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RISS 인기검색어
- 검색키워드
- 저자 : Luqman Jameel Rather (검색결과 2 건)
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Exploring the Potential of Tannin Based Colorants Towards Functional Value Addition of Wool Textiles
Mohd Shabbir,Luqman Jameel Rather,Faqeer Mohammad 한국섬유공학회 2019 Fibers and polymers Vol.20 No.9
Nature has been a first inspiration for the evolution of mankind. Natural colorants of plants origin highlyinfluenced the textile industry and target a wide range of textile functionalities. Tannins from Terminalia chebula fruits havebeen explored to develop colored, UV protective and antioxidant functional wool textiles. Metallic mordants (Alum, ferroussulfate, and stannous chloride) under ecological permissible limits are utilized to establish the correlation with the functionalproperties achieved on textiles. Shades of various colors on wool are characterized in terms of CIEL*a*b* and color strength(K/S) values on Hunter-Lab spectrophotometer. Ultra-violet (UV) protection ability was measured in terms of UVtransmittance and UPF (UV protection factor) values. UV transmittance is consistently below 5 % in all dyed wool fabrics,while it was upto more than 30 % in undyed wool. Antioxidant results of both mordanted and unmordanted (control) dyedwool fabrics are found highly appreciable up to 99 % of activity. Multifunctional colored wool textiles are developed withecofriendly and economically viable process and resources.
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Siyamak Safapour,Luqman Jameel Rather,Javad Moradnejad,Shazia Shaheen Mir 한국섬유공학회 2023 Fibers and polymers Vol.24 No.12
In recent years, bio-dyes are being increasingly explored as promising sustainable alternatives for cleaner dyeing and functional finishing of textiles. In this study, an ecological approach was presented for clean dyeing and functionalization of wool using flavonoid-based bio-dyes extracted from lemon balm plant. First, dyeing parameters (pH, time, temperature, and dye concentration) were optimized using one-factor-at-a-time (OFAT) optimization technique. Afterwards, wool yarns were dyed using 75% (o.w.f.) of bio-dyes in conjunction with different bio-mordants (Quercus infectoria and Eucalyptus camaldulensis leaves), metal salts (Cu2+ and Fe2+), and their binary combinations. Practically, nine different sober color shades (control dyeing: Yellowish brown; Fe2+: Raw umber color; Cu2+: Satin sheen gold color; GN: Tan color; EU: Fallow color; Fe/GN: Van dyke color; Fe/Eu: Wenge color; Cu/GN: Coyote color; Cu/Eu: Khaki color) were obtained. Additionally, dyed wool exhibited excellent antibacterial, antioxidant, and UV-protection behaviors. Indeed, the introduction of metal ions (Fe2+ and Cu2+) and bio-mordants enhanced the color depth and fastness properties and imparted a semi-durable antimicrobial and antioxidant finish with 80% retention of activity after 20 washing cycles. The results of this study confirmed the potential of lemon balm as a promising source of bio-dyes to impart a semi-durable antimicrobial and antioxidant finish with a bright future in the biomedical textile division and healthcare applications with UV protection.
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