Quality of Service in IP Networks

Process for imparting improved wrinkle-recovery and crease-retention characteristics, frequently referred to as durable press or wash-and-wear characteristics, to textile fabrics containing at least some reactive fibers usually natural fibers such as cellulosic or regenerated cellulose fibers, by cross-linking such fibers in delayed-cure or conventional procedures. Either the resin or other cross-linking material or materials or the catalyst, when a catalyst is used, may be encapsulated in microcapsules. Alternatively, both the cross-linking material or materials and the catalyst are thus encapsulated. The capsules are applied to the fabric, before or after or simultaneously with the application of such unencapsulated materials as may be used, to sensitize the fabric for subsequent cross-linking operation. Cross-linking is effecting when desired usually by application of heat and/or pressure to the sensitized fabric, to release the encapsulated materials and to complete the reaction.