Hot Melt - 50 Years and Going Strong!
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Over 50 Years ago - hot melt adhesives were introduced to the packaging industry.
Hot Melts revolutionized the packaging industry by allowing for the rapid closure and sealing of containers. Packaging companies using case erectors and sealers, as well as cartoning machinery, quickly embraced hot melt adhesives because of the obvious production benefits.
Hot Melt adhesives used in packaging are essentially low temperature plastics that set quickly with the loss of temperature. Most packaging hot melts bond well to paper based substrates used in packaging such as corrugated.
Since their introduction over 50 years ago Hot Melt adhesives for packaging have improved dramatically as have the systems used to apply them. Hot Melts used in packaging are now available in many price ranges, sizes, open times, set times, softening points and viscosities.
Systems to apply hot melts in packaging are also available in a range of configurations including hot melt handguns, rollcoaters, benchtop extruders as well as totally automatic extrusion, swirl spray systems and fiberization systems. Most of these systems precisely control the temperature of the hot melt - allowing for their precise application.
Large and small packaging companies from Kraft, Nabisco, Anheuser-Busch and Coca-Cola, to your local custom packaging and fulfillment house, use hot melts as integral part of their package assembly process.
Consider hot melt adhesive to seal your next package.
Related Articles:
Why Does Hot Melt Fail to Bond Corrugated?
Hot Melt Use Reduction - Adhesive Savings in Packaging - Case and carton sealing with hot melt
Anatomy of an Automatic Hot melt System used in Packaging
Benchtop Handsfree Hot Melt Units used in Packaging
Packaging with Hot Melt Handguns 101
For more information call or email Pierce Covert,
Glue Machinery Corporation
1(888) 202-2468
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Packaging with Hot Melt Handguns 101
Friday, 25 February 2011 10:32
Pierce Covert
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Hot Melt adhesives are used worldwide to erect and seal paperboard cartons and corrugated cases in packaging.
Hot Melt Handguns are used in the most basic packaging applications - and are the tools of choice to apply hot melt adhesive. They are simple, effective tools as they can be used to apply hot melt patterns that quickly form permanent bonds.
Most companies using hot melt handguns first opt for low cost, low power hot melt stick guns. In many cases, these tools show promise but do not melt or apply hot melt fast enough and tend to drip and string adhesive.
High power hot melt stick guns only should be used in packaging applications - as one of the keys to successfully glued packages is to apply precise consistent patterns fast and compress the materials quickly.
The next step in packaging with hot melt handguns is the self contained hot melt gun. These tools have melt reservoirs within the gun that condition bulk low cost adhesive prior to application. These tools allow for the fast application of hot melt and can be equipped with a range of nozzles to include multi orifice nozzles used extensively in case erecting and sealing.
In larger scale manual hot melt packaging applications a small hot melt tank with pump feeding a high pressure hose to a handgun is preferred. This system melts larger volumes of bulk low cost hot melt and allows for the very fast application of hot melt adhesive.
For more information call or email Pierce Covert,
Glue Machinery Corporation
1(888)202-2468
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How to Eliminate Hot Melt Adhesive “Stringing”
Monday, 03 January 2011 19:55
Pierce Covert
- Change Hot Melt- some products simply machine better
- Adjust Temperatures- slightly higher temperatures at the gun, hose and head.
- Nozzle Changes- smaller nozzles create more adhesive velocity from nozzles
- Higher Pressures- high pump pressures create more adhesive velocity from nozzles
- New Solenoids for Guns- solenoids insure fast movement of the needle valves in the guns
- Higher Pressure to Solenoids – 80 psi or greater is required to cycle guns properly
- Clean Glue- Do not stack hot melt beside machinery
- Clean All System Filters- improves flow and removes debris
- Replace old hot melt hoses- this is a major source for debris in the system
For more information call or email Pierce Covert,
Glue Machinery Corporation
1(888)202-2468
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
More: Hot Melt News Articles >
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