PNG pixelated when placed in Photoshop

[sulam7628108]

Hi, I scanned in a drawing, exported it as a png and now I want to bring the png back into another PSD composition but it is super pixelated when placed. I don't understand what is going wrong because it is scanned at 300ppi and looks fine when opened in the original file but goes very pixlated when brought into a new one. I have tried exporting the original png as a very scaled up version to see if it would help but it didn't. 

I have attached screenshots,  the non pixelated one is the original before export, the rest are what it looks like when brought back into photoshop. 

Any help would be appreciated, thanks!

[marliton]

Hi. In the screenshot with the zoom at 134%, it looks good, right? In the other screenshots the scale is like 400% and the pixelates effect should be normal.

[sulam7628108]

hi, thanks for your reply. I understand it gets more pixelated when zoomed in, but the file completely changes once placed. Also, If i bring the exact same png into a file in illustrator, it doesn't pixelated like it does in photoshop

[c.pfaffenbichler]

Could you please post the placed image and a screenshot of th eplaced image taken at View > 100% with the pertinent Panels (Layers, Channels, Options Bar, …) visible? 

What are the Image Interpolation Preferences? 

[JJMack]

Image being displayed 134% and Top Swirl 3 layer not the smart object swirl 3 layer is being displayed as  a preview for a transform. Transform Previews are crude.

Can not tell Zoom level here the qualitp may actually be good. Judge zoomed to 100%

Looks like you are zoomed way in here so you can see the pixel grid and the anti-aliasing being done.

This look like it is the crude Swirl 3 Transform Preview. There must be some stray pixels in that  raster layers the swirl is not centered in the Transform interface.