| 摘要 |
<p>PURPOSE:To discriminate whether the individual molded articles are properly subjected to plasma treatment or not easily by naked eye, by applying a standard wetting index solution to an uncoated surface of a large-sized article trated with plasma, e.g. bumper, and investigating the activated state of the surface. CONSTITUTION:A standard wetting index solution is applied to an uncoated surface of a large-sized resin molded article treated with plasma, e.g. bumper, to discriminate the activated state of the surface. A solution prepared by mixing ethylene glycol monoethyl ether with formamide at 93.7-99:6.3-1 volume ratio is used as the standard wetting index solution and applied by means of an applicator.</p> |
