| 摘要 |
<p>Applying a coating composition onto a linearly advancing substrate from at least two spray guns which cyclically traverse the substrate in the direction perpendicular to the movement of the substrate, and which are spaced so as to satisfy the harmonic relationship between the speed of the advancing substrate, the frequency of the spray gun cycles and the spacing of the spray patterns at the surface of the advancing substrate, as defined by the following equation: i Rs Ng + n Sp = Fm Ng WHEREIN:</p> |
