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Development of Aops Based Novel Technology for Water Conservation and Pollution Reduction in Textile Dyeing

Thesis Info

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Author

Shaikh, Irfan Ahmed

Program

PhD

Institute

University of the Punjab

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2010

Thesis Completion Status

Completed

Subject

Earth sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/1105

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676725868351

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This study was conducted with an aim to develop a novel washing-off method to remove unfixed reactive dyes from cotton fabrics with lesser amount of water and energy, without compromising color fastness properties. In this context, ozone was utilized very first time in washing-off process to ascertain color fastness properties of selected reactive dyes. After deep shade dyeing (6% owf) of C.I. Reactive Black 5, C.I. Reactive Blue 19, and C.I. Reactive Orange 7, dyed fabrics were subjected to both conventional and new washing-off methods. The new washing-off process was carried out by introducing the ozone at the bottom of bubble column reactor containing the fabric and washing-off liquor. The new process took place at room temperature using a single bath without draining or refilling with fresh water. Fabrics washed-off with both methods were compared in terms of washing fastness, crocking fastness, change of color, and magnitude of total color difference ( ∆E*cmc (2:1) ). The color fastnesses properties and final shade of the ozone treated fabrics were found to be comparable to those washed-off conventionally. Key Terms: Washing-off, Reactive dyes, AOP, Ozone, Bubble column reactor, Fastness
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فرزند مولاناحبیب الرحمن شروانی

فرزند مولانا حبیب الرحمن خان شروانی

            ماہ گزشتہ میں ہماری مجلس کے دو محترم ارکان بلکہ اساطین کو ’’وداعِ عزیز‘‘ کے دو جانگزا صدمے برداشت کرنے پڑے، مولانا حبیب الرحمن خان شروانی کو اپنے ’’محبوب‘‘ فرزند کی مفارقت دائمی کا داغ اٹھانا پڑا اور حسام الملک نواب سید علی حسن خان کو اپنے برادر بزگوار نظام الملک نواب سید نورالحسن خان کی دائمی جدائی کا غم سہنا پڑا، یہ دونوں بزرگوار ہماری مجلس کے دست و بازو ہیں، ان کا صدمات سے دو چار ہونا ہمارے لئے لازمۂ غم اور داعیۂ ماتم ہے،

لایحزن اﷲ ’’الحبیب‘‘ فانّنی

لآخذ من حالاتہ بنصیب

            مرنے والوں کے لئے دعائے مغفرت انسان کے غم کا علاج نہیں، لیکن اس کی روحانی تشفی کا باعث ہے، اللھم الحقھما بالرفیق الاعلے۔ (سید سليمان ندوی، نومبر ۱۹۱۷ء)

 

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