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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 ...

Coating Matters | Advances in Slot Die Technology for Hot Melt Adhesives, Part 1

(Coating/Laminating)

April 24, 2018, ... is typically non-tacky molten polymers being cast onto substrates with a nipped roll and a large air gap. In extrusion coating, the coating head is directly fed from an extruder. Hot melt coating is typically ...

Web Lines | Unwind Splice Reliability

(Web Handling)

October 24, 2016, ... with dancer roller feedback. 9. Splice Tape Bond > Tension (and Other Applied Forces) The newly formed bond of the splicing tape to the web must withstand tensioning, roller contact, nipped roller ...

E-Books

(Uncategorized)

February 21, 2015, ... This eBook by well-known expert Tim Walker outlines many common issues with tension control, roller design, nipped processes, web position control, wrinkle prevention, and winding. BAGS & POUCHES: ...

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). ...

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 ...

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 ...

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: Q&A on Roller Deflection

(Web Handling)

October 31, 2010, ... that are sensitive to gap or engagement variations. A well-designed nipped roller system will have larger-diameter rollers, rubber-covered rollers, or both to compensate for the pressure variations that ...

Web Lines: How To Control Roller Nips

(Web Handling)

July 31, 2010, ... want to take the need for skill out of the repeatability of the compression. Nipped rollers, used in many processes, rely on high pressure created by rolling a web between two pinching rollers. In nipping ...

AIMCAL Offers Nip Roller Workshop & Drives Course

(News | New Products)

January 12, 2010, ... J. Walker and Dr. Kevin A. Cole. The workshop is directed towards technical employees of any level with a need to understand the fundamentals of nipped roller systems. While some engineering theory and ...

Who's Driving This Nip

(Web Lines)

November 30, 2008, What is the best way to drive a set of nipped rollers? Two rollers and two drive options (driven or not) lead to four options. To make this discussion What is the best way to drive a set of nipped rollers? ...

UV/EB Inks Are Suitable for Laminated Structures

(Inks/Coatings/Primers)

September 30, 2008, ... of the inks, the belt speed of the curing unit was adjusted to decrease the energy delivered to the ink. The UV laminating adhesive was drawn down and nipped on top of the printed and cured UV flexo ink. ...

Web Lines: Thinking About New Equipment?

(Web Handling)

January 31, 2008, ... needs, including number of zones, preferred tension feedback by zone, and drive roller traction preferences. (I like to avoid nipped drive rollers). Include the proposed tension control plan in the specification ...

Get a Grip: Driving Your Web

(Archive)

December 31, 2007, ... for driving a web between tension zones include the following: Unnipped rollers Simple, usually with a larger wrap angle and high traction surface (rubber with a roughness or groove pattern). These ...

CPP: Season Two

(Magazine)

September 30, 2006, ... on the hottest topic related to both winding and wrinkling: baggy webs. Learn how winding can create baggy webs; and how to measure and handle baggy webs — especially in nipped roller processes.  ...

A Communication from the PLACE Div. of TAPPI

(Magazine)

May 30, 2006, ... Mechanism For UV Curable Laminating Adhesives by Debbie Smith, Sartomer Company APPLICATION: A study of adhesives applied to a clear film and subsequently nipped to a second substrate with UV irradiation ...

Reduce Web Nip Problems

(Magazine)

January 31, 2004, Web handling is about transport and delivery, getting from point A to point B, without damaging the product. It is relatively easy to move a web across a free span or over an unnipped roller, but getting ...

What's New Product

(Magazine)

September 30, 2001, ... adhesive is applied directly to the substrate and immediately nipped to the laminating film, co. reports. UV adhesive is then cured instantly as the laminated substrate passes through the UV processor. ...