Dry strength agent

　　Dry strength agent can be widely used in papermaking of packaging paper, household paper, newsprint, cultural paper and other paper. It can effectively improve the paper folding strength, bursting strength, stiffness, ring crush strength and so on. On papermaking system with much anionic impurities or high electrolyte concentration, the effect is particularly evident. At the same time it has retention effect to flake fine and filler can reduce the loss of fibers and linting and dusting phenomenon. It can produce enough dry strength and allows the use of inexprensive fiber or a higher proportion of secondhand fiber.
　　　
 Physical propertiesAppearance: colorless or light yellow viscous liquidCharge types: amphoteric ion (cation)Solid content: 15% ± 1%Viscosity: 7000 ± 3000 mpa.s (25 ℃)PH value: 3.5 ± 1Water solubility: soluble in cold waterGuaranteed quality period: 3 months (5 ℃ -35 ℃, avoid direct sunlight)

 Main features1. Improve the tensile strength, stiffness, ring crush strength, bursting strength, folding endurance and other physical index.2. Improve retention rate of the fine fiber and filler and rainage performance.