How to get an animation stable uv mapping?

[Blender_Fun1 (Blender.Fun)]

i want to change the height of the spiral and (!) have a realistic/stable uvmap for that.

i tried this node setup here:

but the result isn’t really stable/realistic:

as you can see the materials “rotates” too much to be realistic.

[higgsas]

Try adding Set Curve Normal / Z Up, after the spiral