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Do you know what causes these prominent lines on top of silk pla print?
In general you probably will see lines with a print of this shape when using the monotonic top surface pattern. On awkward shapes it’s just the way the slicer generates it, the lines are produces when if comes back to fill in the rest (see below). Maybe trying concentric or one of the other patterns may work better?
Slice the file, then in the preview, click the toggle next to Travel to visualize the line type. If you see a big blue travel that matches where that line is, try removing the setting “reduce infill retraction". It’ll force it to retract for that travel and leave it cleaner.
As mentioned, concentric etc top/solid can also minimize the need for travels entirely too but will give yet another appearance.
It also may be a thing where your flow is a little too high so the solid top gets shoveled around. But it doesn’t look too much like that.
