#1 Bursting Strength Test We measure the bursting strength in Kilograms per square centimetre. The Bursting factor is given as a thousand times the bursting strength, divided by the grammage of the board.
What is bursting strength of packaging?
It means the excessive pressure of the products that are placed inside burst the material. To analyze the amount of weight or pressure that a material can tolerate before it fails, bursting strength test is performed on the packaging products.
What is bursting strength of a fabric?
Bursting strength refers to the force required to break the fabric. When force or pressure is vertically applied on fabric it is called bursting. The force needed to rupture the fabric (when applied perpendicularly) is called bursting strength [16].
Is standard for bursting strength?
This International Standard specifies a method for measuring the bursting strength of board submitted to increasing hydraulic pressure. It is applicable to all types of board (including corrugated and solid fibreboard) having bursting strengths within the range 350 kPa to 5 500 kPa.
What is meant by bursting factor?
It is defined as the maximum pressure on the paper surface or paperboard in a perpendicular direction, required to rupture the paper. It is the strength characteristic of paper and estimates the behaviour of the packing in the process of transit like handling, loading and unloading.
What is BF and GSM?
The quality of the paper used to manufacture the Carton boxes depends on the GSM & the Burst Factor measurement of the Paper. … Its obvious the paper with the higher GSM & BF will have the better strength than the paper with the lower values. So you can decide based on the product to be packed inside the box.
How does bursting strength work?
The working principle of Bursting Strength Tester is hydraulic pressure. The testing machine comes with rubber diaphragm and a digital readout of pressure with a peak hold facility. The hydraulic pressure is applied through a rubber diaphragm at an increasing rate until it ruptures the material.
Why is burst strength important?
It is beneficial to measure the bursting strength because it allows manufacturers to analyse the strength of the package and ensure that it doesn’t get damaged in transit. Bursting strength value can be used to grade the quality of corrugated material.
Why is bursting strength test done?
In burst strength testing, a force is applied to fabric to measure the conditions that will cause the textile to rupture. This test is designed for fabric that will bear weight or withstand force, such as: Trampolines. Pool covers.
How do you calculate bursting strength of fabric?
Calculate the bursting pressure of each specimen by subtracting the tare pressure required to inflate the diaphragm from the total pressure required to rupture the specimen. Report the pressure reading of each individual specimen and the average for each laboratory sampling unit and the lot.
What is burst test?
A burst test is a destructive test and performed to determine the pressure overload capacity of pressure containing parts. The tests are performed with a fluid. … working pressure and the pressure when the product completely fails (burst pressure).
What is the difference between tear strength and tensile strength?
Tear strength and tensile strength were considered important factors in this study because tear resistance (or tear strength) is a measure of how well a material can withstand the effects of tearing, whereas tensile strength is a measurement of the force required to pull something to the point where it breaks.
Is 7028 a drop test?
The equipment is utilized for estimating the capacity of the carton boxes to withstand the drops experienced by them amid travel and transporting (according to IS: 7028 Pt IV). Arrangement of angular drop is available to find out the transit value of the package from all points.
What is trapezoidal tear?
5.1 The trapezoid tear method is a test that produces tension along a reasonably defined course such that the tear propagates across the width of the specimen. The trapezoid tearing strength for woven fabrics is determined primarily by the properties of the yarns that are gripped in the clamps.
What is the difference between bursting strength and bursting factor?
Bursting factor is calculated to determine the amount of pressure that a paper or cardboard can tolerate easily before it collapses. … On the other hand, bursting strength is measured by providing maximum hydrostatic pressure to rupture the paper used to produce corrugated boxes.
What is GSM in carton box?
The term gsm is an abbreviation of Grams per Square Meter.
What is burst index?
According to ISO 536 the burst index means the bursting strength in kilopascals, divided by the basis weight in gsm. On the other hand the burst factor can be calculated with the bursting strength in gram per centimeter squire, divided by the basis weight in gsm.
What is kraft paper BF?
The paper manufactured in this plant is of High Tear Factor (TF), High Burst Factor (BF) i.e. 25+, 28+, 30+, 32+ and 35+ with GSM ranging from 80-450. …
What is GSM used to measure?
grams per square meter The term GSM stands for grams per square meter. For this standard, the weight of various types of paper is measured from a sample sheet cut to one square meter in size. No matter the length or width the paper becomes, the weight measurement is always taken from the square meter sheet.
How do I calculate GSM?
How to Calculate Fabric GSM by GSM Cutter:
- Cut the fabric with the GSM cutter (gram per square inch).
- Weight the fabric with the electric balance.
- The cut sample is 100 sq. cm. The weight of the cut sample is multiplied by 100.
- The result is the GSM of that particular fabric.
How do I find my paper boyfriend?
To Calculate the BF and BI, you first need to measure the burst strength of the packaging material. Once you get the burst value, using the below-mentioned calculation, BF and BI can be derived. To evaluate the effect of burst forces on a material, Bursting Strength Tester is used.
How do you use bursting strength tester?
The procedure involves preparing the specimen for test and mounting the sample between two circular clamps. The specimen is then, tightened with the help of geared handle provided. The increasing pressure (hydraulic) is then applied by the handle. The diaphragm is expanded till the specimen ruptures.
How do you calculate box strength?
The best way to calculate Bursting Strength of a 5 Ply Corrugated…
- The best way to calculate Bursting Strength of a 5 Ply Corrugated Box.
- Burst factor = Burst strength (gf/cm2) / Grammage (grams/m2)
- Burst Index = Burst strength (kPa) / Grammage (Kg/m2)
What is bursting strength of corrugated box?
Box Strength
| Minimum Bursting Test, Singlewall, Doublewall (lbs. per sq. in) | Minimum Edge Crush Test (ECT) (lbs. per in. width) | Minimum Combined Weight of Facings, Including Center Facing(s) of Doublewall |
|---|---|---|
| 200 | 32 | 84 |
| 250 | 40 | 111 |
| 275 | 44 | 138 |
| 350 | 55 | 180 |
How do you test the bursting strength of paper?
Bursting strength is measured utilizing a rubber diaphragm that is expanded hydraulically against the paper sample. A bursting test is also known as a Mullen test or pop test, and a minimum bursting strength is required for cartons used for shipping.
How do you do a burst test?
How do you test fabric for stiffness?
This test method covers the measurement of stiffness properties of fabrics. Bending length is measured and flexural rigidity is calculated. WITHDRAWN – This test method covers stiffness properties of nonwoven fabrics by employing the principle of cantilever bending of the fabric under its own weight.
What is the unit of bursting strength?
Bursting strength is usually quoted in kPa. We determine bursting strength using a digital hydraulic paper or digital hydraulic board burst tester as shown below. Burst index (kPa. m2/g) = burst strength/basis weight.
Graduated from ENSAT (national agronomic school of Toulouse) in plant sciences in 2018, I pursued a CIFRE doctorate under contract with Sun’Agri and INRAE in Avignon between 2019 and 2022. My thesis aimed to study dynamic agrivoltaic systems, in my case in arboriculture. I love to write and share science related Stuff Here on my Website. I am currently continuing at Sun’Agri as an R&D engineer.