Corrugated Box Testing Methods:
- Bursting Strength Test.
- Edge Crush Test 2 Single.
- Water Resistance of the Gluing.
- Cobb Sizing Tester.
- Paper Grammage and Thickness.
- Puncture Resistance.
- Scuff Resistance Test.
- Box Compression Test.
How do you calculate the ECT of a corrugated board?
It is measured by compressing a small segment of board on edge between two rigid platens or plates perpendicular to the direction of the flutes until a peak load is established. This is measured in pounds per lineal inch of load bearing edge (lb/in), but usually reported as an ECT value (for example, 44 ECT). 40 lbs.
What is ring crush paper test?
Ring crush testing is used to measure the edgewise compression of paper and board materials. A short cylinder of material is inserted into an annular groove and axially loaded to failure. Results are quoted in kN/m. We measure in conformity with International Standard ISO 12192.
What is ring crush test in Kraft paper?
Kraft paper or kraft is paper or paperboard (cardboard) created from substance mash delivered in the kraft procedure. The ring crush test (RCT) is utilized to decide the ring smash opposition of a paper strip shaped into a ring with an institutionalized length and width.
How do you test the strength of cardboard?
There are two common methods for measuring corrugated material strength in the carton industry: the Burst (Mullen) Test, and the Edge Crush Test (ECT).
How do you know if corrugated box is GSM?
This round sheet cut form the sample is weighed which gives the weight of the material per 100sq cm. When the weight is multiplied by 100, it gives the weight of the material per sq. meter which is the GSM value of the material being tested.
What is edge crush test for corrugated boxes?
An edge crush test (ECT) is a laboratory test method used to measure the cross-section crushing of corrugated cardboard. The test measures the resistance of the edges to crushing since it is the corners and edges of the boxes that are mostly responsible for bearing the loads.
What does 48 ECT stand for?
Edge Crush Test
ECT stands for Edge Crush Test and is one of the most popular methods of determining the actual strength of a corrugated box or other corrugated material. Ultimately, edge crush testing shows us two things: box compression strength and stacking strength.
What is RCT in corrugated box?
The ring crush test (RCT) is used to determine the ring crush resistance of a paper strip formed into a ring with a standardized length and width.
How do you calculate RCT to ECT?
RCT = 0.9625 where the ECT, SCT and RCT are in kN/m, the correlating constant (k) is dimensionless and α is the profile and plant specific flute take up factor.
How do you test bursting strength?
Summary of Test Method A specimen is clamped over an expandable diaphragm. The diaphragm is expanded by fluid pressure to the point of specimen rupture. The difference between the total pressure required to rupture the specimen and the pressure required to inflate the diaphragm is reported as the bursting strength.
What is burst test for packaging?
The Burst test determines package strength by pressurizing a package until it bursts. This test meets the requirements of regulatory agencies to demonstrate the strength of a package seal. This test complies with ASTM F1140 “Standard Test Methods for Internal Pressurization Failure Resistance of Unrestrained Packages.”
What is the ring Crush Test (RCT)?
The ring crush test (RCT) is used to determine the ring crush resistance of a paper strip formed into a ring with a standardized length and width. This test is performed to ISO 12192 and TAPPI T 822.
How to test the glue of corrugated cardboard boxes?
For certain applications, the FEFCO 9 standard is used to test the water-resistance of the gluing of the corrugated cardboard boxes. In this type of test, the corrugated board is immersed in water while exposing the glue lines to check for bond strength and water absorption.
How to test the bursting strength of corrugated board?
In this testing procedure, a rubber diaphragm is used to apply pressure to the walls of the corrugated box until it bursts. The diaphragm is expanded using hydraulics and as the diaphragm expands, the corrugated board bursts under pressure. We measure the bursting strength in Kilograms per square centimetre.
What is the ring crush strength analyzer?
The Ring Crush, Edge Crush, Flat Crush Strength analyzer estimates the unbending nature of CFB on edgewise. Microchip based show for precise test outcomes. Show for pressure quality of test example. Isolate apparatuses for ring crush, edge squash and level smash test. Profoundly precise test results under pressure drive.
