Laser marking method and aqueous laser marking composition
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 25, 1997
Grant Date -
N/A
app pub date -
Dec 12, 1994
filing date -
Dec 22, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a laser marking method which comprises heating a base article having on its surface a thin film of a laser marking composition containing a color former and a color developer having a melting point of 200.degree. C. or above, and then applying laser light to the thin film. The method of this invention is capable of no-break marking with vivid color development by application of laser light, without causing discoloration of the ground even under a condition of 120.degree. C. or above.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully