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Baggy Webs: Part 4 Minimizing

(Archive)

July 31, 2007, ... much, but some film bagginess can be greatly reduced with a heat, stretch, cool process. Why is this dangerous? You may change the characteristics of your film, such as heat stability or stiffness. I ...

Baggy Webs: Part III-Causes

(Magazine)

June 30, 2007, ... process usually has only a small amount of bagginess. Yes, if there are gross errors in the webmaking processes, if film heating, stretching, and cooling are uneven, if paper forming or moisture content ...

What's Ne

(Magazine)

December 31, 2006, ... renewable resources. Contains 34 g/L of VOCs and is said to be equally effective on cold set, heat set, and energy-curable inks. PFFC-ASAP 406 Line Sensor Does Many Things Baumer Electric, Southington, ...

the PLACE

(Magazine)

November 30, 2006, ... melt strength resins, additive packages with better heat and color stability, and advanced clarifier technology. Combining these can create films with the optics of BOPP and the flexibility of the blown ...

A Communication from the PLACE Div. of TAPPI

(Magazine)

May 30, 2006, ... the type of secondary packaging used to bundle objects together by heat shrinking a film around the objects. Typical products that are shrink wrapped today include bottled water, beverage bottles and cans, ...

A Communication from the PLACE Div. of TAPPI

(Magazine)

January 30, 2006, ... roll. Besides web guiding near the flame, the roll has the task of maintaining a constant distance between web and flame. It also removes excess heat from the system. For large web width, the burners require ...

Take Control

(Magazine)

January 30, 2006, ... tested it in liquid nitrogen for flexibility. One of the keys to processing film materials is getting total control over tension and heat. Too much of either can cause wrinkling. The envelope cannot have ...

Hurricanes Impact Whole Nation

(Magazine)

September 29, 2005, ... Following this, the cost of food and clothing will increase as the cost of transporting such goods across the country increases. As winter approaches, the cost for heating our homes and business will be ...

Without Boundaries

(Magazine)

August 30, 2005, ... a heat-reflective component in America’s first space suit. In recent years, Lamart has placed greater and greater emphasis on applications involving ultra-light composite materials. Applications include ...

New Products

(Magazine)

July 30, 2005, ... Distance between bearings on the shaft is longer, creating greater stability and reducing load on the bearings. New housing design disperses heat so bearing system runs cooler. Ceramic bearings are available ...

One Stop Shop

(Flexpack)

May 30, 2005, ... laminated with reverse-printed holography. Finally, a PE laminate layer is added for heat sealing. These pouches are produced on equipment located in the clean room, ensuring a virtually dust-free product. ...

Why Tension?

(Magazine)

January 30, 2005, ... yield or break point. Think about how a web’s break or yield stress may vary in your process. Heating polymer films will depress their elastic modulus and yield points. Drying paper and poor edge quality ...

Who Likes Film?

(Magazine)

December 30, 2004, ... if heated. Generally, films are smoother and tend to announce abrasion like scratches in a car’s paint. On the positive side, films are less sensitive to moisture (except nylon film), and their high tear ...

Eliminate Pesky Bubbles

(Magazine)

November 29, 2004, ... speed has been exceeded. In the dryer, the coating liquid is heated and the solvent evaporates. If the film temperature exceeds the boiling point, bubbles and blisters may form. As drying proceeds, ...

Analysis of Film Extrusion Problems with Flow Simulation

(Magazine)

September 29, 2004, ... several unit operations in one piece of equipment. The extruder conveys pellets, compresses them, melts them, mixes the melted material, exchanges heat with the barrel, and generates the required pressure ...

Battenfeld Gloucester Says MDO Provides Enhancements to PE; OEM Spotlights K Show Offerings

(Archive)

July 05, 2004, ... with a blown film line, has draw ratios of 3:1 and 4:1. Rather than being wound after extrusion, film is fed into the MDO unit, pre-heated, and run through drawing rolls for orientation. The set of rollers ...

Retort Pouch Conference a Hit

(Magazine)

May 31, 2004, ... The rack system also must be designed to allow good flow of the retort heating medium whether it be steam or water.” Stanley Sacharow has been in the flexible packaging industry for more than 35 years. ...

Optimum Release

(Magazine)

April 29, 2004, ... can be used on thermally sensitive substrates. Because the curing mechanism does not depend on heating the web, radiation-curable silicones are ideal for siliconizing extremely temperature-sensitive films, ...

Materials

(Magazine)

March 30, 2004, ... tolerances and avoid heat stress. WOGR Paper Ships Quickly Contract Converting, Greenville, WI; 800/734-0990; contractconverting.com Company now stocks a 50# water-, oil-, and grease-resistant (WOGR) ...

Adhesion of Coatings to Aluminum Foil

(The Place)

August 31, 2003, ... adhere well when internal stresses are decreased and additional bonds are formed. Reheating such coatings after an extrusion coating step eliminates these stresses and allows the coating to form additional ...