Durable-Press, Wool/Cotton Blend, Double-Knitted Fabrics hrink-Resisted with Ozone

Treatment with dimethyloldihydroxyethyleneurea (DMDHEU) reduces shrinkage in 70 30 and 50 50 wool cotton blend fabrics (a 74% reduction occurs in the latter), but an ozone pretreatment is necessary to confer an accetal le degree of shrink resistance to these fabrics. Ozone treatment of 100% cotton does not affect its laundering shrinkage, and the shrinkage resistance imparted to this fabric by DMDHEU is not altered by ozone pre or post treatment. Ozone treatment alone improves the durable-press (DP) properties of all fabrics, but creases are poor and fuzziness is high in all but the 100% cotton fabrics. DP properties are not improved by DMDHEU treatment alone in 100% wool fabric, but they are slightly improved in the 70/30 wool cotton, somewhat improved in the 50 50 wool cotton, and markedly improved with the 100% cotton fabric. With the 70/30 and 50/50 wool cotton fabrics there is marked improvement if the ozone and DMDHEU treatments are combined. Some improvement also occurs with 100% cotton. Ozone in c...