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Slot Die Coating Technology

(Mark's Coating Matters)

July 16, 2014, ... supply of coating fluid and variations in coat weight are controlled by regulating the pumping rate to line speed ratio. 3. Cross-web distribution control. The slot die’s manifold geometry is designed ...

Web Lines | The Case of the Missing Pacer

(Technical Reports)

July 07, 2014, How can a system with only two slipping torque elements control speed? I recently visited a converter that had a rewinder with no apparent direct-driven pacer roller. The unwind had brake torque control, ...

Web Lines | Wrinkling?

(Web Handling)

May 18, 2014, ... They can look at your product geometry, mechanical and frictional properties (of your rollers), roller factors, web path geometry, and process conditions (speed/tension), then predict wrinkles from roller ...

Show Preview | INFO*FLEX Offers Gold Mine of Solutions

(Trade Shows)

April 10, 2014, ... GTT anilox roll with patented open slalom ink channel geometry that allows the ink to flow precisely onto a printing plate., especially in the case of expanded gamut printing. Also showing UltraCell and ...

Web Lines | War on Bagginess

(Web Handling)

February 26, 2014, ... struggle with. Due to many factors—including the lack of good bagginess quantified measurements, need for feedback from roll unwinding measurements/observations (usually at customer processing), and complexity ...

Slot Die DOs and DON'T

(Mark's Coating Matters)

January 30, 2014, ... through the ideal scenario to reduce maintenance costs to a roll-to-roll manufacturing plant. Training Whether it is proper coating technique, handling, disassembly, or cleaning, maintenance crews ...

Static Beat | Static Dissipator Neutralization Efficiency

(Static-Beat)

January 02, 2014, ... controlling static on webs and sheets. Static dissipators are either “passive” or “active.” Passive dissipators, like static brushes, tinsel, or ionizing cords, are less expensive, while active dissipators, ...

Static Dissipator Performance

(Static-Beat)

December 23, 2013, ... of cylinders that touch the tips of the dissipator pins and also just touch the idler rollers. Figure 10. Install static dissipators to maximize the distance LION that the web is exposed to corona ...

Coating Matters | Hot Melt Coating Technology, Part 2

(Coating/Laminating)

November 11, 2013, ... of the adhesive. Process considerations include both the technology and technique. The major contributing factors in the process technology include the coating head, the backing roll, the adhesive delivery ...

AIMCAL Tech Meeting Honors Excellence

(Coating/Laminating)

November 04, 2013, ... as thin as 15 microns in sheet and roll format Speeds from 1 m/min to 300 m/min are possible Performance in a high vacuum environment and without silicone is possible to provide significant yield improvements ...

Static Beat | Should Static Brushes Touch?

(Static-Beat)

November 03, 2013, Should static brushes or ionizing cords touch webs or rolls to neutralize static? Static brushes and ionizing cords are passive dissipators used to neutralize static charge on webs, polymer covered conveyance ...

Visualization for Improved Coating Performance

(Mark's Coating Matters)

October 17, 2013, ...  As an example, I have seen a fluid be coated against a quartz backing roll, where the camera is located inside the roll and captures an image of the fluid as it exits a slot die. Even without this unique ...

On Print | Impact of 3-D Printing on the Converting Industry

(On Print)

September 26, 2013, ... two-dimensional world. Let me explain. The term 3-D printing often covers all layer-by-layer, computer-controlled additive manufacturing methods within a fixed volume defined by the width and length ...

Future Design Redesigns Air Ring

(Flexpack News)

September 21, 2013, ... and processing parameters in the blown film industry.  Among the reported benefits are improved width control, bubble stability, finished roll geometry, and faster running speeds. Rings are designed ...

Coating Matters | TWOSD

(Coating/Laminating)

August 19, 2013, ... Die, is a coating technique that has some unique advantages. The concept behind TWOSD is that when a slot die is engaged with a precision backing roll you have a metal roll and a metal slot die that ...

Web Lines | Winding Process Fundamentals, Pt. 3

(Web Handling)

May 08, 2013, In Part 3 of this four-part series, web handling expert Tim Walker answers the question: How do dimensional changes within a roll (e.g., compression) change roll strains and stresses? In Part 3 of ...

Show Preview | ICE USA 2013

(Trends/Management)

February 04, 2013, ... and patented Instant Diameter Change System. The machine automatically cuts and advances the cores with precise accuracy within +/- 0010 in. All settings can be controlled by an intuitive LCD touch panel ...

Coating Matters | It’s a Turbulent World

(Coating/Laminating)

January 10, 2013, ... surface energy, and viscosity of the individual layers are controlled to maintain distinct thicknesses and separation. Now that you can grasp the fluid flow versus extrusion difference, what can be done ...

Coating Matters | Understanding Rheology

(Coating/Laminating)

October 01, 2012, ... is in motion, the best thing is to keep it in motion until you have the final shape you want. Polymers move at a speed and in a direction controlled by the force you apply. So, by a series of contractions, ...

Coating Matters | Battery Coating Technology

(Coating/Laminating)

March 25, 2012, ... engineer needs to think about whether a direct coating method, with a precision roll, is ideal or whether a free span coating method, without a roll, will provide the most process capability. The assembled ...