... cloth breakage rate can be reduced, due to small amount using of sizing agent, the woven fabrics feel stiff, ... as textile finishing agent, usuaully combined with urea and formaldehyde, when the fabric being baking with high temperature, they ... instrument packing, printing plate.5. Acetalized devivative: PVA and formaldehyde, acetaldehyde, butyraldehyde or other aldehydes or under acid catalyst ...