פירוש על כלים 24:13

לוילון טמא טמא מת (that is used for a curtain – is susceptible to corpse uncleanness) – that is made for a curtain/screen in front of the opening is ritually impure, because the attendant wraps himself up in its rims on occasion and warms himself in it.

There are three different types of sheets:
One used for lying upon is susceptible to midras uncleanness;
One used as a curtain is susceptible to corpse uncleanness;
And one used as a mural decoration is free from all uncleanness.
I think by now the principles underlying this mishnah should be clear.

של צורות (for shapes, images) – clothing that is in the hand of the embroiderer, and there are many images in it in order to see it to make something like it in another cloth.