US 2017/0282445 A1Published application

Method for increasing the adhesion between the first surface of a first web-shaped material and a first surface of a second web-shaped material

AssigneeTesa SE

InventorsArne KOOPS, Marco KUPSKY, Klaus KEITE-TELGENBÜSCHER, Stephan ZÖLLNER, Thomas SCHUBERT

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Abstract

A method for increasing the adhesion between the first surface of a first web-shaped material and a first surface of a second web-shaped material, the first web-shaped material and the second web-shaped material being fed continuously and with the same web direction to a laminating gap, in which the first web-shaped material and the second web-shaped material are laminated together by means of the first surfaces thereof, the two first surfaces being treated with a single plasma simultaneously and preferably over the entire area, the laminating gap being formed by a pressing element and a counter-pressure device, which builds up a counter pressure, and preferably at least one of the lateral surfaces of the pressing element and of the counter-pressure device or both being equipped with a dielectric, characterized in that none of the two first surfaces/web-shaped materials are guided through the discharge zone of the plasma-generating device.

Claims21

Dependent claims

A method for increasing the adhesion between the first surface of a first web-type material and a first surface of a second web-type material, said method comprising:

feeding the first web-type material and the second web-type material continuously and with identical web direction to a laminating gap, in which the first web-type material and the second web-type material are laminated together each by their first surface,
treating both first surfaces of the first web-type material and of the second web-type material simultaneously and optionaly over the full area with a single plasma, more optionally such that the plasma, beginning ahead of the laminating gap up to the laminating gap, acts continuously on the two first surfaces,
wherein the laminating gap is formed by a pressing element and a counter-pressure device which develops a counter-pressure,
optionally at least one of the cylindrical surfaces of the pressing element and of the counter-pressure device, or both, are furnished with a dielectric,
wherein
none of the two first surfaces/web-type materials is fed through the discharge zone of the plasma generating device.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/508,639Filed 7 Sep 2015
Priority: DE 10 2014 217 821.55 Sep 2014
Published: 5 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification40 codes

C09J 5/02
Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers: involving pretreatment of the surfaces to…
B29C 65/48
Joining or sealing of preformed parts , e.g. welding of plastics materials; Apparatus therefor: using adhesives , i.e. using supplementary joining…
B29C 65/483
Characterised by the type of adhesives: reactive adhesives, e.g. chemically curing adhesives
B29C 66/028
Preparation of the material, in the area to be joined, prior to joining or welding: non-mechanical surface pre-treatments, i.e. by flame…