What are Different Tests to Check the Stack Ability of Plastic Packaging?

Quick Summary

Plastic packaging demands rigorous pack testing to ensure reliability across industries like pharmaceuticals and F&B. This blog covers three key instruments used in packaging performance testing: the Dart Impact Tester, which evaluates resistance to free-falling impacts; the Vacuum Leak Test, which checks seal integrity and leakage resistance; and the Coefficient of Friction Test, performed using a coefficient of friction tester, which measures slip and stacking tendency for safe transport and storage. Together, these tests help manufacturers meet ASTM, JIS, and BIS standards—whether testing bottles, jars, barrels, or blister boxes. Here's how Presto Group's pack testing equipment supports consistent, reliable packaging performance testing outcomes

Across the world, plastics is the widely used packaging material for different industries. From pharmaceuticals to F&B industries, it can be used for storing and transporting any type of non-reactive material, be it solids, liquids or powder. Depending upon the intended use, packaging tests are performed to check if it can withstand the conditions. Subjected to extreme working conditions, tests are performed in labs by simulating the environmental conditions. Primary test instruments that we use on plastic packaging are dart impact tester, vacuum leak tester, the coefficient of friction tester that determines the behaviour of packaging in real working conditions.

When we are talking about plastic packaging, we are primarily talking about plastic bottles, jars, barrels, boxes, blister boxes, etc.

Why Pack Testing Matters for Plastic Packaging

Plastic packaging is used in industries such as pharmaceuticals, food and beverages, cosmetics, chemicals, and consumer goods. Reliable packaging must have more than just the right material. Packaging must be tested. In laboratory tests, try to mimic conditions: drops, changes in pressure, changes in temperature, and rubbing on surfaces. These tests show how well packaging works when packaging is moved and handled.

Different kinds of packaging—from medicine bottles and blister packs to jars, boxes, and containers—may need tests. Three common testing tools are the Dart Impact Tester, the Vacuum Leak Test apparatus, and the Coefficient of Friction Test equipment. Each tool checks a weakness.

1. Dart Impact Tester: Measuring Resistance to Impact

Packaging material often comes in exposure to harsh working conditions like temperature, humidity, impacts and so on. Dart impact tester is one test which determines how your plastic pack would respond if some object falls freely on it. It calculates the energy that causes the plastic samples to fail under specified conditions. The dart is a hemispherical head and dropped from variable heights. The dart is clamped on an electromagnetic holder that releases the dart at a press of a button. The maximum weight that you can test with this instrument is 500gms.

2. Vacuum Leak Test: Verifying Seal Integrity

Seal of plastic packing is the main component that ensures the safety of content inside. Vacuum leak test is a brilliant tool that can check the seal integrity, pressure decay, seal performance of specimen. In this test, the sample is placed inside the vacuum kit and the air is sucked out of it. In this condition, if the specimen successfully keep the contents inside without leakage or bursting, it passes the test.

3. Coefficient of Friction Test: Understanding Slip and Stacking Behavior

The friction between the plastic materials is very less. Due to this property of material, the slippage between the products increase. What is the stacking tendency of the material is determined by the coefficient of the friction tester. In this test, samples are placed over each other, a slider block is then placed over the sampled attached to a pulley. This pulley starts pulling the slider block and you can see the output reading on microprocessor based display.

Depending upon your industrial requirements, you can add more tests into it or skip any of these. Presto Group offers a wide range of testing equipment which are used in packaging industry. All these testing instruments are made in compliance with ASTM or JIS or BIS or may be all three.

Building a Complete Packaging Performance Testing Program

Depending on your industrial needs, you can add more tests to your procedure or skip some based on the type of your product and the packaging. Some industries may focus a lot on the vacuum leak test because they deal with liquids or items that can go bad easily. Other industries may care more about the dart impact tester because their packaging has to handle treatment when it is being moved around.

No matter which option you choose, the goal stays the same: to fully test how well your packaging holds up. You want to be sure it can handle the conditions it will face on its way to a customer. Doing this early helps prevent products from being returned. It also reduces losses caused by damage. Over time, it builds trust in the brand.

Presto Group provides a selection of testing equipment that is widely used in the packaging industry. These include the Dart Impact Tester, vacuum leak test systems, and coefficient of friction tester units. Each of these instruments is built according to standards like ASTM, JIS, and BIS. Sometimes they meet all three standards at once. This ensures that pack testing results are reliable and accepted worldwide.

Get a Quote

Looking to make your packaging performance testing stronger? Presto Group offers precision-engineered Dart Impact Testers, Vacuum Leak Test systems, and coefficient of friction testers. These tools are built to help you check packaging reliability from the beginning of research and development all the way to quality control.

Call us now: +91 9210 903 903.
 Email us at info@prestogroup.com. 

Get in touch with our team today to find the right pack testing solutions tailored to your industry needs.

Conclusion

Reliable plastic packaging starts with testing. The Dart Impact Tester is useful because it shows how reliably plastic packaging can withstand hits. Vacuum leak testing is important too because it checks that the seals of plastic packaging stay tight. The coefficient of friction test explains how plastic packaging slides against boxes. This knowledge helps keep stacking, handling, and transport safe. For pharmaceutical and food packaging, the Coefficient of Friction Test is especially vital because reliable performance matters. Presto Group offers packaging testing tools that meet ASTM, JIS, and BIS standards.

FAQs

1. What is the purpose of a Dart Impact Tester?

A Dart Impact Tester checks how plastic packaging reacts when it falls from a height. It calculates the amount of energy that must be used to break the sample. Using a Dart Impact Tester is essential to test how well the packaging can survive drops and shocks in handling.

2. How does the vacuum leak test work?

The vacuum leak test places a packaging sample inside a vacuum chamber. Removes the air around the packaging sample. If the packaging sample keeps its contents without any leaks or breaking open, then the vacuum leak test passes. The vacuum leak test shows that the seal is strong and holds well.

3. Why is the Coefficient of Friction Test important for packaging?

Since plastic surfaces do not have natural grip, the Coefficient of Friction Test is used to find out how well things stack and if they might slide or move. This helps stop them from moving when they are stored or shipped.

4. What is a coefficient of friction tester used for?

A friction coefficient tester checks how much friction exists between pieces that are stacked on top of each other. It uses a sliding block and a pulley system to do this. The results are shown on a screen that is controlled by a small computer.

5. Are Presto Group's testing instruments compliant with international standards?

Yes, Presto Group's packaging performance testing equipment, which includes the Dart Impact Tester and the Vacuum Leak Test systems, meets ASTM, JIS, and BIS standards. Presto Group's packaging performance testing equipment is fully compliant with these regulations.