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The Great Span Length Debate | Part 1

(Web Lines)

February 28, 2009, ... and long spans lead to flutter and out-of-plane problems. Next month we'll cover traction, tension, guiding, wrinkling, and spreading. Web handling expert Tim Walker, president of TJWalker+Assoc., ...

Crowning Benefits

(Web Handling: Main)

February 28, 2009, ... area during nip lead in or nip lead out, which causes the web to move back and forth. Excessive wrinkling or foldovers of the web or sheet This is the same issue as above. An uneven nip pressure causes ...

How Much Misalignment Is Trouble?

(Web Lines)

January 31, 2009, ... the bending web lead to buckling and a gathered wrinkling web on the misaligned roller. Shear wrinkles have three prerequisites: a mechanism that causes the web to bend between span, usually roller ...

Shifty Answers to Nip-Induced Tracking

(Web Lines)

October 31, 2008, ... shifting of your web, leading to misalignment or wrinkling. Before I can tell you about how uneven left-right nip loads will induce lateral tracking of your web, I must get on my anti-nip soapbox. The ...

A Wealth of Accumulators

(Web Lines)

August 31, 2008, ... is more common than pivoting, though this leads to many problems of misalignment, wander, and wrinkling during their translation. Try to include mechanical design features that will hold a tight alignment ...

Converting School Hosts Two September Courses

(News | New Products)

August 17, 2008, ... as well as converting machines such as coaters, laminators, printers, and winders. Topics include rollers, controls, nips, spreading, slitting, wrinkling and winding. This course explains the fundamental ...

Seminars for Engineers Moves Date of Web Handling Seminar

(News | New Products)

August 14, 2008, ... areas of web handling, including tension control, rollers design and alignment, nips, guiding, wrinkling, and spreading. The training will address these topics at all levels, providing rules of thumb and ...

Future Events

(Events)

August 11, 2008, ...  Apr. 20–22 | Web Wrinkling & Spreading Workshop, AIMCAL Converting School, Holiday Inn Express, Rochester, NY (803-802-7820; www.convertingschool.com/courses/class.asp?sdate=04/20&sort=9). Apr. ...

Conference on Web Handling Calls For Papers

(News | New Products)

June 25, 2008, ... and Sensors; Out-of-Plane Dynamics and Web Flutter; Slitting and Runability; Winding and Unwinding; and Wrinkling. Contributors are invited to submit unpublished original papers on the topics of interest. ...

Dr. J. Keith Good to Keynote Applied Web Handling Conference

(News | New Products)

May 11, 2008, ... devices, web wrinkling instability, and web traction with the goal of developing analytical and experimental techniques to study mechanics and dynamics phenomena. AWEB sessions focus on winding, slitting, ...

What's New Product

(Magazine)

March 31, 2008, ... burnout, and provides insurance against pinholing, backside treatment, and film wrinkling. Enercon Industries | 262-255-6070 | www.enerconind.com PFFC-ASAP 422 No Gear Changes Needed Uhing rolling ...

Web Handling and Converting, and Winding Courses

(Archive)

February 18, 2008, ... to understand most web manufacturing and converting machines, such as coaters, laminators, printers, and winders. These must-know topics include rollers, controls, nips, spreading, slitting, wrinkling, ...

Web Lines: Thinking About New Equipment?

(Web Handling)

January 31, 2008, ... web handling in the same order I cover the web handling process fundamentals in classes: web properties, tension control, rollers and traction, guiding, wrinkling/anti-wrinkling, winding and unwinding. ...

Get a Grip: Driving Your Web

(Archive)

December 31, 2007, ... these rollers can partially air lubricate at high speeds if they are too smooth and the grooves or holes are too far apart. Nipped rollers My third choice, since they are notorious for wrinkling baggy ...

Parallel Protocol

(Web Handling)

December 31, 2007, ... offsets in both the vertical and horizontal direction, indicating the film might be slacked on the operator side.) Second, there might be a wrinkling problem that can occur when moving through a series ...

Great-Looking Winners Raise In-Mold Awareness

(Magazine)

November 30, 2007, ... or wrinkling in the mold while maintaining good post- mold durability. The printing process was adjusted carefully to achieve desired cure of the UV black background ink. The result is a dramatic presentation ...

Conferences, Seminars & Expos du Jour

(Editorial)

October 31, 2007, ... and “Wrinkling and Winding Defect Troubleshooting.” Like a refreshing oasis in the desert, AIMCAL served more than 215 attendees at the annual technical conference, which was held at the Radisson Ft. ...

Baggy Webs: Part 4 Minimizing

(Archive)

July 31, 2007, ... you will almost assuredly see wrinkling at all your nipped processes. Nips are needed for many processes, such as coating, laminating, and calendering, but avoid nipped rollers for web handling only. Apply ...

Driving R&D

(Magazine)

June 29, 2007, ... Among the key deliverables to WHRC sponsors are analysis and design software packages for winding, wrinkling, and transport. Research problems pursued by the center are fundamental and generic, not ...

Going Thin

(Slit)

June 29, 2007, Thinner gauge materials impact both on operating costs and the environment. The difficulty with going thin is that problems such as wrinkling, air entrapment, and tension control, and various other problems ...