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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 ...

Measure Pressure with Thin Film

(Magazine)

April 30, 2003, ... common applications where pressure-sensor films can benefit a user involve monitoring roller contact (nip) pressure and heat sealing jaws. The technology in this product can measure pressure inexpensively ...

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 ...

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 ...

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   ...

Takes on Tapes, Labels & Liners

(Converting Perspectives)

January 14, 2024, Tapes, labels and liners individually, and as they overlap, represent so many facets of converting and equipment, and inevitably miss some of the latest. By Susan Stansbury, Industry Consultant Tapes, ...

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 ...

Rollem International Shares Interactive Equipment at Printing United

(News | New Products)

September 26, 2023, ... for make-readies and accessory manipulation. With industry leading belt speed, quick set-ups and the ability for modular expansions, the Chameleon delivers cutting edge solutions for converting of direct ...

Winding: Part 5

(Web Handling)

April 16, 2023, ... on larger cores. Reduce web temperature entering the winder. Increase topography on a film to introduce air into the roll. Ask for different chemistry. Try different lay on nip roll covers and nip load. ...

Winding Part 5: Solutions for Common Wound Roll Defects

(Converting Expert)

April 03, 2023, ... Reduce web temperature entering the winder. Increase topography on a film to introduce air into the roll. Ask for different chemistry. Try different lay on nip roll covers and nip load. Consider winding ...

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 ...

The Role of Corona in Flexible Packaging Lamination Requires an Understanding of Filmic Substrates

(Surface Prep)

January 29, 2023, ...  Therefore, wetting is vital for good lamination. It requires the correct level of Corona treatment, correct viscosity of the adhesives (both in solvent and solventless applications) and correct nip temperature ...

World Leader in Defect Marking

(Equipment/Machines - Converting)

January 23, 2023, ... supported by a roller. “Nipping” an already dispensed label to a moving web in this fashion was a game changer. Novation’s AF2 WebFlagger was marketed at that time as “The First WebFlagger that Actually ...

Maintaining Static Control Three Ways to Lock in Good Performance

(Surface Prep)

January 01, 2023, ... even when a system component fails. For example, just upstream of the winding roll in Figure 1 is a tension control nip and a tacky roller web cleaner. In this section of the machine, there are four static-charging ...

Winding: Part 2

(Roll Handling)

December 18, 2022, ... for calculating average roll density. Next month we will discuss the important of tension, nip and torque for your winding process. About the Author Neal Michal of Converting Expert is a well-known ...

Wound Roll Mechanics: Part 2

(News | New Products)

December 12, 2022, ... 5 provides both US and SI units for calculating average roll density.  Next month we will discuss the important of tension, nip and torque for your winding process.  ABOUT THE AUTHOR Neal Michal ...

Discovering the Correct Covering and Coating

(News | New Products)

October 30, 2022, ... stakes are raised, as this roller surface has limited life and performance vs, chrome, ceramics, or hardened steel. These coverings are vital for coating, laminating, embossing, or high nip applications ...