| Envelope Production | Die Cutting | Printing | Window Punching/Patching | Folding | Gumming and Sealing |
Envelope Machines: Window Punching and Patching
The Window, off line
When the blanks are printed, the window machine punches and patches
the windows on the blanks.
Blank Window Machine Blank w/ Window
Corresponding Machine:
FL Smithe OP (Punch only)
Pearce 56 & 64 (Patcher only)
W&D 31J, W&D 13