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Web Lines | Why Avoid Nips?

(Web Handling)

September 24, 2012, I recently posted my top three blind recommendations for any process. If you are a long-time reader of Web Lines, you will know why to avoid nips and use bigger cores, but if not, here is a quick refresher ...

NimCor Bowed Rolls Suited for Narrow Webs

(Label/Tape)

June 23, 2012, Perma-Bow bowed rolls from NimCor remove web wrinkles, control slit web separation, and more in narrow web applications   NASHUA, NH | NimCor offers Perma-Bow bowed rolls said to be well suited for ...

WHQuiz Answer #13 - Web Wrinkling vs. Speed

(Web Handling)

February 22, 2012, WebHandlersQuiz 13: Wrinkling - If you see wrinkles at low speeds, but the wrinkles go away at higher speeds, what is the most likely reason?  Answer... WebHandlersQuiz 13: Wrinkling - If you see wrinkles ...

WHQuiz Answer #14 - Web Wrinkling and Deflection (2)

(Web Handling)

February 22, 2012, WebHandlersQuiz 16: Spreading - Name a spreader or anti-wrinkle roller that does NOT have a rubber surface?  Answer... WebHandlersQuiz 16: Spreading - Name a spreader or anti-wrinkle roller that does ...

Web Lines | Test Your Web Handling Knowledge

(Web Handling)

February 14, 2012, Can you pass this 20-question quiz to prove you understand basic principles of web handling? Can you pass this 20-question quiz to prove you understand basic principles of web handling? What if a ...

Web Handling Workshops from TJWA & Optimation

(News | New Products)

January 26, 2012, Wrinkling, spreading, winding, tension control, and web defects are some of the topics on the agenda in a 2012 series of web handling workshops ROCHESTER, NY | Optimation and TJWalker + Assoc. have ...

Web Lines: Take the Laminator Quiz

(Coating/Laminating)

October 16, 2011, ... and easily viewable? 3 pts. 3. Do you control pre-laminating tensions of input webs to match elastic strains? 10 pts. 4. Do you control downstream tension to a set point nearly equal to the sum of ...

Plotting Shear Wrinkles

(Web Lines)

August 21, 2011, The combined conditions of when roller misalignment is bad enough to wrinkle a web is a complicated mechanism. You have to combine concepts of roller misalignment, web buckling, and web-to-roller traction ...

Web Lines: Wrinkling of Foils

(Flexpack)

July 31, 2011, ... by the same roller misalignment or diameter variation. Will copper and aluminum foil webs run wrinkle-free on equipment designed for paper and film handling? What is the recommended roller alignment ...

Web Handling Workshop Includes Live Demos

(Web Handling News)

July 04, 2011, TJWalker + Assoc. and Optimation Technology host a Web Handling Workshop at the Optimation Media Conveyance Facility on August 23–25 in Rochester, NY ST. PAUL, MN |  TJWalker + Assoc. and Optimation  Technology ...

Web Lines: Displacement vs Steering | Battle of the Web Guides

(Web Guiding)

May 31, 2011, Tim Walker Addresses Displacement Guides, Known as Offset Pivot Guides, and Steering Guides that Have Differing Uses for Providing Intermediate Corrections of Laterial Web Position In today's match, ...

Flexible Slitter Has Short Web Path

(Slit)

May 31, 2011, ... is said to offer flexible, targeted slitting capacity that's easy to implement. Reported benefits: compact footprint; short web path for improved rewind roll quality; bowed roller to remove wrinkles prior ...

Web Lines: Limitations of Vacuum Pull Rollers

(Web Handling)

February 28, 2011, I love vacuum pull rollers (VPRs). When it comes to driving a web without slipping and scratching or to knowing you have control of the tension differential I love vacuum pull rollers (VPRs). When it comes ...

Web Lines: Don't Flip Out - It's Just a Web Fl

(Web Handling)

January 31, 2011, The first time you see a web flip, you will wonder if you are looking at an M.C. Escher drawing. Escher was famous for his castles where you could walk The first time you see a web flip, you will wonder ...

Web Lines: Q&A on Roller Deflection

(Web Handling)

October 31, 2010, ... rollers, measure the level on the outboard side of the roller with no load and after hanging a weight equal to web tension at the center of the roller. For dual-end supported rollers, measure the level ...

Optimize Web Handling

(Web Handling)

June 30, 2010, The apex of the Ajusta-Bow roll can be adjusted while in use to optimize web handling and performance. Said to improve web control by distributing lateral The apex of the Ajusta-Bow roll can be adjusted ...

Web Guiding | Lateral Motion Causes

(Web Lines)

March 31, 2010, Where is your web? In the machine direction, hopefully, it is continuously running between your upstream and downstream processes. But where is it laterally? Where is your web? In the machine direction, ...

Don’t Miss Upcoming Web Handling Workshop

(Yo's Yarns)

November 11, 2009, Don't miss the upcoming workshop on December 7–9 that our own Tim Walker, of TJWalker Assoc. (www.webhandling.com) and author of his monthly column “Web Lines,” is staging with Optimation out at the Media ...

Get a Grip on Your Web

(Tension)

October 31, 2009, Whether a converter needs to isolate tension at various zones in a web line, reduce web slippage over a roll, or pull the web at increased speeds and Whether a converter needs to isolate tension at various ...

Baggy Webs: Part 4 Minimizing

(Archive)

July 31, 2007, What does minimizing a baggy web mean? Two things. First, we would like to minimize the level of bagginess in our webs. Second, we would like to minimize the waste associated with running the inevitable ...