NeoSilk™ High-Performance Calender Roll Covers - Voith

AsiaEuropeNorth & South AmericaVoith Paper RollsKunshan, ChinaTel.: +86 512 57761858Voith Paper RollsHeidenheim, GermanyTel.: +49 7321 37 6062Voith Paper RollsWilson, NC USATel.: +1 252 291 3800Voith Paper RollsDongying, ChinaTel.: +86 546 6871129Voith Paper RollsDueren, GermanyTel.: +49 2421 499 100Voith Paper RollsAustell, GA USATel.: +1 770 948 8086Voith Paper RollsKarawang, IndonesiaTel.: +62 267 419 719Voith Paper RollsRavensburg, GermanyTel.: +49 751 83 2670Voith Paper RollsTissue Cylinder ServiceBaindt Schachen, GermanyTel.: +49 7502 94 250Voith Paper RollsNeenah, WI USATel.: +1 920 969 2555Voith Paper RollsTissue Cylinder ServicePortland, OR USATel.: +1 503 284 2321NeoSilkHigh-Performance Calender Roll CoversVoith Paper RollsWeissenborn, GermanyTel.: +49 3731 35420Voith Paper RollsSpringfield, OR USATel.: +1 541 726 5014Voith Paper RollsWimpassing, AustriaTel.: +43 2630 36900 0Voith Paper RollsWest Monroe, LA USATel.: +1 318 387 1801Voith Paper RollsLaakirchen/Oberweis, AustriaTel.: +43 7613 5770 0Voith Paper RollsHawkesbury, Ontario CanadaTel.: +1 613 632 4163Voith Paper RollsSt. Poelten, AustriaTel.: +43 2742 806 0Voith PaperSão Paulo, BrazilTel.: +55 11 3944 4869Voith Paper RollsLessebo, SwedenTel.: +46 478 120 80Voith PaperMucuri, BrazilTel.: +55 73 292 2284PikoteknikParhalahti, FinlandTel.: +358 8 434 0600Voith PaperManchester, Great BritainTel.: +44 161 6439273Voith PaperTolosa (Guipuzcoa), SpainTel.: +34 943 67 37 99Voith PaperPonta Grossa, BrazilTel.: +55 42 228 1010Voith PaperBuenos Aires, ArgentinaTel.: +54 11 4762 0040Voith PaperCoronel, ChileTel.: +56 41 467 397vp ro 1002 en rdan 08/2007

NeoSilk: Cost Effective SolutionsThe NeoSilk family of roll covers were developed to improvepaper quality, run time, cover thermal stability and operationalflexibility. With over 700 cover applications world wide,Voith‘s best proven filler, fiber and resin systems werecombined to provide cost effective calendering solutions.Schematic diagramof NeoSilkNeoSilk and NanoPearl togetheroffer a complete range of resincomposite calender covers.Paper QualityDemandNanoPearlThe NeoSilk cover series offers a costeffective solution based on proventechnology. It is designed to meetthe demand on conventional andmodern calender applications.The NanoPearl series is the highendcover line to serve the mostdemanding calendering applications.SNeoSilkSCThermal andMechanical DemandMBoth covers have optimizedversions for every calender type:Softcalender (S), Supercalender(SC), and Multinipcalender (M).The NanoPearl / NeoSilk cover series.

NeoSilk: Efficient, Effective and FlexibleCost EffectiveEfficiencyContaining optimized filler and composite resintechnologies, NeoSilk covers deliver superiorwear and abrasion resistance that increaserun time and reduce defects for mechanicalquality. The optimized technologies provideexcellent marking and barring resistance.For the papermaker this means increasedcalender uptime, reliable scheduled roll changeintervals and decreased maintenance costs.NeoSilk fiber reinforced calender covers offerexcellent resistance to impact and overloaddamages. If a cover is damaged, the fiberreinforcement will minimize the damaged areaand prevent propagation. All NeoSilk covers canbe spot or band patched to reduce operating costs– even if the damage extends into the base layer.The wear and abrasion resistance of NeoSilkcovers also reduce grind losses for re-finishing.This extends the covers’ operating life andreduces yearly maintenance costs.FlexibilityNeoSilk covers are able to maintain highcompressive loads evenly across the nip. Superiormechanical loss factor (tan delta), glass transitionand expansion coefficient properties providethermal stability when exposed to elevated matingroll temperatures, steam applications, increasedspeeds and high loading over multiple nips.For the papermaker, having the ability to use allthe finishing attributes of the respective calenderwill provide the best developed sheet qualities.

NeoSilk: Fitting AnswersNeoSilk SCSupercalendering generates high thermal,mechanical and compressive stresses in thecalender cover. NeoSilk SC is designed tohandle these stresses and maintain a uniformnip profile over extended run times. Comparedto other polymeric covers, the total cover lifeof NeoSilk SC is significantly increased dueto its excellent wear and abrasion resistance.The marking resistance of NeoSilk coversimproves paper quality, machine efficiencyand cost effectiveness. NeoSilk SC coversare available in a range of cover propertiesfor optimum sheet finish, mechanicalcharacteristics and marking resistance.The featureshigh wear and abrasion resistanceoptimized cover designgood marking resistanceimproved thermal stabilityexcellent impact resistancevery good doctorabilityable to be spot or band patched - even into thebase layerThe benefitsextended running cyclesminimum grind lossesuniform nip profile at high operating temperaturesimproved surface and paper qualitiesreduced quality defectshigher load and temperature capabilitygreater operational flexibilityimproved cover lifeextended run cycles and cover lifeimproved cost-effectivenessNeoSilk SNeoSilk S is well suited to perform in hightemperature / high load conditions. Optimizedthermal expansion properties ensure coverstability over the widest range of thermal rolltemperatures. They provide economic returnby increasing grinding intervals and extendingcover life. NeoSilk S covers can be continuouslydoctored providing additional safeguards toprevent quality defects and cover damage.NeoSilk S covers provide uniform densitycharacteristics and good marking resistanceallowing optimum surface finish for a widevariety of paper grades. Requirements forsurface properties of the various grades haveresulted in the development of NeoSilk S coverswith a range of hardness and modulus.Voith EcoSoft CalenderNeoSilk MNeoSilk M was engineered to withstandtoday’s highest levels of applied temperature,line load and machine speed. The compositetechnology in NeoSilk M gives superior wearand abrasion characteristics that provideextended run times and the ability to run fromplanned shutdown to planned shutdown. Thatsame technology basis has proven itself to bethe leader in barring and vibration resistance.NeoSilk M allows the operational window tobe opened further improving productivity.