Search
- WHQuiz Answer #8 - Nipped Driven Rollers
- (Web Handling)
- February 22, 2012, WebHandlersQuiz 8: Traction – When is a nipped roller needed on a driven roller separating two tension zones? Answer... WebHandlersQuiz 8: Traction – When is a nipped roller needed on a driven roller ...
- WebHandlersQuiz #19: Advantages of a Nipped or Gap-Controlled Roller
- (Web Handling)
- September 30, 2012, WebHandlersQuiz #19: What are the three advantages of using a nipped or gap-controlled roller ahead of winding? So we're back to basics, Folks! Can you name three advantages for using a nipped or gap-controlled ...
- Workshop on Nipped Systems & Laminating
- (Web Handling)
- September 04, 2012, A workshop focusing on nipped rollers offers a better understanding of the underlying engineering principles and design considerations that lead to improved profitability in your value-added web processing ...
- WHQuiz Answer #7 - Large Diameter Rollers
- (Web Handling)
- February 22, 2012, ... Chilled or heated rollers will often be large diameter to have more time in contact and more heat transfer capacity. Nipped rollers, except those with less than 1 lb/in (175 N/m) load, should have ...
- Web Lines: Limitations of Vacuum Pull Rollers
- (Web Handling)
- February 28, 2011, ... flow volume. It's not as sophisticated as a low vacuum processing chamber, but it has its own sealing and pressure control challenges. This adds up to a roller that is much more expensive than a nipped ...
- Advantages and Benefits of Conductive Rubber Coverings in Critical Roll Positions
- (News | New Products)
- February 07, 2021, ... conductive but it is conductive enough to dissipate static on rollers because the voltages are high and the currents are very small. If a rubber covered roller was nipped to metal roller in an actual ...
- Web Lines | Action Plan for Baggy Webs
- (Web Handling)
- August 16, 2016, ... longer lanes. When tension does not pull out the bagginess, baggy webs wrinkles at nearly any nipped roller process. Bagginess can contribute to other defects, including coating thickness variations, ...
- Web Lines | Wrinkling?
- (Web Handling)
- May 18, 2014, ... that can be tested with a fairly simple equipment setup. Wrinkles from misalignment Wrinkles from roller deflection Wrinkles from nipped rollers It is important to think about the wrinkles ...
- Is There a Doorman at Your Winder or Do You Let Just Any Web Get In?
- (Web Handling)
- May 15, 2014, ... roll or rubber roller covering can forgive. Wrinkling–Nipped processes are always sensitive to baggy and skewed webs, especially when tension isn’t high enough to pull out the extra length. Spreading ...
- Web Lines | Why Is Winding Optimization Difficult?
- (Web Handling)
- April 21, 2014, ... and winder. Product-winder mismatches are more obvious when trying to wind a giant roll on a tiny core. Driving and entry span options are varied and significant (center vs. surface, gapped vs. nipped). ...
- Do You Need a Roller That Is Chillin' and Groovy?
- (Web Handling)
- March 30, 2014, ... losing heat transfer capability at high speed/tension conditions? Nip it. Ugh. I can’t believe I could even say that. Most people who have worked with me know of my phobia of nipped rollers. However, ...
- Destination CPP EXPO: Solve Your Technical Questions
- (Trade Shows)
- September 06, 2013, ... There are at least six different ways to lose registration . . . . C04 Tuning Up Your Nipped Rollers (To Increase Profits) Sept. 9: 10:30 AM - 12:00 PM Room 504C Presented by: Timothy J. Walker, TJWalker ...
- Show Preview | CPP EXPO and PRINT 13 Share a Stage
- (Print)
- August 07, 2013, ... J. Walker, president, TJWalker + Assoc. and author of PFFC’s “Web Lines” column Did Tension Control Mess Up My Registration? Tuning Up Your Nipped Rollers (To Increase Profits) Wrinkle-Free Web ...
- Eliminating Boundary Layer Air During Winding
- (Web Handling)
- July 15, 2013, ... is a bad idea for wrinkle sensitive webs. In nipped winding, if the web is placed on the winding nip roller in position, wrinkle free, then this condition will be passed on to the winding roll. The other ...
- PFFC & CPP EXPO Collaborate on Conference Sessions
- (Yo's Yarns)
- April 28, 2013, ... alike. His sessions include: WH1: Tensioning and Mis-Registration: Did Tension Control Mess Up My Registration?–September 9: 8:30 A.M. to 10 A.M.; Understanding Nips: Tuning Up Your Nipped Rollers ...
- CPP EXPO Taps PFFC To Collaborate on Conference Program
- (Coating/Laminating News)
- April 21, 2013, ... to printers and converters alike. vivasex His sessions include: WH1: Tensioning and Mis-Registration: Did Tension Control Mess Up My Registration?; Understanding Nips: Tuning Up Your Nipped Rollers ...
- Web Lines | Why Avoid Nips?
- (Web Handling)
- September 24, 2012, ... here is a quick refresher on those topics. Avoid nips? Why? Nipped rollers are a top source of wrinkles and creases. Nipped rollers have the friction and pressure needed to shift, buckle, and fold ...
- WHQuiz Answer #9 - Nip Uniformity
- (Web Handling)
- February 22, 2012, WebHandlersQuiz 9: Nipped Rollers - What is a simple measurement to determine if two nip rollers are pressing together uniformly? Answer... WebHandlersQuiz 9: Nipped Rollers - What is a simple measurement ...
- WHQuiz Answer #10 - Laminate Curl
- (Web Handling)
- February 22, 2012, WebHandlersQuiz 10: Laminating – If a two-layer laminate product curls to the top layer in the machine direction, which would reduce the curl: increase or decrease the top layer pre-laminate tension? ...
- WHQuiz Answer #11 - Intermediate Guiding
- (Web Handling)
- February 22, 2012, WebHandlersQuiz 11: Guiding - For automatic guiding in the middle of a process, which is preferred – A steering type guide or a displacement type guide? Answer... WebHandlersQuiz 11: Guiding - For ...
- WHQuiz Answer #12 -Web Tracking
- (Web Handling)
- February 22, 2012, WebHandlersQuiz 12: Web Tracking – In a vertical span, which will cause the web to track off center more, a roller tram or level error? Answer... WebHandlersQuiz 12: Web Tracking – In a vertical span, ...
- 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
- (Web Handling)
- February 22, 2012, WebHandlersQuiz 15: Wrinkling – If a roller is deflecting into a bowed shape due to gravity, which direction is it best NOT to approach that roller if you don’t want to wrinkle: vertically from above, ...
- 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, ... rollers in a process likely will have the larger diameter? 8. Traction—When is a nipped roller needed on a driven roller separating two tension zones? 9. Nipped Rollers—What is a simple measurement ...
- Web Handling Workshops from TJWA & Optimation
- (News | New Products)
- January 26, 2012, ... of what is web handling, get your questions answered. • Nipped Systems and Laminating—September 11-12. Understand how to create uniform pressure, wrinkle-free nipping systems and curl-free laminates. ...
- Web Lines | A Rant from Tim Walker
- (Web Handling)
- December 04, 2011, ... tractor. That’s why the dashboard reads miles per hour. But, my dear equipment supplier, when you get out of your car and get to the office or shop floor and build your winder, slitter, or nipped process, ...
- Web Lines: Take the Laminator Quiz
- (Coating/Laminating)
- October 16, 2011, ... (c) does it create a small wrap angle on the nip roller? 5 pts. 18. Have you measured or estimated nipping roller deflection from end loading and avoid entering the nipped roller with 90-deg wrap angles ...
- Do You Want Nips with That? Part 2
- (Winding Unwinding Rewinding)
- April 30, 2011, ... be opened once steady line speed is reached. Q Why are nip rollers a popular choice to create drive roller friction? A Mainly, nips are simple to understand — pinch it, pull it. We can relate to nipped ...
- Web Lines: Would You Like Nips with That?
- (Winding Unwinding Rewinding)
- March 31, 2011, ... Every day, dumpsters and truckloads around the converting world are filled with waste generated due to unnecessary nipped rollers. Nipped rollers are a double-edged sword, creating high pressure for value-adding ...