The general method to test whether paper is suitable for blister packaging is to apply blister oil on unprinted white paper, and then do a blister test. If the test on the white paper passes, the blister properties after printing will generally not be has a problem. In white board paper (also called gray-backed white paper or pink-gray paper), there is no problem in processing white board paper into blister packaging; in white cardboard, there are relatively few that can do blister packaging. Of course, this is not absolute. You still need to test and confirm before selecting paper. Only after passing the test can you purchase in large quantities for printing production.
1. Correctly choose blister oil
To process high-quality blister packaging, you must choose the appropriate blister oil according to the material of the blister cover. For example, PET blister covers and PVC blister covers have different performance requirements for blister oil.
2. Reasonably determine process parameters
The ratio and flow rate of the blister oil, the pressure between the metering rollers of the oil passing machine, the pressure of the pressure roller, the oil passing speed, and the storage time after oiling will all affect the quality of the blister packaging. Each parameter must be strictly controlled during production, and each control parameter must be inspected and confirmed before production.
In short, processing blister packaging is not a difficult task. Once blister failure occurs during production, it is important to maintain the correct thinking to solve the problem, that is, first find the cause on the paper, and then confirm the blister oil and process parameters in turn Whether it is correct and reasonable, you can quickly find the answer and get twice the result with half the effort.
