Web/Roll Handling

Shaft Collar Decisions Can Be Momentous

Published: February 01, 2002

Braking moments of force affect efficiency in converting operations. Which is why... Shaft Collar Decisions Can Be Momentous

Workhorse Winders Do More Than Ever Before

Published: December 01, 2001

Winding technology has gone way beyond what it was in the '90s, says Bruce Butler, VP of sales at Independent Machine Co., Fairfield, NJ. The entire system

Wide Web Handling and the Problems It Can Bring

Published: December 01, 2001

As new film casting machines have grown in width during the past several years, so have casting machine windups. One problem that arises with wider rolls

MD Wrinkle Formation Causes and Cures

Published: November 01, 2001

MD (machine-direction) wrinkle problems (sometimes called tin canning) still plague many converters and/or film suppliers. The two main contributing parameters

Harmonic System Gets Tension Under Control

Published: November 01, 2001

Family-owned Capital Printing, based in Fairfield, NJ, serves its growing customer base the old-fashioned way, reports president and founder Vijay Patel:

Canadian-Based KT Holdings Licenses Spooling Technology to Tricon

Published: October 01, 2001

WINNIPEG, MB, CANADA--Tricon Conversion LLC, Gainesville, GA, USA, recently has been granted license to produce and sell Step-Pac film spools, says Step-Pac

Web Guides Bring Positive Results to Negative Sleeves

Published: October 01, 2001

Crown Photo Systems manufactures film negative sleeves to very tight tolerances. Web-guiding systems from BST Pro Mark are helping to keep the converter on the cutting edge.

Teknek Offering Web Guiding and Cleaning... All in One

Published: August 10, 2001

INCHINNAN, SCOTLAND, U.K. The Web Guide Clean Machine (WGCM) enables printers to clean and guide their webs simultaneously. Co. says cleaning and guiding

More Causes, More Cures For Web Scratches

Published: August 01, 2001

Last month I wrote that idler rolls (in high-speed processes) do not always turn at web speed even though they have sufficient wrap and free-turning bearings,

Slitter Savvy: The Art of Winding Good Rolls

Published: August 01, 2001

While you can't make paper or other products on the slitter/winder, it is every winder operator's job to ensure that web defects are not amplified during the slitting/rewinding operation.

Over-Tensioned Webs and What to Do about Them

Published: June 01, 2001

Webs are often tensioned beyond their elastic limit in specialty-type processes such as metallizing. Usually, the high tension is in a zone where web

WEB SOLUTIONS

Published: May 01, 2001

The key to a successful and low-cost upgrade is to have a competent engineering analysis done of all the critical machine interactions…

A Proposal for Spreading Base Web During Melt Extrusion

Published: April 01, 2001

Melt extruded resin polymers on cloth and other webs sometimes result in transverse direction (TD) curl of the laminate. And this curl often causes poor roll formation when the base roll is slit into large-diameter, narrow-width slit rolls.