For the testing of packaging cartons, there are probably basic tests such as edge pressure, breakage resistance, flat pressure, puncture, adhesive peel, moisture, compression, etc. Extended tests include water absorption, stiffness, moisture resistance, printing abrasion resistance, vertical pressure and a series of other tests.
1, compressive strength test: the use of microcomputer control, high precision, is the detection of cartons, paper corner or other packaging containers compressive strength ** direct test instrument, used to determine the ability of the carton and stacking height.
Compressive strength test function - used to determine the ultimate compressive strength of the specimen, the tester will automatically record the peak pressure
Stacking strength test function: used to test the durability of the specimen under simulated packaging storage conditions, the tester to 12.7mm/min speed of the specimen pressurized to the preset pressure to stop, when the specimen pressure deformation pressure value drops to less than 5% of the preset pressure, the tester automatically supplement the pressure to the preset pressure and maintain, until the specified stacking time, the tester automatically terminates the test.
Corrugated carton packaging of electronics, electrical appliances, electric wires, hardware, bicycles, handbags, food, shoes, furniture ...... and other factories to test the strength of the carton to burst. It can also test synthetic leather and cloth. Manual operation is used to pressurize, when the test material rupture, the standard contains the parameters of testing, conversion, adjustment, display, memory, printing and other functions; easy to operate, easy to adjust, stable performance. Design standards: ISO2759 "Determination of cardboard breakage" GB/T1539 "Determination of cardboard breakage" GB/T6545-1998 "Determination of corrugated cardboard breakage strength" affects the side support strength of corrugated cartons - corrugated carton protection products, breakage that is the assessment of the cardboard unit area can withstand uniform and increased ** pressure value. The test is to examine the ability of the carton to withstand static local extrusion in the actual transportation environment.
3, puncture strength test: cardboard resistance to external sudden impact can withstand the energy
4, bonding strength test: insufficient bonding strength is likely to cause delamination, greatly reducing the compressive strength of the carton
5, thickness test: If the cardboard in the processing process, the corrugated height loss is too large, for example, after die-cutting, that is, creasing, slotting or printing, it will greatly reduce. Therefore, maintaining the thickness of corrugated cardboard should be a key part of the production process.
6、Ring pressure side pressure strength test: directly affects the support strength of corrugated cartons - corrugated cartons bear gravity mainly by the flute, side pressure is the way to assess the strength of the flute**.
7、Water content: It refers to the moisture content of corrugated paper or cardboard, expressed as a percentage. The water content has a great impact on the strength of corrugated boxes, and is one of the three heavy defects inspection items of corrugated boxes. If the moisture content is too low, the paper will be too brittle and will easily break when fluting, and the folding resistance will be poor. If the moisture content of corrugated paper is too high, the corrugated board processed by a single-sided machine will be prone to curling, and blistering and debonding will easily occur when laminated.
8. Shake cover folding resistance test: This is a very important indicator in carton testing, and it can be a good indication of the quality of the carton.
Carton as an indispensable part of modern logistics, bear the important responsibility of containing, protecting the product, the physical properties of the packaging box indicators become the basis for its quality assessment. Please pay attention to QINSUN instrument if you buy packaging carton testing instrument!