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Coating Matters | Film Split Defects

(Coating/Laminating)

June 28, 2015, ... this decision made? The Reynolds equation governs this decision:   P/ΔX = 12µ[((U2+U1)/2)/H2 – Q/H3] P = pressure X = distance µ = viscosity U1 & U2 = roll speeds Q = volumetric flow rate ...

Looking Behind the Curtain of Coating

(Coating/Laminating)

May 29, 2015, ... flow rate μ = viscosity U/V U = web speed V = impingement velocity If the U/V ratio is too low, disintegration of the curtain occurs (similar to a low Weber number). At a balance point between ...

DuPont Awards | Salsa Container Blends Rigid and Flexible To Earn 2015 Highest Honor

(Flexpack)

May 26, 2015, ... features that address known market needs for functionality and consistent dosing. With traditional mascara tubes, the high viscosity mascara tends to accumulate along the inner wall, becoming unreachable ...

Coating Matters | The Effects of Viscoelastic Behavior, Pt. 1

(Coating/Laminating)

May 25, 2015, When coating a fluid, consideration of the rubbery behavior needs to be given with the shear rate versus viscosity data If you'd like to hear from Mark Miller's own lips rather than read his column, ...

On Print | UV/EB Inkjet for Food Packaging

(On Print)

May 11, 2015, ... Offset inks have high viscosity, so monomers can be very large, which, in turn, means any migration will be slow, and vapor pressure is low, minimizing odors. Large monomers can have multiple reactive ...

Coating Matters | Pressure-Sensitive Adhesive Coating

(Coating/Laminating)

April 20, 2015, ... to coating. This also provides the basis for understanding the fluid flow phenomenon and how it will interact with the coating technique. While many coating techniques require a specific viscosity range ...

Dow Chemical Adhesive Aids Fast Compliance

(Coating/Laminating)

March 29, 2015, ... efficiency through enhanced machinability and wettability at high web speed thanks to its lower initial viscosity. For partners within the packaging value chain, adhesive reportedly enables a lower inventory ...

Conflicting Flow in Coating

(Coating/Laminating)

March 15, 2015, ...  Coating with a self-metered system is a study of flow dynamics where we are fighting viscous forces. Depending on where the math is being applied, one force rises over another in combination with viscosity. ...

Barrier Resins | Properties, Processing & Handling of EVOH, Pt. 1

(Flexpack)

February 01, 2015, ... in EVOH extrusion system should be minimized to prevent polymer discoloration, gels, fish eyes, and significant changes in melt viscosity. Minimizing residence time can be accomplished by using properly ...

TRESU Offers Flexo Solution for Sanitary Products

(News | New Products)

January 23, 2015, ... unit includes company’s F10 iCon ink supply system with automatic cleaning, to constantly feed the printing units and maintain optimum viscosity, temperature, and pressure. Sealed, pressure-controlled ...

Coating Matters | Pump Technology

(Coating/Laminating)

January 12, 2015, ... pump that they come in contact with. When considering the pump technology, remember to look at the critical factors of the fluid (solids content, solids size, shear effect, viscosity, and solvents). A ...

Coating Matters | Multi-Layer Coating

(Coating/Laminating)

December 11, 2014, ... what happens downstream. An intermediary layer may need to be used as a barrier layer to avoid unwanted diffusion. Viscosity. Viscosity differences between layers affects the flow variation recognized ...

Stepwise Process Fluid Coating

(Coating/Laminating)

November 17, 2014, ... work hand-in-hand to develop the final structure of the solidified coating. Capillarity works to level the fluid quickly when the viscous forces control (low viscosity) and coating thickness is small. ...

Fighting Viscous Forces to Improve Fluid Coating Success

(Coating/Laminating)

September 17, 2014, ... main ingredient to understanding fluid flow! For the equations that we are going to discuss, the nomenclature is- • Viscosity = μ • Substrate speed = U • Density = ρ • Wet film thickness = H ...

TRESU to Highlight Ink Supply System at Labelexpo

(News | New Products)

August 24, 2014, ... systems, and plate cleaners.  The F10 iCon ink supply system automates ink pressure, viscosity, and temperature control in flexo presses, reportedly ensuring a constant, accurate ink density on the printed ...

Particles in Fluid Coating

(Mark's Coating Matters)

August 11, 2014, ... and viscosity shifts. Each issue is recognized as a defect in coating and requires a unique adjustment to overcome. Particle Settling. The residence time of the particle in suspension needs to be understood ...

Show Preview | Labelexpo Americas 2014 Enhances Focus on Package Printing

(Label/Tape)

August 04, 2014, ... to Improve Ink Flow TRESU Group (Booth 1308) will highlight its F10 iCon ink supply system that automates ink pressure, viscosity, and temperature control in flexo presses. This ensures a constant, accurate ...

FTA Online Course Covers Inks

(News | New Products)

July 26, 2014, ...  Seven modules explore the following topics: • History of ink • Ink systems • Ink types and classes • Ink characteristics and composition • Ink prep • Ink transfer • Strength/Opacity/Viscosity/pH ...

Slot Die Coating Technology

(Mark's Coating Matters)

July 16, 2014, ... Increased heat control promotes uniform fluid viscosity contributing to uniform cross-web distribution 4. Improved waste management. All of the coating fluid is applied to the substrate via the positive ...

Signature Flexible Packaging Operating New 10-Color Press

(News | New Products)

July 07, 2014, ... in-line viscosity control with InkSpec viscometers, auto-impression setting, and click-and-drag zero-waste registration along with numerous quality control options such as a 100% inspection camera and ...