Transparent door curtain Why are pvc curtains so greasy and sticky?

Used to produce PVC transparent door curtains-

Bao Hua efficient transparent rare earth calcium zinc PVC stabilizer (national invention patent, replacing toxic and irritating organotin 18 1 methyl tin)

Bao Hua efficient transparent rare earth calcium zinc PVC stabilizer (national invention patent, thermal stability is three times that of toxic liquid barium zinc)

Bao Hua efficient transparent rare earth calcium zinc PVC stabilizer (national invention patent, thermal stability is 3 times that of ordinary liquid calcium zinc).