Specialty Paper Machines
The range of use of specialty papers
It takes a very special kind of expertise to manufacture specialty papers for items like bank notes or thermal receipts. This is why for each specialty paper our production technologies are tailored to the specific application.
Paper machines not only produce volume grades such as newsprint, they also provide paper for tea bags and gasoline filters, bottle labels, wallpaper and décor coverings for furniture as well as backing paper for vinyl wallpapers.
Fascinating and versatile
A quick look in your wallet will suffice to give you an idea of the versatility of specialty papers: The fuel receipt is printed on thermal paper, the banknotes consist of special banknote and security paper, and without the photographic-based paper your family photo would look only half as good. Cigarette papers, decor papers and labels are also categorized as specialty papers. Although specialty papers only account for five percent of worldwide paper consumption, they achieve much greater added value compared with mass-produced papers.
Expert know-how for specialty paper production
The challenges involved in the manufacture of specialty papers are diverse. Because they are generally only produced in small production lots of up to a ton, the requirements for the paper machines are stringent. Voith is heavily involved in the production of specialty papers and for decades has been developing new technologies and products to enable its more efficient and higher quality manufacture. We supply products and technologies for all grades of specialty papers. The high quality level and consistency of quality of coated and uncoated specialty papers is always a key consideration. This is why our production technologies for each specialty paper are tailored to every specific case.
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Engineered for success
New DynaLayer from Voith for better coating quality and greater cost efficiency
With its ease of handling and outstanding coating quality, the DF Coat has evolved into an efficient alternative to conventional coating units. Through several refinements, Voith is extending the range of uses for non-contacting coating application and increasing the economic efficiency of paper producers with the new DynaLayer.
Decor paper specialist Ahlstrom-Munksjö modernizes its quality control system with ComCore
The paper manufacturer Ahlstrom-Munksjö is a premium manufacturer of decor paper. Munksjö merged with the Finnish specialty paper manufacturer Ahlstrom on April 1, 2017. The paper mill now works under the name of Ahlstrom-Munksjö Paper GmbH and operates a total of two paper machines (PM 1 and PM 3) at its site in Unterkochen, Germany. These produce several tons of decor paper per hour. In total, the Unterkochen site produces around 75,000 tons of premium decor paper per year.
Services and products for papermaking
As a system vendor we aim to support our customers throughout the entire value creation process, so we are expanding our service locations worldwide, adapting our range of services to customer needs and also adopting new approaches to service with Papermaking 4.0.
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Calender
Calender
Depending on the purpose for which a paper is used, its surface must have certain properties – especially smoothness and gloss. These properties are imparted to the paper by calenders. Calenders are machines with up to 15 rolls arranged one above the other, which are run together under pressure and then form closed nips.
The EcoCal Hard calender is for online calibration of the paper web and gives the paper a constantly precise thickness due to its hard nip between rolls. The smoothness can also be increased.
read moreEcoCal Soft calenders give the paper web a uniform consistency with slightly varying density by means of an elastic nip. Visual characteristics such as gloss and smoothness are positively influenced.
read moreAt the HydroFormer test facility in Düren (Germany), new products can be tested and their production on an inclined wire verified, minimizing the investment risk.
read moreThe Janus MK 2 is a calender that for the first time combines the advantages of the classic supercalender with the efficiency of the familiar online soft calender.
read moreAutomation
CalTronic Flex is future-compatible hardware for roll calculation and operation. The system replaces the old CalTronic operating system in a quick and easy retrofit.
read moreNipcoSet is a modernization of the Nipco roll control. The zone control is modernized without changing technological characteristics. The evaluation function is also new.
read moreOnQ ModuleTherm corrects the edge profile and the thickness profile in the short-wave range at the calender. Profiling of the paper web is carried out with tempered air.
read moreOnQ Profilmatic is a progressive cross profile control software program characterized by high reaction speed and delivering very flat cross profiles.
read moreV30 upgrade nozzles are an inexpensive and quick solution for the exchange of the air-atomizing nozzles for third-party manufacturers.
read moreThe Voith LSC Ash Sensor measures the filler content of the running paper web without touching it. The monochromatic iron 55 source provides the best stability and precise measurement.
read moreThe Voith LSC Ash Sensor provides for contactless measurement of the paper web’s filler content, even if the filler composition is unknown.
read moreThe Voith LSC Ash Sensor measures the total filler content and the filler composition of the running paper web without touching it. A monochromatic iron 55 source provides for the highest level of measuring accuracy.
read moreThe Voith LSC Basis Weight Sensor with a krypton 85 source facilitates contactless online weight measurement of the running paper web up to 1250 g/m².
read moreThe Voith LSC Basis Weight Sensor with a promethium 147 source measures the weight of the running paper web online and without contact. It is specifically designed for graphic paper and tissue up to 180 g/m².
read moreThe Light Touch caliper sensor precisely measures the paper thickness with contact on both sides. The measurement is based on the change in magnetic resistance.
read moreLSC Color Sensor measures the color and white content of the paper without touching it, as well as the concentration of fluorescent optical brighteners.
read moreThe Voith LSC Gloss Sensor measures the surface quality of (calendered) paper online. The sensor can be used in an uncomplicated fashion without attaching cables or hoses.
read moreThe Voith LSC infrared moisture sensor facilitates contactless moisture content measurement of the running paper web. It provides a high level of accuracy over a wide grade range, from tissue to board and packaging.
read moreThe Voith LSC infrared moisture sensor facilitates contactless measurement of the running paper web’s moisture content. It also delivers precise measurement results with uneven formation and moisture.
read moreOptimization
The CalCatch gripping device guarantees safety-compliant operation of super calender movable platforms. The retrofit is possible in the shortest time and without disassembly of the cage.
read moreCalender doctor systems guarantee optimal cleaning of roll surfaces. The flexible blade holder allows uniformly low system pressure and prevents streaking.
read moreCalFrame involves overhauling the frame in the super calender for uniformly good and reproducible paper quality. Maintenance is simplified due to replaceable wear bars.
read moreThe FlexiTherm heating system improves calendering in the calender for new or modified paper qualities. Optimal cross profiles are generated by means of a uniform roll surface temperature.
read moreThe FlexiThermEdge edge heater provides targeted heating of the paper web’s edge. Since the web edges are calendered with additional distributed load, more marketable paper can be produced.
read moreFlying Splice LS allows a fully automatic reel change on offline calenders. The time required for the reel change is thus reduced, and the calender capacity can be increased by up to 20%.
read morePrevoSystems are fully automated threading systems that ensure the highest level of safety for the operating personnel and short threading times.
read moreVibroSoft is a hydrodynamic vibration damper that reduces vibrations for profile rolls and floating rolls, resulting in extended service life of felts, roll covers and doctors.
read moreTail threading
The PrevoCut DC (Disk Cutter) is a tail cutter installed in the open draw of two-tier dryer sections. It ensures a flawlessly cut tail.
read moreThe PrevoCut STC and DTC high-pressure water jet tail cutters cut a flawless threading tail with the aid of a water jet between 600 and 1,300 bar.
read morePrevoSystems are fully automated threading systems that ensure the highest level of safety for the operating personnel and short threading times.
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