Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 9-19 |
| Number of pages | 11 |
| Journal | Tappi Journal |
| Volume | 13 |
| Issue number | 7 |
| Publication status | Published - 2014 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- coating
- thin coating
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Thin coatings for paper by foam coating. / Kinnunen-Raudaskoski, Karita; Hjelt, Tuomo; Kenttä, Eija; Forsström, Ulla.
In: Tappi Journal, Vol. 13, No. 7, 2014, p. 9-19.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Thin coatings for paper by foam coating
AU - Kinnunen-Raudaskoski, Karita
AU - Hjelt, Tuomo
AU - Kenttä, Eija
AU - Forsström, Ulla
PY - 2014
Y1 - 2014
N2 - The future of paper products is predicted to lie in intelligent and functional paper properties. These properties are achieved by using coating materials, which are usually very expensive, but the amount needed is also very small. The application of these small amounts requires a new type of coating method; conventional coating methods used in the industry today are not capable of providing ultrathin layers. In this study we introduce foam coating, a technology widely used in the textile and nonwovens industries. Foam coating technology offers a unique opportunity to apply coating on the web surface thinly enough to be economically viable. Our pilot-scale studies show that a thin coating of nanomaterial at a thickness of 1 µm or less and coat weight of 0.3-2.0 g/m2 is enough to change paper surface properties and enable the functionalization of the paper surface. This report describes the applicability of the curtain-like foam coating technology in unmodified cellulose nanofiber (CNF) applications. Application: Foam coating technology offers a unique opportunity to apply coating on the web surface thinly enough to be economically viable. The method is suitable for nanomaterial applications (e.g., cellulose nanofibers) onto fiber-based substrates.
AB - The future of paper products is predicted to lie in intelligent and functional paper properties. These properties are achieved by using coating materials, which are usually very expensive, but the amount needed is also very small. The application of these small amounts requires a new type of coating method; conventional coating methods used in the industry today are not capable of providing ultrathin layers. In this study we introduce foam coating, a technology widely used in the textile and nonwovens industries. Foam coating technology offers a unique opportunity to apply coating on the web surface thinly enough to be economically viable. Our pilot-scale studies show that a thin coating of nanomaterial at a thickness of 1 µm or less and coat weight of 0.3-2.0 g/m2 is enough to change paper surface properties and enable the functionalization of the paper surface. This report describes the applicability of the curtain-like foam coating technology in unmodified cellulose nanofiber (CNF) applications. Application: Foam coating technology offers a unique opportunity to apply coating on the web surface thinly enough to be economically viable. The method is suitable for nanomaterial applications (e.g., cellulose nanofibers) onto fiber-based substrates.
KW - coating
KW - thin coating
M3 - Article
VL - 13
SP - 9
EP - 19
JO - Tappi Journal
JF - Tappi Journal
SN - 0734-1415
IS - 7
ER -