Machine direction orientation of nylon film

Details Machine direction orientation of nylon film Machine direction orientation of nylon film

B - Operations, Transporting

29

C

18/1043

B29C 55/06 (2006.01) B29C 55/00 (2006.01)

Patent

CA 1171225

ABSTRACT OF THE DISCLOSURE A process for machine direction orientation of nylon films in which nip rolls are applied to both the slow and fast orientation rolls with a substantially uniform force in the range of 15 to 45 N/cm width of nip roll. The temper- ature of the slow roll is held between 70 and 180°C and the temperature of the fast roll is held between the temperature of the first roll and 20°C below the melting temperature of the nylon film. The distance between the orientation rolls is in the range of 10 to 2050 µm.

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