Parmacuetical blister Aluminum foil Lamination
The primary aluminum alloys used to produce PTP aluminum foil are: 1100, 1200, 1145, 8011. Different alloys have different mechanical properties and have different effects on product performance.
Taking 8011 alloy as an example, PTP aluminum foil produced from 8011 alloy primary aluminum has higher tensile strength, elongation, and breaking strength. There is less chance of aluminum foil breaking when heat-sealed with PVC. There are occasions where high strength is required. Multipurpose 8011 alloy primary aluminum.
However, due to its high elongation characteristics, the 8011 alloy primary aluminum has a larger elongation after printing and drying at about 180 ° C to 200 ° C, and the elongation exceeds 0.2%, while the primary aluminum of other alloys has an elongation after high temperature oven. Around 0.1%.
Therefore, when printing products with high requirements for the cursor pitch deviation, the cursor pitch deviation will exceed the required range, which will cause PTP aluminum foil to be unable to be tracked photoelectrically on the packaging machine, resulting in product scrap, and other aluminum alloys will need to be used instead.
Aluminum foil's tensile deformation, thermal expansion and contraction, and other reasons will affect the accuracy of overprinting. For high-precision overprinting, accurate registration and positioning printing, the performance of aluminum foil must be considered.
According to the requirements of different products, in addition to the production process control, the production of primary aluminum with different alloys is necessary.
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