Most people are currently using a particular gauge of shrink film because that’s what has always worked. What many people don’t know is that based on their specific application or process, there are several options available to reduce their shrink film usage and increase their bottom line. Most proactive shrink film projects are focused on corrugated reduction by using a PE (Polyethylene) shrink film instead of corrugated box. This can be done with a bundler.
In order to show a film savings, down gauging or downsizing the width of the film needed. This can be accomplished in a couple different ways.
Determine the correct film width
The image to the right is a formula that can be used to determine the correct film width. By determining the dimensions of the product that you are packaging into the formula, it will provide the correct width of film that should be used in the process.
Switching to an automatic side seal
In a high speed or high volume application, going from an automatic or manual L Bar Sealer to an automatic side sealer can offer tighter package dimensions of film, therefore resulting in film reductions.
You can also save money through other options. One simple solution is switching the size of the shrink film roll to a jumbo roll, which has twice the footage. The benefit of this is fewer changeovers needed which results in less downtown.
Utilizing pre-perforated shrink film is another step that end users can take advantage of. By having the shrink film pre-perforated, there is no longer a need for handling or maintaining a perforating wheel. Perforating wheels are comprised of hundreds of small pins used to poke through the shrink film to make hundreds of small holes (perforate it.). After a while, these pins begin to become dull from extended use. When this happens, maintenance is required on the wheel and all of the small pins need to be sharpened again which can be time consuming. The use of pre-perforated shrink film also results in less downtime and fatigue caused from setting up the roll on the wheel.
Just because a shrink packaging process is working does not necessarily mean that it is the most cost effective solution for that specific application. Having a Packaging Specialist analyze and consult with you on your shrink packaging process can help reduce material costs and increase productivity.
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