How to check spunlace nonwoven fabric quality?

The most important for spunlace fabric is its composition, as viscose fibers is usually more expensive than polyester fiber, viscose made the spunlace better absorbent and higher quality for wiping.

The most easy way to test the blend of viscose & polyester is burned the fabric:

See the fabric after burned:

You can see the obvious difference during the burning.

More polyester the fabric will burn more quick and it is not easy to exterminate.After burning, there is a black induration. But 100% viscose after burning it is only gray,no induration. So burn faster and more induration, then the fabric contains more polyester.