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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 ...

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 ...

Do Conductive Rubber Coverings Help Reduce Static?

(News | New Products)

May 09, 2022, ... return to origin. The volume of charges produced can be affected by factors such as web tension, nip pressure, web wrap angle, speed, rubber hardness, and rubber surface roughness. These factors all ...

Taking Control of Static

(Surface Prep)

February 13, 2022, ... can increase static. Operating Setpoints Static increases with higher nip pressures, higher web tensions, touching polymer or rubber rollers, moving over spreader rollers, and with higher line ...

Thermal Transfer Core Design and Performance in Today’s Markets

(Web Handling)

January 23, 2022, ... coating will determine the speed, efficiency and quality of the finished web substrate. Most applications nipping by nature require a hard face roller against a rubber or elastomeric covered roller. This ...

Rol-Tec Continues to Grow with Completion of Plant Expansion

(News | New Products)

October 07, 2021, ... customer art files direct to PDF without manual art manipulation. This speeds production time, reduces file art charges, and prevents potential file transfer errors.” The company’s expanded metal machining ...

Web Considerations for Today’s Flexible Packaging

(News | New Products)

May 16, 2021, ... lines. Web spreading Web spreading devices before the nips, before critical processes such as coating and laminating, and just before winding are mandatory for high-quality processes. Using the right ...

Advantages and Benefits of Conductive Rubber Coverings in Critical Roll Positions

(News | New Products)

February 07, 2021, ... the charges cannot get back to where they came from. The volume of charges produced can be affected by factors such as web tension, nip pressure, web wrap angle on the roller, web speed, rubber hardness, ...

A Remedy for CD Buckles

(News | New Products)

July 23, 2020, ... more tension or strain and lose less. Starting with more is easy, more center winding torque and / or more nip-induced tension. This might lead to other defects high tension defects, but your CD buckles ...

Static Control for Flexographic Printing

(Flexography)

July 05, 2020, ... cause wrinkles and print defects. The Entry Roller presses the web against the CI Drum surface to prevent these wrinkles and defects. As with any nip roller, the Entry Roller can deposit large amounts ...

Coating on Trial

(News | New Products)

May 05, 2020, ... otherwise damage will occur at the coating applicator or in the dryer. Problems can also arise when the web travels over rollers, or for laminating, when the film enters a nip or at the marrying together ...

BOBST Launches NOVA SX 550 LAMINATOR

(News | New Products)

April 27, 2020, ... nip for quality and process inspection without stopping the machine. NOVA SX 550 LAMINATOR standard web widths range from 1000 to 1500 mm - others are available on request – and speed is up to 450 m/min. ...

Static Control for Adhesive Lamination

(Static-Beat)

August 14, 2019, ... charging. Then, use best-practice static control to neutralize static from each source. Figure 2: Adhesive laminator with five static controls The multi-layer web is formed at the lamination nip ...

Cut-to-Length Solution: AZCO Corp.

(News | New Products)

May 09, 2019, ...  Dual cantilever design brake unwinds feed out the release liners from two rolls, and they are then joined to the top and bottom of the extruded material.  The material travels through a set of nip rollers ...

Web Tension Control Fundamentals

(News | New Products)

January 24, 2019, ... is a driven steel pull roll with a pivoting rubber covered nip roll.  S-Wrap driven roll sections can be employed but consideration must be given to the frictional qualities of the roll surface to insure ...

Maxson Web Splicer Is Automatic

(Carton Box)

November 14, 2017, ... thereby allowing higher speeds to be maintained during the splicing process. Pneumatically loaded rollers create a high pressure rolling nip said to make a secure splice, while the process line is approaching ...

Static Beat | Control Static on a Winding Roll

(Static-Beat)

November 07, 2017, ... To effectively control static, keep track of which web surface carries static charges. Figure 1. This winder has a tension control nip, a dancer (float roller) to control the winder motor, and a lay-on ...

Medical Patches | Faustel Meets Challenge of Hydrogel Pad Production

(Coating/Laminating)

October 23, 2017, ... Up Katecho also added a custom-designed pneumatic manipulator from Iowa-based Positech Corp. to remove the heavy rolls from the winder. The unit’s arm positively locks onto the rewind shaft so operators ...

Web Lines | Action Plan for CD Buckles, Part 1

(Web Handling)

March 05, 2017, ... of torque, nipping, and tension taper). Too much tension causing CD buckles is strongly tied to core stiffness or collapse. Winding many layers onto a core can create high pressures, enough to significantly ...

AGL Laminator Suited for Wide Format

(Coating/Laminating)

February 05, 2017, ... maximum productivity, reliability, and return on investment. With company’s proprietary nip roll design and heating and nip pressure design, laminator is said to solve the problems associated with poor ...