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?THE EFFECT OF AMINo" ACIDS ONTHE ADSORPTION OF DIRECT RED ON CELLULOSE FIBRES

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Title: ?THE EFFECT OF AMINo" ACIDS ONTHE ADSORPTION OF DIRECT RED ON CELLULOSE FIBRES

Authors: Shahina Waheed, M.Farooq Arif, Badruddin Khan

Journal: Pakistan Journal of Scientific and Industrial Research (Series B: Biological Sciences)

HEC Recognition History
Category From To
Y 2023-07-01 2024-09-30
Y 2022-07-01 2023-06-30
Y 2021-07-01 2022-06-30
Y 2020-07-01 2021-06-30
Y 1900-01-01 2005-06-30

Publisher: PCSIR Scientific Information Centre

Country: Pakistan

Year: 1998

Volume: 41

Issue: 3

Language: English

Keywords: Direct red dyeAmino acidsCellulose fibreDyeing rate.

Categories
Textile Chemistry (59) Dye Chemistry (34) Colloid Chemistry (8) Surface Chemistry (42) Materials Science (8025)

Abstract

Equilibrium adsorption isotherms and rates of dyeing for Direct Red on cotton fibres pretreated with solutions of Valine, Threonine, Proline and Histidine in aqueous acetic acid were measured. Amino acid treatment increased the rate of dyeing with Direct Red and improved the wet fastness properties of the dyed cotton. At lower concentrations of amino acids, the order of exhaustion value was Threonine> Valine> Proline> Histidine whereas at higher concentrations, the order changed as Threonine> Proline> Valine> Histidine.

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