Abstract
ATR-IR mapping was used to analyze the amount and uniformity of SB latex on the surface of coated paper. It was found that laboratory coatings containing CMC had a higher surface latex content and better uniformity than those without CMC. In calcium carbonate pilot coatings, surface latex content increased and uniformity improved as coat weight increased. However, back-trap mottle was greater in the samples with higher coat weights. In all pilot coatings, the surface latex content was 1-2 parts lower than in the coating color formulation itself. IR surface analysis and z-directional latex distribution analysis suggest that during coating layer consolidation the latex moved towards the base paper more than the pigment.
| Original language | English |
|---|---|
| Pages (from-to) | 665-669 |
| Number of pages | 5 |
| Journal | Nordic Pulp and Paper Research Journal |
| Volume | 21 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Dec 2006 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- Coated paper
- Infrared spectroscopy
- Latex
- SEM
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Kenttä, E., Pöhler, T., & Juvonen, K. (2006). Latex uniformity in the coating layer of paper. Nordic Pulp and Paper Research Journal, 21(5), 665-669. https://doi.org/10.3183/npprj-2006-21-05-p665-669