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Why Tension?

(Magazine)

January 30, 2005, ... more. Web Lines What is the first step of most converting processes? Tensioning the web. When a slitter operator splices in a new jumbo roll, the smart ones will back tension the newly spliced web, ...

E-Clips Top 10

(Magazine)

January 30, 2005, ... extremely light tensions. With a web width to 10 in. (254 mm) and unwind/rewind diameters to 24 in. (610 mm), unit operates at speeds to 1,500 fpm (450 mpm) with roll weights to 200 lbs (90 kg). Powered ...

New Product Digest, Part 1

(Magazine)

December 30, 2004, ... new size will save in material and labor. Reduce Roll Changeover Times Converter Accessory Corp., Wind Gap, PA; 800/433-2413; handleyourweb.com Inflation toggle valve Cor-Lok airshaft option TVCLAS ...

New Product Digest, Part 2

(Magazine)

December 30, 2004, ... for high-speed slitting and winding of large-diameter rolls on small-diameter cores. The Advanced Technology SurfaStart (ATS) winds materials that can be surface-wound, including films, nonwovens, papers, ...

Who Likes Film?

(Magazine)

December 30, 2004, ... The very film properties we like in product design come back to haunt us in film handling. Nonporous means air is trapped between the web and roller. Low tension means less driving force to squeeze air ...

Lamart Approved for Phase II of NASA Project

(Archive)

December 12, 2004, ... company reported that the ultimate objective will be to develop an extremely thin, exceptionally strong, and highly flexible material for the unmanned blimp—controlled by a computer on Earth. According ...

Eliminate Pesky Bubbles

(Magazine)

November 29, 2004, ... a face roll all have been mistaken for bubbles when examined by the unaided eye. Bubbles frequently arise from air introduced during solution preparation. Try to prevent this from happening (see "Coating ...

The Harms of Harmony

(Magazine)

November 29, 2004, ... are usually a bigger problem than tension variations. For roll coating methods, a roller’s speed is a key variable to control coating thickness. For extrusion coating, precision in coating flow and web ...

New Product Digest, Part 1

(Magazine)

November 29, 2004, ... or shear blade. Slitting is provided by score, razor, or shear cutting. Options are available for perforating, rewinding, and stacking. PFFC-ASAP 409 Wind Large Rolls Davis-Standard, Pawcatuck, ...

The Gold Standard

(Magazine)

October 30, 2004, ... Warriors” trading card wrapper in the Roll-to-Roll Color Process — Prime category. The high-end image has to match a folding carton, and it's run flexo on difficult material at 150 lpi with water-based ...

Extrusion Dies

(Magazine)

October 30, 2004, ... Innovations Another key to controlling the properties of coating is gauge control — a critical factor in maintaining uniform coat weight so target coating properties are maintained with the least amount ...

Coating Rods

(Magazine)

October 30, 2004, ... and unpredictable. Some had spaces between the wire, and they would rust. In spite of these problems, rod coating was an improvement over the brushes and rollers used at the time, and the basic theory ...

PFFC Worldwide Special Report on Release Liners, part 2

(Archive)

October 30, 2004, ... and release liner. We selected a well-cured release system and chose an acrylic adhesive in which the crosslink density could be controlled. For consistency, we opted for full cure. Test panel preparation ...

Lasers Beam

(Magazine)

September 29, 2004, ... master roll), delivering unprecedented process flexibility. New Wavelengths Deliver Huge Advantages Another important recent development is CO2 lasers with alternative output wavelengths to the standard ...

Converting Industry News, Part 1

(Archive)

September 29, 2004, ... was required. The integral water-cooled chill roll was needed for both heat management and increased oxygen. "The converting system containing the GEW UV system is truly multi-functional," says Anglian ...

Heidelberg to Show New Dymatrix Die-Cutter at Graph/Converting Expo

(Archive)

September 28, 2004, ... station allow even the smallest pieces of waste to be stripped longitudinally and transversely Delivery: a sheet braking system, a low sheet drop height, cam-controlled gripper opener and sheet extractor ...

Can This Lamination Be Saved?

(Magazine)

August 30, 2004, ... web handling, the excitement usually happens at the web-roller interface. Going around a roller should be an elastic experience. When your flat web is forced around the cylinder of a roller, the curved ...

Converting Industry News, Part 1

(Magazine)

August 30, 2004, ... a div. of the SMS Plastics Technology Group. Two lines were installed originally, and a third was added recently. "What we look for is equipment that will help us produce nice flat rolls with good gauge ...

The Signs of Shear Wrinkle

(Magazine)

July 31, 2004, ... of sign language. It's saying, “Oh, I'm shifting to the right (or left) in this span,” or “Ouch, I'm shifting so much I'm wrinkling on this roller.” What does the sign language of the web look like? It' ...

Materials

(Magazine)

June 29, 2004, ... with a good balance of adhesion, tack, and cohesion, according to the manufacturer. Product's rheology is suitable for roll coating and flexo or screen printing. Photo Quality with P-S Paper Spinnaker ...