cartonboard wet-end sizing agents
Sizing agents hold an vital role in cartonboard production, significantly enhancing the performance and quality of packaging solutions. Wet-end sizing agents are primarily used to enhance water resistance throughout the body of the paper.
An ingredient that yields water-resistance at the core
Alkenyl Succinic Anhydride (ASA) technology is added when the paper is being formed in the wet-end (internal size), providing a fast reaction rate with cellulose and develops efficient hydrophobicity in a range of pulp furnishes, such as drywall and gypsum board. As an internal size, ASA has less impact on final product friction properties as compared to Alkyl Ketene Dimer (AKD).
Maleic anhydride is a key raw material (manufactured by Aurorium) that brings a combination of reactivity, functionality, and compatibility to both ASA and SMA chemistries.
In the paper industry, ASA (derived from maleic anhydride) acts as a sizing agent. It helps in providing water repellency to paper, improving its wet strength. Bersize ASA can be tuned to the wet-end chemistry of a paper machine due to the ability to optimize the emulsifier on site. By using Bersize Sizing Agent, 1/5 of the amount of product is used, when compared to alternative sizing agents.
Bersize™ Sizing Agent
- produced in North America and Europe
- excellent shelf life
- greener for transport (no water required)
- suitable for paper grades requiring hydrophobicity
starch modifiers fight grease
paper & packaging takeout you can handle When ordering food to go, we all have experienced a paper bag or food container that has lost its structural integrity from being saturated with grease. This can be prevented by coating the inside of the food takeout container with a starch that stops oil from seeping through. These starches are treated with additives such as Indapro™ 5820 that help stop the bag from becoming soggy and creating a greasy mess.
sizing agents for water-resistance
paper & packaging protect your box No one likes a soggy box. Cardboard boxes travel miles and miles to reach their destination through all types of environments and weather; that’s why protecting a box on its journey is crucial. During the delivery process, these exterior factors can impact the integrity of items inside. With the correct sizing agents, water-resistant containerboard can be achieved. Two highly reactive hydrophobic sizing agents, Bersize™ ASA (Alkenyl Succinic Anhydride) and Xiran SMA (Styrene Maleic Anhydride), provide water-resistant properties to boxes while improving overall dry strength, without impacting final product friction.
