Method and apparatus for producing variable patterns and...

Details Method and apparatus for producing variable patterns and... Method and apparatus for producing variable patterns and...

B - Operations, Transporting

29

C

18/1056, 92/4

B29C 59/04 (2006.01)

Patent

CA 1289713

ABSTRACT OF THE DISCLOSURE A method of and apparatus for changing the pattern impressed in or on a web of material passing through the nip of opposing calender rolls is disclosed. A plurality of calender rolls are provided with a pat- tern of lands and grooves. While a web of material is passed through the nip or nips formed at least in part by each patterned roll, the relative register between the patterned rolls is maintained so that the pattern created by the overlap of each pattern impressed on the web continues in an unchanging fashion throughout the length of the web thus processed. By altering the rela- tive register of the patterned rolls, and then maintain- ing the rolls in the new register, a distinctive compos- ite pattern is impressed in or on the web without other- wise altering the patterned calender rolls.

503951

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