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Web Lines | A Rant from Tim Walker

(Web Handling)

December 04, 2011, ... control panel with pressure gauges and motor currents. That is so 1970s. When I ordered the equipment, we talked about my winding tensions in force and nipped processes in terms of nip load (pounds or ...

Static Beat: Beat Winter Static

(Static-Beat)

November 22, 2011, ... is no higher than necessary. Maintain film tensions within the range for good conveyance to minimize static. If the tension is too high, the contact pressure between the film and roller surfaces is higher ...

Winding Film: How COF Properties Affect TNT

(Winding Unwinding Rewinding)

October 17, 2011, Your ability to apply tension/nip/torque winding principles to produce the desired roll hardness is affected by the film’s layer-to-layer coefficient of friction properties Your ability to apply tension/nip/torque ...

Web Lines: Take the Laminator Quiz

(Coating/Laminating)

October 16, 2011, ... and easily viewable? 3 pts. 3. Do you control pre-laminating tensions of input webs to match elastic strains? 10 pts. 4. Do you control downstream tension to a set point nearly equal to the sum of ...

Web Handling: Top 7 Causes of Wrinkles

(Web Handling)

October 09, 2011, ... due to vibration, improper machine or roller maintenance, tension over time, or in colder climates, even freeze-thaw conditions that can shift plant floors. Poor alignment between rollers ultimately ...

Plotting Shear Wrinkles

(Web Lines)

August 21, 2011, ... can be a great starting point (and you don’t need a fast computer or advance modeling aptitude). For the single span shear wrinkle test, you need the following: 1) A web line where you know web tension ...

Pet Food Packaging: Evolution, Revolution & Innovation

(Flexpack)

August 18, 2011, ... thrust of the marketing message for both is freshness and nutrition retention compared to canned pet food and higher protein content than dry foods. The extension of a familiar food packaging technology ...

NEWS CLIPS

(Magazine)

July 31, 2011, ... Oberösterreichische Nachrichten, the daily newspaper in Upper Austria. The Montalvo Corp., Gorham, ME, offers a free data sheet for the new S4 Digital Tension Controller, including photos, working ...

Best Papers Named At IWEB Conference

(Web Handling)

July 31, 2011, ... Emral Ltd., for “Web Tension Variations Caused by Temperature Changes and Slip-On Rollers” Jerry Brown, Essex Sysems USA, for “The Use of Conservation of Mass in Modeling Lateral Behavior in Moving Webs” ...

Web Lines: Wrinkling of Foils

(Flexpack)

July 31, 2011, ... buckle, so they need high web-roller friction (from friction, tension, and width) to apply the load needed to make a wrinkle. The stiffness of foils means that misalignment effects quickly create large ...

Static Beat: Why Static Is Worse at High Speeds

(Static Elimination)

July 31, 2011, ... materials, surface roughness, contact pressure, and slip. Slip increases as the film speed increases. In Figure 1, the film tension difference across the roller is caused by bearing drag. This tension ...

Surface Energy Matchmaking

(Coating/Laminating)

July 31, 2011, ... information for both the fluid and the substrate. The manufacturer typically provides this in the product literature, or a test facility can determine the fluid surface tension. For the substrate, dyne ...

Experience Speaks: Myron Geiser

(Trends/Management)

June 30, 2011, ... are hundreds of converters with similar equipment to what Capri has, so the key to growing is being a supplier that customers trust as an extension of their business. How do you handle a difficult ...

The Holy Grail, Six Tips for Winding

(Web Handling)

June 29, 2011, When winding film, the Holy Grail is to achieve round, hard rolls without defects. These areas require adherence to consistently achieve success. 1. Be sure the web material is as flat as possible  ...

Winder Targets Mid-Range Markets

(Winding Unwinding Rewinding)

May 31, 2011, ... system, and programmable tension and nip control for winding rolls directly off the process line. The slitter mandrel, spreader roll, core accelerator, drum, primary arm indexing, and transfer knife positions ...

Technical Report: Up & Running

(Slit)

May 31, 2011, ... slitters can integrate more automated features and functions. Automatic knife positioning, core positioning, and closed-loop tension are now more common on standard slitters. Tremendous gains in productivity ...

Capacity Needed

(Slit)

May 31, 2011, ... control system and an integral edge-trim extraction system. The pneumatically controlled braking system is said to provide accurate web tension control, and a digital edge-guide system controls lateral ...

BOPP Producer Needs Nine

(Slit)

May 31, 2011, ... piece of the investment and are said to offer precise control of web and winding tension. The Atlas CW800 film slitter uses the same technology as the larger Atlas primary film slitters with a maximum ...

Slit Thin-Gauge Films & More

(Slit)

May 31, 2011, ... are placed before and after the slitting zone to assure isolation of tension zones. Web tensions as low as ¼ PLI are achieved using driven unwind and independent rewind drives with load cell feed back ...

Slit Many Substrates

(Slit)

May 31, 2011, ... film, foil, and laminates, it is available in widths from 1,000-1,800 mm. Vacuum roller for tension isolation point means no nip rollers or S-wraps. Ashe America | 802-254-0200 | www.ashe.co.uk  ...