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Reduce Web Nip Problems

(Magazine)

January 31, 2004, ... downstream roller. Nips are notorious for subtle non-uniformities that create tracking or shear wrinkles. Both of these wrinkle mechanisms are less likely with shorter spans. Adjustable rollers can ...

Small Flexing, Big Benefits

(Magazine)

October 30, 2003, ...  Will the web re-gather on the downstream side of the flexible spiral roller when the tension and flute deflection is removed? No, remember the spreading is 50+ times the mechanical deflection. Without ...

Pay Attention to Tension

(Archive)

August 31, 2003, ... obvious value is added to your product, but once the value is in, every downstream process should be treated with equal respect. Waste created on slitter/rewinders has the same or greater value than waste ...

A Slippery Answer to Web Scratching

(Magazine)

June 30, 2003, ... strain proportional to the upstream tension. But the web strain needs to make a transition to the downstream tension, and it does this while on the roller. For many webs, the change in strain from tension ...

Pillowing Puzzle

(Magazine)

April 30, 2003, ... pillowed in the areas where there was no adhesive. Downstream, the material folded over and creased into sharp-edged folds. With constant attention and adjustment, the material could be run successfully, ...

Vigitek America to Debut at CMM

(News | New Products)

April 06, 2003, ... Europe, have long equated the Vigitek name with complete, high-quality 100 percent color inspection solutions with downstream interfaces," reports Ingatius Manning, newly appointed GM of Vigitek America. ...

Tapes & More Tapes

(Magazine)

May 31, 2002, ... that allow them to do that very well. Then, we just follow the process downstream to the printer, who follows basically the same process but on a smaller scale, and we have another product line for that.” ...

Packaging That Takes You Away

(Magazine)

May 31, 2002, ... manufactured without resins, and able to trap and print the quality required for the photographic images — were developed with Sun Chemical.” GAA adds inks were able to handle downstream process variables ...

Coating Control, Quality, & Paperboard Packaging

(Magazine)

April 30, 2002, ... COF and scuff resistance. The COF or slide angle is important for smooth processing through downstream operations, including die-cutting, gluing, and high-speed filling lines. Cartons with incorrect ...

Strand Tracking Problems on Your Slitter/Rewinder

(Magazine)

April 30, 2002, ... the result will be wrapped rollers at worst, or tracking variability at best. Tracking from roller or winding roll diameter variation The cylindricity of the downstream roller can cause a web to track ...

Mapping Your Way to Better Tension Control

(Magazine)

March 31, 2002, ... drive point is the pacer.) All the tension zones will cascade upstream or downstream away from the pacer. For each zone, identify which of three control options is employed (tension, torque, or draw ...

Products

(Magazine)

March 31, 2002, ... requiring precise web placement to downstream equipment. Models are available with hydraulic floor loading and centering. Sheeter Designed for Laminate Treater Lines Maxson Automatic Machinery Co., ...

DuPont Installs W&H Line at Euro Tech Center: Reaffirms Packaging Promise

(News | New Products)

March 28, 2002, ... highly accurate gauge control of individual layers (reducing cost and waste); Handles hard-to-process thin films; Produces better quality film rolls (for easier processing in downstream packaging ...

Coating and Laminating Special Report

(Archive)

February 28, 2002, ... metallizing: Operating margins, particularly in Europe, are severely depressed and facing further erosion. There is, however, a need for higher-added-value products created through further downstream converting, ...

The Future of Foil

(Magazine)

January 31, 2002, ... packaging solutions. Both Alcoa and Alcan removed “aluminum” from their corporate names in 2001 to emphasize the fact they are not exclusively aluminum companies any longer. Downstream integration into ...

High & Dry

(Magazine)

January 31, 2002, ... to use for this job.” Metlon had compressed nitrogen delivered daily for this application at a cost of about $200/mo. Parker Hannifin suggested an alternate solution — an air filter downstream from ...

Polymers / Laminations / Adhesives / Coatings / Extrusions

(Magazine)

October 31, 2001, ... to simulate low, continuous permeant flow. Individual permeants on the downstream side were combined to give total transmission. A shelf life study on freshly produced cereal and paperboard cartons ...

Converting Industry News

(Magazine)

October 31, 2001, ... many foil suppliers have integrated downstream and are converting value-added flexible packaging materials. Additional conclusions: The growth in foil usage is expected to occur in the newly industrialized ...

Web Guides Bring Positive Results to Negative Sleeves

(Magazine)

September 30, 2001, ... more precise, and more reliable web guide can and will have a significant impact on both production efficiencies and on downstream processes.” Adding the In-House Touch Crown converts all that film ...

Converting Industry News

(Magazine)

August 31, 2001, ... Krecke gearless, servo-driven Flexpress 16 S CI flexo press sold in Canada. The sleeve-based 51-in.-wide press, which includes a downstream gravure station, will be used with both paper and flexible materials ...