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 |
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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