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UV Curable Pretreatment of Polyester Fabrics for Inkjet Printing

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Various woven and knitted polyester fabrics were pretreated with formulations containing waterborne UV curable resins and silica particles to improve inkjet print quality. The UV curable resins and silica were chosen to impart the affinity of acid dyebased and direct dye-based inks onto the polyester fabrics. The low add-on of the selected formulation was applied to reduce the adverse effect on fabric hand without sacrificing the print quality. A print pattern with various areas and lines in cyan, yellow, magenta and black colors was designed and the pattern was inkjet printed on the various pretreated fabrics with a wide-format inkjet printer (Encad Novajet 750) to investigate the effects of the UV curable pretreatment on the print quality. Experimental results show that improved line quality in terms of the line width gain and the edge raggedness was observed for the lines printed on the pretreated fabrics. In particular, the 2 pt-line width of magenta color on the pretreated taffeta fabric was reduced by 13.8% and the 2 pt-line raggedness of yellow color on the pretreated taffeta fabrics was reduced by 80% compared to that on the untreated fabrics. Generally, increase in silica content inhibits inter-color bleeding onto the adjacent colored areas. For example, a 6% pretreatment formula of 10 parts UV curable resin and 6 parts of the silica particles can yield sharply defined images, while the printed fabrics still maintain a very good hand.

Document Type: Research Article

Publication date: 2007-01-01

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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