Eco-friendly coloration of silk and flax fabrics with natural dye enhanced by ultraviolet radiation

Preparation of nano disperse dye based on benzopyran in one pot reaction using microwave irradiation and its appliance in textile printing

“…Increasing awareness of environmental issues around the world make various treatments such as UV, ultrasonic, gamma radiation and microwave in the light spot for many scientist who are working in the field of textile wet treatments (pre-treatment and dyeing) to improve the quality of the dyed fabrics and reduce environmental pollution in the same time. UV radiation is mainly used in the pretreatment of both the fabric and dye solution separately to lower the dyeing conditions (time and temperature) and enhance the colour strength and fastness properties of treated fabrics [9,16,20,22,27,28]. The same results were noticed by using the gamma radiation and plasma on different fabrics [8,44].…”

Application of Sensitized Silver Nanoparticles on Pretreated Polyester and Silk Fabrics with Eco-friendly Mixed Gas Plasma

“…Washing fastness grades of the examined treated and untreated fabrics samples dyed with natural dye produced at dye bath concentration given in tables 5 (a-e). The obtained results of fastness to washing revealed that for all examined samples, the alteration ranged from fair-good (3-4) for untreated and oxygen plasma treated samples, and excellent (5) for oxygen nano-silver plasma treated, mixed gas plasma Treated and oxygen/argon mixed gas nano-silver plasma treated samples. Staining in general, was small and ranged from slight-no staining (3-4) for untreated, oxygen plasma treated samples, and was no staining (5) for oxygen nano-silver plasma treated, mixed gas plasma Treated and oxygen/argon mixed gas nano-silver plasma treated samples.…”

“…The fastness properties to washing were determined according to standard method [27], the washing fastness grade was assessed using standard Gray Scale which ranges from (1)(2)(3)(4)(5), where 5 (excellent), 4 (good), 3 (fair), 2 (poor) and 1 (very poor). While, the staining 5 (no staining), 4 (slightly staining), 3 (noticeable staining), 2 (considerable staining) and 1(heavy staining).…”

“…The worldwide demand for natural dyes is gaining great attention these days due to the increasing awareness of environmental importance and a wide range of applications such as engineering, food, textile, medical, and agricultural industries [5]. Natural flavonoids and anthraquinones constitute two important groups of dyestuffs.…”

Textile colouration with natural colourants: A review

“…Influence of mordants on colour yield, colour strength (K/S values) and other fastness properties of Sterculia foetida dyed linen fabric was analysed where bio(harda) mordanted linen fabric exhibits higher colour depth and good fastness properties than alum or without mordanted fabric both in pre and post mordanting method (Teli and Pandit, 2018). Moreover, Ultraviolet radiation properties of linen fabric can also be improved by the application of some natural dyes (extract from Helychrysum, Rubia, Daphne, Lavandula, Cynara, Chelidonium majus, Sterculia foetida) (El-Hennawi et al, 2017;Grifoni et al, 2014;Teli and Pandit, 2018).…”