Web Lines

MD Wrinkle Formation Causes and Cures

Published: November 01, 2001, By William E. Hawkins, Film Handling Solutions Ltd.

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

Slitting Adhesive-Coated, Low-Strength Films

Published: October 01, 2001, By William E. Hawkins, Film Handling Solutions Ltd.

Low-strength films, such PE or cast PP, sometimes are coated with an adhesive and slit into customer-sized rolls. Low-strength films do not have sharply

Belt Tracking Problems Require Careful Attention

Published: September 01, 2001, By William E. Hawkins, Film Handling Solutions Ltd.

Many wide-belt processes, whether they are made of metal, fabric, or plastic, may experience tracking problems. Some will have tracking problems even

Web Scratch Solution: Regulate Your Running Rolls

Published: July 01, 2001, By William E. Hawkins, Film Handling Solutions Ltd.

Driven rolls also may scratch the web surface, even though they are very accurately speed-controlled.

Over-Tensioned Webs and What to Do about Them

Published: June 01, 2001, By William E. Hawkins, Film Handling Solutions Ltd.

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, By William E. Hawkins, Film Handling Solutions Ltd.

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, By William E. Hawkins, Contributing Editor

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.

A Glossary of Descriptive TermsSixth Installment

Published: March 01, 2001, By William E. Hawkins, Film Handling Solutions Ltd.

Shaftless unwind/rewind stands: Basic pieces of equipment used in holding the supply roll(s) and production roll(s) on the converting machine. These stands

A Glossary of Descriptive Terms - Fifth Installment

Published: February 01, 2001, By William E. Hawkins

Here is the fifth in this series of glossary columns, intended to improve the technical communication between new and seasoned members of the converting

A Glossary of Descriptive Terms, Fourth Installment

Published: January 01, 2001, By William E. Hawkins, Contributing Editor

I have had very positive feedback from the glossary of descriptive terms that I began in the September 2000 issue (see October and December issues for

A Glossary of Descriptive TermsThird Installment

Published: December 01, 2000, By William E. Hawkins, Film Handling Solutions Ltd.

This column is a continuation of the glossary of terms that I began in the September 2000 issue for the purpose of improving communications in the converting

A Glossary of Descriptive TermsSecond Installment

Published: October 01, 2000, By William E. Hawkins, Contributing Editor

Bill Hawkins continues his glossary of web handling terms for readers who are new to the industry and for those who are not new but have questions about different versions of these terms.

A Glossary of Terms to Help Avoid Failure to Communicate

Published: September 01, 2000, By William E. Hawkins, Contributing Editor

There are many terms used to describe similar things in the converting industry. These vocabulary differences can present communication problems around

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