Quality Testing Procedures for Corrugated Boxes
Packaging is one of the most important factor that has deep impact on the quality of a product. The packaging of any products is meant to provide the best level of protection to the production during storage and transit. This is why the manufactured need to choose the best packaging materials for their products so that they could be protected efficiently until they are delivered to the customers. The manufacturer of packaging materials also must adopt best practices to ensure the best quality of et packaging options they offer their clients.
Corrugated boxes and sheets are basic parts of the packaging business. Generally utilized in trans portations, they should be sufficiently able to shoulder the outer pressure. To make them fit to use in various applications, corrugated fiber boxes go through severe testing measure. In the event that the packer knows various properties of the CFBs, fitting prudent steps can be taken.
Bursting Strength Test — As these cases are intended to convey transfers of variable loads, their bursting strength is surveyed earlier choosing for pressing. Bursting strength tester applies water driven or pneumatic tension on the test. A round example is cinched on the installation and wanted strain to be applied is set utilizing checks. Glycerin is utilized as a medium to make water driven tension on the elastic stomach. As this stomach grows, it moves equal tension on the example until it burst. The weight applied to blast the example is estimated and shown on the screen or measure. Thinking about this, the bursting strength factor can be determined.
Bursting Factor = Bursting Strength (Kg/cm2) x 1000/Grammage (gm/m2)
Edge Crush Test — A corrugated fiber sheet has a structure where a flimsy sheet having edges and wrinkles are sandwiched between two direct sheets. These edges and wrinkles disperse the weight similarly all through the surface accordingly forestalling any harm. To evaluate the strength of this structure three tests is performed basically on this corrugated structure. Edge crush test, ring crush test, level crush test. An edge crush tester with various installations can be utilized to play out every one of these tests. It applies a power from the top on the example put in various positions. For edge crush test, the power is applied in pivot to the bearing of the edges. In level crush test, the power is applied on the highest point of edges lied in the level position. In ring crush test, a ring is made out of the flimsy strip wherein edges are hub to the heading of power applied.
Cobb sizing tester — The crude material used to make CFB is paper that tends to retain water so it can endure the wet conditions during utilization. In the event that the water maintenance limit of a material is low, at that point it can get harmed in wet and wet conditions without any problem. In this manner, it is critical to survey how much water the example can ingest and hold. A Cobb sizing tester is utilized for this cycle, which is a basic get together to cinch the test underneath the tube shaped tempered steel cavity. This pit is loaded up with water when the example is simply underneath it. After some time, the example is taken out. It is squeezed with weighty steel roller to eliminate overabundance water out of it. The distinction in weight of the example when the test is the cobb sizing value the CFB.
These tests are essential for quality testing and quality control of the products. With the help of these testing procedures it is easy for the manufacturers of corrugated boxes to ensure that they are providing the best protection to the products through better packaging.
