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Static Beat: Off-Line Charging Measurements

(Static Elimination)

March 31, 2011, ... for measuring triboelectric charging performance. If you know of such standards, I invite you to send me an e-mail! Of the many “practical” tests for static charging, one of the best is the “nip roller” ...

Web Lines: Limitations of Vacuum Pull Rollers

(Web Handling)

February 28, 2011, ... flow volume. It's not as sophisticated as a low vacuum processing chamber, but it has its own sealing and pressure control challenges. This adds up to a roller that is much more expensive than a nipped ...

ICE-ing | The Best Part

(Trends/Management)

January 31, 2011, ... for Static Control.” Other contributions include thin film waste reduction, drive systems, nip mechanics, tension control, and splicing accuracy. A third track on package printing and converting will ...

Show Preview - Forecast for Orlando: ICE

(Trends/Management)

January 31, 2011, ... Blaige, Blaige & Co. Wednesday, April 6 10:00-10:30 a.m. Are New High Technology Coating Methods Better than the Old Reliable?: Edward Cohen, Edward D. Cohen Consulting Inc. Conveyance Roller Nip ...

Avoid Marking Sensitive Materials

(Sheeting)

December 31, 2010, ... avoids marking sensitive materials when shingling sheets. Design manages sheet flow by controlling the speed of the cut packet's leading edge as it enters the overlap area, rather than nip pressure. The ...

Reflections on Deflection

(Winding Unwinding Rewinding)

November 30, 2010, ... nip rollers or support arms can alleviate the woes of deflection. A shaft will have less deflection when winding a full width product. In these cases, the shaft often will be reinforced by the pressure ...

Web Lines: Q&A on Roller Deflection

(Web Handling)

October 31, 2010, ... away from the supported end. A roller supported from both ends will have maximum deflection at the center of the roller. What causes roller deflection? Gravity, tension, nip loads, and intentional ...

Static Beat: Prevent Winter Static

(Static Elimination)

September 30, 2010, ... to the manufacturer's recommendations. The rubber or polymer coverings on drive, nip, cleaning, spreader, and lay-on rollers often are sources of sparks because static can accumulate on the surfaces ...

Harper Offers Free Anilox Troubleshooting Guide

(News | New Products)

March 15, 2010, ... pressure, avoiding improper settings of the ink roller nip, solutions to fast-drying ink, ink with excessive viscosity, water-based ink with insufficient pH, solvent imbalances and more. For further ...

Rollers for Quality Finish

(New Products)

January 31, 2010, Calender rollers ensure a quality web finish with precision nip pressures applied to a variety of substrates. Rolls are used to produce unique finishes Calender rollers ensure a quality web finish with ...

Wind Forward And Reverse

(New Products)

January 31, 2010, ... with or without a nip roll or as double stations back to back or face to face, with nip roll and platform. Gloucester Engineering Co. | 978-281-1800 | www.gloucesterengineering.com Circle 419 or ...

Get a Grip on Your Web

(Tension)

October 31, 2009, ... in nip rollers or “S” wraps. Vacuum rollers are designed to pull the web into intimate contact with the roll, preventing web slippage in either direction. The result is a highly effective web control ...

How To Prevent Winter Static

(Static Elimination)

August 31, 2009, ... surface. Maintain these rollers according to the manufacturer's recommendations. The rubber or polymer coverings on drive, nip, cleaning, spreader, and lay-on rollers often are static dissipative. Electrical ...

Foil Capsules Launch Sales

(New Products)

August 31, 2009, ... overzealous operators from allowing minor quality variations to cause shutdowns, so line speeds can be maintained. Pletcher notes that rather than viewing the Nireco system as an intrusive and omnipresent ...

Winding Doesn't Add U

(Archive)

July 31, 2009, ... the yield point). If you double the air pressure on a nipped roller, you will double the air cylinder's contribution to the nip load (don't forget gravity and tension). In winding, few things are linear. ...

AIMCAL To Broadcast Free Webinar on Static

(News | New Products)

June 08, 2009, ...  Machine maintenance, such as cleaning rollers and replacing bearings or belts. Process adjustments including lowering tensions and nip roller engagement pressures. Working with your supplier to reduce ...

WHAT'S NEW PRODUCTS: June 200

(New Products)

May 31, 2009, ... light curtains prior to the nip, as well as emergency stop switches at all four corners of the machine. Machine features speeds of 0-80 fpm, pneumatic tension control, and 8.0-in. nip rolls covered with ...

The Coefficient of Winding Trouble

(Web Lines)

April 30, 2009, ... a product with a COF of 0.1 relative to 0.3 will require three times the nip load to create the same roll tightness. But since low COF rolls need more, they usually need to be wound at higher tension and ...

Crowning Benefits

(Web Handling: Main)

February 28, 2009, Many industrial manufacturers rely on crowned rollers. A crown is a shape or diameter profile necessary to compensate for deflection and obtain uniform nip pressure distribution Many industrial manufacturers ...

Testing & Measuring Products

(Magazine)

October 31, 2008, ... downtime. Dymax Corp. | 860-482-1010 | www.dymax.com PFFC-ASAP 336 Measure Nip Widths The Mini Sigma-Nip electronic nip analysis system measures roller profiles and diagnoses roll alignment, reportedly ...