Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 3287-3294 |
| Number of pages | 8 |
| Journal | Industrial & Engineering Chemistry Research |
| Volume | 50 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2011 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- coating binder
- coating additive
- dye distribution
- inkjet printing
- diffusion
- absorption
- surface charge
- crystallinity
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Absorption capability and inkjet ink colorant penetration into binders commonly used in pigmented paper coatings. / Lamminmäki, Taina (Corresponding Author); Kettle, John; Puukko, Pasi; Gane, Patrick.
In: Industrial & Engineering Chemistry Research, Vol. 50, No. 6, 2011, p. 3287-3294.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Absorption capability and inkjet ink colorant penetration into binders commonly used in pigmented paper coatings
AU - Lamminmäki, Taina
AU - Kettle, John
AU - Puukko, Pasi
AU - Gane, Patrick
N1 - Project code: 38828-1.4
PY - 2011
Y1 - 2011
N2 - The absorption of coating binders used in inkjet coatings plays an important role apart from that of the porosity and pore structure of the pigment coating layer. The aim of this work is to clarify how different binder films absorb water-based dye-containing inks and how changes in the ionic nature of both ink dye and binder films affect the ink absorption capability and the final colorant location in the binder film. The studied commercial binders were one carboxylated, and a range of partially hydrolyzed and fully hydrolyzed polyvinyl alcohol (PVOH), and these were compared to an anionic styrene acrylic latex. The hydrolysis modifies the effective crystallinity and hence the swelling tendency. The results show that as the hydrophobicity of the PVOH binder increases, the less the binder absorbs the water-based ink vehicle and the colorant of the ink locates/fixes more on the top part of the coating structure. Both ink vehicle and dye colorant diffuse into the binder film. It was observed that the carboxylated PVOH film produces the most intense coloration (darkest blue color of cyan ink) as the greater ink vehicle absorption promotes the high colorant amount in the film. The combination of opposite charges of the binder film and dye-based ink colorant fixes the colorant most effectively to the top part of the film by the action of chromatographic separation and adsorption.
AB - The absorption of coating binders used in inkjet coatings plays an important role apart from that of the porosity and pore structure of the pigment coating layer. The aim of this work is to clarify how different binder films absorb water-based dye-containing inks and how changes in the ionic nature of both ink dye and binder films affect the ink absorption capability and the final colorant location in the binder film. The studied commercial binders were one carboxylated, and a range of partially hydrolyzed and fully hydrolyzed polyvinyl alcohol (PVOH), and these were compared to an anionic styrene acrylic latex. The hydrolysis modifies the effective crystallinity and hence the swelling tendency. The results show that as the hydrophobicity of the PVOH binder increases, the less the binder absorbs the water-based ink vehicle and the colorant of the ink locates/fixes more on the top part of the coating structure. Both ink vehicle and dye colorant diffuse into the binder film. It was observed that the carboxylated PVOH film produces the most intense coloration (darkest blue color of cyan ink) as the greater ink vehicle absorption promotes the high colorant amount in the film. The combination of opposite charges of the binder film and dye-based ink colorant fixes the colorant most effectively to the top part of the film by the action of chromatographic separation and adsorption.
KW - coating binder
KW - coating additive
KW - dye distribution
KW - inkjet printing
KW - diffusion
KW - absorption
KW - surface charge
KW - crystallinity
U2 - 10.1021/ie102178x
DO - 10.1021/ie102178x
M3 - Article
VL - 50
SP - 3287
EP - 3294
JO - Industrial & Engineering Chemistry Research
JF - Industrial & Engineering Chemistry Research
SN - 0888-5885
IS - 6
ER -