How do I improve the texture and image resolution in Unity?

I am trying to create an animation sprite for a game title. I got the code working in Javascript for the sprites to loop. However, the image keeps blurring. In addition, if I resize the image using the scale tool in Unity, it still is blurry. My questions is how I prevent an texture on an object from looking blurry. The sprite sheet texture material consists of 19 frames.

http://postimg.org/image/5n9ysv9dt/

Judging by your screenshot it looks like you are trying to stretch that texture out too ridiculous scale of (177, 1, 10) ?

I’m not sure what you are trying to do here the set up looks quite peculiar. But if the scale and your script is the way you want it you could check if the texture is set to true color instead of compressed?

Ryan’s answer is probably a good start. If your sprite-sheet texture is non-power-of-two and it really is super wide like that, then you’ll need to set that in the import settings.
Check out the Advanced drop-down option under your texture’s import settings.