Adhesive tape for producing a joint during a static reel change

Abstract

In order to provide an adhesive tape ( 10 ) for producing a joint during a static reel change between two flat web materials ( 40, 41 ) wound up onto reels, having a carrier ( 11 ) and a self-adhesive compound ( 12 ), with which the exposure of the self-adhesive compound ( 12 ) during the further processing of the webs ( 40, 41 ) bonded to each other is avoided, it is proposed that, in the self-adhesive compound ( 12 ), a gap be formed in the longitudinal direction of the adhesive tape ( 10 ), in order to form two self-adhesive compounds ( 12 ) having a spacing (V), as viewed in the width of the adhesive tape ( 10 ). Furthermore, a corresponding method is proposed.

1 . An adhesive tape for producing a joint during a static reel change between two flat web materials wound up onto reels, said adhesive tape comprising a carrier layer and a self-adhesive compound adhered to at least one side of the carrier, wherein the self-adhesive compound adhered to said at least one side comprises at least two distinct regions of self-adhesive compound separated from each other by a gap having a spacing (V).  
   
   
       2 . Adhesive tape according to  claim 1 , which has a cleavable system on a side of the carrier opposite that to which the self-adhesive compound is adhered.  
   
   
       3 . Adhesive tape according to  claim 2 , wherein the carrier is wider than the cleavable system.  
   
   
       4 . Adhesive tape according to  claim 1 , wherein the self-adhesive compound has a holding time of at least 1000 min. on coating body paper and at least 2000 min. on gravure printing paper, in each case measured at 23° C., and 55% relative atmospheric humidity and under 1 kg loading (F).  
   
   
       5 . Adhesive tape according to  claim 1 , wherein the self-adhesive compound is applied to the carrier in an amount of 20 to 60 g/m 2    
   
   
       6 . Adhesive tape according to  claim 5 , wherein the self-adhesive compound is applied to the carrier in an amount of 25 to 50 g/m 2 .  
   
   
       7 . Adhesive tape according to  claim 1 , wherein the self-adhesive compound comprises an acrylate base.  
   
   
       8 . Adhesive tape according to  claim 1 , wherein the self-adhesive compound is applied to the carrier by strip coating.  
   
   
       9 . Adhesive tape according to  claim 1 , wherein the carrier is a tear-resistant paper or film carrier.  
   
   
       10 . Adhesive tape according to  claim 1 , which further comprises a covering for the self-adhesive compound.  
   
   
       11 . Adhesive tape according to  claim 10 , wherein the covering comprises a perforation and/or a slit in a longitudinal direction of the adhesive tape.  
   
   
       12 . Method for joining two webs, said method comprising sticking an of each of the webs to the self-adhesive compounds of an adhesive tape according to  claim 1 , each of said self-adhesive compounds being spaced apart from one another at the spacing (V) such that a break between the ends of the webs is smaller than the spacing (V).