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LAB/PILOT/TECHNICAL FACILITIES DIRECTORY

(Uncategorized)

August 31, 2013, ... line speed; any range of thickness; dryer type: single-side impingement; 1 zone; dryer capacity: extreme dryer good to ~140 deg F surface; solvents: water; QC: peel and coat weight testing COATING TECHNIQUES ...

Rheology, Math, and Coating Equipment Design

(Coating/Laminating)

August 30, 2013, ... area of restriction (slot die lip opening). Once the fluid distributes on the substrate the leveling effects, surface energies, and tensions of the fluid and substrate take over to develop the final coated ...

Show Preview | CPP EXPO and PRINT 13 Share a Stage

(Print)

August 07, 2013, ... (natural feel), 100% recycled NAUTILUS high-speed inkjet, BIO TOP3 high-speed inkjet and DNS enhanced color inkjet, which is Mondi's first high-speed inkjet paper with a pigment-coated inkjet surface. As ...

Show Preview | What’s Behind the Curtain at Labelexpo Europe 2013

(Label/Tape)

July 29, 2013, ... of film labels, and ensures reliable adhesion to the bonded surface. The company will present a novel UV-curing solution for UV-curable pressure-sensitive hot melts. A collaboration with lamp manufacturer ...

Eliminating Boundary Layer Air During Winding

(Web Handling)

July 15, 2013, Eliminate boundary layer air  while winding rolls of film, in most cases, by using a lay-on roller. For coating and extrusion technology, vacuum boxes or electrostatic pinning can sometimes–though infrequently–be ...

Coating Matters | Fluid Flow Phenomena

(Coating/Laminating)

May 14, 2013, ... of the interfacial tensions between a fluid, the displaced air, and the substrate being contacted. Whether the fluid wets the surface of the substrate and spreads, or de-wets and retracts, is determined ...

Web Lines | Winding Process Fundamentals, Pt. 3

(Web Handling)

May 08, 2013, ... outer roll layers; compression of surface roughness features of the product; density increases in the product; air escaping the roll; and lateral flow of any layers (such as adhesive layers in sticky tape ...

Basics: What Are the Key Process Variables of Winding?

(Web Handling)

May 02, 2013, ... with two drum surface winders. Tension is the web tension upstream of the winder. Nip is the normal force between the winding roll and the surface drums. But what is torque? Torque is the ft-lbs (or ...

REM Mfg. Slitter Processes Narrow Webs

(Narrow Web)

April 07, 2013, ... center surface rewinding for processing webs at speeds to 1,000 fpm with tension ranges down to 0.25 PLI. Slit widths are ¼ inch minimum. Available with rewind diameters to 24 in. Programmed differential ...

Bringing Theory into Focus

(Coating/Laminating)

April 04, 2013, ... (rheology, viscosity, surface tension, etc.). But what is important? What can you use daily as an applications individual in the fluid coating world? So let’s start with the most important concept to ...

Davis-Standard Upgrades Coating & Pelletizing Lab

(Coating)

February 22, 2013, ... capabilities with center, surface center, and slip core winding modes as well as in-line shear slitting. The liquid coating lines are equipped for trials using different coater arrangements, offering customers ...

Web Lines | Winding Process Fundamentals, Pt. 2

(Technical Reports)

February 18, 2013, ... factor of both nip roller radius and winding roll radius). To wind a roll with constant entrained air per layer (with a goal of controlling entrained air to less than the surface roughness of the product), ...

Show Preview | ICE USA 2013

(Trends/Management)

February 04, 2013, ... the film. Allows 100% coating coverage for irregular surfaces such as textured foils. Applies coat weights as low as 1 GSM, dependent on adhesive, and provides precise accuracy for a cross web distribution ...

Web Lines | Winding Process Fundamentals, Pt. 1

(Technical Reports)

January 13, 2013, ... function of two variables: center torque and surface nip load. Understanding how applied center torque (in force x radius) becomes tension is easy. Torques are a force times a distance. Reversing this ...

The Role of Energy in Coating

(Coating/Laminating)

January 09, 2013, ... many factors come into play – chemistry of the fluid, surface tension of the substrate, curing conditions, slitting requirements, tension control of the web, etc… All these factors are interactive and ...

Static Beat | High Static on Unwinding Rolls

(Static-Beat)

October 30, 2012, ... polar charge is positive charge on one surface of the web and an equal amount of negative charge on the other surface. To see what is going on, let’s go back to the operation where the roll is wound ...

Web Handling Q&A on Lateral Web Movement

(Web Handling)

October 18, 2012, ... to how a web tracks if its angle of approach is not parallel to the roller's surface vectors. The asymmetric baggy web presents a slight curvature at the point of contact leading to the next portion of ...

Web Lines | Why Avoid Nips?

(Web Handling)

September 24, 2012, ... created by gravity. Similarly, the web wrapped around a roller has tension pulling it down to the roller’s surface creating friction without nipping. More tension, more wrap angle, and higher coefficient ...

Winding Technology | Now Directly in the Drive

(Controls)

September 19, 2012, ... a surface winder, but is the more effective of the two, as it is a much simpler version, at least from a mechanical perspective. The standard application supports various control techniques, including ...

WebHandlersQuiz #17: Winding at Constant Torque

(Web Handling)

July 26, 2012, ... distance (e.g., lbs-in., N-m) to the center of the winding roll. This torque is converted into tension based on the distance, which is the radius, to the outside surface of the winding roll. The actual ...