Improving Packaging Durability with Bursting Strength Test

Bursting strength test is one of the package testing methods to evaluate the strength and durability of paper and cardboard, and it is often used in the quality inspection of packaging.  It measures the maximum force a material or package can withstand before rupturing or bursting. Bursting strength test helps manufacturers and suppliers ensure that their packaging is strong enough to protect the contents during shipping and transportation.

1. Importance of Bursting Strength Test in Packaging Industry

The Bursting Strength Test is a crucial test performed to determine the strength and durability of different types of packaging materials. Here are some of the industries which use this test and its importance:

1. Packaging industry: In this industry, the packaging material’s strength and durability are very important to ensure that the product inside it remains safe and undamaged during transportation and storage.

2. Paper industry: Paper manufacturers need to test the bursting strength of their product to ensure its quality and strength.

3. Textile industry: The bursting strength test is used to check the strength of fabrics, particularly those used in heavy-duty applications such as canvas or denim.

4. Food industry: Food packaging materials need to be tested to ensure they can withstand the pressure exerted by the contents inside, such as sauces, soups, or carbonated beverages.

5. Pharmaceutical industry: The Bursting Strength Test is an essential quality control test in the pharmaceutical industry. It ensures the packaging material does not break or lose its integrity which leads to the contamination of the medicine or drugs.

Overall, this test is essential for maintaining the quality of packaging and other materials in various industries, ensuring the safety of products and consumers.

2. How can we measure the bursting strength of material?

The instruments used to test the bursting strength of materials are called bursting strength testers.

There are two types of testers:
1. hydraulic bursting strength tester,such Mullen tester
2. pneumatic bursting strength tester, such 04BOM burst tester.

3. How Does Bursting Strength Tester Work?

Through the bursting strength tester, we can obtain the quantitative bursting strength, that is, the maximum pressure that the paper/cardboard can withstand on a unit area. It can also be used to test the bursting strength of non-paper materials such as silk and cotton

Bursting strength tester works by clamping a sample of the material being tested between two circular plates. The upper plate has a rubber diaphragm that will expand as pressure is applied. The tester applies hydraulic pressure to the diaphragm until the sample bursts. The pressure required to burst the sample is measured in pounds per square inch (psi) and is used to determine the strength and durability of the material.

What is ASTM for Bursting Strength?

ASTM or the American Society for Testing and Materials is an international organization that develops and publishes technical standards for various materials, products, systems, and services. In the context of bursting strength testing, ASTM has created standard methods and procedures that specify the equipment, specimens, test procedures, and calculations required for accurate and reliable testing of various types of materials.

Here are some ASTM standards for bursting strength testing of different materials:

– Textile fabric: ASTM D3786/D3786M-13 Standard
– Paper: ASTM D774/D774M-11(2016) Standard
– Corrugated boards: ASTM D4727/D4727M-17 Standard
– Plastics: ASTM D774/D774M-11(2016) Standard
– Films: ASTM D3420/D3420M-18 Standard
– Composites: ASTM D7264/D7264M-16 Standard

What is GSM & BF? and What Is The Formula for Burst Factor?

GSM stands for Grams per Square Meter and is a measurement of the weight or thickness of paper or fabric. BF stands for Burst Factor and is a measure of the strength and durability of paper.

The formula for Burst Factor (BF) is：BF = (bursting strength in pounds) / (basis weight in pounds per 1000 square feet)

The higher the BF value, the stronger the material.