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Web Handling: Top 7 Causes of Wrinkles

(Web Handling)

October 09, 2011, Web wrinkling during converting can come from a variety of sources--sometimes multiple sources. Thus, pinpointing the exact cause and cure is not always easy. In fact, it is often a process of trial and ...

Web Lines: Is Wound Roll Pressure Greater Than Tire Pressure?

(Tension)

June 30, 2011, ... psi (or 3 bar or 300 kPa) since atmospheric pressure adds 14.5 psi (or about 1 bar) to every reading. This differential reading is called the gauge pressure. Pressure in wound rolls comes from web tension. ...

Web Lines: Web Length per Roller Revolution=?

(Editorial)

September 30, 2010, When a roller rotates, how much web does it feed forward per revolution? At first, the answer seems obvious: It feeds forward a length of web equal to When a roller rotates, how much web does it feed ...

Web Lines: Mission-Detect Nip Variations

(First Glance)

August 31, 2010, How To Detect Nip Variations To Create a Uniform Web Product “Good morning, Mr. Phelps. Many converting processes rely on uniform nip pressure to create a uniform product (and satisfied customer) independent ...

Web Lines: How To Control Roller Nips

(Web Handling)

July 31, 2010, ... want to take the need for skill out of the repeatability of the compression. Nipped rollers, used in many processes, rely on high pressure created by rolling a web between two pinching rollers. In nipping ...

Narrow Web & Label Reporter

(Narrow Web)

October 31, 2009, IMDA Award Winners Break Out of the Mold TEMPE, AZ | The In-Mold Decorating Assn. announced the winners of its third annual Awards Competition on October IMDA Award Winners Break Out of the Mold TEMPE, ...

Use IR Light To Measure Thickness

(New Products)

October 31, 2009, ... auto-focus capability that ensures technology is well suited for webs of blown film production where flutter is found. Facts | 330-928-2332 | www.facts-inc.com Circle 423 or visit www.freeproductinfo.net/pff ...

Get a Grip on Your Web

(Tension)

October 31, 2009, Whether a converter needs to isolate tension at various zones in a web line, reduce web slippage over a roll, or pull the web at increased speeds and Whether a converter needs to isolate tension at various ...

Measure Film Thickness Accurately

(New Products)

October 31, 2009, ... in lighting, humidity, temperature, and web pass-line height and flutter. Proprietary optical bench reduces sensitivity to light diffusion. Gauge is said to be equally adept at accurately measuring clear ...

Sleeve Open-Platform Web Offset Presses

(News Eclips)

July 20, 2009, ... carton products are possible with option to die-cut and strip with a rotary die-cutter. Available in web widths of 20.5 in., 30 in. and 36 in. equipped with four form rollers and running at 1,300 fpm. ...

Web Measurement Carrier Holds Five Sensor Types

(News Eclips)

June 07, 2009, Indev Precision Measurement Gauging introduces Smart Frame for continuous web measurement at a lower cost. WOODRIDGE, IL | Indev Precision Measurement Gauging introduces Smart Frame for continuous web ...

Web Exclusive: Flat Die Technologies Emerge as Keys to Innovation in Solar Electric Systems

(Archive)

May 13, 2009, ... will be complex, multilayer products whose manufacture will call for high-precision systems for both film extrusion and web coating. Development of such flexible or thin-film solar systems represents ...

Web Exclusive: Matching Laser Cutters to Labels

(Archive)

April 01, 2009, ... machines for label applications can achieve web speeds as fast as 90 mpm with cut-to-print accuracies that far exceed earlier generation technology. However, some new features for laser cutting machines ...

Web Exclusive: Slitting Film

(Archive)

November 11, 2008, ... all aspects of a machine must be controlled in unison. If one element of control fails, a flawed product and/or high levels of costly waste will occur. Effective web control is essential. For instance, ...

Web Coating: Process Characterization

(Coating/Laminating)

October 31, 2008, The web coating process has about 15 major components, and each of these components, in turn, has many hardware subsystems. All these hardware subsystems The web coating process has about 15 major components, ...

Web Exclusive: Are Sleeves Ready for Narrow Web?

(Archive)

July 31, 2008, ... years ago due to their numerous advantages. The integration of sleeve technology in narrow web flexo presses has been a topic of discussion for many years. However, only individual label printers have ...

Web Lines: The Spin on Idler Roller Testing

(Web Lines)

May 31, 2008, ... such as extra-low tension, low wrap angle, low web-to-roller COF, or a reduced traction coefficient due to air lubrication, then keep reading. Before we can talk about improving idler rollers, we need ...

Narrow Web & Label Reporter

(Narrow Web)

March 31, 2008, ... film on a wide range of narrow web, flexible packaging materials using aqueous adhesive. The off-line system can be used for both digital and conventionally printed webs. Company says a rotary gravure ...

Narrow Web & Label Reporter

(Magazine)

November 30, 2007, ... business management software for flexo narrow web label printers and converters now connects users seamlessly with UPM Raflatac, Fletcher, NC. The Label Traxx system works via Raflink Direct Link, which ...

Baggy Webs: Part 4 Minimizing

(Archive)

July 31, 2007, What does minimizing a baggy web mean? Two things. First, we would like to minimize the level of bagginess in our webs. Second, we would like to minimize the waste associated with running the inevitable ...