Effect of calendering on physical and mechanical properties of coated papers

Document Type : Research Paper

Authors

1 Assistant Professor, Department of Wood and Paper Industries, Faculty of Mirza Kochak, Someh Sara Branch, Technical and Vocational University (TVU), Guilan, Iran

2 Associate Prof., Faculty of wood and paper engineering, Gorgan university of agricultural sciences and natural resources, Gorgan, Iran

3 Emeritus Professor, Natural resources faculty, Sari university of agricultural sciences and natural resources, Sari, Iran

Abstract

The purpose of this study was to improve properties of the coated papers by calendering. Two types of printing and writing paper (75 and 125gsm) and five coating suspensions (the first suspension with 22.9% binders and 50% solids content, the second with 24.73% binders and 50% solids, the third one with 22.9% binders and 30% solids, fourth suspension with a 24.73% binders and 30% solids and the fifth suspension with 42.3% binders and 50% solids content) were used. The coatings were composed of 80% kaolin clay, 20% ground calcium carbonate, dispersant and different ratios of polyvinyl acetate and lactic acid. The base and coated papers were dried after coating. The calendering treatment was carried out at a temperature of 55° C and 60 kg/cm linear pressure. Air resistance, thickness, water absorption, tearing resistance and bursting strength of papers were determined. The calendering operation was effective in reducing the thickness and increasing the air resistance. Water absorption was decreased only in 75gsm samples. In the effect of calendering the mechanical properties were improved slightly, but in most cases, had an adverse effect on the mechanical indexes.

Keywords

Main Subjects

References

[1] Smook, G. A., 2003. Handbook for pulp and paper technologists, 2th Ed, translated by Mirshokraei, S. A., Aeeizh press, Tehran. 520 p. (In Persian).
[2] Mirshokraei, S. A., 2002. Pulp and paper terminology, Aeeizh press, Tehran. 424 p. (In Persian).
[3] Biermann, C. J., 1996. Handbook of pulping and papermaking. Academic press. 783 p.
[4] Asadi khansari, R. and Dehghani Firouzabadi, M., 2013. Introduce of new paper and cardboard in food packaging. Journal of packaging science and technology, 16(4):46-57. (In Persian).
[5] Asadi khansari, R., Dehghani Firouzabadi, M. and Resalati, H., 2016. The effect of biodegradable coatings on the barrier properties of papers. Iranian journal of wood and paper industries, 7(1):91-101. (In Persian).
[6] Holik, H., (Ed.). 2006. Handbook of paper and board. John Wiley and Sons. 528 p.
[7] Vernhes, P., Bloch, J. F., Blayo, A. and Pineaux, B., 2009. Effect of calendering on paper surface micro-structure: A multi-scale analysis. Journal of materials processing technology, 209(11):5204-5210.
[8] Luu, W. T., Bousfield, D. W. and Kettle, J., 2011. Application of nano-fibrillated cellulose as a paper surface treatment for inkjet printing. In PaperCon Conference. May 1-4, Covington, Kentucky, USA, p 1152-1163.
[9] Schlordt, T., Dermeik, B., Beil, V., Freihart, M., Hofenauer, A., Travitzky, N. and Greil, P., 2014. Influence of calendering on the properties of paper-derived alumina ceramics. Ceramics International, 40(3):4917-4926.
[10] Vähä-Nissi, M., Hildén, S. and Aikala, M., 2016. Coating of paper with highly filled powders. Powder Technology, 294:185-190.
[11] Singhal, A. K., Kumar, S., Gupta, S., Bhardwaj, N. K. and Varadhan, R., 2015. Calcium sulphate as pigment for improved functional properties of coated paper. Progress in Organic Coatings, 79:31-36.
[12] Lavoine, N., Guillard, V., Desloges, I., Gontard, N. and Bras, J., 2016. Active bio-based food-packaging: Diffusion and release of active substances through and from cellulose nanofiber coating toward food-packaging design. Carbohydrate polymers, 149:40-50.
[13] Kjellgren, H., 2005. Barrier properties of greaseproof paper. Karlstad University Studies. 94 p.
[14] Asadi khansari, R., Dehghani Firouzabadi, M. and Resalati, H., 2017. The effect of coatings and coating weight by two types of PCC on barrier and optical properties and roughness of paper. Iranian journal of wood and paper industries, 8(2):283-295. (In Persian).
[15] Kugge, C. and Johnson, B., 2008. Improved barrier properties of double dispersion coated liner. Progress in Organic Coatings, 62(4):430-435.
[16] Vernhes, P., Dubé, M. and Bloch, J. F., 2010. Effect of calendering on paper surface properties. Applied Surface Science, 256(22):6923-6927.
[17] Asadi khansari, R., Dehghani Firouzabadi, M. and Resalati, H., 2017. Fluting and kraft liner papers with GCC coatings and PVA binder. Journal of Wood & Forest Science and Technology, 24(1):145-159. (In Persian).
[18] Bohlin, E., 2011. Optics of coated paperboard, Aspects of surface treatment on porous structures. Karlstad University Studies. 73 p.
Iranian Journal of Wood and Paper Industries
Volume 10, Issue 2
August 2019
Pages 273-285

Files

Share

How to cite

Statistics