Method of steam-sterilizing contact lens label

Details Method of steam-sterilizing contact lens label Method of steam-sterilizing contact lens label

1998-07-09

2000-04-25

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

53425, 264482, 422 26, 428200, 428203, 428209, 428457, 428461, B23K 2600, B32B 300, B65B 5512

Patent

active

060540907

ABSTRACT:
A process for steam-sterilizing label-bearing containers stacked with the labels in contact, without destroying the labels such as occurs if the labels are printed by thermal transfer for product-variable data. The process features laser-ablating imagewise the label to remove an ink layer so as to expose either a contrasting ink layer below, or a metal foil or polymer substrate. Such containers are then readily stacked on the labels and sterilized without thermal damage to the labels.

REFERENCES:
patent: 5061341 (1991-10-01), Kildal et al.
patent: 5488815 (1996-02-01), Abrams et al.
patent: 5653844 (1997-08-01), Abrams
patent: 5656362 (1997-08-01), Abrams
Laser Focus, Jul. 1975, p. 28 et seq.

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