In the competitive landscape of the paper industry, the quality and performance of paper products are paramount. Achieving superior characteristics, particularly wet strength, often hinges on the quality of the chemical additives used, and the underlying intermediates. For paper chemical manufacturers and paper mills alike, securing a reliable WSR intermediate supplier is a crucial step towards ensuring product excellence and operational efficiency.

The WSR intermediate is a foundational chemical for creating advanced wet strength agents, which are indispensable for paper products that must retain their integrity when wet. This intermediate, a polyamide aqueous solution, is synthesized through a controlled process involving dibasic acid and polyamine condensation. Its critical role is in its subsequent reaction with epichlorohydrin to form polyamide-epichlorohydrin (PAE) polymers. These polymers are the key to imparting significant wet strength to paper, making it suitable for demanding applications like labels, food packaging, and currency paper.


As a prominent manufacturer and supplier in China, NINGBO INNO PHARMCHEM CO.,LTD. specializes in providing high-quality WSR intermediate. Our commitment is to deliver a consistent product that meets the stringent requirements of the paper chemical industry. The intermediate is characterized by its light yellow transparent liquid appearance, a minimum solid content of 40%, and a pH range of 7-10. Sourcing WSR intermediate from a trusted partner like us ensures that your production processes will benefit from predictable chemical reactions and stable end-product performance. We understand that the price of WSR intermediate is a consideration, but we focus on delivering exceptional value through superior quality and reliable supply.


Choosing the right WSR intermediate supplier means partnering with a company that understands the nuances of paper chemistry and can guarantee consistent quality. A stable supply chain and adherence to quality standards are vital for paper chemical manufacturers who rely on these intermediates for their own production lines. The benefits of using our WSR intermediate include enabling the synthesis of wet strength agents with higher humidification strength effects and better storage stability. This directly translates to improved final paper products for consumers and enhanced brand reputation for paper manufacturers.


NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to supporting the paper industry's drive for innovation and quality. We pride ourselves on being a dependable source for essential paper chemical components. For businesses seeking to purchase WSR intermediate or to partner with a reliable manufacturer, our expertise and product quality make us an ideal choice. We help you navigate the complexities of chemical sourcing, ensuring you receive the best materials to excel in your papermaking operations and product development.