"turban" and "headband"
What is difference between "turban" and "headband"?
Exo 39:28 and the turban of fine linen, the linen headbands and the undergarments of finely twisted linen.
Look forward to your reply. Thanks.

Question

"turban" and "headband"
What is difference between "turban" and "headband"? 
Exo 39:28 and the turban of fine linen, the linen headbands and the undergarments of finely twisted linen.
Look forward to your reply. Thanks.

Answer

These days - a turban is a headdress that covers the entire head. A headband just goes around the outside of the head. e.g. a sweatband is a type of headband. 
As your example is somewhat archaic language, it is hard to tell what it was used for then.