Bleaching of Cotton/polyamide fabrics with enzymes and peracetic acid was written by Usluoglu, Ayse;Arabaci, Gulnur. And the article was included in Asia-Pacific Journal of Chemical Engineering in 2014.Reference of 10543-57-4 This article mentions the following:
Presently biotechnol. plays an important role especially in the field of environmental protection. In the textile industry, enzymes are often used in many technol. processes as they are ecol. This study attempted to introduce the bio-processes in the conventional scouring and bleaching preparation of cotton/polyamide (PA) fabric. We investigated the utilization of peracetic acid formed in situ from reaction of tetraacetylethylenediamine with sodium perborate to affecting bleaching process by using lipase, protease, cellulase, pectinase enzymes. Fabric wettability, tensile strength, whiteness index were taken as a measure of the extent of cotton/PA bleaching. The optimized bleaching recipe and processing were compared with conventional process. Results obtained that, cotton/PA fabric bleached with peracetic acid and either lipase, protease, cellulase or pectinase enzyme shows excellent wettability and acceptable whiteness index. The optimum bleaching recipe consists of 20 g/L, tetraacetylethylenediamine; 12 g/L, sodium perborate; 2 g/L, enzymes; and 1 g/L non-ionic wetting agent; the treatment was carried out at 60 °C for 45 min. This bio-process achieved high quality cotton/PA fabric whiteness to the conventional system at much shorter batch times and with significantly reduced fabric strange lost and alkali consumption, which would be beneficial to the textile industry. © 2014 Curtin University of Technol. and John Wiley & Sons, Ltd. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Reference of 10543-57-4).
N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. The solubilities of amides and esters are roughly comparable. Typically amides are less soluble than comparable amines and carboxylic acids since these compounds can both donate and accept hydrogen bonds. Tertiary amides, with the important exception of N,N-dimethylformamide, exhibit low solubility in water. In simple aromatic amides, fragmentation occurs on both sides of the carbonyl group. If a hydrogen is available in N-substituted aromatic amides, it tends to migrate and form an aromatic amine and the loss of a ketene.Reference of 10543-57-4
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics