how do i get my graphics noticed by fabric makers of sheets, scrubs and curtains  

I think it's hard as a beginner. A fabric has their own creative team and creative consultant. So you need to have connection with their consultant. As a first step, i think you should built your own name branding and a website for displaying your artworks. It's very important to have an internet identity nowadays. Let people find you on the internet. Remember to put watermark on your sample. Good luck and have a nice day. Happy mylotting.