Antibacterial finishing of flat textiles by ink-jet printing

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Abstract:

The novel, original method of antibacterial finishing of flat textiles by ink-jet printing with application of nano-silver has been developed. The silver particles were prepared by direct reduction of silver salt-containing ink on and into the fibres (in-situ method). The one- or two-nozzles' system was used on an industial ink-jet printer equipped with the Xaar 128-360 printing head. Silver finished fabrics were subjected to the surface examination using the scanning electron microscopy (SEM) with energy disperse X-ray spectroscopy (EDX) booster. The chemical state of nanosilver deposited on textiles was determined using X-ray photoelectron spectroscopy (XPS). Also, the size and size distribution profile of silver particles extracted to water were estimated by the dynamic light scattering method (DLS). The changes in silver content on fabric finished after multiple washings were evaluated by an inductively coupled plasma spectroscopy (ICP-ToF-MS) as well as by the laser ablation mass spectroscopy (LA-ICP-ToF-MS). Antibacterial efficacy of silver finished textiles against Bacillus subtilis and Escherichia coli was examinated by a qualitative method (Agar Diffusion Test). The results obtained proved an excellent durablity of silver-finished textiles even after 50 alkaline washings. The method is protected by 2 patent applications.

Document Type: Research Article

Publication date: January 1, 2010

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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