Coating processes – Measuring – testing – or indicating – Thickness or uniformity of thickness determined
Patent
1987-07-09
1988-04-26
Pianalto, Bernard D.
Coating processes
Measuring, testing, or indicating
Thickness or uniformity of thickness determined
427 38, 427 451, B05D 302
Patent
active
047403837
ABSTRACT:
A method for checking the degree of plasma treatment of an article. The method comprises depositing a substance able to change color as a result of plasma treatment on a carrier, the carrier having pores having an average pore size of 0.2-3 .mu.m, placing the carrier having said substance deposited thereon near the surface of the article, subjecting the substance carrying carrier and the article to plasma treatment, and evaluating the color change that has occurred in the substance.
Arakawa Takashi
Kitagawa Kuniharu
Mita Fumio
Simizu Setsuo
Fuji Photo Film Co. , Ltd.
Pianalto Bernard D.
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