Why humidify? For printing...

Humidification and Evaporative Cooling humidity.com Trusted technology

Nortec humidifiers are used by breaks and machinery downtime. trust in Nortec humidification systems printers around the world to prevent Some of the world’s largest printing to help them improve productivity and dimensional changes to paper, avoid companies, print machinery maintain their product quality. electrostatic issues, and prevent web manufacturers and brands put their

Strålfors, Sweden Edda Printing, Iceland Vistaprint, Canada Nationalbank, Denmark Amcor Tobacco Packaging, Russia Quebecor Printing, Canada Multi-Color Corporation, Scotland Komori, Netherlands RR Donnelley, Canada Polestar, UK Vistaprint, Netherlands Canadian Bank Note Company, Canada BDT Security Printing, Ireland Heidelberger, Germany KBA, Germany Tlačiarne BB, s.r.o., Slovakia Komori, France Océ, Germany 3M, USA Avery Dennison, USA Hewlett Packard, Spain Ekol Ofset, Turkey Sole 24 Ore, Italy Shutterfly, USA RR Donelly, USA King Fahad Complex, Saudi Arabia Sung-In Printers, Korea Staples Print Solutions, USA I-Pack, Kuwait Tetra Pak, China

Giesecke y Devrient, Mexico Beijing Beiren Yuxin Offset Printing Co., China Impap SA de CV, Mexico

Sagitario S.R.L., Bolivia English Press Ltd, Kenya Imprenta Mariscal Cia. Ltda., Ecuador Ramco Printing Works Ltd, Kenya

Lightning Source, Australia Offset Alpine Printing, Australia Marinetti-Packaging, Chile

Global expertise, local solutions

Nortec has manufacturing facilities in many different processing production team to deliver innovative in Canada, UK, Denmark, Germany, technologies, climates and all types of solutions for specific printing Switzerland and China as well as print production and finishing facilities. processes. wholly-owned sales operations in 13 countries and distributors in over 40 Humidifier systems are designed for Nortec’s expert humidifier teams can more. each individual application by print provide installation, commissioning humidification experts to create the and maintenance support to ensure The company has been serving the optimal production environment. improved production efficiencies global printing industry for more than If required, Nortec’s regional R&D continue to return on the initial 25 years and is highly experienced departments can work with a client’s investment for many years. Improve print productivity with optimum humidity

In the extremely competitive print market, humidity control is essential to maintain productivity at all stages of production and avoid machine downtime and waste.

Paper Sheet fed offset the distorted paper is then under Paper loses moisture rapidly when Unwrapped paper in a dry press hall greater tension at its edges than the exposed to dry air. Sheet and web will lose moisture from any exposed centre, causing tears. These web breaks roll paper is typically produced and surface. Tight edges result, making mean substantial downtime as the wrapped to stay in equilibrium with air the paper curl, causing misfeed, paper is spliced or rethreaded through at a humidity of 50±5%RH. When the misregister, dot doubling and creasing the press. ambient humidity falls below this level, as the paper passes between blanket paper loses water to the environment and impression cylinders. Misfeed also In a dry press hall, the rapid passage from exposed surfaces, changing occurs due to electrostatic build-up, of paper through the press generates its shape, dimensions and physical making stacking difficult. Printed work electrostatic charge. This results in properties. awaiting another pass continues to problems with stacking, cutting, change shape, resulting in misregister. trimming and folding, due to sticking. Below 40%RH, the movement of paper on paper and other surfaces generates During finishing, paper that has low Web printing is highly productive and electrostatic charges, which cause it to moisture content will crack along folds any loss of production is costly, but stick together, attract dust and become resulting in a lesser quality product or problems relating to dry air can be difficult to handle. increased wastage. addressed by maintaining the relative humidity at 50-55%RH. In flexo, with Platemaking Maintaining a relative humidity of 50- water-based inks, 55-60% is required. When the protective film is removed 55%RH in the press hall and bindery from plates, electrostatic charge is resolves these issues. Digital printing generated. This can attract dust and The problems experienced elsewhere grit to an otherwise unblemished Web printing in printing apply equally to digital but surface, makes handling difficult and If air is too dry in the paper store, electrostatic problems associated with also generates sparks. Maintaining an laydown area and reel stand, the machinery can be a particular issue. To environment of 45%RH prevents these exposed edges of the paper rolls lose counter this, a relative humidity of problems. moisture and shrink. On the web press, 50-55%RH is recommended. When it comes to printing facilities, no one has more experience with humidty than Nortec

Nortec has a comprehensive range largest of press facilities. Let us help Nortec also offers a wide range of of humidification and evaporative you increase productivity, decreased associated products such as water cooling products to suit any printing waste, improve product quality which treatment systems, air compressors, facility. will all result in higher profits for you. pumps and humidity monitors.

From wall-mounted humidification Nortec has the technology and systems for a small digital print room expertise to proivde the ideal solution to extensive spray systems for the for all printing processes.

DL Series Hybrid Humidifier ML Series High Pressure Humidifier

Draabe Series TurboFogNeo High Pressure Humidifier EL Series Electrode Steam Humidifier

As the leading manufacturer of commercial/industrial humidification systems for more than 40 years, Nortec has the technology and application expertise to meet the needs of any application.

Contact us today and ensure you have the best humidification and cooling solutions for your data center.

USA 2700 90th Street, Sturtevant, WI 53177 835 Commerce Park Drive, Ogdensburg, NY 13669 Canada 2740 Fenton Road, Ottawa, Ontario K1T 3T7 Tel 1.866.NORTEC1 Fax 613.822.7964 Email [email protected] humidity.com

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