Effect of Polyhydroxy Alcohols as Formaldehyde Scavenger for Durable Press Cotton Fabrics

듀어러블 프레스 가공에 있어서 폴리히드록시알코올을 이용한 유리포름알데히드의 포학효과

Results from studies of lowering formaldehyde release from durable press finished cotton fabrics are presented. Cotton fabrics were crosslinked with DMDHEU in presence of magnesium chloride hexahydrate as a catalyst and polyhydroxy alcohols as a formaldehyde scavenger. The most effective concentration of polyhydroxy alcohol additives for lowering formaldehyde release from finished fabrics was 4% level, but the easy care properties of finished fabrics were decreased. It was desirable to use polyhydroxy alcohol additives at less than 4% concentration of pad bath. The large reduction of formaldehyde release from finished fabrics was at pH 5 in the pad solution and at pH 4-7 in the wash water. The glycol class of polyhydroxy alcohol is water souble, and is compatible and effective with crosslinking agent; too much can reduce durable press performance to unacceptable levels because the polyhydroxy alcohols interfere with the crosslinking reaction between cellulose and DMDHEU.