12. Effectiveness.
Depending on the thermal processing requirements, the ink of the print should not be pulled off during hot pressing. The test method consists of stacking a piece of printed matter with a piece of clean aluminum foil, treating it with the temperature, pressure and time of actual production. After cooling, it separates the printed product from aluminum foil and observes the transfer of the ink to the aluminum foil.
Depending on the thermal processing requirements, the ink of the print should not be pulled off during hot pressing. The test method consists of stacking a piece of printed matter with a piece of clean aluminum foil, treating it with the temperature, pressure and time of actual production. After cooling, it separates the printed product from aluminum foil and observes the transfer of the ink to the aluminum foil.
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