1. Equipment aspects of blister packaging
(1) The blister packaging equipment is not clean. Dust or dust on the blister packaging equipment will contaminate the blister packaging sheet, which will cause discoloration of the blister packaging.
(2) The unbalance of thermocouple, temperature controller or heating system causes temperature unbalance, which will also discolor the blister packaging.
2. Mold aspects of blister packaging
(1) The vent hole of the blister packaging mold is bad, which causes the blister to react violently with oxygen under high temperature and high pressure, burn the blister packaging, and so on.
(2) Too much lubricant and mold release agent contained in the blister packaging sheet or the blister packaging mold will also cause the blister packaging to change color. In this case, we should clean it on schedule, and then it is necessary to Remove some additives such as anti-static.
3. Blister packaging sheet
(1) The moisture and volatile content are high.
(2) Pyrolysis of colorants and additives.
(3) The blister packaging sheet is contaminated.
