Laser perforation of paper

Details Laser perforation of paper Laser perforation of paper

1995-05-18

1996-09-17

Krynski, William A.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

503226, 156253, 428 43, 428137, 428211, 430945, B41M 520

Patent

active

055568262

ABSTRACT:
Laser perforation of all types of paper provides paper having sufficient strength characteristics to survive stresses imposed during handling, such as experienced in sheet feed processes. The paper so perforated is readily separable along the perforation line when separation is desired. Carbonless paper products particularly benefit from use of a laser in perforation. The paper, capsule, and capsule fill material are vaporized during the laser process, thus forming clean holes and leaving little residual material on the paper.

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