Paper Strengthening Agents /Strengthening Agentsa. Dry Strength Agents
Function: They can effectively enhance the tensile strength, stiffness, breaking length, and folding endurance of paper, improving the overall strength performance of paper.Examples: Cationic polyacrylamide resins are common dry strength agents.b. Wet Strength Agents
Chemical Name ： Polyamide Epichlorohydrin Resin ，Solid Content 12.5%, 15%, 25%
CAS No. 25212-19-5
Function: They are used to increase the wet strength of paper, enabling it to resist damage from water and maintain certain strength properties when wet.Examples: Cationic amide can form hydrogen bonds with the amide groups of fibers and is often used as a wet strength agent.
