Browsing by Author "Hebeish, A. A."

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Innovation of Radically New Colorant Hybrid Nanocomposite for Printing Various Textile Fabrics
(KOREAN FIBER SOC, 2019-01) Hebeish, A. A.; Shahin, A.A; RaghebI., A.; E. E, Abd El-Thalouth; H. A, Allam; H A, Shaban
New benign colorant nanoparticles were innovated. The innovation is based on reacting the Indigo Blue Vat Dye with a natural clay named montmorillonite (K10) under sonication. A mixture of the dye and clay (1:1) at a ratio was used. The obtained new colorant nanoparticles in the form of hybrid nanocomposites were applied as a nano pigment in printing on various fabrics. The new colorant succeeded in printing silk, wool, cotton, polyester, and nylon as well as their different blends in the presence and absence of binder. Prints of the new colorant were compared with those obtained using commercial pigment. The effect of adding different amounts of binder to the printing paste on major technical properties of the prints was also investigated. Evaluation of the various printed fabrics was performed through monitoring color strength (K/S), TEM images, SEM micrographs, and overall fastness properties.
Major factors affecting the performance of ESD-protective fabrics
(TAYLOR & FRANCIS LTD, 2010) Hebeish, A. A.; El-Gamal, M. A.; Said, T. S.; Abd El-Hady, R. A. M.
An innovative design was developed to set up a new structure for producing antistatic fabrics, known as electrostatic discharge (ESD) fabrics. The design is based on a thorough investigation of the construction of ESD fabrics and factors associated with it. Emphasis was placed on selection of the conductive fiber and mechanism of manufacturing. Also studied were the level of static control and the different static fabric mechanisms with the ultimate target of fulfilling the concept of antistatic fabrics. Nonwoven and weft knitted techniques were employed to achieve the new structure of antistatic fabrics. The work was further extended to include testing, characterization, and evaluation of the various ESD fabrics obtained in order to clarify their performance and verify the feasibility of the design that has been devised for manufacturing these ESD fabrics.
Multifunctional Smart Nanocolorants for Simultaneous Printing and Antibacterial Finishing of Cotton Fabrics
(NATL INFORM & DOCUMENT CENTRE, 2019-04) Shaban, H. A; Shahin, A. A; Ragheb, A. A; El-Thalouth, I. Abd; Allam, E. E; Hebeish, A. A.
THE presented work studied the synthesis of a new multifunctional smart nanocolorant based on natural clay (montmorillonite K10), chitosan and metal nanoparticles (CuO, ZnO, TiO2 or Ag) using ultrasonic technology. The prepared nanocolorants were characterized for their particle size and properties. These nanocolrants were used in printing paste for application to cotton fabric before and after sonication. Surface morphology antibacterial activity and fastness properties were evaluated for treated fabrics. It is observed that fabrics printed with prepared materials after sonication acquire much smoother surface than those printed with prepared materials before sonication. The new hybrid particles are small enough to diffuse into fibers and they create high fastness properties. In addition, printed fabrics with hybrids particles are highly fixed on the fabric surface.
Technological evaluation of reactive cyclodextrin in cotton printing with reactive and natural dyes
(JOHN WILEY & SONS INC, 2006) Hebeish, A. A.; Ragheb, A. A.; Nassar, S. H.; Allam, E. E.; Abd El Thalouth, J. I.
The chemical modification of cotton fabric with reactive cyclodextrin (R-CD) at different concentrations was carried out to enhance the printability of cotton fabric. The extent of the modification reaction was expressed as %N. Reactive and natural dyes were used to print cotton fabric before and after modification. Printing pastes were applied immediately after preparation or after 24 h of storage. Printing fixation was performed through either steaming or thermal treatment. The effect of the incorporation of R-CD in the printing paste of unmodified cotton was also studied. The results reveal that the extent of the modification reaction increased with increasing R-CD concentration and so did the color strength (K/S) of the printed sample regardless of the dye used. The results also revealed that K/S of the R-CD modified cottons were higher than that of the corresponding unmodified samples regardless of the method of fixation or the time elapsed before printing. On the other hand, the incorporation of R-CD in the printing pastes of reactive dyes, namely, Cibacron Brown 6R-P or Remazol Brilliant Red GG, had adverse effects, most probability due to the (a) increasing viscosity of the paste and/or (b) interaction of the reactive dye with R-CD hydroxyls. The opposite held true when a natural dye was used. Further, the incorporation of R-CD in the printing pastes had no effect on the rheological type of the pastes or the on overall fastness properties of the prints. Nevertheless, such an incorporation of R-CD was accompanied by a remarkable increase in the magnitude of the apparent viscosity. (c) 2006 Wiley Periodicals, Inc.