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Coating Matters | Suspensions, Dispersions, and Emulsions

(Coating/Laminating)

February 21, 2012, ... calmed the waters and provided you with a clear vision for improved coating performance. Roll-to-roll coating industry expert Mark Miller, owner of Coating Tech Service, has 14+ years of slot die coating ...

Web Lines | Test Your Web Handling Knowledge

(Web Handling)

February 14, 2012, ... tension variations across the web’s width (i.e., things would create a loose edge or center). 3. Tension Control—Name one advantage that using a dancer roller has over a tension load cell roller in a ...

Coating Matters | Down-Web Uniformity

(Coating/Laminating)

January 09, 2012, ... variation across the web. Most coating enthusiasts are familiar with the factors for cross-web coat weight control: Coating system geometry Web speed Roll speed Web tension Rheology of the ...

Slot Die Coating | The Pressure Is On

(Adhesive Coating)

December 01, 2011, ... in coat weight are controlled by regulating the pumping rate to line speed ratio. Cross-web distribution control | The slot coating die’s manifold geometry is designed to uniformly distribute the ...

Web Handling: Top 7 Causes of Wrinkles

(Web Handling)

October 09, 2011, ... your desired productivity and quality goals. Machine misalignment leads to roll misalignment. 1. Poor Machine Alignment Machine alignment is the first thing to check when experiencing web ...

Static Beat: Static Dissipation Testing

(Static Elimination)

June 30, 2011, ... nearby conveyance rollers or to machine frame elements. So, the “practical answer” is that we must decide on a “standard geometry” so we can test films and get consistent results. Figure 1 is the standard ...

Coating Matters: Slot Die Coating Fundamentals

(Coating/Laminating)

June 30, 2011, ... Products in the printed electronic fields, such as solar panels and battery technology, have pushed the limits of traditional roll-to-roll processes. For a production facility to have a technical edge, ...

Web Lines: Displacement vs Steering | Battle of the Web Guides

(Web Guiding)

May 31, 2011, ... we have two well-known web guides ready to square off and try to finally decide which is the top web guide. In one corner — weighing in at what is usually two rollers in a pivoting frame — is the displacement ...

Technical Report: Up & Running

(Slit)

May 31, 2011, ... are due to innovations that greatly reduce downtime — or non-running time — at key points in the slitting process. Major downtime causes are grouped in three areas: Loading jumbos rolls Getting ready ...

Coating Matters: Open Up the Coating Process Window

(Coating/Laminating)

April 30, 2011, ... roll form. More yield equals more money. To maximize yield, you need to know where the coated product is good and where it fails. Pushing the process to its limits and mapping the extent of these variables ...

Web Lines: Don't Flip Out - It's Just a Web Fl

(Web Handling)

January 31, 2011, ...  as the name implies - flip the web from side A up to side B up without reversing direction. (The easy way to flip a web is turn around a roller, but then you reverse from heading north to south.)  ...

Technical Report: A Rheology Lesson

(Coating/Laminating)

January 31, 2011, ... quality of your operation. Mark Miller, author of PFFC's “Coating Matters” column, is an independent consultant in the roll-to-roll coating industry and owner of Coating Tech Service, Eau Claire, WI. ...

Static Beat: How To Use Electrostatic Fieldmeters

(Static Elimination)

October 31, 2010, ... 1 shows three measurement locations: EMIDDLE, taken midway between rollers; ENEAR, taken near a roller; and EROLLER, taken directly over a roller. The electric fieldmeter reading EMIDDLE is the most ...

Web Lines: Mission-Detect Nip Variations

(First Glance)

August 31, 2010, ... of crossweb position. However, our best agents have been foiled in finding an inexpensive method to infiltrate the dangerous combat zone between nip rollers. Your mission, should you decide to accept it, ...

Teaming for Better Bag

(Bag Pouch)

May 31, 2010, ADDISON, ILL.| Rollprint Packaging Products has teamed with Pactiv Corp., Lake Forest, IL, to supply Hefty Slide-Rite slider customers with an improved ADDISON, ILL.| Rollprint Packaging Products has teamed ...

Flexpack: Slider Bags

(Flexpack)

May 20, 2010, Rollprint teams with Pactiv to supply improved filling, opening for slider customers Rollprint Packaging Products Inc., Addison, IL, has teamed with Pactiv Corp., Lake Forest, IL, to supply Hefty  Slide-Rite ...

Force Is Needed to Shift a Web

(Web Guiding)

April 30, 2010, ... good thing. What you don't want is a web that is unpredictable. Insufficient web-roller traction leads to a web that may be in transition from stick to slip, creating a wandering web. If you want ...

Web Guiding | Lateral Motion Causes

(Web Lines)

March 31, 2010, ... ranging from fairly loose (staying on the rollers) to quite tight (winding a roll with the side as nice as a phonograph record). Why isn't the web in the right lateral position? There are two strong ...

Static Beat: How To Measure Static

(Static Elimination)

February 28, 2010, A winding roll on a slitter shows signs of high static. The crackling might be enough for your customer to notice. Will this roll be a problem? When is A winding roll on a slitter shows signs of high static. ...

Wind with Less Vibration

(New Products)

January 31, 2010, The Goebel optiwind two-drum winder handles materials to 7,000 mm at a speed of 3.000 mpm. Variable drum roller geometry is said to enable rollers in The Goebel optiwind two-drum winder handles materials ...