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- 저자 : Shahab Torabian (검색결과 1 건)
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Optimization of nano TiO2 pretreatment on free acid dyeing of wool using central composite design
ALI NAZARI,Mohammad Mirjalili,Navid Nasirizadeh,Shahab Torabian 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
The aim of the research is to investigate nano technique of wool acid dyeing without the presence of acidauxiliary agent at temperatures lower than the boiling. The wool fabrics are first pretreated with nanoTiO2 and BTCA at different concentrations. The dyeing process is then carried out on the pretreatedfabrics with C. I. Acid Blue 113 and C. I. Acid Black 3 dyes. Also, the central composite design analysis isapplied to design the relation between nano TiO2 and BTCA concentrations, and dye exhaustion. Theresponse surface methodology is also applied to find the optimum conditions for the wool fabricpretreatment. The scanning electron microscopy and X-ray diffraction are employed to indicate thepresence, crystal type and size of TiO2 nanoparticles on the wool surface. The pretreatment optimizationon the wool surfaces considerably enhances the absorption of acid dyes. The suggested methoddemonstrates the improvement of fastness properties than control dyeing and could be introduced as anew route, disclosing various desirablemulti-functional characteristics, to wool fabric. This technique isalso free from some of the disadvantages of acid chemical involved in dyeing such as damage to woolfabrics than wool conventional dyeing.
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