problem with a smart concept that is as effective as it is simple – a vertically inverted single-tier dryer group that serves as the last group. Normally the paper web is sprayed with water on one side to fight curl. The web is dried again afterward through additional energy input. With DuoDry CC, by contrast, the thermal energy already required for drying the paper web is utilized by being fed into the inverted dryer group from the other side. Thus no additional energy is required for reducing curl. Use of this technology reduces the operating costs of the paper machine. The components used, such as web stabilizers and dryer cylinders, are products that have long been proven, which ensures the reliability of the system in operation.
Janne Myllykangas, PM area manager at Stora Enso, confirmed after the project was finalized: “The collaboration with Voith was very good. The trust formed during the negotiations has been confirmed in the execution. The decision in favor of the DuoDry CC drying system has also proved to be the right one. We are very satisfied with the performance of DuoDry CC in operation.”
The Narew PM 5 from Voith is equipped with a SpeedSizer and produces 455,000 metric tons of testliner and corrugating medium per year on a wire width of 8,600 mm.
Further information is available on the Voith website at www.voith.com/paper. Voith Paper is also on Twitter and YouTube.
Voith Paper is a division of the Voith Group and the leading partner to and pioneer in the paper industry. Through constant innovations, Voith Paper is optimizing the paper manufacturing process, focusing on developing resource-saving products to reduce the use of energy, water, and fibers. Furthermore, Voith Paper offers a broad service portfolio for all sections of the paper manufacturing process.
Voith sets standards in the markets energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, Voith employs more than 43,000 people, generates € 5.7 billion in sales, operates in about 50 countries around the world and is today one of the biggest family-owned companies in Europe.
Revealing the invisible to increase quality
Roll cover with integrated measurement system impresses paper manufacturer
Two innovative technologies are allowing Propapier in Eisenhüttenstadt, Germany, to optimize their sizer and roll covers and at the same time improve paper quality. As a result, the cost and effort for future maintenance work could also be substantially reduced.
For four years now, Propapier has been producing 70 – 115 g/m² corrugated base paper on their PM 2 at the Eisenhüttenstadt mill on the River Oder. The production and technology management team decided last year to upgrade their PM 2 sizer rolls, which were due to be re-covered. The rolls were fitted with an eVen rubber polymer cover and an integrated NipVision high-tech measuring system, both of which are Voith products. The papermaker wanted to achieve three goals through this investment: more uniform pressure conditions in the roll and rod nips, lower temperatures during size application and longer regrinding intervals for the roll covers. Achieving all these goals would allow the mill to improve the surface quality of the paper and at the same time significantly reduce maintenance costs for the rolls. Evaluating the first three months of operation confirms that all three goals have indeed been reached.
Real-time measuring system in the roll nip. NipVision consists of glass fibers inside the roll cover and an external electronic unit. The glass fibers function as sensors, recording dynamic pressure and temperature conditions in the roll cover. The measured data is transmitted offline to the electronic unit, allowing the machine crew to continuously check the actual conditions in the roll cover and nip in real time. If temperatures rise too steeply or pressure conditions deviate too much over the web width, operators can intervene and make the necessary corrections. This prevents damage to the roll cover from too high temperature and at the same time improves paper quality.
Even before Propapier opted to purchase the covers with built-in sensors, Voith had already acquired very good experience with NipVision in other paper mills and applications in the press, size press and calender. The opportunitiy in Eisenhüttenstadt was for NipVision to visualize not only the sizer nip but also the metering rod pressure on both rolls at the same time. The specialists from Propapier and Voith were therefore excited to see the initial results – and they were not disappointed: Right away, the new roll covers produced an impressive performance in operation.
The eVen covers consist of a rubber polymer matrix which is specially developed for use on size and film presses. Christian Schulze, Application Finishing, expressed his enthusiasm after the first 16 weeks of operation: “We have now been running the eVenSize roll covers for twice as long as before and there is still no need to change them. This means that we have so far already saved the expense of the special transport for regrinding, the costs for the regrinding itself and downtime for the unit.”
The upgraded rolls from Eisenhüttenstadt were brought to the Voith Service Center in Laakirchen for the first time after 20 weeks of continuous service. Measurements taken there confirmed that eVen is more rugged than conventional sizer covers. During the roll service, the cover roughness was measured and surface quality analyzed. Both values were excellent, given that the covers had been in use two and a half times longer than the previous product. In addition, the amount of material removed in the regrinding process could be kept to a minimum, so that from today’s perspective there are good grounds to be very optimistic about the expected total service life of the covers.
The NipVision measuring and sensor system also performed very well in Propapier’s coating unit. Production Manager Stefan Jürgen confirms that the benefits pay off: “The temperature monitoring in both the roll covers enable us to even out the normal fluctuations. This not only preserves the roll cover but also improves the application of the size. Using NipVision, we are able to keep the pressure conditions largely stable. For us as papermakers, NipVision has literally made a vision reality: It has made the invisible visible!”//
The company – Propapier PM 2 GmbH
Propapier PM 2 GmbH is a Progroup AG company. Questioning established methods, developing fundamentally new approaches and bringing pioneering concepts to market. That is what Progroup AG stands for. The successful evolution of the company is based on technology leadership, network management and supply chain strategy. With its two paper mills, seven corrugated sheetboard plants and several service companies, Progroup manufactures corrugated base paper and corrugated sheetboard. In 2014 the company with 880 employees achieved sales of approx. 650 million euros and is one of the industry’s top 5 companies in Central Europe. The Next Generation branded products offer lower raw material consumption with increased performance and have become the epitome of sustainable thinking and economic efficiency in the industry.
New stock preparation from Voith in operation at N. R. Agarwal Industries Ltd.
A new stock preparation system was put into operation in June at the Indian paper manufacturer N. R. Agarwal Industries Ltd. in Sarigam, in the federal state of Gujarat. The company established a complete, new paper mill in Sarigam for graphic paper grades so as to meet the rising demand for graphic paper in the Indian market. The annual production capacity of the new mill is 100,000 metric tons of paper.
An IntensaDrum SD 35 pulping drum is part of the stock preparation system at Agarwal Industries. The IntensaDrum SD 35 is a part of the BlueLine equipment family and the first one of this type that has been in operation in India. Shortly after the start-up, the Voith IntensaDrum impressed with very good results, as the Managing Director R N Agarwal confirms: “It is a very good machine. The rejects are very clean and free of fiber.”
The stock preparation at N. R. Agarwal Industries Ltd. is a two-stage deinking and flotation system. Voith’s decades of experience with stock preparation systems was decisive for N. R. Agarwal Industries Ltd. when choosing a supplier. The low maintenance and energy costs of IntensaDrum SD 35 pulping drum also appealed. Furthermore, the IntensaDrum SD 35 is simple and robust in operation and its pulping performance is very good. Voith supplied the entire stock preparation system. The delivery included the automation technology, engineering, assembly and start-up.
N. R. Agarwal Industries Ltd. was founded by N R Agarwal, the father of today’s Managing Director, in 1993. The company produces various types of boards, newsprints and graphic paper at Vapi in India. The company has around 1,200 employees.
Further information is available on the Voith website at www.voith.com/paper. Voith Paper is also on Twitter and YouTube.
Voith Paper is a division of the Voith Group and the leading partner to and pioneer in the paper industry. Through constant innovations, Voith Paper is optimizing the paper manufacturing process, focusing on developing resource-saving products to reduce the use of energy, water, and fibers. Furthermore, Voith Paper offers a broad service portfolio for all sections of the paper manufacturing process.
Voith sets standards in the markets energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, Voith employs more than 43,000 people, generates € 5.7 billion in sales, operates in about 50 countries around the world and is today one of the biggest family-owned companies in Europe.
New screw press from Voith: high dewatering performance and low energy consumption, with minimum maintenance required
With the new InfiltraScrewpress, Voith is launching another product to join its BlueLine range of stock preparation machines, that impresses with its high dewatering performance, improved energy efficiency and low maintenance outlay. As part of Voith’s Compact Dispersion System it has been successfully in operation at a number of paper manufacturing sites.
The Compact Dispersion System by Voith is a dispersion system featuring outstanding performance in the reduction of stickies and spot contamination. Further benefits are low energy consumption and space requirements, as well as high system availability. The Compact Dispersion System by Voith includes the InfiltraScrewpress, the InfibraHeater quick heating screw and the InfibraDisp disperser, which has also been newly developed. These machines also belong to the BlueLine product range.
The InfiltraScrewpress boasts a design that is more than ten times stiffer than comparable machines, complementing its low center of gravity. This ensures the machine’s very tight tolerances over the entire operation cycle, allowing high dewatering performance and minimal fiber loss to be achieved. It is equipped with a double-thread press screw. The fiber suspension is fed into the screw press at a stock consistency of 8 – 12 % and is then transported by the press screw in axial direction. The suspension is thickened by the constricting volumes between press screw and screen baskets. Excess water is discharged via the screen baskets. The filtrate can thus be pressed out of the suspension and discharged via the screen baskets of the new SplitScreen screen elements. The remaining pulp is conveyed at a stock consistency of around 30% via the outlet of the screw press to the InfibraHeater quick heating screw.
The double-thread design of the screw press provides a continuous stock discharge to the InfibraDisp disperser, resulting in a reduction of the energy consumption in downstream processes. Together with a special protective coating, a further positive effect of the even stock flow is an extended service life and low maintenance outlay.
The SplitScreen screen elements feature improved dewatering performance and markedly greater ease of maintenance. Its special design allows quick replacement of the split screen plates without time-consuming disassembly of the entire screen element. The SplitScreen screen element is used in the new screw press, but can also be installed into existing screw presses as part of a rebuild package.
Voith’s BlueLine range for the stock preparation impresses with its low consumption of energy, fibers and water.
Further information is available on the Voith website at www.voith.com/paper. Voith Paper is also on Twitter and YouTube.
Voith Paper is a division of the Voith Group and the leading partner to and pioneer in the paper industry. Through constant innovations, Voith Paper is optimizing the paper manufacturing process, focusing on developing resource-saving products to reduce the use of energy, water, and fibers. Furthermore, Voith Paper offers a broad service portfolio for all sections of the paper manufacturing process.
Voith sets standards in the markets energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, Voith employs more than 43,000 people, generates € 5.7 billion in sales, operates in about 50 countries around the world and is today one of the biggest family-owned companies in Europe.
Voith upgrades disk filters at WEIG-Karton – significantly improved filtrate values after rebuild
Moritz J. WEIG GmbH & Co. KG in Mayen, Germany, chose Voith for the rebuild of its third-party disk filter. After a successful startup following the rebuild, significant improvements in filtrate values were recorded, while at the same time maintenance costs are now demonstrably lower. This was achieved by integrating the modern Voith disk filter technology, which includes BaglessPlus disk filter sectors and a new filtrate valve.
BaglessPlus disk filter sectors made from corrugated stainless steel provide increased capacity by up to 15% to 20%, while at the same time improve filtrate quality. Clear filtrate and super-clear filtrate quality have significantly exceeded customer expectations. Initial measurements recorded 180 ppm in the clear filtrate and 60 ppm in the super-clear filtrate. Since the high filtrate quality will remain unchanged during the entire lifecycle of the BaglessPlus sectors, ranging from 10 to 20 years, large quantities of fresh water can be saved.Moreover, BaglessPlus disk filter sectors are maintenance free, with holes in filter bags no longer being an issue.
The new filtrate valve ensures a consistently high vacuum and further ensures the high filtrate quality. The rebuild switched the mounting by plain bearing to reliable roller bearing with the new central shaft. In addition, the disk filter was equipped with new knock-off and cleaning spray pipes featuring patented nozzles.
The upgraded disk filter now replaces four drum thickeners, which had become susceptible to failure due to high screen wear.
WEIG-Karton’s trust in Voith is based on many years of collaboration. Two years ago another third-party disk filter had already been successfully rebuilt to BaglessPlus sectors and HiCon. Thanks to the conversion to HiCon, this disk filter is now being operated at an intake stock consistency of up to 2%.
The Voith disk filter technology has been developed for BlueLine, a product and component range designed to keep energy, fiber and water consumption in stock preparation as low as possible. Voith disk filter components can be installed in machines from all manufacturers.
Moritz J. WEIG GmbH & Co. KG is among Europe’s leading manufacturers of recycled board. At its main location in Mayen, approximately
620,000 metric tons of board from recovered paper is produced annually.
Further information is available on the Voith website at
www.voith.com/paper. Voith Paper is also on Twitter and YouTube.
Voith Paper is a division of the Voith Group and the leading partner to and pioneer in the paper industry. Through constant innovations, Voith Paper is optimizing the paper manufacturing process, focusing on developing resource-saving products to reduce the use of energy, water, and fibers. Furthermore, Voith Paper offers a broad service portfolio for all sections of the paper manufacturing process.
Voith sets standards in the markets energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, Voith employs more than 43,000 people, generates € 5.7 billion in sales, operates in about 50 countries around the world and is today one of the biggest family-owned companies in Europe.
Voith upgrades deliver energy and machinery efficiency to Newark America in Fitchburg, Massachusetts
Voith has completed an upgrade of the stock preparation at Newark Recycled Paperboard Solutions (Newark America) in Fitchburg, Massachusetts, reducing production cost and boosting efficiency in the process. As a result of the upgrades, the facility can now use OCC (Old Corrugated Containers) instead of less contaminated recycled board as a raw material for the production of high quality linerboard. In addition, the upgrade ensures minimal fiber loss during the production process.
“We are very pleased with the upgrade at our Fitchburg facility”, said Barry Jensen, Vice President Newark Recycled Paperboard Solutions. “The upgrade process went according to plan and the startup was the smoothest we have encountered, which is even more impressive considering complexity of the project. Within a few hours of pressing the start button, the plant was supplying the machine with quality fiber at design capacity. The upgrade project has met all the quality objectives, and power consumption is lower than expected.”
The main upgrade consisted of improving the current pulper detrashing loop using Voith’s IntensaMaxx. IntensaMaXX prevents tail formation and spinning so that even content with high levels of contaminant can be easily processed. Another advantage of IntensaMaXX is its low energy consumption. IntensaMaXX can be used in continuous low consistency (LC) pulping with recovered paper grades containing contaminants or in high consistency (HC) pulping as a dumping machine after the batch HC pulper.
In addition, Newark Fitchburg upgraded a multi-stage fine cleaning system with Voith’s unique HCL5C cleaner with HW and LW removal combination, while adding a three stage fine screening upgrade with the C-bar screen basket. These upgrades included a new third stage MultiMizer with optimum slots configuration for a fiber savings final stage screening concept.
The HCL5C technology is a multi-stage system for cleaning fiber suspensions. It removes heavy weight and light weight contaminants in the stock preparation and approach flow systems. The C-bar screen basket is used in stock preparation and approach flow and can be used for increasing the capacity of existing pressure screens. It has a large open screening area with high slot width precision, providing up to 20% more capacity than conventional screen baskets. The MultiMizer improves the overall system performance and provides cost savings by reducing the amount of flakes in the reject stream of the fine slotted screening system.
Newark, originally The Newark Group, was founded in 1912. In 2013, Newark became Newark Recycled Paperboard Solutions. The company was rebranded to better reflect the upward direction that the company was taking. They are the largest open-market sellers of recycled paperboard in North America. Newark operates six mills that produce over 450,000 metric tons of 100% recycled paperboard annually.
NanoGloss: New calender roll cover from Voith ensures long-lasting gloss and uniform smoothness
With NanoGloss, Voith brings a new calender roll cover onto the market that combines two important characteristics: a high level of mechanical stability and a high level of gloss on the paper. In its first field tests, the new cover achieved impressive results with an increase in gloss points. The paper produced with NanoGloss stands out with its high level of gloss and uniform smoothness.
NanoGloss is a multilayer roll cover which can be used in all positions on super, soft and multi-nip calenders. The proven, innovative finer surface topography achieves a high level of gloss improvement. In contrast to conventional calender roll covers, NanoGloss retains its exceptional surface characteristics between each regrind. The matrix structure of NanoGloss also guarantees the highest levels of stability and resistance. Furthermore, NanoGloss can be repaired just as easily as any other Voith calender roll cover.
Thanks to the characteristics of the new calender roll cover, inflexibility, wear and damage are prevented. Paper manufacturers can therefore enjoy reliable operation with NanoGloss.
Schumacher Packaging relies on ventilation technology by Voith
Voith has supported Schumacher Packaging GmbH in its quest for more environmentally friendly and effective board production by improving the air system and the dryer section hood of the BM 1 in Schwarzenberg, Germany. “One year after rebuilding the ventilation technology by Voith, we can draw an all-round positive balance. Our hood is now closed completely and in combination with a larger heat recovery we need noticeably less energy,” says Matthias Reh, plant manager at Schumacher Packaging. “We were also able to increase production.”
On this project, Voith’s long-standing experience in the area of board and packaging paper machines again showed through. In several finely coordinated steps, Voith optimized the dryer section hood, the air system and heat recovery. The energy requirement was always the focus of the measures. Thus, the power requirement for driving the ventilation systems could be decreased significantly. The increase in efficiency met the high expectations of Schumacher Packaging. It allows the board manufacturer to produce its high-quality products in an even more sustainable fashion.
Schwarzenberg BM 1 has a wire width of 2,160 mm and an operating speed of 42 m/min to 133 m/min. It produces gray, brown and white solid board in a basis weight range of 350 g/m² – 1,050 g/m².
Schumacher Packaging is an owner-managed pan-European specialist for packaging made of corrugated cardboard and solid board. Founded in 1948, today the company employs more than 2,200 workers at 10 locations in Germany and Poland.