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Laser marking of microporous films
Author(s) -
Kuder James E.,
Taskier Henry T.,
Hamer E. Geoffrey
Publication year - 1988
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1988.070350512
Subject(s) - microporous material , materials science , polypropylene , polyethylene , laser , irradiation , composite material , optics , optoelectronics , physics , nuclear physics
The potential for microporous films as optical recording media is explored in this report. Irradiation of metallized films of microporous polypropylene and polyethylene with a HeNe laser produced marks having high contrast and which could be read without the aid of polarizing optics. The novel marking process involves melting, collapse of the microporous structure, and thinning of the film as the built‐in strain relaxes.