EXPEL-200D is a very effective size in neutral and slightly alkaline condition, especially in paper made from furnish that contains CaCO3. Sizing can be promoted by adding a small amount of CaCO3 to furnish that contains other fillers such as talc,etc.
EXPEL-200D is an effective size for stock that contains unbleached pulp and/or recycled pulp, provided the pH of the stock is in the region of 7-8. This ensures that the alum in the recycled pulp does not cause any difficulties. Expel-200D is also a very effective size in paper required for high wet strength and strong size degree.
EXPEL-200D is usually fully cured and shows maximum size degree within 1-2 days. The higher the drying temperature and pH, more quickly it cures. Proper use of fixing agent can enhance sizing efficiency
Share Alkyl Ketene Dimer Emulsion Alkaline Sizing Agent in Social Media