UV-Curable Pretreatments for Digital Printing Textile Substrates
Abstract:Textile substrates for digital printing requires pre- and post-treatments to minimize problems such as ink bleeding and poor wet, light and smear fastnesses, which are mainly associated with the porous nature of textile substrates and the dyes and inks used. We investigated the pretreatments for cotton print fabrics using β-cyclodextrin dispersed in UV-curable acrylic emulsion to improve the digital print quality. The woven and knit cotton fabrics were pretreated by spraying with two recipes containing different amounts of β-cyclodextrin, polyethylene glycol diacrylate (a UV-curable resin), and 2-hydroxy-2-methyl-1-phenyl propanone (a photo initiator). The curing of the resin on treated fabrics was achieved with different dosage of UV radiation. HP DeskJet 820CSE printer was used for printing a test pattern on the treated cotton fabrics. The print quality such as line width and color variation was determined with Personal IAS System™ supplied by the QEA (Burlington, MA). It was found that the best print quality, which is comparable to photographic paper used as control, can be achieved with 10% β-cyclodextrin and 90% resin cured at 6 m/min under UV intensity of 118 W/cm. The coated fabrics showed a harsh hand and were somewhat stiff, which is undesirable in applications requiring drape and suppleness.
Document Type: Research Article
Publication date: 2004-01-01
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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