Re: BitmapMaterial + PhongShader + DAE. Why black lines on the material?

Without seeing your texturemap and can't say it for sure, but i guess these black lines, are just the seems of your uvw map.

have a look at your uvw-layout in Maya, and try moving your seems away from the seems of your texture, were the black background and the yellowish skin meet.
Or just change the black background of your texture to the same yellow like you used for the overall color.

That should fix your problem :D