Abstract: The present invention relates to the manufacturing of adhesive tapes having a backing consisting of a polypropylene or other olefinic polymer or copolymer film, one side of which is coated by elastomeric or plastomeric adhesive systems (as applied from solutions, emulsions, in a molted condition, etc., according to the technologies known in the art), the other side being coated with or without corona or flame treatment, with antiadhesive systems which facilitate the unwinding operation of the tape either in the processing and in the application, but at the same time may receive printing inks of the flexoroto-silk-screen type inks suitable for the printing of polyolefinic films. The application of antiadhesive systems which are ink compatible can be carried out either on line, namely during the tape coating process, and on tapes already coated by means of the duly modified printing machine.

Abstract: The present invention relates to the manufacturing of adhesive tapes having a backing consisting of a polypropylene or other olefinic polymer or copolymer film, one side of which is coated by elastomeric or plastomeric adhesive systems (as applied from solutions, emulsions, in a molted condition, etc., according to the technologies known in the art), the other side being coated with or without corona or flame treatment, with antiadhesive systems which facilitate the unwinding operation of the tape either in the processing and in the application, but at the same time may receive printing inks of the flexo-roto-silk-screen type inks suitable for the printing of polyolefinic films. The application of antiadhesive systems which are ink compatible can be carried out either on line, namely during the tape coating process, and on tapes already coated by means of the duly modified printing machine.

Abstract: For pressure sensitive adhesive tapes having a film backing of polypropylene or other olefinic polymer or copolymer, the treatment of the non adhesive side before the release coat is applied causes the unwinding noise of the tape to be essentially reduced.

Abstract: A method for making self-adhesive printable tapes is described, provided with a supporting member made of an olefin polymer or copolymer, in particular polypropylene, wherein the antiadhesive surface of the supporting member or film, provided for receiving the printed marks, is coated by a lacquer including polymers or resins having a good adhesion to the supporting film, good antiadhesive properties and a very good receptivity with respect to the inks used in printing.Examples of such polymers and resins are: copolymers of acrylic or methacrylic esters with alcohols, polyurethane resins, lacquers including modified cellulose ethers and esters, polyamide copolymers and cellulose ester modified polyamide copolymers.