ASA

ApplicationASA is a neutral paper sizing agent. It imparts water resistance to paper to prevent ink bleeding and paper moisture absorption.Application scope: containerboard, white cardboard, offset paper, etc.; suitable for high-speed paper machines.Advantages: fast curing, sizing effect is fully formed once paper exits the machine, no surface slippage, compatible with calcium carbonate filler.Disadvantages: highly prone to hydrolysis; must be emulsified on-site and used immediately; tends to form deposits that stick to rolls.

Industry News & TrendsExpansion of domestic packaging paper capacity drives ASA demand, and local substitution is steadily advancing.R&D focus: improve emulsification technology to reduce hydrolytic deposits and contaminants in white water.Differentiated competition with AKD: ASA is widely used for high-speed packaging paper; AKD is chosen for long-term sizing applications.Price fluctuations of upstream α-olefin raw materials directly affect ASA costs.