Kuvermatic flat®

Revolutionary flat envelopes for high-speed inserting

Kuvermatic flat® is the completely flat inserting wallet which satisfies the needs of both inserting machine manufacturers and operators of inserting machines. 

For optimum performance of inserting machines it is required that wallets are presented absolutely flat and to minimize inserting problems envelopes lie flat in the envelope feeder.   

The patented design of Kuvermatic flat® incorporates double folded side seams, which means that flatness is achieved by equal envelope thickness which gives the envelope a rigid construction to avoid the envelope buckling during high speed insertion.

Kuvermatic flat® provides the highest performance level of the inserting machine and therefore a higher output.


  • Absolute flatness due to patented double bonding
  • Increased rigidity and increased tear strength due to overlapping side seams
  • Potential saving of postal charges due to low grammages of 65 and 70 g/m²
  • Available sizes: 114x229 mm, C5 and C4