Currently on the market with cationic surface sizing agent is the vast majority of foreign imports, the price of imported products in 7500 yuan / ton. While a small number of products for domestic manufacturers, but the price is very expensive, about 7,000 yuan / ton, and the effect is not good foreign products. Domestic manufacturers of most of the products are traditional surface sizing agent. Traditional surface sizing agents are mostly made of polyvinyl alcohol (PVA) or modified starch. PVA surface sizing agent with its own non-positive charge, so the amount of plastic, high cost, and the paper is easy to sizing out powder, hair loss and so on. After the use of modified starch sizing paper easier to mold yellowing, finished paper is not easy to long-term preservation and other deficiencies.
According to authoritative forecasts, China's annual need for surface sizing of about 200,000 tons, which has a cationic surface sizing agent takes about 160,000 tons. The performance of the product quality and foreign products rather, and the price is only 4,500 yuan / ton. Therefore, investment in neutral sizing agent has broad market prospects.