DuPont Packaging Resins SURLYN® AND NUCREL® TESTED FOR SEASONING SACHET Technology Profile
نویسنده
چکیده
In the comparison test, we evaluated pinhole resistance in three ways, since it was not clear what evaluation methods corresponded to the pinhole resistance on the manufacturing line. The test methods employed were Gelbo flex after 30 cycles, puncture strength (by sticking a pin head into the laminated structure), and press through contamination (by putting a laminated sample between #180 sandpaper and a rubber sheet and pressing at 6.7 kg/cm2 x 1 sec. on a compression machine).
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