Dyeing and finishing of flax. In the process of soft finishing, stiff finishing and crease-resistant finishing, various dyes, auxiliaries and finishing agents need to be added, and the resin contained therein contains formaldehyde. But the formaldehyde content of linen curtains is very low. Just wash it once before use and you can use it.

Formaldehyde organic compound, chemical formula is HCHO. Colorless gas with irritating smell. Used for manufacturing resins, explosives, dyes, etc. Also called ant aldehyde. An organic compound, a colorless gas with a pungent odor, exists in plant cells together with chlorophyll.