Low-temperature dyeing of silk fabric using atmospheric pressure helium/nitrogen plasma

Application of atmospheric pressure plasma technology for textile surface modification

“…Recent investigations of the influence of APP treatment on the physical and chemical modification of mulberry silk (Bombyx mori) revealed that a significant surface modification occurs. [106][107][108][109] As expected, plasma treatment causes surface etching, partial removal of sericin and dust particles if present. Due to etching, an increase in surface roughness occurs as well as formation of micro cracks, making the fiber more accessible to water, dyes, pigments, and other chemical agents.…”

“…[106][107][108] Treatment with nitrogen plasma induces formation of amine (-NH 2 ) and amide (-CONH 2 ) groups on silk fibers. 109 The obtained physiochemical changes of silk fibers after APP treatment can improve hydrophilicity, 106 dyeability in terms of dye exhaustion, color depth, homogeneity, and even fastness of certain types of dyes. [109][110][111] Zhang et al 112 have improved the printability of silk fabrics with pigment ink-jet printing by pretreating the fabrics with DBD air plasma.…”

Enhancing Dark Shade Pigment Dyeing of Cotton Fabric Using Plasma Treatment

“…Table 3 indicates that K/S Sum values increase with the increase of discharge power in pigment dyeing. When the discharge power is increases from 130 to 170 W, formation of highly active species results in increased etching and oxidation rate [11,12]. Meanwhile, with the use of higher discharge power will allow active species to have higher energy to bombard and interact the substrate and generate more cracks.…”

“…During plasma treatment, the fiber surface can be modified physically [4][5][6] and chemically [7][8][9]. In physical modification, active plasma species bombarding the fiber surface causes ejection of atoms on the fiber surface [10][11][12]. Cracks and grooves are formed on the fiber surface which helps improve the wicking and absorption of water in the plasma treated fiber [2,3].…”

“…Cracks and grooves are formed on the fiber surface which helps improve the wicking and absorption of water in the plasma treated fiber [2,3]. On the other hand, when oxygen is used as the plasma gas, it can help introduce oxygen-containing functional groups such as -OH and -C=O, which are hydrophilic in nature, into the fiber surface [2,11,12]. Plasma-induced physical and chemical actions help to improve the pigment dyeing behavior of cotton fabric [2,3].…”