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- Testing Equipment: Does Your Lab Measure Up?
- (Magazine)
- July 31, 2003, ... Stiffness or hardness of webstocks require yet another setup. A material's coefficient of friction (COF) or “slip” is another property you may test in order to predict how fast your equipment can run ...
- A Slippery Answer to Web Scratching
- (Magazine)
- June 30, 2003, ... and inertial torque). The result: Bad idlers are repaired, and marginally driven rollers are modified with more wrap, higher friction, or better bearings. Also, an idler roller minimum performance is identified ...
- Cyclic-Olefinic Copolymers as Non-Migrating, Polymeric Slip Additives in LDPE Cast Films
- (Magazine)
- June 30, 2003, ... packaging community for many years. They are especially of interest in form-fill-seal operations where high coefficient of friction (COF) from “too little remaining” conventional slip additives can actually ...
- Coex for Success
- (Magazine)
- June 29, 2003, ... surface may require heat sealing capability. The other surface may need low friction or better heat resistance for improved handling in the packaging machine. The core may need to provide strength and ...
- Winding Better Rolls
- (Archive)
- May 31, 2003, ... nip tightening must exceed the break-away friction, but it also is limited by it. The winding nip cannot induce more tension than the frictional force at the sliding point. Therefore, front-to-back web ...
- Fit for Use
- (Materials)
- April 30, 2003, ... and be stiff enough to resist buckling when pushed. In some cases these substrate/machine interactions also can be affected by film surface properties such as coefficient of friction (COF), static charges, ...
- Products
- (Magazine)
- April 30, 2003, ... Enercon Industries Corp., Menomonee Falls, WI; 262/255-6070; enerconind.com The ELF low-friction treater roll has a lightweight design said to reduce momentum and inertia significantly. Roll turns more ...
- What's New in Narrow We
- (Magazine)
- February 28, 2003, ... than 1,200 images/hr. It is designed to meet the needs of high-volume continuous form printers, as well as near-line and off-line finishing solutions. Cutter is friction-fed with the use of a simple paper ...
- Cinching Belt Tightening Gone Bad: Part Two
- (Magazine)
- February 28, 2003, ... double internal roll pressure. If your product doesn't have an inherently high friction coefficient, think of ways to increase layer-to-layer traction. Moisture, magnetism, and electrostatic pinning are ...
- Enercon's ELF Roll Designed for Thin Film Converter
- (News | New Products)
- February 04, 2003, Enercon Industries Corporation reports the development of ELF—Enercon low friction—roll specifically designed lighter weight film substrates. MENOMONEE FALLS, WI, USA—Enercon Industries Corporation reports ...
- A Well-Balanced Process Line
- (Magazine)
- December 31, 2002, ... exist: static, kinetic, dynamic, and whip. Static unbalance is gravity at work. If a mounted roll on frictionless rollers has a heavy or weighted portion, the heavy or weighted portion would rotate ...
- Differential Rewinding: Part Three
- (Magazine)
- December 31, 2002, ... shaft clutching mechanisms, especially systems dependent on consistent core-to-spacer friction, commonly have 2:1 cross-shaft torque variation. More advanced designs still will have torque variations caused ...
- Products
- (Magazine)
- December 31, 2002, ... costs of ordinary dry-friction brakes. Mfr. reports these fully electric brakes apply proprietary oil-shear cushioning to deliver many times the friction material life of ordinary dry-friction brakes and ...
- Increasing Your Flexo Press Speed a Notch or Two
- (Magazine)
- November 30, 2002, ... may have to be adjusted as a significant increase in the press dynamics can create local ink starvation areas. Anilox wiping and friction issues: Use of dual-blade inking systems brings higher friction ...
- Differential Rewinding: Part Two
- (Archive)
- November 30, 2002, ... the direction of the clutching action. Axially loaded shafts, the granddaddy of differential winding, load a stack of cores and spacers laterally against a fixed collar, creating friction at every core-spacer ...
- Products
- (Magazine)
- November 30, 2002, ... 477 900 034 Slitters are designed for widths down to 6 mm, using various systems such as crush, shear, and razor blades, singly or in combination. Individual friction shaft, turret winder, and spooling ...
- Five Questions and Answers on Lubrication
- (Magazine)
- September 30, 2002, ... coating thickness variation. Lack of friction due to lubrication will increase laterally shifting and position error at web guides and winding rolls. Excessive wound-in air may form “soft roll” defects ...
- Goldilocks and the Three Bears Deal with Traction Problems
- (Magazine)
- July 31, 2002, ... we use to grip the web to meet our goals for web speed, position, and flatness. To be able to position the web, we need to “get a grip,” creating the frictional force between the web and each roller. How ...
- In the Bag
- (Magazine)
- June 30, 2002, ... high coefficient of friction (COF) on the outside to prevent sack slippage once it is palletized. Some modifications to the film surface can be made to increase the COF, including embossing or by introducing ...
- Products: Edited by Deborah Donberg
- (Magazine)
- May 31, 2002, ... brake is a compact version of co.'s standard air-cooled design with a finned friction disc design said to provide excellent heat dissipation capability. This means smaller brakes can handle large jobs easily, ...
