Burst strength testing method
The burst strength testing method is an important technique for measuring the durability and strength of packaging materials, especially corrugated and flat cardboard. This specific test evaluates a material's ability to withstand forces before yielding, a vital aspect for the modern packaging industry.
Operation and application of burst testing
Burst testing works by applying pressure through a diaphragm on the cardboard sample until it bursts. This rupture typically occurs by forming a hole. The amount of pressure required to cause this rupture is recorded and expressed in kilopascals per square centimeter (kp/cm2) or pounds per square inch (lbs/sq.inch).
Importance of burst strength in packaging
Measuring burst strength is important for many products that generate internal forces, acting from the inside out. This includes a variety of items such as dry peas, plastic balls, metal boxes, nails, and other small objects. These objects can shift inside the packaging and create a concentration of pressure on a small area of the cardboard.
The Mullen test and its role in evaluating cardboard quality
Packaging with high burst strength is essential to ensure that the product reaches its destination in good condition, without puncturing or damaging the packaging during transportation. The Mullen test, which relates burst strength to grammage, allows for comparing different qualities of cardboard.
FAQ on burst strength testing method
This method aims to measure the durability and strength of packaging materials, especially corrugated and flat cardboard. It assesses a material's ability to withstand forces before yielding, a vital aspect for the modern packaging industry.