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- Property Control
- (Coating/Laminating)
- January 31, 2008, ... of the internal friction of the material's molecules. Materials with a high viscosity do not flow readily; materials with a low viscosity are more fluid and flow easily. The viscosity is the slope of ...
- Roll Winding Dynamics
- (Web Handling)
- January 31, 2008, ... concern. Diametrical variation also may force a web to steer towards the larger area. Rolls may become out-of-round during the winding process, sometime due to materials with a high co-efficient of friction, ...
- Differential Winding Limits: Part I
- (Web Lines)
- October 31, 2007, ... the tension of constant torque winding may drop too much, making the roll’s outer layers too loose to hold the roll together. The primary differential winding torque is created by the shaft’s frictional ...
- In Search of Tension Isolation
- (Magazine)
- September 30, 2007, ... reason is the myth buster. What do people imagine when they use the term “tension isolation”? It is the belief that two tension zones are independent of each other if the friction of the web on the ...
- Support Your Rollers
- (Magazine)
- August 31, 2007, ... these shaft holders: If you’d like to keep your alignment over time, don’t rely on the bolt friction to hold things in place; take the time to drill and pin the roller mounts securely in place. If you ...
- New Products
- (Magazine)
- June 30, 2007, ... bearing friction, speed change, and boundary layer air. PFFC-ASAP 433 Cut Downtime with Slitters Bimec, Vanzaghello, Italy; +39 0331 307491; bimec.it The STM Series of high-speed, duplex slitter/rewinders ...
- Narrow Web & Label Reporter
- (Magazine)
- June 29, 2007, Narrow web news from: DeWAL, Metalcraft, Mesirow Financial, AVT, Tailored Solutions, and Edale. Covering the Full Spectrum of Narrow Web News, Events & Activities Tapes Made to Reduce Friction SAUNDERSTOWN, ...
- A Scrappy Competitor
- (Magazine)
- March 31, 2007, ... recycling system, a variety of scrap substrates is fed into a large vertical cutter/compactor unit that uses friction to compress, reduce, and prewarm the plastic. The preheated, densified material ...
- Leader of the Six-Pack
- (Magazine)
- March 31, 2007, ... Produced in one pass, the film is said to provide better UV protection and coefficient of friction at a lower cost and exhibits good strength properties; can be laminated to virtually any substrate; and ...
- Leader of the Six-Pack
- (Magazine)
- February 27, 2007, ... such as in sub-roofing applications, while permitting safe walking conditions even when wet. Produced in one pass, the film is said to provide better UV protection and coefficient of friction at a lower ...
- Adding Up Additives
- (Tech Reports)
- December 31, 2006, ... that help packaging do its job. Keeping Friction in Bounds Slips let films slide over themselves and move smoothly through converting equipment. When added to a film, they migrate to its surface and ...
- How to Drive a Winding Roll
- (Web Lines)
- November 30, 2006, ... the winding roll’s layers. If you have marginal friction or pressure within your roll, the increasing torque of large build-up ratio often will cause slippage, cinching, and telescoping. Surface winders ...
- Dancer Rollers: Trust but verify
- (Web Lines)
- October 31, 2006, ... what your tension is and how much it’s varying, the other big disadvantage of a dancer roller is that it will create tension variations. Every dancer roller has some resistance to motion, including friction ...
- Pallet Rotator Inverts Entire Pallet Loads
- (Archive)
- October 23, 2006, The PalletPal Rotator from Southworth can rotate fully loaded pallets. PRESS RELEASE PORTLAND, ME— The PalletPal Rotator from Southworth can rotate fully loaded pallets. It is said to be ideal for replacing ...
- Web Tension: A Pop Quiz
- (Web Lines)
- September 30, 2006, ... to figure the tension ratio of an unnipped roller? (1 point) Have you measured friction of your various webs to the drive roller surface to estimate the tension change that would cause slip? (1 point) ...
- Difficult Winding: Part II
- (Web Lines)
- August 31, 2006, ... the first of the terrible trifecta of difficult winding. This month let's move on to the next two of winding's troublesome trio: roll buildup ratio and coefficient of friction (COF). A roll's buildup ratio ...
- What's Ne
- (Magazine)
- August 31, 2006, ... presses. Features a modular design, quick changeovers, and production speeds to 1,300 fpm. Between-color dyers reportedly ensure even airflow over the working widths with minimum frictional loss and easy ...
- The Place
- (The Place)
- August 31, 2006, ... impact performance were less sensitive to dart wear as were samples formulated with antiblock and slip. The sensitivity of dart to additive formulation was a result of the coefficient of friction of the ...
- Static Elimination Revisited
- (Magazine)
- July 09, 2006, ... some experiences he had on this “shocking” subject. He has worked on many web processing machines and encountered static electricity problems often. Static is not necessarily caused by friction, he says… ...
- Klockner Displays New Packaging Materials
- (Archive)
- July 03, 2006, ... of friction) as compared to standard PVdC coated film. Available in two- or three-layer structures for medium- to high-moisture barrier, the films also are said to have better thermoforming properties. ...