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Important things You Require To Know About Polyethylene Packaging 101

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Polyethylene Packaging

Resins... Film thickness... Tensile strength... Impact resistance... Exactly what do most of these terms mean for you when buying your polyethylene bags?

Unless you are a poly salesman and have a diploma in Plastics Engineering, the terminology used in the probably makes your face spin. To assist you, we've created Polyethylene Packaging 101.

Resins (Defined as: Any one numerous physically similar polymerized synthetics or chemically modified natural resins including thermoplastic materials such as polyvinyl, polystyrene, and polyethylene and thermosetting materials such as polyesters, epoxies, and silicones that are used in combination with fillers, stabilizers, pigments, along with other components in order to create plastics.)

Some find it overwhelming with the different resins available these days. How do you choose if you have octene, metalocene, butene, hexene, etc... A knowledgeable salesman are able to help know what grade to utilize. Each grade has different characteristics and choices needs to be according to applications. Understanding resin properties is critical in formulating the correct product for your specific application.

Film Thickness (Gauge)

Polyethylene film thickness is measured by thousandths inch, or milli-inch. The thickness in the bag doesn't always correlate into strength. Huge gauge bag may not be strong. Most often it is a blend of resin grade and gauge relative to the application form. A couple mil octene linear bag could have more strength compared to a 2 mil butene linear.



Tensile Strength vs. Impact Resistance

Tensile strength may be the maximum stress that a material can withstand while being stretched or pulled before breaking. Why is this important?
You need to possess a plastic bag which is sufficiently strong enough for your application. A plastic bag that holds 50 pounds of fabric will need to have adequate tensile strength, otherwise the bag find yourself breaking.

Impact resistance is often a material's capacity to resist shock loading. Precisely what does this mean?
Basically it is the film's capacity to resist being punctured. A punctured bag may result in contaminated goods or product loss.

When selecting the proper gauge and resin formula it is important to consider how tensile strength and impact resistance are tightly related to your packaging application. A good example that everyone can relate to can be a garbage bag. I know they've got had failure in a garbage bag if it breaks when lifting out of your can (tensile strength) or waste material punctures holes within it (impact resistance). Wonderful these variables in selecting the correct formula for the polyethylene package, developing a knowledgeable salesman is vital.

Isn't there was so much to understand about making Polyethylene "Film and Bags"!?!

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on Aug 06, 19