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Proteases to Improve the Mechanical Characteristics of Durable Press Finished Cotton Fabrics
Author(s) -
Stamenova Maria,
Tzanov Tzanko,
Betcheva Rossitza,
CavacoPaulo Artur
Publication year - 2003
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200290036
Subject(s) - ultimate tensile strength , materials science , cellulose , hydrolysis , protease , proteases , composite material , reagent , chemical engineering , polymer chemistry , polymer science , organic chemistry , enzyme , chemistry , engineering
N ‐Methylol reagents are conventional crosslinking agents that are still widely used in textile industry to produce crease‐resistant cotton fabrics. In this work serine proteases were used to recover the strength of fabrics, cross‐linked with N ‐hydroxymethylacrylamide. Nearly one half of the strength loss of crosslinked cotton fabrics could be restored after protease treatment, while the wrinkle recovery angle (WRA) decreased only slightly. The enzymatic hydrolysis of the amide cross‐links in the durable pressed cellulose was confirmed by FT‐IR analysis and dyeability with an acid dye.Effect of protease concentration on the tensile strength recovery, WRA and acid dye dyeability at 30 min reaction time.