Masking film roll for use in painting, method for producing it,

Details Masking film roll for use in painting, method for producing it, Masking film roll for use in painting, method for producing it,

1997-10-22

2000-09-26

Ahmad, Nasser

Stock material or miscellaneous articles

Structurally defined web or sheet

Fold at edge

118504, 118505, 206389, 206813, 428121, 428192, 428194, 4289044, 428906, B05D 132, B32B 304

Patent

active

061240184

ABSTRACT:
The invention provides an on-line continuous method for producing a masking film roll to be used in painting, comprising corona-discharging the inner surface of a tubular film of a polyolefinic resin, cutting the tubular film open, folding the film in the lengthwise direction in a particular manner, partly attaching an adhesive tape to the film along its lengthwise one edge in such a manner that the adhesive surface of the tape is made to face the corona-discharged surface of the film and that the thus-attached tape is left to have a non-attached part in its lengthwise direction, and winding up the film around a tubular core to be a roll, provides the masking film roll as produced by the method in which the adhesive surface of the adhesive tape attached to thereto faces opposite to the non-corona-discharged surface of the uppermost layer of the folded film, and provides a tubular film of a polyolefinic resin from which the masking film of the invention is produced and of which the inner surface has been corona-discharged.

REFERENCES:
patent: 4263347 (1981-04-01), Banta
patent: 4781957 (1988-11-01), Brown
patent: 5113921 (1992-05-01), Pool
patent: 5296170 (1994-03-01), Noritsugu et al.

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