Effects of Polymer Molecular Weight on the Interaction between Acid Dyes and Poly(vinylpyrrolidone) in Inkjet Ink for Textiles

Park, Ju‐Young; Hirata, Yuichi; Hamada, Kunihiro

doi:10.2115/fiber.67.233

Cited by 3 publications

(4 citation statements)

References 25 publications

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“…This suggests that all R-3 molecules are never incorporated into the OGDE micelles owing to their high water solubility. Thus, in the R-2/OGDE and R-3/OGDE solutions, the anionic groups of the remaining free dyes are believed to interact with the positively charged pyrrolidone rings (pyrrolidone carries partially positive charge on the nitrogen atom) as was pointed out in the previous study [45]. From the above results, the binding affinity of the dyes with the OGDE micelles affects the interaction between the dyes and PVP: the higher is the affinity with the surfactant micelles, the lower is the binding force with PVP.…”

Section: Behavior Of the Acid Dyes In Aqueous Solutionsmentioning

confidence: 62%

“…Also, the dye-additive interaction, i.e. the interaction of the acid dyes with a water-soluble polymer additive, poly(vinylpyrrolidone) (PVP) and surfactant micelles were investigated [45,46]. The higher the solubility of the acid dyes in water (the larger the number of sulfonate groups in the dyes), the lower the binding affinity to PVP and the surfactant micelles, indicating that the hydrophobic interaction is strongly concerned with the binding processes.…”

Section: Introductionmentioning

confidence: 99%

“…The higher the solubility of the acid dyes in water (the larger the number of sulfonate groups in the dyes), the lower the binding affinity to PVP and the surfactant micelles, indicating that the hydrophobic interaction is strongly concerned with the binding processes. Furthermore, the binding constants of the dyes with PVP were diminished by increasing molecular weight of PVP [45]. The binding constants for the nonionic surfactants, octaethylene glycol monododecyl ether (OGDE) and Surfynol 465 (S465), were much larger than those for the anionic surfactant, sodium dodecyl sulfate (SDS), suggesting that the electrostatic repulsion between the negatively charged groups of the dyes and SDS diminishes the affinity [46].…”

Section: Introductionmentioning

confidence: 99%

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Relationship between the dye/additive interaction and inkjet ink droplet formation

2012

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To design adequate ink composition for textile printing, the relationship between the dye/additive interaction and the ink performance are investigated. In the present study, three acid dyes, C. I. Acid Red 88, 13, and 27, a water-soluble polymer poly(vinylpyrrolidone) (PVP) and three surfactants, sodium dodecyl sulfate (SDS), octaethylene glycol monododecyl ether (OGDE), and Surfynol 465 (S465) were used and the dye/additive interaction was investigated by means of visible absorption measurements. The visible absorption spectra of aqueous dye solutions changed with the addition of the nonionic surfactants, but further addition of PVP hardly changed, indicating that the strong binding of the dye molecules with the nonionic surfactant micelles is maintained even in the presence of PVP. In contrast, in the case of SDS, the spectra changed with the addition of the surfactant as well as further addition of PVP. From the above results, the behavior of the acid dyes in three species coexistence system depends on the dye structure, the surfactant structure, the molecular weight of PVP, and so on. Furthermore, to estimate the ink performance, the physical properties of the ink such as viscosity, surface tension, and ink droplet formation were determined. The composition of the ink solution having excellent ink droplet  Corresponding author. Tel.: +81 268 21 5411; fax: +81 268 21 5391 E-mail address: khamada@shinshu-u.ac.jp (K. Hamada) formation was observed, which had appropriate physicochemical properties such as viscosity and surface tension as well as PVP with lower molecular weight. In the optimized ink composition (PVP-1/S465: 1.4/0.004 mol dm -3 ), most of the dye molecules are strongly bound to the PVP chain, but the binding was hardly affected by the addition of S465.

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Section: Behavior Of the Acid Dyes In Aqueous Solutionsmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Relationship between the dye/additive interaction and inkjet ink droplet formation

2012

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“…Furthermore, surfactants are used in inkjet ink to ensure uniform adsorption of colorants on the surface of textiles after printing as well as for improvement of ink permeability; the surfactants enable quick penetration into the textiles and more stable ejec-solutions imparts useful information about the operation mechanisms of the surfactants as additives. In previous studies 16,17 , the interactions between acid dyes and a polymer additive, i.e., poly vinylpyrrolidone , were investigated in detail. As a result, the effects of dye structure, polymer molecular weight, temperature, etc.…”

Section: Introductionmentioning

confidence: 99%