Search

Shifty Answers to Nip-Induced Tracking

(Web Lines)

October 31, 2008, Nipping rollers are used in many value-adding processes in web converting roll coating, laminating, embossing, calendering, high-speed winding, and more. Nipping rollers are used in many value-adding processes ...

Deflecting Nip Roller Problems?

(Magazine)

March 30, 2006, What causes nip roller deflection? How can you compensate for nip roller deflection? Web Lines X ’em out! Nipped rollers are vital to many web processes, including coating, laminating, embossing, calendaring, ...

10 Tips on Antiwrinkle Rollers

(Magazine)

September 29, 2004, ... flexible expanders, and edge nips rely on the parallel entry rule. Concave rollers use induced bending and the parallel entry roller to drive the web to lateral tautness. Both types of antiwrinkle rollers ...

When Rollers Fight, Webs Lose

(Archive)

March 31, 2004, ... this is a reasonable and measurable target. Alignment is more difficult in pivoting assemblies, such as winders, nips, and dancer rollers. Start by ensuring the pivot axis is aligned, design the pivoting ...

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 ...

Static Control for Pouch, Bag and Label Lines

(Bag Pouch)

November 17, 2024, ... are causing the bag opening failure, we need to look upstream to solve the problem. Focus first on nip rollers. The incoming web in Figure 2 is chopped into individual pieces by the helical chopper. ...

Static Eliminators: Solutions for Winders, Unwinders and Slitters

(Static-Beat)

August 04, 2024, ... Charges on the Entering Web The web entering the winding roll in Figure 1 should be as charge-free as possible by practicing good static control upstream of the winder. For this winder, a nip controls ...

Consider Wool an Eco-Friendly Industrial Material

(Web Handling)

July 28, 2024, ... its warmth and comfort. What sets wool apart from other fibers is its remarkable combination of properties. Its natural crimp and unique surface provide a "self-densifying" effect that can be manipulated ...

Driving Flexibility and Cost Savings With Modular Cutting Assemblies Exploring Alternatives to Inflexible Purpose-built Production Equipment

(Equipment/Machines - Converting)

July 21, 2024, ... under a set of idler rollers. A sensor automatically pauses the unit if it doesn't detect the presence of any material. Next, a set of nip rollers pulls the material into the slitter station. After the ...

Thermal Transfer Roll Performance Today

(Coating/Laminating)

June 30, 2024, ... innovative ideas. Often, Thermal Transfer applications are nipped, requiring a hard face roller (usually the thermal transfer core) in direct contact (under pressure) with a rubber or elastomeric-covered ...

Static Gets Worse at Higher Line Speeds: Keys Toward Maintaining Good Static Control

(Surface Prep)

May 12, 2024, ... that the air at the web surface moves with the web. As the air approaches the entering nip where the web first touches the idler roller, the air must escape out at the edges of the web and the air pressure ...

Double E Group Releases the Schlumpf Powered Core Plug Handler for the Tissue Industry

(News | New Products)

April 22, 2024, ... controls, a highly maneuverable counter-balanced design and other features that culminate in a material handler that offers the safe and quick manipulation of core plugs in the demanding environment of ...

Tension: The First Thing We Must Get Right

(Coating/Laminating)

April 14, 2024, ... roll. Think of the MSR as the heartbeat of your process. The web should never slip across the MSR. A driven nip or 5-wrap can also be designated as the MSR as long as there is no risk of slippage (Figure ...

Tension: The First Thing We Must Get Right

(Converting Expert)

April 08, 2024, ... of your process. The web should never slip across the MSR. A driven nip or S-wrap can also be designated as the MSR as long as there is no risk of slippage (Figure 1). Figure 1 MSR – Three Examples   ...

R2R USA Conference Draws Biggest Crowd in Five Years

(Coating/Laminating)

December 21, 2023, ... of Web Handling — Instructor: Dr. David Roisum. Master the fundamentals of the must-know topics of rollers, nip, tension and path control, wrinkling, spreading and winding. The in-person courses cost ...

Suppress Static Sparks to Protect Sensitive Coatings

(Surface Prep)

October 19, 2023, ... the freshly dried coating facing the coated side of the web because this is where the charge is deposited by touching the roller. ESFM reading E5wind in Figure 2 tells us if the tension nip adds a significant ...

Suppress Static Sparks to Protect Sensitive Coatings

(Static-Beat)

October 08, 2023, ... the freshly dried coating facing the coated side of the web because this is where the charge is deposited by touching the roller. ESFM reading E5wind in Figure 2 tells us if the tension nip adds a significant ...

Automating Static Control with Online Monitors

(Static-Beat)

June 11, 2023, ... can deposit significant amounts of static on web surface that touches the roller. Powered static dissipater SD8drv-out neutralizes static charges on the web surface that touched the rubber nip roller. ...

Winding: Part 4

(Web Handling)

March 05, 2023, ... of tension, nip and torque. This month we will discuss best practices for winding — addressing safety, delivered quality, process health cleaning and process controls — and will close with information ...

Prevent Opening Failures of Bags and Pouches with Good Static Control

(Bag Pouch)

February 12, 2023, ... in Figure 2 just before the chopper. These polymer nip rollers thrust the closed bags into the chopper. The chopper cuts across the web width and finished bags exit onto a sheet belt. The sheet belt commonly ...