Printer's Resource FAQ

How does the Tri-Loc Registration system work?

In the Art Department, films are aligned and attached to carrier sheets. Films are then aligned and sent to the Screen Department for exposing. Operators mount the film and carrier sheet on the Tri-Loc master frame, loads and exposes the screen. As soon as screens are blocked out and taped up, they’re ready for production.

At the press, one printing pallet is removed and replaced with the Tri-Loc pallet. This pallet has three stop blocks that mimic the blocks of the exposure unit master frame. The pallet is indexed around to each print station and raised into position. The screen is simply pulled into contact with the stop blocks, re-registering what was started in the Art and Screen department. With a Tri-Loc, the operator no longer needs to look through the screen for a printed image to align to.