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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. ...

Whatever Floats Your Web

(Magazine)

May 30, 2006, ... line’s main centerline. (Don’t try this with a roller. Webs don’t like to travel helically around rollers.) The problem with a nonlubricated turn bar is the tension increase from friction. In some applications, ...

The Top 10

(Magazine)

May 30, 2006, ... visibility of the scissor or razor blade knife section. Also offers a ball friction winding shaft; a user-friendly operator panel; and manual or motorized unwinding. Kampf Machinery Corp.—star-slit.com ...

A Communication from the PLACE Div. of TAPPI

(Magazine)

January 30, 2006, ... Technology by Rafael J. Castillo, Dual Spiral Systems, Inc. APPLICATION: A new low coefficient of friction coating is showing promising in reducing melt fracture in high output extrusion lines. In ...

What Static Can Do is Shocking

(Magazine)

January 30, 2006, ... webs. It occurs from the friction generated by a web as it passes over surfaces designed to guide or manipulate it. This is especially true for a plastic web such as PE, PP, etc. Everyone is familiar ...

Converting Rx: Bowed Roller Dosage

(Magazine)

November 29, 2005, ... track in straight lines, instead shifting about two thirds of what is predicted; 2) the web will spread only as much as frictional force is available to pull the web, so spreading is often friction-limited. ...

Narrow Web New Products

(Magazine)

October 30, 2005, ... Brakes are said to be reliable and long-lasting, easier to implement than friction systems, cost-effective, and easy to maintain. Range is very wide to meet requirements of the narrow web label industry. ...

Converting Industry News, Part 1

(Magazine)

September 29, 2005, ... feed opening; a five-wire auto-tier; a slick material tension chamber that self-adjusts to materials of less friction to maximize bale density; and the Pathfinder touchscreen operator interface. SUPPLIER ...

Reporter Clips

(Magazine)

August 30, 2005, ... including anti-rattle, NVH, and friction reduction. The tape comprises a black 20–30-mil-thick, precision-cut nylon flock material, single coated with an aggressive automotive-grade acrylic adhesive. ...

The Converting Relay Race: Part II

(Magazine)

August 30, 2005, ... an unrealistic unwind torque specification. Brakes and motors usually are limited to a 30:1 range. Beyond this, you are in fantasy land (except for some wide torque range frictional devices). If your ...

The Converting Relay Race: Part 1

(Magazine)

July 30, 2005, ... from the shaft or chucks. When the torque applied via the shaft is high, the shaft or chuck needs to have a friction or keyed coupling that can transmit that torque. (We’ll go into what torque is needed ...

Converting Industry News

(Magazine)

July 30, 2005, ... for Swedcut printing and coating doctor blades. Keco develops engineered coatings to reduce cleanup, friction, and wear of press parts such as ink pans, rollers, chambers, and more. Omron Briefs Editors ...

COF in Printed Packaging

(Magazine)

June 29, 2005, ... of friction (COF). Material Science Automatic packaging operations require a specific range of lubricity to process packaging products. Printing inks contribute to the package lubricity and affect both ...

Concave Rollers Pros & Cons

(Magazine)

June 29, 2005, ... roller quickly by adding tape collars to either side. Use a tape that has reasonably good friction relative to your product. Look for a tape that has some roughness if you would like this trick to work ...

New Products, Part 2

(Magazine)

May 30, 2005, New products from: Petzold Concept, UV Process Supply, Scientific Technologies, Beijing Roy Environment Technology, AccuWeb, Convertech, Baldor Electric, Nireco, MAN Roland, GEW, Esko-Graphics, Battenfeld ...

Truth or Myth?

(Magazine)

May 30, 2005, ... other can be an important property in many critical applications. This property often is measured and reported as the slide angle. Some methods of package handling rely on a certain amount of friction ...