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EFFECT OF ADDITION OF WET-STRENGTH AGENT ON TENSILE STRENGTH OF PAPER

By
Edina Husić ,
Edina Husić
Contact Edina Husić

Natron-Hayat d.o.o., Maglaj, Bosnia and Herzegovina

Šefkija Botonjić
Šefkija Botonjić

Natron-Hayat d.o.o.,, Maglaj, Bosnia and Herzegovina

Abstract

Wet-strength paper production is of great significance due to its prominent importance in everyday consumer activities. Production of these paper types is very challenging for the manufacturer since they have to meet very specific demands. Wet-strength paper products include bags that come in contact with moisture and wet products, hygienic and kitchen towels, paper towels, packaging products (packages for liquids, aseptic dishes, and a variety of packaging for food), and other special purposes items (teabags, coffee filters, paper money, etc.) Throughout this research, the focus was on the effects a wet strength agent has on the tensile strength of paper. The wet strength property of paper is the ratio between the strength of paper in the wet and dry state. The strength in the dry state comes from the hydrogen bonds present in natural cellulose, while the strength of paper in the wet state requires waterproof (covalent) bonds created by the use of a wet strength agent. The wet strength agent used is a cationic PAE resin. The aim of the work is to determine the optimal amount of agent needed in relation to the required value of the tensile strength property of the paper. The investigation of these influences was carried out on Semi Extensible Standard Kraft type of paper in Natron-Hayat.

References

Biermann, C. J. (1996). Handbook of Pulping and Papermaking, 2nd Edition. Academic Press Limited, London.
Husić, E. (2021). Wet strength papir, hemizam i uticaj na fizičko-mehaničke osobine papira. Univerzitet u Zenici, Metalurško-tehnološki fakultet, Zenica.
International Standards Office, ISO 1924- 2:2008; Paper and board — Determination of tensile properties — Part 2: Constant rate of elongation method (20 mm/min), Geneva: ISO.2008. (n.d.-a).
International Standards Office, ISO 1924- 2:2008; Paper and board — Determination of tensile properties — Part 2: Constant rate of elongation method (20 mm/min), Geneva: ISO.2008. (n.d.-b).
International Standards Office, ISO 1924- 3:2005 Paper and board—Determination of tensile properties— Part 3: Constant rate of elongation method (100 mm/min), Geneva: ISO.2005. (n.d.).
International Standards Office, ISO 3781:2011, Paper and board — Determination of tensile strength after immersion in water, Geneva: ISO.2011. (n.d.).
Maxwell, C. S. (1965). Wet Strength in Paper and Paperboard. In Monograph (Issue 29, pp. 23–26). TAPPI, Atlanta.

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