A Study on Characteristics of Coated Films on Wood Surface by Nitrocellulose Lacquer, Aminoalkyd, Polyester, and Polyurethan

니트로셀룰로오스락카, 아미노알키드, 폴리에스테르 및 폴리우레탄 도료(塗料)의 도막성능(塗膜性能)에 관(關)한 고찰(考察)

This experiment was executed to investigate the characteristics of gloss and color difference in coated films by N.C. Lacquer, Aminoalkyd, Polyester. and Polyurethan coating after chemical (distilled water, ethyl alcohol. acetic acid, and sodium hydroxide) and heating ($120^{\circ}C$) treatments, cold-check test, and U.V. radiation. The results obtained were summarized as follows 1. The gloss decreasing rate by water resistance test was the least among chemicals treated on coated films. 2. The color difference of coated films chemical treatments highly and similarly increased, except the alkali treatment showing a little increase. 3. In the color difference by U.V. radiation, the polyester coated film showed generally large difference compared with the other coated films.