Technical Reports
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Product Protection
Manufacturers of perishable products are well aware that a later “sell by” date on a package can affect a customer’s decision to purchase one brand instead of another. New OPP films offer extended shelf life, and their compatibility with foods made without trans fats creates additional opportunities....
Directing Design
Because design has become the No. 1 differentiator for product innovation among manufacturers, design life-cycle management (DLM) has gained prominence as a packaging system tailored to meet the needs of CPCs and their graphic communication partners. Integrated and web-based, DLM streamlines the package design and production process—from ideation through design, packaging, and production. ...
A Bunch of Hot Air
There are reasons why your dryer could be giving you a headache. Here's what you can do about it....
Cut With Glass
Energy bills getting you down? Cut costs by switching to glass-covered rolls for corona treatment....
Can This Coater Be Saved?
What to do with an aging coater? Modernize!...
The Secret Strain
This Q&A tackles the topic of strain and why it’s the secret key to web handling....
Measuring Force
Learn what adhesion is, how it is measured, what a test really measures relative to the true adhesion between two surfaces, how adhesion affects the performance of the final laminated or multilayer product, an ideal adhesion test between two materials, and what the common T-peel adhesion test measure....
Mastering RFID, Part 2
This second of a two-part series covers development of an ESD protection program....
Mastering RFID, Part 1
This article analyzes existing ESD control standards and interprets them for RFID label converting. In addition, available static control methods in RFID converting are examined along with a case study for static control on an RFID tag insertion module for a narrow-web press. ...
Fighting Flaws
A standard coating line requires different types of equipment to function effectively to produce a defect-free product. Often the main focus of defect reduction efforts is on the major equipment and on application conditions, dryer conditions, and the web transport system....
The Design Supply Chain
The packaging industry needs a comprehensive workflow that optimizes process efficiency throughout the entire supply chain. ...
Truth or Myth?
There are many proposed theories that might influence the slide angle. We tested extensively to determine if these postulations are true....
Detecting the Edge
Web guides have evolved dramatically since their first appearance on converting lines in the 1930s. Electronic edge detectors and electric motors gradually displaced pneumatics and hydraulics as demand grew for greater accuracy and reliability, and tolerance for leaky hydraulics diminished. The earliest electronic systems were far from perfect—in particular the edge detectors were sensitive to dust and temperature swings—but they were a big improvement over their predecessors...
Film Opens New Markets
Since pressure-sensitive labels and tapes—and other materials such as stamps—have become more sophisticated, the market for these materials has been expanding rapidly. In such product constructions, it has been common practice to apply a release coating, typically a silicone-based material, to the paper liner from which the materials are peeled or dispensed....
Taming Plastics
Plastics may be flexible, brittle, or stretchable; thin, medium, or thick; clear to opaque; really easy to tear, easy to tear, tough to tear, or impossible to tear; have excellent "memory" or have no "memory"; react readily to heat or don’t react to heat at all; allow air to pass through them or actually prevent bullets from passing through them. You get the picture. So how do you cut, crease, and perforate such incredibly diverse (and perverse) materials...
Smart Converting: SPC for Webs
Although many roll goods manufacturers and converters have attempted to implement statistical process control (SPC) in their production areas, few have been successful. The reasons behind this problem lie with the basic statistical assumptions in the calculation of process capability and the use of Shewhart Control Charts....
Die Options Explained
The wide range of specialty packaging items now being ordered by customers often makes optically registered die-cutting systems the better method for cost-effective and high quality die-cutting. However, new types of dies make it important to reacquaint yourself with your options when using an optically registered die-cutting system....
Web Tension 101
Typically, tension is measured in PLI (pounds per linear inch) in the US. If you know PLI and you want to know total tension applied to the web, multiply PLI times the width of the material in inches. If you know total pounds of tension applied to the web and you want to know PLI, divide the total pounds of tension across the web by the width of the web in inches....
Eliminate Pesky Bubbles
How do bubbles form, and how can we eliminate them? Avoid introducing air into the coating fluid....
Mechanics of Tension Control, Part II
For this basic tutorial in the mechanics of web tension control, tension is defined as the force applied to a continuous web of material in the machine direction....
Extrusion Dies
Due to the intense competition in today's marketplace, extrusion-coating converters face greater challenges than ever....
Lasers Beam
Digital converting is on the verge of widespread adoption in flexible packaging applications due to compact carbon dioxide lasers....
The Rx for RH
Remember the converting problems you had last winter? Reducing them this year might be easier than you think....
Weight Control
The quality and performance of a coated product depend on obtaining the desired coating weight and maintaining its uniformity in all the rolls of manufactured product....
Optimum Release
Successful use of film liners calls for selecting the right release coating....
