US 11,498,791 B2 · Method and apparatus for making adhesive tape

Abstract

The subject matter of the present invention is a method and a device for producing an adhesive tape (1). First a material web (2) comprising a carrier tape material is supplied from an unwinding unit (3). The supplied material web (2) is subsequently provided on at least one surface with at least one adhesive strip (4) in a coating unit (6). The material web (2) provided with the adhesive strip (4) is then cut into at least two longitudinal strips with the aid of a cutting device (10) and made up into individual adhesive tapes (1). According to the invention, a sensor (8, 9) scanning the material web is used to align the material web (2) and/or the cutting device (10) in the transverse direction (Q) in such a way that a longitudinal cut (S) respectively produced with the aid of the cutting device (10) is introduced in an exact position into the material web (2).

Claims9

Dependent claims

A method of making an adhesive tape comprising the following method steps:

1.1) an unwinder supplying a web strip from a substrate-web supply;
1.2) a coater subsequently applying a plurality of adhesive strips to one face of the supplied web strip;
1.3) thereafter a cutter longitudinally splitting the web strip provided with the adhesive strip into at least two longitudinal substrips each carrying a respective adhesive strip, thereby making individual adhesive tapes;
1.4) before or during step 1.3) and after step 1.2), a sensor scanning the web strip to determine a transverse position of the adhesive strips on the web strip;
and
1.5) transversly shifting and thereby aligning the web strip and the the unwinder in the transverse direction to move the web strip without moving the cutter in such a way that a longitudinal cut produced by the cutter is introduced in an exact transverse position relative to the adhesive strip into the web strip.

3 more elements

Dependencies are inferred from the claim text.

Method and apparatus for making adhesive tape

Life of this patent

Method and apparatus for making adhesive tape

Life of this patent

Abstract

Claims9